[User]
I'd like to design a bookmark, but it's kind of complex and I need a parametric OpenSCAD design.

First, it'll have a main body that I'd call a "label." This label should be a rounded rectangle, with adjustable width, height, and depth. I need to be able to control the corner radius, and also have an option to bevel the edges, so I'll need two separate radius controls – one for the normal rounding, and one for the bevel if it’s enabled.

Second, I want to put text on the label. The text should also be customizable, including the font, size, depth, and the spacing between characters. I'd like to control the text scaling on the X and Y axes separately. The text should be able to be either engraved (cut in) or raised (out) on the label.

Finally, there should be a "clip" attached to the label. The clip needs to be adjustable, specifically the width, height, and depth of the clip. This clip will be a rounded shape, a kind of elongated pill shape, with adjustable radius at the ends. I need to be able to control the distance between the rounded rectangle and the first offset of the clip, and also be able to set the second offset.  The whole clip should be made by using offset operations on the same rounded shape. The position of the clip along the long axis of the label, should be adjustable as well (left, right or center).

I'd like to set the overall resolution, so I can use low resolution for previewing, and high for final rendering.

I think that covers everything! I'm looking forward to seeing what you come up with. I'd like the design to be fully parametric, and I would also like to have all of the text font options to be shown in the customizer. It would be ideal if this was made from a single file.

[Assistant]
Bookmark.scad:
```
/* [Text] */
text        = "Ours Magazine";
textFont    = "Acme"; //[ABeeZee,Abel,Abril Fatface,Aclonica,Acme,Actor,Adamina,Advent Pro,Aguafina Script,Akronim,Aladin,Aldrich,Alef,Alegreya,Alegreya SC,Alegreya Sans,Alegreya Sans SC,Alex Brush,Alfa Slab One,Alice,Alike,Alike Angular,Allan,Allerta,Allerta Stencil,Allura,Almendra,Almendra Display,Almendra SC,Amarante,Amaranth,Amatic SC,Amethysta,Amiri,Amita,Anaheim,Andada,Andika,Angkor,Annie Use Your Telescope,Anonymous Pro,Antic,Antic Didone,Antic Slab,Anton,Arapey,Arbutus,Arbutus Slab,Architects Daughter,Archivo Black,Archivo Narrow,Arimo,Arizonia,Armata,Artifika,Arvo,Arya,Asap,Asar,Asset,Astloch,Asul,Atomic Age,Aubrey,Audiowide,Autour One,Average,Average Sans,Averia Gruesa Libre,Averia Libre,Averia Sans Libre,Averia Serif Libre,Bad Script,Balthazar,Bangers,Basic,Battambang,Baumans,Bayon,Belgrano,Belleza,BenchNine,Bentham,Berkshire Swash,Bevan,Bigelow Rules,Bigshot One,Bilbo,Bilbo Swash Caps,Biryani,Bitter,Black Ops One,Bokor,Bonbon,Boogaloo,Bowlby One,Bowlby One SC,Brawler,Bree Serif,Bubblegum Sans,Bubbler One,Buda,Buenard,Butcherman,Butterfly Kids,Cabin,Cabin Condensed,Cabin Sketch,Caesar Dressing,Cagliostro,Calligraffitti,Cambay,Cambo,Candal,Cantarell,Cantata One,Cantora One,Capriola,Cardo,Carme,Carrois Gothic,Carrois Gothic SC,Carter One,Catamaran,Caudex,Caveat,Caveat Brush,Cedarville Cursive,Ceviche One,Changa One,Chango,Chau Philomene One,Chela One,Chelsea Market,Chenla,Cherry Cream Soda,Cherry Swash,Chewy,Chicle,Chivo,Chonburi,Cinzel,Cinzel Decorative,Clicker Script,Coda,Coda Caption,Codystar,Combo,Comfortaa,Coming Soon,Concert One,Condiment,Content,Contrail One,Convergence,Cookie,Copse,Corben,Courgette,Cousine,Coustard,Covered By Your Grace,Crafty Girls,Creepster,Crete Round,Crimson Text,Croissant One,Crushed,Cuprum,Cutive,Cutive Mono,Damion,Dancing Script,Dangrek,Dawning of a New Day,Days One,Dekko,Delius,Delius Swash Caps,Delius Unicase,Della Respira,Denk One,Devonshire,Dhurjati,Didact Gothic,Diplomata,Diplomata SC,Domine,Donegal One,Doppio One,Dorsa,Dosis,Dr Sugiyama,Droid Sans,Droid Sans Mono,Droid Serif,Duru Sans,Dynalight,EB Garamond,Eagle Lake,Eater,Economica,Eczar,Ek Mukta,Electrolize,Elsie,Elsie Swash Caps,Emblema One,Emilys Candy,Engagement,Englebert,Enriqueta,Erica One,Esteban,Euphoria Script,Ewert,Exo,Exo 2,Expletus Sans,Fanwood Text,Fascinate,Fascinate Inline,Faster One,Fasthand,Fauna One,Federant,Federo,Felipa,Fenix,Finger Paint,Fira Mono,Fira Sans,Fjalla One,Fjord One,Flamenco,Flavors,Fondamento,Fontdiner Swanky,Forum,Francois One,Freckle Face,Fredericka the Great,Fredoka One,Freehand,Fresca,Frijole,Fruktur,Fugaz One,GFS Didot,GFS Neohellenic,Gabriela,Gafata,Galdeano,Galindo,Gentium Basic,Gentium Book Basic,Geo,Geostar,Geostar Fill,Germania One,Gidugu,Gilda Display,Give You Glory,Glass Antiqua,Glegoo,Gloria Hallelujah,Goblin One,Gochi Hand,Gorditas,Goudy Bookletter 1911,Graduate,Grand Hotel,Gravitas One,Great Vibes,Griffy,Gruppo,Gudea,Gurajada,Habibi,Halant,Hammersmith One,Hanalei,Hanalei Fill,Handlee,Hanuman,Happy Monkey,Headland One,Henny Penny,Herr Von Muellerhoff,Hind,Hind Siliguri,Hind Vadodara,Holtwood One SC,Homemade Apple,Homenaje,IM Fell DW Pica,IM Fell DW Pica SC,IM Fell Double Pica,IM Fell Double Pica SC,IM Fell English,IM Fell English SC,IM Fell French Canon,IM Fell French Canon SC,IM Fell Great Primer,IM Fell Great Primer SC,Iceberg,Iceland,Imprima,Inconsolata,Inder,Indie Flower,Inika,Inknut Antiqua,Irish Grover,Istok Web,Italiana,Italianno,Itim,Jacques Francois,Jacques Francois Shadow,Jaldi,Jim Nightshade,Jockey One,Jolly Lodger,Josefin Sans,Josefin Slab,Joti One,Judson,Julee,Julius Sans One,Junge,Jura,Just Another Hand,Just Me Again Down Here,Kadwa,Kalam,Kameron,Kantumruy,Karla,Karma,Kaushan Script,Kavoon,Kdam Thmor,Keania One,Kelly Slab,Kenia,Khand,Khmer,Khula,Kite One,Knewave,Kotta One,Koulen,Kranky,Kreon,Kristi,Krona One,Kurale,La Belle Aurore,Laila,Lakki Reddy,Lancelot,Lateef,Lato,League Script,Leckerli One,Ledger,Lekton,Lemon,Libre Baskerville,Life Savers,Lilita One,Lily Script One,Limelight,Linden Hill,Lobster,Lobster Two,Londrina Outline,Londrina Shadow,Londrina Sketch,Londrina Solid,Lora,Love Ya Like A Sister,Loved by the King,Lovers Quarrel,Luckiest Guy,Lusitana,Lustria,Macondo,Macondo Swash Caps,Magra,Maiden Orange,Mako,Mallanna,Mandali,Marcellus,Marcellus SC,Marck Script,Margarine,Marko One,Marmelad,Martel,Martel Sans,Marvel,Mate,Mate SC,Maven Pro,McLaren,Meddon,MedievalSharp,Medula One,Megrim,Meie Script,Merienda,Merienda One,Merriweather,Merriweather Sans,Metal,Metal Mania,Metamorphous,Metrophobic,Michroma,Milonga,Miltonian,Miltonian Tattoo,Miniver,Miss Fajardose,Modak,Modern Antiqua,Molengo,Molle,Monda,Monofett,Monoton,Monsieur La Doulaise,Montaga,Montez,Montserrat,Montserrat Alternates,Montserrat Subrayada,Moul,Moulpali,Mountains of Christmas,Mouse Memoirs,Mr Bedfort,Mr Dafoe,Mr De Haviland,Mrs Saint Delafield,Mrs Sheppards,Muli,Mystery Quest,NTR,Neucha,Neuton,New Rocker,News Cycle,Niconne,Nixie One,Nobile,Nokora,Norican,Nosifer,Nothing You Could Do,Noticia Text,Noto Sans,Noto Serif,Nova Cut,Nova Flat,Nova Mono,Nova Oval,Nova Round,Nova Script,Nova Slim,Nova Square,Numans,Nunito,Odor Mean Chey,Offside,Old Standard TT,Oldenburg,Oleo Script,Oleo Script Swash Caps,Open Sans,Open Sans Condensed,Oranienbaum,Orbitron,Oregano,Orienta,Original Surfer,Oswald,Over the Rainbow,Overlock,Overlock SC,Ovo,Oxygen,Oxygen Mono,PT Mono,PT Sans,PT Sans Caption,PT Sans Narrow,PT Serif,PT Serif Caption,Pacifico,Palanquin,Palanquin Dark,Paprika,Parisienne,Passero One,Passion One,Pathway Gothic One,Patrick Hand,Patrick Hand SC,Patua One,Paytone One,Peddana,Peralta,Permanent Marker,Petit Formal Script,Petrona,Philosopher,Piedra,Pinyon Script,Pirata One,Plaster,Play,Playball,Playfair Display,Playfair Display SC,Podkova,Poiret One,Poller One,Poly,Pompiere,Pontano Sans,Poppins,Port Lligat Sans,Port Lligat Slab,Pragati Narrow,Prata,Preahvihear,Press Start 2P,Princess Sofia,Prociono,Prosto One,Puritan,Purple Purse,Quando,Quantico,Quattrocento,Quattrocento Sans,Questrial,Quicksand,Quintessential,Qwigley,Racing Sans One,Radley,Rajdhani,Raleway,Raleway Dots,Ramabhadra,Ramaraja,Rambla,Rammetto One,Ranchers,Rancho,Ranga,Rationale,Ravi Prakash,Redressed,Reenie Beanie,Revalia,Rhodium Libre,Ribeye,Ribeye Marrow,Righteous,Risque,Roboto,Roboto Condensed,Roboto Mono,Roboto Slab,Rochester,Rock Salt,Rokkitt,Romanesco,Ropa Sans,Rosario,Rosarivo,Rouge Script,Rozha One,Rubik,Rubik Mono One,Rubik One,Ruda,Rufina,Ruge Boogie,Ruluko,Rum Raisin,Ruslan Display,Russo One,Ruthie,Rye,Sacramento,Sahitya,Sail,Salsa,Sanchez,Sancreek,Sansita One,Sarala,Sarina,Sarpanch,Satisfy,Scada,Scheherazade,Schoolbell,Seaweed Script,Sevillana,Seymour One,Shadows Into Light,Shadows Into Light Two,Shanti,Share,Share Tech,Share Tech Mono,Shojumaru,Short Stack,Siemreap,Sigmar One,Signika,Signika Negative,Simonetta,Sintony,Sirin Stencil,Six Caps,Skranji,Slabo 13px,Slabo 27px,Slackey,Smokum,Smythe,Sniglet,Snippet,Snowburst One,Sofadi One,Sofia,Sonsie One,Sorts Mill Goudy,Source Code Pro,Source Sans Pro,Source Serif Pro,Special Elite,Spicy Rice,Spinnaker,Spirax,Squada One,Sree Krushnadevaraya,Stalemate,Stalinist One,Stardos Stencil,Stint Ultra Condensed,Stint Ultra Expanded,Stoke,Strait,Sue Ellen Francisco,Sumana,Sunshiney,Supermercado One,Sura,Suranna,Suravaram,Suwannaphum,Swanky and Moo Moo,Syncopate,Tangerine,Taprom,Tauri,Teko,Telex,Tenali Ramakrishna,Tenor Sans,Text Me One,The Girl Next Door,Tienne,Tillana,Timmana,Tinos,Titan One,Titillium Web,Trade Winds,Trocchi,Trochut,Trykker,Tulpen One,Ubuntu,Ubuntu Condensed,Ubuntu Mono,Ultra,Uncial Antiqua,Underdog,Unica One,UnifrakturCook,UnifrakturMaguntia,Unkempt,Unlock,Unna,VT323,Vampiro One,Varela,Varela Round,Vast Shadow,Vesper Libre,Vibur,Vidaloka,Viga,Voces,Volkhov,Vollkorn,Voltaire,Waiting for the Sunrise,Wallpoet,Walter Turncoat,Warnes,Wellfleet,Wendy One,Wire One,Work Sans,Yanone Kaffeesatz,Yantramanav,Yellowtail,Yeseva One,Yesteryear,Zeyada]
textSize    = 6;
textDepth   = 0.6;
textStyle   = "out"; // [in, out]
textScaleX  = 1;
textScaleY  = 1;
charSpacing = 1.1;

/* [Label] */
labelWidth  = 60;
labelHeight = 20;
labelDepth  = 2;
labelRadius = 3;
labelBivel  = 0.5;

/* [Clip] */
clipPosition = "center"; //[left, right, center]
clipWidth    = 20;
clipHeight   = 50;
clipDepth    = 1;
clipRadius   = 3;
clipOffset1  = 3;
clipOffset2  = 2;

/* [Output] */
resolution = 12;

/* [Hidden] */

$fn = resolution;

_labelRadius = labelRadius / 2 < labelBivel ? labelBivel * 2 : labelRadius;

module roundedCorner() {
    cylinder(r = _labelRadius, h = labelDepth);
}

module roundedAndBeveledCorner() {
    hull() {
        rotate_extrude(convexity = 10, $fn = resolution * 2)
            translate([_labelRadius - labelBivel, labelBivel, 0])
                circle(r = labelBivel);
        translate([0, 0, labelDepth - labelBivel * 2]) {
            rotate_extrude(convexity = 10, $fn = resolution * 2)
                translate([_labelRadius - labelBivel, labelBivel, 0])
                    circle(r = labelBivel);
        }
    }
}

module roudedLabel(type = 1) {
    r2 = _labelRadius * 2;
    hull() {
        for (i=[0:3]) {
            translate([_labelRadius + (i % 2) * (labelWidth - r2), _labelRadius + (i - i % 2) * (labelHeight - r2) / 2, 0]) {
                if (type == 1) cylinder(r = _labelRadius, h = labelDepth);
                else roundedAndBeveledCorner();
            }
        }
    }
}

module roudedAndBelevedLabel() {
    roudedLabel(2);
}

module textLabel() {
    translate([labelWidth / 2, labelHeight / 2, labelDepth])
        linear_extrude(height = textDepth)
            scale([textScaleX, textScaleY, 0])
            text(
                text = text,
                font = textFont,
                size = textSize,
                valign = "center",
                halign = "center",
                spacing = charSpacing
            );
}

module labelBase() {
    if (labelBivel <= 0 && labelRadius <= 0)
        cube([labelWidth, labelHeight, labelDepth]);
    else if (labelBivel <= 0)
        roudedLabel(1);
    else
        roudedLabel(2);
}

module label() {
    if (textStyle == "out") {
        labelBase();
        textLabel();
    }
    else if (textStyle == "in") {
        difference() {
            labelBase();
            translate([0, 0, -textDepth+0.001])
                textLabel();
        }
    }
}

module clipBase() {
    baseHeight = clipHeight - clipWidth / 2;
    translate([0, -baseHeight, 0]) {
        hull() {
            translate([clipRadius, 0, 0])
                circle(r = clipRadius, h = clipDepth);
            translate([clipWidth - clipRadius, 0, 0])
                circle(r = clipRadius, h = clipDepth);
            translate([clipWidth / 2, -clipWidth / 2, 0])
                circle(r = clipRadius, h = clipDepth);
        }
        square([clipWidth, baseHeight + _labelRadius + clipOffset1]);
    }
}

module clip() {
    linear_extrude(clipDepth) {
        difference() {
            clipBase();
            offset(-clipOffset1) clipBase();
        }
        offset(-clipOffset1 - clipOffset2) clipBase();
    }
}

module output() {
    label();

    if(clipPosition == "left") {
        translate([labelRadius, 0, 0])
            clip();
    }

    if(clipPosition == "center") {
        translate([(labelWidth - clipWidth) / 2, 0, 0])
            clip();
    }

    if(clipPosition == "right") {
        translate([labelWidth - clipWidth - labelRadius, 0, 0])
            clip();
    }
}

color("red") output();
```


[User]
I'd like to design a parametric box with a lid, and I'd like to be able to customize a few things. I want to be able to specify the outer radius, wall thickness, number of sides, and the height of both the box and the lid. I also want to be able to control the clearance between the box and the lid.

Additionally, I need to be able to cut a logo into the lid. I should be able to provide a black and white PNG file for the logo, rotate it, and scale it to the lid.

Finally, I'd like to be able to choose whether to generate just the box, just the lid, or both. And I'd like a build plate indicator, which uses the `utils/build_plate.scad` library, so I can preview how it'll sit on my printer.

So, the parameters should be:

*   `objects_to_generate` (integer, -1, 0, 1): -1 for lid only, 0 for both, 1 for box only.
*   `outer_radius` (number): Radius of the circle containing the polygon defining the box's outer shape.
*   `wall_thickness` (number): Thickness of the box walls.
*   `sides` (integer): Number of sides of the box's polygon.
*  `box_height` (number): Height of the box.
*  `lid_height` (number): Height of the lid.
*   `lid_clearance` (number): Clearance between the box and lid.
*   `lid_logo` (string, image_surface:100x100): Path to a 100x100 black and white PNG file for the logo.
*   `logo_angle` (number): Rotation angle of the logo.
*   `logo_size` (number): Size of the logo as a percentage of the inner lid radius.
*  `show_build_plate` (integer, 0, 1): 0 to hide, 1 to show.
*  `build_plate_selector` (integer): Use to choose between several pre-set plates
*   `build_plate_manual_x` (number):  Width of the manual build plate
*   `build_plate_manual_y` (number): Length of the manual build plate

I think that covers it. Could you create the OpenSCAD file(s)?

[Assistant]
Parametric_Lidded_Box_With_Logo.scad:
```
use <utils/build_plate.scad>

/* [Box And Lid] */

// Do you want to generate both box and lid?
objects_to_generate = 0; // [0:Box and lid,1:Box only,-1:Lid only]

// How wide should the box be? Imagine it being seen from above, and define the radius of the circle it should be contained into (in mm)
outer_radius = 30;

// How thick should the walls of the box be (in mm)? This number should be smaller that the Outer Radius and Box Height for the box to make sense.
wall_thickness = 3;

// How many sides should the box have? A very high number will produce a box that approximates a cylinder.
sides = 8;

// How tall should the box be (in mm)?  This number should be larger than the Wall Thickness for the box to make sense.
box_height = 50;

// How tall should the lid be (in mm)?
lid_height = 15;

// How much room should be left on all sides between the box and the lid, when the box is closed (in mm)?
lid_clearance = 0.4; //[0:0.1:1]

/* [Logo] */

// Do you want a logo cut into the lid? If so, choose a 100x100 pixels black and white png file. Please note that detached parts in the logo will fall off, if not connected to the rest of the lid.
lid_logo = ""; // [image_surface:100x100]

// Decide the angle of rotation of the logo to be cut, depending on how many faces your box has, or just on your personal taste
logo_angle = "22"; // [0:1:90]

// Decide how large the logo should be on the lid, in percentage of the inner lid radius
logo_size = 0.5; // [0:0.1:1]
/* [Build Plate] */

// display or hide the build plate
show_build_plate = 1; // [0:Hide,1:Show]

//for display only, doesn't contribute to final object
build_plate_selector = 3; //[0:Replicator 2,1: Replicator,2:Thingomatic,3:Manual]
//when Build Plate Selector is set to "manual" this controls the build plate x dimension
build_plate_manual_x = 140; //[100:400]
//when Build Plate Selector is set to "manual" this controls the build plate y dimension
build_plate_manual_y = 100; //[100:400]

/* [Hidden] */

doLid = false;
translation = outer_radius + 1;
doBox = false;

if (objects_to_generate >= 0) { // draw box
    assign(doBox = true) {
        if (doBox == true) {

            translate([translation,0,0]) {
                difference() {
                    linear_extrude(height = box_height) {
                    circle(r = outer_radius, center=true, $fn = sides);
                    }
                    translate([0,0,wall_thickness]) {
                        linear_extrude(height = box_height) {
                        circle(r = outer_radius - wall_thickness, center=true, $fn = sides);
                        }
                    }
                }
            }
        }
    }
}

if (objects_to_generate <= 0) { // draw lid
    assign(doLid = true) {
        if(doLid == true) {
            translate([-translation,0,0]) {

                    if (lid_logo != "") {

                        inner_radius    = outer_radius - (wall_thickness * 2);
                        inner_diameter  = inner_radius * 2;
                        logo_multiplier = 10/inner_diameter;

                        difference() {
                        lid();
                        translate([0,0,lid_height + 10])
                            rotate([0,180,logo_angle])
                                scale([logo_size * logo_multiplier,logo_size * logo_multiplier,(lid_height + 10) * 2])
                                    surface(file = lid_logo, center = true, invert=false);
                        }

                    } else {
                        lid();
                    }
            }
        }
    }
}

module lid() {
    difference() {
                    union() {
                        linear_extrude(height = lid_height) {
                        circle(r = outer_radius, center=true, $fn = sides);
                        }
                        linear_extrude(height = lid_height + wall_thickness) {
                        circle(r = outer_radius - (wall_thickness + lid_clearance), center=true, $fn = sides);
                        }
                    }
                    translate([0,0,wall_thickness]) {
                        linear_extrude(height = lid_height + wall_thickness) {
                        circle(r = outer_radius - (wall_thickness *2), center=true, $fn = sides);
                        }
                    }
                }
}

if (show_build_plate == 1) {
build_plate(build_plate_selector,build_plate_manual_x,build_plate_manual_y);
}

```


[User]
Hey, I'm looking to design a vent adapter for my 3D printer, specifically an Ultimaker 2, that lets me hook up a hose to vent fumes. I have some basic dimensions and a general idea of the shape, but I need it to be parametric so I can tweak it later.

Here's what I'm thinking:

The design will have two main parts: a connector that attaches to the printer and a hose connector. The overall length of the adapter should be adjustable. Let's call that `l`. I’d like to be able to adjust the diameter of the hose connector; let's call the outer diameter `hc_od`. I'd also like to be able to control the length of the hose connector section, calling that `hc_l`. The wall thickness of the whole thing should be a parameter called `thickness`. I want to be able to adjust the dimensions of the actual vent, so I think we need `vent_l` for length, `vent_h` for height and `vent_w` for the width.

Essentially, we'll start with a rectangular vent section that transitions into a circular hose connector. The vent will have two screw holes to attach to the printer; they should be about 10mm in from the edges of the vent length dimension, and 8.5mm in from the edge of the width. I’d also like the screw holes to be 3mm in diameter, which will require creating a difference in the final shape. I'm looking for a robust design, so it should use a minkowski sum with a cylinder to create the shell thickness.

To be a bit more specific, here’s the initial parameters I was thinking of using:

*   `l` = 80mm (total adapter length)
*   `hc_od` = 58.5mm (outer diameter of hose connector)
*   `hc_l` = 30mm (length of hose connector)
*   `thickness` = 3mm (wall thickness)
*   `vent_l` = 220mm (length of vent)
*  `vent_h` = 35mm (height of vent)
* `vent_w` = 30mm (width of vent)

I'd prefer if the code used the `hull` command to smoothly transition between the rectangle and the cylinder. Also, I’d like a small support structure added near the vent side to give it additional structure. Something like a rectangle that’s a bit shorter than the full height and width of the vent. Let's call the support structure support width 3.75mm and length 80% of vent_l, and the height 12mm less than vent_h.

Could you generate an OpenSCAD file (or files) for me based on this? Please also include the recommended Cura settings, like in my example code, as a comment at the top of the file(s). No additional libraries other than standard OpenSCAD ones should be necessary for this.

[Assistant]
vent.scad:
```
$fn=150;

// Total length of the adapter (mm)
l = 80;

// Outer diameter of the hose connector (mm)
hc_od = 58.5;

// Length of the hose connector (mm)
hc_l = 30;

// Thickness of the wall (mm)
thickness = 3;

// Length of the vent (mm)
vent_l = 220;

// Height of the vent (mm)
vent_h = 35;

// Width of the vent (mm)
vent_w = 30;

// You probably do not want to change this.
Delta = 0.1;

module connector_hull(extra) {
	union() {
		cube([vent_w+extra,vent_l+extra,vent_h]);
		hull() {
			translate([0,0,vent_h-Delta])
				cube([vent_w+extra,vent_l+extra,Delta]);
			translate([0,(hc_od+extra)/2,l])
				cylinder(h=Delta, r=hc_od/2+extra/2);
		}
		translate([0,(hc_od+extra)/2,l - Delta])
			cylinder(h=hc_l, r=hc_od/2+extra/2);
	}
}

module connector() {
	difference() {
		minkowski() {
			cylinder(height=l,r=thickness);
			connector_hull(-2*thickness);
		}
		translate([0,0,-Delta])
			connector_hull(-2*thickness);
		translate([0,(hc_od-2*thickness)/2,l-2])
			cylinder(h=hc_l+10, r=hc_od/2-thickness);
	}
	translate([vent_w-thickness,-thickness+(vent_l-vent_l*0.8)/2,0])
		cube([3.75,vent_l*0.8,vent_h-12]);
	difference() {
		translate([vent_w-thickness,-thickness+(vent_l-vent_l*0.8)/2,vent_h-5])
			cube([20,vent_l*0.8,5]);
		translate([vent_w-thickness+8.5,-thickness/2+52.25,vent_h-5-Delta])
			cylinder(h=5+2*Delta, r=1.5);
		translate([vent_w-thickness+8.5,-thickness/2+168.25,vent_h-5-Delta])
			cylinder(h=5+2*Delta, r=1.5);
	}
}

connector();

```


[User]
Hi, I'm looking to create a 3D printable model of a simplified elbow joint for educational purposes, aimed at kids aged 3-12. I want it to be parametric so I can adjust the dimensions for different materials, mainly cardboard tubes and long balloons.

The basic idea is that the model will have two main pieces: a "part1" that represents the upper arm bone (humerus), and a "part2" representing the lower arm bones (radius and ulna). These parts need to connect and allow for rotation like an elbow joint.

Here's a breakdown of the features and parameters I need:

**Overall Structure:**

*   Two main parts: "part1" and "part2".
*   "part1" will have a cylindrical connector for a cardboard tube at one end and a rounded connection point in the middle, at the height of `JointH`.
*   "part2" will have a cylindrical connector for a cardboard tube, on one end and a slot that fits around the rounded connection point of "part1".
*   The two parts should interlock so that "part2" can rotate within a defined angle range.
*   There should be a connector of some kind to tie balloons to on "part2"

**Parameters:**

*   `JointH`:  Elevation of the joint's pivot point (e.g., 50mm).
*   `JointInW`: Width of the inner joint piece (e.g., 20mm).
*   `JointConnectR`: Radius of the pivot connectors (e.g., 5mm).
*   `JointMinAngle`: Minimum rotation angle of the joint (e.g., 60 degrees).
*  `JointMaxAngle`: Maximum rotation angle of the joint (e.g., 180 degrees).
*   `JointR`: Radius of the joint's rounded connection point (e.g., 30mm).
*   `ConnectorR`: Inner radius of the tubes for connection (e.g., 17.5mm - half of 35mm tube).
*   `ConnectorH`: Height of the tube connectors (e.g., 5mm).
*   `ConnectorOverlap`: Additional radius for tube connectors to account for tube wall thickness (e.g., 2mm).
*  `t`: Tolerance for a looser or tighter fit, (e.g. 0.5mm).

**Part 1 ("part1"):**

*   Cylindrical connector for cardboard tube with a radius of `ConnectorR` + `ConnectorOverlap`, and height `ConnectorH` .
*   A rounded connection point with a radius of `JointR` at a height of `JointH`. This connection should be mostly spherical, with an area removed to allow movement. The removal should start at an angle of `JointMinAngle` and ends at `JointMaxAngle`
*   A pivot point hole passing through the connection point. This will help to articulate the joint.

**Part 2 ("part2"):**

*   Cylindrical connector for cardboard tube with a radius of `ConnectorR` and height `ConnectorH`
*   A slot or groove that fits around the rounded connection point of "part1", that allows rotation limited by the defined angle range. The slot or groove should have walls so that it can fit around "part1".
*   A ring or hook on the opposite end from the tube connection to attach a balloon, in particular, the long balloons used to make balloon animals.

**Modules (if applicable):**

*   I think a `innerForm` module for the base of the joint shape would be good.
*   A `rectTorus` and `torus` module seem like they would be useful.
*  A `cannel` module seems good too.
*   A `pie` module would be good for cutting out the slot for part1 and part2.

**Output:**

*   I'd like the OpenSCAD code to generate two STL files, one for each part.

Could you generate the OpenSCAD code for this? Please make sure it's parametric using the variables I've described so I can easily change dimensions. I don't mind if the code is split into multiple files as long as it works. And it would be very helpful if you could add comments to the code.

Thanks!

[Assistant]
Arm_Joint.scad:
```

//Elevation of the joint pivot point
JointH=50; //>JointR
//Width of the inner Joint piece
JointInW=20; //<JointR
//Radius of pivot connectors
JointConnectR=5;

//Minimal angle for joint movement
JointMinAngle=60;
//Miximum angle for joint movement
JointMaxAngle=180;
//The radius of the Joint part
JointR=30;//>ConnectorR

/*[Tube connector]*/
//Inner Radius of the tubes to connect the joint to
ConnectorR=35/2;
//Height of the connector part
ConnectorH=5;
//Additional radius of the connector. Use the width of the tube walls; or (outer radius - inner radius)/2
ConnectorOverlap=2;

//Tolerance to use. If parts fit too tight increment and reprint. If too loose reduce and reprint.
t=0.5;

module part1(r1,r2){
    difference(){
        union(){
            hull(){
                translate([0,0,JointH]) sphere(r=r2);
                cylinder(r=r1+ConnectorOverlap,h=10);
            }
            translate([0,0,-ConnectorH]) cylinder(r=r1,h=ConnectorH);
        }

        n=3;
        translate([0,0,JointH])
        hull(){
        for (a = [JointMinAngle:JointMinAngle/n:JointMaxAngle]) {
            rotate([0,a,0])translate([0,0,-JointH])
                scale((JointInW+t)/JointInW) innerForm(r1,r2);
        }
        }

        translate([0,0,JointH]) rotate([90,0,0]) cylinder(r=JointConnectR+t,h=r2*2-4,center=true);
    }
}

module innerForm(r1,r2){
        hull(){
            translate([0,0,JointH]) rotate([90,0,0]) cylinder(r=r2,h=JointInW,center=true);
            cylinder(r=r1+ConnectorOverlap,h=10);
        }

}

module rectTorus(r1,h,w){
    difference(){
        cylinder(r=r1,h=h);
        cylinder(r=r1-w,h=h);
    }
}

module torus(r1,r2){
    rotate_extrude(convexity = 10)
    translate([r1, 0, 0])
    circle(r = r2);
}

module cannel(r,w){
difference(){
    torus(r,w/2);
    translate([0,0,-w/2])pie(r+w/2, 180, w);
}
}

module part2(r1,r2){
    difference(){
    union(){
        innerForm(r1,r2);
        translate([0,0,-ConnectorH]) cylinder(r=r1,h=ConnectorH);
        translate([0,JointInW/2+4,JointH]) sphere(r=JointConnectR);
        translate([0,-JointInW/2-4,JointH]) sphere(r=JointConnectR);
    }
        //translate([0,0,2]) rectTorus(r1+8,6,8);
        translate([0,0,6]) torus(r1+4,4);

        ChannelWalls=5;
        translate([0,0,JointH]) rotate([270,0,0]) cannel(r2,JointInW-ChannelWalls);
        translate([r2,0,0.1]) cylinder(d=JointInW-ChannelWalls,h=JointH);
        translate([-r2,0,0.1]) cylinder(d=JointInW-ChannelWalls,h=JointH);
    }

}

module pie(radius, angle, height, spin=0) {
    // Negative angles shift direction of rotation
    clockwise = (angle < 0) ? true : false;
    // Support angles < 0 and > 360
    normalized_angle = abs((angle % 360 != 0) ? angle % 360 : angle % 360 + 360);
    // Select rotation direction
    rotation = clockwise ? [0, 180 - normalized_angle] : [180, normalized_angle];
    // Render
    if (angle != 0) {
        rotate([0,0,spin]) linear_extrude(height=height)
            difference() {
                circle(radius);
                if (normalized_angle < 180) {
                    union() for(a = rotation)
                        rotate(a) translate([-radius, 0, 0]) square(radius * 2);
                }
                else if (normalized_angle != 360) {
                    intersection_for(a = rotation)
                        rotate(a) translate([-radius, 0, 0]) square(radius * 2);
                }
            }
    }
}

part1(ConnectorR,JointR);
translate ([-JointR*2.1,0,0])part2(ConnectorR,JointR);

```


[User]
I'd like to design a snack bowl with some text on it. The bowl should have a frustum shape, basically a cone with the top cut off.

Here are the specific dimensions I'm thinking of:
*   The bottom diameter of the cone should be 200 mm.
*   The top diameter of the cone should be 170 mm.
*   The height of the cone should be 60 mm.
*   The interior diameter of the bowl (the space inside where the snacks go) should be 157 mm.
*   The wall thickness of the cone itself should be 2 mm.

I want the words "Snack Bowl" to be written on the side of the cone, and I'd like it to use the `Write.scad` library. I do not have this file so you'll have to include it in your response.

Also, it would be great if the OpenSCAD file is parametric, so I can easily adjust things like the diameters, height, wall thickness and the words later on without having to dig deep into the code. And if possible I'd like a variable to control the smoothness of the bowl (circle facets)

Basically, I want to have a base file and the write file.

[Assistant]
snack_bowl-HQ.scad:
```
use <Write.scad>

wig = 0.01/1; // Number to ensure overlaps.

//Number of facets in a circle. More = smoother.
$fn=180; // [15,20,30,45,60,100]

//Diameter of the bottom of the bowl.
cone_bot = 200;

//Diameter of the top of the bowl.
cone_top = 170;

//Height of the bowl.
cone_h = 60;

//Interior diameter of the bowl.
bowl_d = 157;

//Wall thickness of the cone portion of the bowl.
wall_t = 2;

//Words on the bowl.
words = "Snack Bowl";

delta = (cone_bot-cone_top)/2;
avg_r = (cone_top+cone_bot)/4;
angle = atan(delta/cone_h);

module bowl(TEXT) {
  difference() {
    union() {
      cylinder(r1=cone_bot/2,r2=cone_top/2,h=cone_h,center=false);
      intersection() {
        writecylinder(text=TEXT,where=[0,0,0],radius=avg_r,height=cone_h,h=0.4*cone_h,t=delta);
        cylinder(r1=cone_bot/2+wall_t,r2=cone_top/2+wall_t,h=cone_h,center=false);
      }
    }
    difference() {
      translate([0,0,-wall_t/sin(angle)]) cylinder(r1=cone_bot/2, r2=cone_top/2, h=cone_h,center=false);
      translate([0,0,cone_h-wall_t/sin(angle)]) scale([1,1,2*(cone_h-wall_t)/bowl_d]) sphere(bowl_d/2);
    }
    translate([0,0,cone_h]) scale([1,1,2*(cone_h-wall_t)/bowl_d]) sphere(bowl_d/2);
  }
}

bowl(words);

```
Write.scad:
```
/* 	Version 3
	Added support for font selection (default is Letters.dxf)
	Added WriteCube module
	Added Rotate for text (rotates on the plane of the text)
	Added writesphere
	Added space=     (spacing between characters in char widths) def=1
	Added writecylinder()

 By Harlan Martin
 harlan@sutlog.com
 January 2012

 (The file TestWrite.scad gives More usage examples)
 (This module requires the file Letters.dxf to reside in the same folder)
 (The file Letters.dfx was created with inkscape..Each letter is in its own layer)
 (This module seperates each letter in the string and imports it from Letters.dfx)

*/

	pi=3.1415926535897932384626433832795028841971693993751058209;
	pi2=pi*2;

// These control the default values for write() writesphere() writecube()
// if the parameters are not included in the call. Feel free to set your own
// defaults.

//default settings
	center=false;
	h = 4;			 //mm letter height
	t = 1; 			//mm letter thickness
	space =1; 			//extra space between characters in (character widths)
	rotate=0;			// text rotation (clockwise)
	font = "Letters.dxf";	//default for aditional fonts

// write cube defaults
	face = "front";	 // default face (top,bottom,left,right,back,front)
	up =0;		 //mm up from center on face of cube
	down=0;
	right =0;		 //mm left from center on face of cube
	left=0;

// write sphere defaults
	rounded=false;	 //default for rounded letters on writesphere
	north=0; 		// intial text position (I suggest leave these 0 defaults)
	south=0;
	east=0;
	west=0;
	spin=0;
// writecylinder defaults
	middle=0;     //(mm toward middle of circle)
	ccw=false;   //write on top or bottom in a ccw direction
 	r1=0; 	//(not implimented yet)
	r2=0;	 	//(not implimented yet)

// Contact me if your interested in how to make your own font files
// Its tedious and time consuming, but not very hard

module writecylinder(text,where,radius,height){
	wid=(.125* h *5.5 * space);
	widall=wid*(len(text)-1)/2;
	//angle that measures width of letters on sphere
	function NAngle(radius)=(wid/(pi2*radius))*360;
	//angle of half width of text
	function mmangle(radius)=(widall/(pi2*radius)*360);

	if ((face=="top")||(face=="bottom") ){
		if (face=="top" ){
			if (center==true){
				writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t,
				space=space,east=east,west=west,middle=middle,ccw=ccw);
			}else{
				writecircle(text,where+[0,0,height],radius-h,rotate=rotate,font=font,h=h,t=t,
				space=space,east=east,west=west,middle=middle,ccw=ccw);
			}
		}else{
			rotate(180,[1,0,0])
			if (center==true){
				writecircle(text,where+[0,0,height/2],radius-h,rotate=rotate,font=font,h=h,t=t,
				space=space,east=east,west=west,middle=middle,ccw=ccw);
			}else{
				writecircle(text,where+[0,0,0],radius-h,rotate=rotate,font=font,h=h,t=t,
				space=space,east=east,west=west,middle=middle,ccw=ccw);
			}
		}

	}else{
//		if (radius>0){
			if (center==true)  {
				rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
				translate(where)
				writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h,
					rotate=rotate,t=t,font=font,face=face,up=up,down=down,
					east=east,west=west,center=center,space=space,rounded=rounded);
			} else{
				rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
				translate(where+[0,0,height/2])
					writethecylinder(text,where,radius,height,r1=radius,r2=radius,h=h,
					rotate=rotate,t=t,font=font,face=face,up=up,down=down,
					east=east,west=west,center=center,space=space,rounded=rounded);
			}
// the remarked out code is for cone shaped cylinders (not complete)
//		}else{
//			if (center==true)  {
//				rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
//				translate(where)
//				writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h,
//					rotate=rotate,t=t,font=font,face=face,up=up,down=down,
//					east=east,west=west,center=center,space=space,rounded=rounded);
//			} else{
//				rotate(-mmangle(radius)*(1-abs(rotate)/90),[0,0,1])
//				translate(where+[0,0,height/2])
//					writethecylinder(text,where,radius,height,r1=r1,r2=r2,h=h,
//					rotate=rotate,t=t,font=font,face=face,up=up,down=down,
//					east=east,west=west,center=center,space=space,rounded=rounded);
//			}
//		}
	}
}
module writecircle(text,where,radius){
	wid=(.125* h *5.5 * space);
	widall=wid*(len(text)-1)/2;
	//angle that measures width of letters on sphere
	function NAngle(radius)=(wid/(pi2*radius))*360;
	//angle of half width of text
	function mmangle(radius)=(widall/(pi2*radius)*360);

	if (ccw==true){
		rotate(-rotate+east-west,[0,0,1]){
			rotate(-mmangle(radius-middle),[0,0,1]){
			translate(where)
				for (r=[0:len(text)-1]){
					rotate(-90+r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r
					translate([radius-middle,0,0])
					//rotate(90,[1,0,0])
					//rotate(90,[0,1,0])
					rotate(-270,[0,0,1])  // flip text (botom out = -270)
					write(text[r],center=true,h=h,t=t,font=font);
				}
			}
		}
	}else{
		rotate(-rotate-east+west,[0,0,1]){
			rotate(mmangle(radius-middle),[0,0,1]){
			translate(where)
				for (r=[0:len(text)-1]){
					rotate(90-r*NAngle(radius-middle),[0,0,1]) // bottom out=-270+r
					translate([radius-middle,0,0])
					//rotate(90,[1,0,0])
					//rotate(90,[0,1,0])
					rotate(270,[0,0,1])  // flip text (botom out = -270)
					write(text[r],center=true,h=h,t=t,font=font);
				}
			}
		}
	}

}
module writethecylinder(text,where,radius,height,r1,r2){
	wid=(.125* h *5.5 * space);
	widall=wid*(len(text)-1)/2;
	//angle that measures width of letters on sphere
	function NAngle(radius)=(wid/(pi2*radius))*360*(1-abs(rotate)/90);
	//angle of half width of text

	function mmangle(radius)=(widall/(pi2*radius)*360);
			translate([0,0,up-down])
			rotate(east-west,[0,0,1])
			for (r=[0:len(text)-1]){
				rotate(-90+(r*NAngle(radius)),[0,0,1])
				translate([radius,0,-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid)])
				rotate(90,[1,0,0])
				rotate(90,[0,1,0])
				write(text[r],center=true,h=h,rotate=rotate,t=t,font=font);
		//echo("zloc=",height/2-r*((rotate)/90*wid)+(len(text)-1)/2*((rotate)/90*wid));
			}

}

module writesphere(text,where,radius){
	wid=(.125* h *5.5 * space);
	widall=wid*(len(text)-1)/2;

	echo("-----------------",widall,wid,mmangle(radius));
	//angle that measures width of letters on sphere
	function NAngle(radius)=(wid/(pi2*radius))*360;
	//angle of half width of text
	function mmangle(radius)=(widall/(pi2*radius)*360);

	rotate(east-west,[0,0,1]){
	rotate(south-north,[1,0,0]){
	rotate(spin,[0,1,0]){
	rotate(-mmangle(radius),[0,0,1]){
		if ( rounded== false ){
			translate(where)
			for (r=[0:len(text)-1]){
				rotate(-90+r*NAngle(radius),[0,0,1])
				translate([radius,0,0])
				rotate(90,[1,0,0])
				rotate(90,[0,1,0])
				write(text[r],center=true,h=h,rotate=rotate,t=t,font=font);
			}
		}else{
			difference(){
				translate(where)
				for (r=[0:len(text)-1]){
					rotate(-90+r*NAngle(radius),[0,0,1])
					translate([radius,0,0])
					rotate(90,[1,0,0])
					rotate(90,[0,1,0])
					write(text[r],center=true,h=h,rotate=rotate,t=t*2+h,font=font);
				}
				difference(){ //rounded outside
					sphere(radius+(t*2+h)*2);
					sphere(radius+t/2);
				}
				sphere(radius-t/2); // rounded inside for indented text
			}
		}
	}
}}}
}

module writecube(text,where,size){
	if (str(size)[0] != "["){
		// its a square cube (size was not a matrix so make it one)
		writethecube(text,where,[size,size,size],h=h,rotate=rotate,space=space,
		t=t,font=font,face=face,up=up,down=down,right=right,left=left);

	}else{
		// its not square
		writethecube(text,where,size,h=h,rotate=rotate,space=space,
		t=t,font=font,face=face,up=up,down=down,right=right,left=left);
	}
}
// I split the writecube module into 2 pieces.. easier to add features later
module writethecube(text,where,size){
		if (face=="front") {
			translate([where[0]+right-left,where[1]-size[1]/2,where[2]+up-down])
			rotate(90,[1,0,0])
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
		if (face=="back") {
			translate([where[0]+right-left,where[1]+size[1]/2,where[2]+up-down])
			rotate(90,[1,0,0])   // rotate around the x axis
			rotate(180,[0,1,0])  // rotate around the y axis (z before rotation)
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
		if (face=="left") {
			translate([where[0]-size[0]/2,where[1]-right+left,where[2]+up-down ])
			rotate(90,[1,0,0])   // rotate around the x axis
			rotate(90,[0,-1,0])  // rotate around the y axis  (z before rotation)
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
		if (face=="right") {
			translate([where[0]+size[0]/2,where[1]+right-left,where[2] +up-down])
			rotate(90,[1,0,0])   // rotate around the x axis
			rotate(90,[0,1,0])  // rotate around the y axis  (z before rotation)
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
		if (face=="top") {
			translate([where[0]+right-left,where[1]+up-down,where[2]+size[2]/2 ])
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
		if (face=="bottom") {
			translate([where[0]+right-left,where[1]-up+down,where[2]-size[2]/2 ])
			rotate(180,[1,0,0])
			write(text,center=true,h=h,rotate=rotate,t=t,font=font);
		}
}

module write(word){

	echo (h);
	echo (word);
	echo ("There are " ,len(word) ," letters in this string");
//	echo ("The second letter is ",word[1]);
//	echo (str(word[0],"_"));
rotate(rotate,[0,0,-1]){
	for (r = [0:len(word)]){   // count off each character
		// if the letter is lower case, add an underscore to the end for file lookup
		if ((word[r] == "a" ) || (word[r]== "b")  || (word[r]== "c")
	 	  || (word[r]== "d") || (word[r]== "e") || (word[r]== "f")
	 	  || (word[r]== "g") || (word[r]== "h")  || (word[r]== "i")
       	  	  || (word[r]== "j") || (word[r]== "k") || (word[r]== "l")
       	 	  || (word[r]== "m") || (word[r]== "n") || (word[r]== "o")
       	 	  || (word[r]== "p") || (word[r]== "q") || (word[r]== "r")
	 	  || (word[r]== "s") || (word[r]== "t") || (word[r]== "u")
       	 	  || (word[r]== "v") || (word[r]== "w") || (word[r]== "x")
       	 	  || (word[r]== "y" )|| (word[r]== "z")){
			if (center == true)  {
				translate([0,-h/2,0]){
					scale([.125*h,.125*h,t]){
						translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0])
						linear_extrude(height=1,convexity=10,center=true){
							import(file = font,layer=str(word[r],"_"));
						}
					}
				}
			}else{
				translate([0,0,t/2]){
					scale([.125*h,.125*h,t]){
						translate([r*5.5*space,0,0])
						linear_extrude(height=1,convexity=10,center=true){
							import(file = font,layer=str(word[r],"_"));
						}
					}
				}
			}

		}else{
			if (center == true)  {
				translate([0,-h/2,0]){
					scale([.125*h,.125*h,t]){
						translate([ (-len(word)*5.5*space/2) + (r*5.5*space),0,0])
						linear_extrude(height=1,convexity=10,center=true){
							import(file = font,layer=str(word[r]));
						}
					}
				}
			}else{
				translate([0,0,t/2]){
					scale([.125*h,.125*h,t]){
						translate([r*5.5*space,0,0])
						linear_extrude(height=1,convexity=10,center=true){
							import(file = font,layer=str(word[r]));
						}
					}
				}
			}
		}
	}
}
}

/*writecylinder test
translate([0,0,0])
%cylinder(r=20,h=40,center=true);
color([1,0,0])
writecylinder("rotate=90",[0,0,0],20,40,center=true,down=0,rotate=90);
writecylinder("rotate = 30,east = 90",[0,0,0],20,40,center=true,down=0,rotate=30,east=90);
writecylinder("ccw = true",[0,0,0],20,40,center=true,down=0,face="top",ccw=true);
writecylinder("middle = 8",[0,0,0],20,40,h=3,center=true,down=0,face="top",middle=8);
writecylinder("face = top",[0,0,0],20,40,center=true,down=0,face="top");
writecylinder("east=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",east=90);
writecylinder("west=90",[0,0,0],20,40,h=3,center=true,down=0,face="top",ccw=true,west=90);
writecylinder("face = bottom",[0,0,0],20,40,center=true,down=0,face="bottom");
*/
/*writesphere test
sphere(20);
color([1,0,0])
writesphere("Hello World",[0,0,0],20,t=1,h=6);
*/
/* writecube test
translate([30,30,30])
cube([10,15,30],center=true);
write("hello",center=true,rotate =30);
color([1,0,0])
writecube( "front",[30,30,30],[10,15,30],h=5,rotate=-90);
color([0,1,0])
writecube( "back",[30,30,30],size=[10,15,30],h=5,face="back",rotate=90,t=4);
color([0,0,1])
writecube( "left",[30,30,30],[10,15,30],h=5,face="left",up=5);
color([1,1,0])
writecube( "right",where=[30,30,30],size=[10,15,30],h=5,face="right",rotate=55);
color([1,0,1])
writecube( "top",where=[30,30,30],size=[10,15,30],h=5,face="top");
color([1,1,1])
writecube( "bttm",where=[30,30,30],size=[10,15,30],h=5,face="bottom",rotate=90);
*/

```


[User]
I need a parametric OpenSCAD design for a cable label. It should be able to handle both single and ribbon cables, and I'd like the key dimensions to be configurable.

Here's what I'm thinking:

*   **Cable Diameter:** A parameter to specify the diameter of a single cable. If it's a ribbon cable, this will be the approximate diameter of a single wire in the ribbon.
*   **Number of Cables:** For ribbon cables, this parameter will define how many individual wires are in the ribbon. If it's a single cable, this should be set to 1.
*   **Label Width:** The width of the label itself, where text or other labeling will be placed. This should be adjustable and should not shrink below a minimum calculated size based on the cable diameter.
*   **Label Length:** The length of the label along the cable.
*   **Opening Width:** The width of the gap in the label that allows the cable(s) to be inserted.  This should be slightly smaller than the cable diameter for a snug fit. For ribbon cables, this value will need to be smaller than the diameter of a single cable.
*  **Inner Spacing**: This is the space between the cable cutout and the cable when the label is closed, allowing a little extra room.
*   **Wall Thickness:** The thickness of the label's walls.
*   **Floor Thickness:** The thickness of the base of the label.
*   **Top Thickness:** The thickness of the top portion of the label.

The label should have a "clamshell" design where a top piece fits over a base. The cutouts for cables should be arranged in a line for ribbon cables. There should also be a narrow opening to allow the cable to be inserted into the circular cable cutouts. The final label should be printable without support.

Please generate the OpenSCAD files for this, and don't assume the use of any libraries other than the built-in modules.

[Assistant]
cable_label.scad:
```
// if you want to lable multiple cables approximate this
cable_diameter = 1.2;
// use this for ribbon cables
number_of_cables = 1;
// adjusts to the diameter if to small
label_width = 6;
label_length = 15;
// make this a little bit smaller than your diameter, if you use multiple cables make this smaller than a single cable diameter
opening_width = 1.1;
// creater value -> more space for the cable
inner_spacing = 0.05;
wall_thickness = 1;
floor_thickness = 1;
top_thickness = 0.4;

/* [Hidden] */
layout = "line"; // [1:Line ,pyramind:Pyramid]
radius = cable_diameter / 2;
padded_radius = radius + inner_spacing;
clamp_width = (cable_diameter - opening_width) / 2;
r_cos = radius - clamp_width;
r_sin = sqrt(radius*radius - r_cos * r_cos);
floor_end_to_top_start = (number_of_cables-1)*cable_diameter + radius + r_sin;
height = floor_thickness + floor_end_to_top_start + top_thickness;
top_width = cable_diameter + 2 * wall_thickness;

if(label_width < top_width) {
    label(top_width);
} else {
    label(label_width);
}

module label(working_label_width){
    translate([0, label_length/2, 0]){
        rotate([90,0,0]){
            complete_label(working_label_width);
        }
    }
}

module complete_label(working_label_width){
    difference(){
        main_body(working_label_width);
        cutouts(working_label_width);
    }
}

module main_body(working_label_width){
    a = [working_label_width/2, 0];
    b = [top_width/2, height];
    c = [0, height];
    linear_extrude(label_length){
        polygon([[0,0],a,b,c]);
        mirror([1,0,0]) polygon([[0,0],a,b,c]);
    }
}

module cutouts(working_label_width){
    union(){
        cable_cut_outs(working_label_width);
        opening_cut_out(working_label_width);
    }
}

module cable_cut_outs(){
    if(layout == "line"){
        for (k = [0 : number_of_cables-1]){
            y = floor_thickness + padded_radius + k*cable_diameter;
            cable_cut_out(0,y);
        }
    }
}

module cable_cut_out(x, y){
    translate([x, y, label_length/2]){
        cylinder(h = label_length+1, r = padded_radius, center= true, $fn=200);
    }
}

module opening_cut_out(working_label_width){
    cutout_height = height - floor_thickness + 1;
    c1 = [0, floor_thickness];
    c2 = [opening_width/2, floor_thickness];
    c3 = [opening_width/2, height];
    c4 = [opening_width/2, height+1];
    c4 = [0, height+1];
    translate([0,0,-0.5]){
        linear_extrude(label_length+1){
            polygon([c1,c2,c3,c4]);
            mirror([1,0,0]) polygon([c1,c2,c3,c4]);
        }
    }
}

```


[User]
Okay, I'm looking to design a new effector for a delta 3D printer, specifically a Kossel-style printer, but I only need it to support a single hotend. I've seen some designs that are remixed from a dual extruder effector, and I like the general idea of those, but I want it to be parametric so I can adjust it for different hotends and fan setups.

Here's the basic functionality I'm envisioning:

*   **Single Hotend Mount:** It needs a central hole and a groove mounting system for a single hotend. The hotend is secured using the standard groove mount.
*   **Effector Plate:** The main body of the effector should have mounting points for the push rods, and those need to be adjustable. It should be designed with a ball-joint system.
*   **Fan Mount:** I want a single fan mount attached to the effector to cool the hotend. This needs to be adjustable for different sized fans and mounting configurations - like, I might want to add different styles of fan.
*   **Parametric Design:** The whole thing should be parametric, so I can tweak the dimensions for things like hotend diameter, groove radius, fan size, rod separation, and effector offset, etc. I'm currently using the 15x15 extrusion for my frame, but I'd like it to be easily modifiable to use 20x20 in the future.
*   **Threaded Inserts:** I'm looking to use threaded inserts (like push-fit or heat-set) for the hotend mount, so that should be configurable. I'd also like it to have countersunk screws for the rods if possible.
*  **Additional Supports:** I would like to add optional supports between the rods and the effector. I would like to keep the design clean and minimal.

I’ve got some measurements I'm currently using:

*   **Separation:** Distance between ball joint mounting faces = 40mm
*   **Offset:** The same as DELTA\_EFFECTOR\_OFFSET in Marlin firmware = 20mm
*   **Push Fit Height:** How far the brass thread is inserted into the printed plastic = 3.8mm.
*  **Push Fit Radius:** Radius of hole for a M10x1.0 tap = 4.7mm
*   **Effector Height:** Thickness of the effector plate = 10mm
*  **Hotend Rotation:**  The hotend will be mounted at 25 degree relative to the effector.
*   **Hotend Mounting Radius:**  Hotend mounting screws are on a radius of 12.5mm (standard is 25mm).
*   **Nozzle Distance:** Distance between nozzles on the old dual extruder = 19mm.
*   **Hotend Radius:** Hole for the hotend, 8mm currently (J-Head is 16mm).
*   **Groove Radius:** Radius of hot end in groove region = 6mm
*   **Groove Height:** Thickness of the hot end's groove region = 4.6mm
*   **Cone Support:** Set to be an optional feature.

I would like to be able to use the m3 library and m4 library, if that is at all possible. I’ve also got all of those standard measurements for things like the nut/screw sizes etc. that I'm including in a configuration file. This also covers the motor parameters such as offset and length.

I'd like the output to be a few separate SCAD files - one for the effector itself, another for the fan mount, and another for the configuration parameters, similar to what I'm seeing in other OpenSCAD projects.

Can you generate those files?

[Assistant]
hotend_fan_single_30.scad:
```
include <configuration.scad>;

barrel_radius = hotend_radius - 2;
barrel_height = 30;
fan_offset = 18;
include_fan_bracket = false;

module hotend_fan() {
    difference() {
    union() {
        if(include_fan_bracket) {
            translate([0, 2 - fan_offset, 15])
                cube([35, 35, 30], center=true);
        }
/*
        if(!include_fan_bracket) {
            translate([0, 6 - fan_offset,groove_height / 2])
                cube([26, 6, groove_height], center=true);
        }
*/
		//translate([0, 2 - fan_offset, 0])
        //  cylinder(r=17, h=30, $fn=6);
        translate([0, 0, groove_height/2]) {
            cube([26, 25, groove_height], center=true);
        }

		translate([0,12.5,0])
            hull() {
                translate([10,0,0])
                    cylinder(r=3, h=groove_height, $fn=72);
                translate([-10,0,0])
                    cylinder(r=3, h=groove_height, $fn=72);
            }
         translate([0,-12.5,0])
            hull() {
                translate([10,0,0])
                    cylinder(r=3, h=groove_height, $fn=72);
                translate([-10,0,0])
                    cylinder(r=3, h=groove_height, $fn=72);
            }
    }

    // Opposite side cutaway (outgoing airflow).
    translate([0, 40, groove_height + 0.01])
        rotate([0, 0, 30])
            cylinder(r=40, h=200, $fn=6);

    // Keep printed plastic away from the hotend.
    translate([0, -15,15])
		rotate([-75,0,0])
            cylinder(r=8, h=20);

	//notch for heater blocks
	translate([0,-5,30])
		cube([40,13,6], center=true);

	//remove point between barrels
	translate([0,0,10])
		cube([20,53,6], center=true);

	//remove point between barrels
	translate([0,-5,25])
		cube([nozzle_distance,10,6], center=true);

	translate([0,0,0]){
        // Groove mount.
        cylinder(r=groove_radius+1, h=200, center=true, $fn=96);
        // J-Head barrel.
        translate([0, 0, groove_height + 0.02])
          cylinder(r=barrel_radius + 1, h=100, $fn=24);
            // Groove mount insert slot.
            rotate([0,0,-90])
                translate([0, 10, 0])
                    cube([2*groove_radius+2, 20, 20], center=true);
    }
/*
	translate([-nozzle_distance / 2,0,0]) {
        // Groove mount.
        cylinder(r=groove_radius, h=200, center=true, $fn=24);
        // J-Head barrel.
        translate([0, 0, groove_height + 0.02])
          cylinder(r=barrel_radius + 1, h=100, $fn=24);

        // Groove mount insert slot.
        rotate([0,0,45])
            translate([0, 10, 0])
                cube([2*groove_radius, 20, 20], center=true);
	}
*/
	if(include_fan_bracket)	{
        // Fan mounting surface and screws.
        translate([0, -50 - fan_offset, 0])
            cube([100, 100, 100], center=true);
        for (x = [-12, 12]) {
            for (z = [-12, 12]) {
                translate([x, -fan_offset, z+15])
                    rotate([90, 0, 0]) #
                        cylinder(r=m3_radius, h=16, center=true, $fn=12);
            }
        }
        // Vertical inner space.
        intersection() {
            cube([22, 100, 100], center=true);
            translate([0, -12, groove_height])
                cylinder(r=16, h=10, $fn=6);
        }
        // Air funnel.
        difference() {
            translate([0, -1 - fan_offset, 15])
                rotate([-90, 0, 0])
                    cylinder(r1=15, r2=10, h=12, $fn=36);
        }
	}

        // viti e bulloni
		union(){
            rotate([0, 0, -150]) translate([0, 12.5, 5]) {
                cylinder(r=m3_nut_radius, h=4, center=true, $fn=6);
                cylinder(r=m3_radius, h=12, center=true, $fn=96);
            }

            rotate([0, 0, -180]) translate([0, 12.5, 5]) {
               cylinder(r=m3_radius+1, h=12, center=true, $fn=96);
            }

            rotate([0, 0, -210]) translate([0, 12.5, 5]) {
                cylinder(r=m3_nut_radius, h=4, center=true, $fn=6);
                cylinder(r=m3_radius, h=12, center=true, $fn=96);
            }

            rotate([0, 0, -30]) translate([0, 12.5, 5]) {
                cylinder(r=m3_nut_radius, h=4, center=true, $fn=6);
                cylinder(r=m3_radius, h=12, center=true, $fn=96);
            }

            rotate([0, 0, 30]) translate([0, 12.5, 5]) {
                cylinder(r=m3_nut_radius, h=4, center=true, $fn=6);
                cylinder(r=m3_radius, h=12, center=true, $fn=96);
            }

            translate([0, 12.5, 5]) {
                cylinder(r=m3_radius+1, h=12, center=true, $fn=96);
            }
        }

  }

  // Supporto ventola destra
  translate([-5,15,0]) cube([10,10,4.5]);
  translate([-5,25,0]) rotate([30,0,0]) difference() {
      cube([10,10,5]);
      translate([5,7.5,2.5]) rotate([0,90,0]) cylinder(r=1.6, h=12, center=true, $fn=96);
  }

  // Supporto ventola sinistra
  translate([-5,-25,0]) cube([10,10,4.5]);
  translate([-5,-22.5,4.3]) rotate([150,0,0]) difference() {
      cube([10,10,5]);
      translate([5,7.5,2.5]) rotate([0,90,0]) cylinder(r=1.6, h=12, center=true, $fn=96);
  }
}

hotend_fan();
//hotend();

module hotend() {
    // Hotend barrel.
    translate([0, 0, groove_height]) %
      cylinder(r=barrel_radius, h=barrel_height);
    /*
    translate([-nozzle_distance / 2, 0, groove_height]) %
      cylinder(r=barrel_radius, h=barrel_height);
    */
     translate([0, 0, groove_height + barrel_height -1]) %
    cube([20,20,10], center=true);
    //translate([-nozzle_distance / 2, 0, groove_height + barrel_height -1]) %
    //cube([20,20,10], center=true);

    if(include_fan_bracket) {
        // 30mm fan.
        translate([0, -5 - fan_offset, 15]) % difference() {
          cube([30, 10, 30], center=true);
          rotate([90, 0, 0,]) cylinder(r=14, h=20, center=true);
        }
    }
}
```
effector_single.scad:
```
include <configuration.scad>;

separation = 40;  // Distance between ball joint mounting faces.
offset = 20;  // Same as DELTA_EFFECTOR_OFFSET in Marlin.
push_fit_height = 3.8;  // Length of brass threaded into printed plastic.
push_fit_radius = 4.7; //M10 x 1.0 thread for manual tap
push_fit_manual_tap = true;
height = 10;
cone_r1 = 3;
cone_r2 = 12;
cone_supports = false;
hotend_rotation = 25;

module effector() {
  difference() {
    union() {

      cylinder(r=offset-2, h=height, center=true, $fn=180);
      for (a = [60:120:359]) rotate([0, 0, a]) {
		rotate([0, 0, 30])
			translate([offset-2, 0, 0])
	  			cube([10, 13, height], center=true);
		for (s = [-1, 1]) scale([s, 1, 1]) {
	  		translate([0, offset, 0]) {
				if(cone_supports) {

					translate([separation / 2 - 2.5,0,-height / 2 + 1.7])
						rotate([0,0,90])
		   					cube([1,5,height / 2 - 1.6], center=true);
					translate([separation / 2 - 5.4,3.425,-height / 2 + 2.5])
						rotate([0,0,160])
				   			cube([1,5,height / 2], center=true);
				}	// translate

				difference() {
				    intersection() {
						cube([separation, 40, height], center=true);
						translate([0, -4, 0]) rotate([0, 90, 0])
							cylinder(r=10, h=separation, center=true, $fn=96);

						translate([separation/2-7, 0, 0]) rotate([0, 90, 0])
							cylinder(r1=cone_r2, r2=cone_r1, h=14, center=true, $fn=96);
		    		} // intersection

			    	rotate([0, 90, 0])
						cylinder(r=m3_radius, h=separation+1, center=true, $fn=96);
					rotate([90, 90, 90])
			   	   		cylinder(r=m3_nut_radius, h=separation-23, center=true, $fn=6);
				} // difference
			} // translate
		} // for
      } // for
    } // union
	rotate([0,0,hotend_rotation])
        translate([0, 0, -push_fit_height+(height/2)]) {
            translate([0,0,0]) {
                push_fit_thread();
            } // translate
        } // translate

    for (a = [60 + hotend_rotation:30:149 + hotend_rotation]) rotate([0, 0, a]) {
      translate([0, mount_radius, 0])
		cylinder(r=m3_wide_radius, h=2*height, center=true, $fn=24);
    } // for

	for (a = [240 + hotend_rotation:30:329 + hotend_rotation]) rotate([0, 0, a]) {
      translate([0, mount_radius, 0])
		cylinder(r=m3_wide_radius, h=2*height, center=true, $fn=24);
    } // for
  } // difference
} // module

module push_fit_thread() {
	cylinder(r=hotend_radius, h=height, $fn=144);
	union() {
		if(push_fit_manual_tap)
			cylinder(r=push_fit_radius, h=30, $fn=144, center=true);
		else
			translate([0, 0, -6]) # import("m5_internal.stl");
	}
}

translate([0, 0, height/2]) effector();

```
configuration.scad:
```
// Increase this if your slicer or printer make holes too tight.
extra_radius = 0.1;

// OD = outside diameter, corner to corner.
m3_nut_od = 6.1;
m3_nut_radius = m3_nut_od/2 + 0.2 + extra_radius;
m3_washer_radius = 3.5 + extra_radius;

// Major diameter of metric 3mm thread.
m3_major = 2.85;
m3_radius = m3_major/2 + extra_radius;
m3_wide_radius = m3_major/2 + extra_radius + 0.2;

// NEMA17 stepper motors.
motor_shaft_diameter = 5;
motor_shaft_radius = motor_shaft_diameter/2 + extra_radius;

// Frame brackets. M3x8mm screws work best with 3.6 mm brackets.
thickness = 3.6;

// OpenBeam or Misumi. Currently only 15x15 mm, but there is a plan
// to make models more parametric and allow 20x20 mm in the future.
extrusion = 15;

// Placement for the NEMA17 stepper motors.
motor_offset = 44;
motor_length = 47;

//Hot End Parameters
nozzle_distance = 19; //Approximately 3/4"
mount_radius = 12.5;  //Hotend mounting screws, standard would be 25mm.
hotend_radius = 8;  //Hole for the hotend (J-Head diameter is 16mm).
groove_radius = 6;  //Radius of hot end in groove region
groove_height = 4.6;  //Thickness of hot end groove region

```


[User]
I'm looking to create a nozzle cleaning tool for my 3D printer, and I'd like it to be parametric so I can easily adjust the size.  Basically, I want a flat, grid-like surface with a handle. The grid part will have a pattern of squares, some with holes and some without. Think of it like a checkerboard but more rectangular.

Here are the key features I'm imagining:

**Grid:**

*   **Grid Size:**  The size of each individual square in the grid.
*   **Grid Hole Size:** The size of the hole within the gridded squares. Squares without holes are also needed for the same size
*   **Grid Width:** The number of squares across the width of the grid.
*   **Gridded Length:** The number of gridded squares along the length of the grid.
*   **Ungrid Length:** The number of squares with no holes along the length of the grid after the gridded squares.
*   **Grid Thickness:** The overall thickness of the grid.

**Handle:**

*   **Handle Height:** The length of the handle.
*   **Handle Diameter:** The diameter of the handle, which is a cylinder.

**Additional Details:**
*   The grid should be centered at the origin, and the handle needs to be attached to one end of it, offset from the edge by a small distance.
*   I'd like a fillet where the handle joins the grid for smoother printing and a more finished look. This fillet should extend slightly into the grid itself.  The fillet size needs to be variable and will be based upon the smallest of either the edge of the grid square or the handle radius.

I'd like the generated files to be organized with the following parametric settings at the beginning of the primary module:

```openscad
gridSize = 5;
gridHole = 3;
gridWidth = 12;
griddedLength = 8;
ungriddedLength = 4;
gridThickness = 0.5;

handleHeight = 45;
handleDiameter = 4;
```

Could you create a set of OpenSCAD files for this design? Make sure to use a library like BOSL2 for the fillet to keep the code concise. Please be sure to add comments to clarify what each section of the code is doing.

[Assistant]
NozzleCleaner.scad:
```

gridSize = 5;
gridHole = 3;
gridWidth = 12;
griddedLength = 8;
ungriddedLength = 4;
gridThickness = 0.5;

handleHeight = 45;
handleDiameter = 4;

module grid(bGrid) {
    difference() {
        cube([gridSize,gridSize,gridThickness],center=true);
        if (bGrid==true) {
            cube([gridHole,gridHole,gridThickness+0.1],center=true);
        }
    }
}
translate([-gridHole/2,-gridHole/2,0])
for (i=[1:gridWidth]) {
    for (j=[1:griddedLength]) {
        translate([(gridSize)*i-(gridSize-gridHole)/2*i,(gridSize)*j-(gridSize-gridHole)/2*j,0])
        grid(true);
    }
    if (ungriddedLength > 0) {
        for (j=[griddedLength+1:griddedLength+ungriddedLength]) {
            translate([(gridSize)*i-(gridSize-gridHole)/2*i,(gridSize)*j-(gridSize-gridHole)/2*j,0])
            grid(false);
        }
    }
}

$fn=60;
gridEdge = (gridSize-gridHole)/2;
echo(gridEdge);
modelWidth = (gridSize-(gridSize-gridHole)/2)*(gridWidth-1)+gridSize;
translate([modelWidth/2,-handleHeight/2,handleDiameter/2-handleDiameter/8-gridThickness/2])
rotate([90,90,0])
difference() {
    cylinder(d=handleDiameter, h=handleHeight, center=true);
    translate([7*handleDiameter/8,0,0])
    cube([handleDiameter,handleDiameter,handleHeight+1],center=true);
    translate([-7*handleDiameter/8,0,0])
    cube([handleDiameter,handleDiameter,handleHeight+1],center=true);
}

handleRadius = handleDiameter/2;
filletLength = 2*sqrt(pow(handleRadius,2)-pow(5*handleRadius/8,2));
filletSize = gridEdge>handleRadius?handleRadius:gridEdge;
translate([modelWidth/2,filletSize/2,filletSize/2+gridThickness/2])
difference() {
    cube([filletLength,filletSize,filletSize],center=true);
    translate([0,filletSize/2,filletSize/2])
    rotate([0,90,0])
    cylinder(h=filletLength+1,d=filletSize*2,center=true);
}
```


[User]
Hey, I need an OpenSCAD design for a clip that will hold down the heated bed of my 3D printer. The bed thickness varies, so I need it to be parametric. It's basically a circular clip with a gap that grabs the bed and a label on the top.

Here's what I need to be adjustable:

*   **`bed_height`**: The height of the printer's heated bed in millimeters (mm).
*   **`diameter`**: The overall diameter of the circular part of the clip (mm).
*   **`rift`**: The depth of the gap or "rift" that the bed slides into (mm).
*   **`clampheight`**: The thickness of the clip's body (mm).
*   **`clawheight`**: The height of the inner "claw" that actually grips the bed (mm).
*   **`clawwidth`**: The width of the gripping claw (mm).

Also, I want to include a label on top, specifically the printer model "M2", but this label needs to be adjustable as well:

*   **`text`**: The text of the label. Should default to "M2".
*  **`font`**:  The font of the text. Default to "Liberation Sans".
*   **`letter_size`**: The size of the text.
*   **`letter_height`**: The extrusion height of the letters.

I think that should cover everything. Can you generate the OpenSCAD code for this, or maybe a few files if it makes sense to organize it that way? I'm not using any external libraries like MCAD or BOSL. Thanks!

[Assistant]
BedClip.scad:
```
//The height of the bed (mm)
bed_height=7.6;

//Diameter of the circle (mm)
diameter= 25; // [10:50]

//The depth of the rift
rift=0.6; // [0.1:0.1:0.9]

//The thickness of the clamp (mm)
clampheight=2; // [1:0.1:5]

//The thickness of the claw (mm)
clawheight=0.5; // [0:0.1:1.5]

//The width of the claw (mm)
clawwidth= 2; // [1:0.1:5]

/* [Advanced] */

text="M2";
font = "Liberation Sans";
letter_size = 5;
letter_height = 0.5; //mm

height= bed_height+clampheight*2;
radius = diameter/2;

module letter(l) {
  // Use linear_extrude() to make the letters 3D objects as they
  // are only 2D shapes when only using text()
  linear_extrude(height = letter_height+height) {
    text(l, size = letter_size, font = font, halign = "center", valign = "center", $fn = 16);
  }
}

difference()
{
    union()
    {
 color("gray") cylinder(height,radius,radius,false );
 color("red")    translate([0, -radius/2, 0]) rotate([0, 0, 180]) letter(text);
    }

translate([-radius,0,0])
cube([diameter,radius,height]);

union()
{
translate([-radius,-radius*rift,(height-bed_height)/2])
cube([diameter, radius*rift-clawwidth,bed_height]);

translate([-radius,-radius*rift,(height-bed_height+clawheight*2)/2])
cube([diameter, radius*rift,bed_height-clawheight*2]);
}

}

```


[User]
Hey, I'm looking to get some customizable stacking boxes designed in OpenSCAD. I've got a rough idea of what I want, but I'd love it if you could handle the specifics. I'm aiming for a modular system where the boxes stack securely, but can also function as trays if I don't want to stack them.

Here’s the basic concept:

*   **Box Dimensions:** I'd like to be able to set the internal width, height, and depth of each box as parameters. Let’s call these `cWidth`, `cHeight`, and `cDepth`, respectively.
*   **Wall Thickness:** The walls should have a consistent thickness that I can adjust via a parameter; let’s call it `wThick`.
*   **Front Opening:** I'd like a front opening of a certain size on the front of the box (basically just a shorter wall on the front) and I'd like that opening height to be parameterized. I'll call this parameter `frontGap`.
*   **Stacking Mechanism:** The stacking mechanism should be based on a lip and rail design. The "lip" part should be around the top edges of the boxes, and "rails" should sit on top of the box and extend up slightly. I want the rails to have a floor on them that are about the same thickness as the walls. There should be a bit of "wiggle room" built in so they aren't too snug - I'll call this parameter `lipOffset`. I will want a parameter for the rail's vertical dimension, that I'll call `railHeight`. The height of the rail part should be some multiple of the box height.
*   **Parameters:** I want all these dimensions and factors to be set via parameters at the beginning of the script.

I'd like to have the following output:
*   A single module that draws all parts at the origin, and uses the parameters to construct the box geometry
*   A module for just the "lip/rail" part
*   A module for just the "container" part, and calls the container module within the main module

Could you provide me with an OpenSCAD file (or files if you think it makes sense) that accomplishes this, using these parameters? I'm not particular about library usage as long as all features are implemented.

[Assistant]
CAJ_stackbox_002.scad:
```
// written by Intog
// intogria@gmail.com

////// CUSTOMIZATIONS /////

// (internal) Container Width
cWidth = 40;

// (internal) Container Height
cHeight = 20;

// (internal Container Depth
cDepth = 40;

// Wall Thickness
wThick = 2.25;

// Front Opening Size
frontGap = 1.4;

// Amout of Wiggle Room ( set to 2 for a tight fit)
lipOffset = 2.25;

railHeight = .25;

// Model Size Info ///////////////////////////////

echo("(Z) height:", cHeight*.2+cHeight);
echo("(Y) Width", cWidth+lipAdj*2-wThick*2);
echo("(X) Depth", cDepth+lipAdj-wThick);

// maths ////////////////////////////////////////

lipAdj = lipOffset*wThick;

railHeightCalc = cHeight*railHeight;

// renders ////////////////////////////////////////

stackBox();

// uncomment below to view stacked...
//translate([0,0,cHeight+wThick]) stackBox();

// modules ////////////////////////////////////////

module container(){

 // floor
    translate ([0,0,wThick/2])
   cube  ([cDepth,cWidth,wThick], center = true);

// left wall
    translate([ -cDepth/2,-cWidth/2, 0 ])
       cube  ([ cDepth, wThick, cHeight ]);

// right wall
    translate([ -cDepth/2, cWidth/2-wThick, 0 ])
       cube  ([ cDepth, wThick, cHeight ]);

// back wall
    translate([-cDepth/2, -cWidth/2, 0 ])
       cube  ([ wThick,cWidth, cHeight ]);

// lip
    translate([cDepth/2-wThick, -cWidth/2, 0 ])
       cube  ([ wThick, cWidth, cHeight/frontGap]);
}

module railConstruct(){

//left rail
    translate([-cDepth/2-lipAdj+wThick, -cWidth/2-lipAdj+wThick, cHeight])
    railSide();

//right rail
     rotate([0,0,180])
    translate([-cDepth/2,-cWidth/2-lipAdj+wThick,cHeight])
    railSide();

//backrail

    translate([ -cDepth/2-lipAdj+wThick, -cWidth/2-lipAdj+wThick, cHeight])
    railBack();

}

module railSide(){

//floor
    cube  ([ cDepth+lipAdj-wThick, lipAdj, wThick ]);

//side
  cube  ([ cDepth+lipAdj-wThick,wThick, railHeightCalc ]);

}

module railBack(){

//floor
    cube  ([ lipAdj, cWidth+lipAdj, wThick]);

//side
    cube  ([ wThick, cWidth+lipAdj*2-wThick*2, railHeightCalc]);

}

module stackBox(){

railConstruct();

container();

}
```


[User]
I'm looking to design a small tool that I can keep on my keychain to adjust the mixture screw on my Tomos A35 moped. I've got a basic design in mind, but I need some help making it parametric so I can tweak it for different screw sizes, and make sure it prints well.

Essentially, the tool will be a small cylinder with a driver cutout on one end, and a hole for a keychain on the other. The cylinder will taper slightly, being wider at the base than the top where the driver is. The driver itself needs to be a kind of flattened rectangular shape with rounded edges. The edges should be created using a fillet, and the top of the driver should be tapered in slightly too.

Here are the basic parameters that I'm envisioning:

*   `Ro`: Outer radius of the main cylinder body.
*   `Ri`: Inner radius of the main cylinder body, creating a hollow cylinder.
*   `Rb`: The bottom outer radius - the cylinder tapers slightly and this is the outer radius at the base.
*   `H`: Total height of the cylinder.
*   `depth`: Depth of the driver cutout on top.
*   `tapered`: Height of the tapered part of the driver.
*   `decrease`: The amount by which the top of the driver decreases in size.
*   `fillet`: Radius of the fillet at the bottom of the driver.
*   `driverBaseWidth`: Width of the base of the driver cutout.
*   `driverBaseLength`: Length of the base of the driver cutout.
*  `keyChainHeight`: The distance from the top of the part to the top of the keychain hole.
*   `keyChainRadius`: Radius of the keychain hole.

I'd like the design to use these parameters so that it can be adjusted easily. I'm thinking the design should use `minkowski` and `hull` to create smooth edges. The keychain hole should be a simple cylinder, and I'd like the main body to be a `difference` between two cylinders.

I'm thinking OpenSCAD should handle this without requiring any external libraries. Could you create a parametric OpenSCAD file that accomplishes this?

[Assistant]
keyChainIdleScrew.scad:
```
//  The amount of edges in every circle
$fn = 50;

//  The outer radius of the cylinder
Ro = 5.5;

//  The inner radius of the cylinder
Ri = 5;

//  The bottom outer radius, the whole thing will be scaled to this
Rb = 2;

//  The height of the cylinder
H = 30;

//  The depth of the cut out for the driver
depth = 1;

//  The height of the tapering part of the top of the driver
tapered = 0.66;

//  The decrease in dimension of the top part
decrease = 0.3;

//  The radius of the fillet at the bottom of the driver
fillet = 0.34;

//  The width of the base of the driver, must be smaller than 2 * Ri
driverBaseWidth = 1;

//  The length of the base of the driver, must be smaller than 2 * Ri
driverBaseLength = 8;

//  The height of the keychain hole
keyChainHeight = 3;

//  The radius of the keychain hole
keyChainRadius = 1.5;

module keyChainIdleScrewDriver(){
    delta = 0.0001;
    union(){
        difference(){
            cylinder(r1 = Rb, r2 = Ro, h = H);
            translate([0,0,H - depth]){
                cylinder(r1 = (Ro - Rb) / H * (H - depth) + Rb - Ro + Ri, r2 = Ri, h = depth + 0.1);
            }
            translate([0, -Ro - 0.1, keyChainHeight]){
                rotate([-90,0,0]){
                    cylinder(r = keyChainRadius, h = 2 * Ro + 0.2);
                }
            }
        }
        translate([0,0,H - depth]){
            union(){
                difference(){
                    cube([driverBaseWidth + 2 * fillet, driverBaseLength + 2 * fillet, 2 * fillet], center = true);
                    translate([0,0, 2 * fillet]){
                        minkowski(){
                            difference(){
                                cube([driverBaseWidth + 4 * fillet, driverBaseLength + 4 * fillet, 2 * fillet], center = true);
                                cube([driverBaseWidth + 2 * fillet, driverBaseLength + 2 * fillet, 2 * fillet], center = true);
                            }
                            sphere(r = fillet);
                        }
                    }
                }
                translate([-driverBaseWidth / 2, -driverBaseLength / 2, 0]){
                        cube([driverBaseWidth, driverBaseLength, depth - tapered]);
                }
                translate([-driverBaseWidth / 2, -driverBaseLength / 2, depth - tapered]){
                    hull(){
                        cube([driverBaseWidth, driverBaseLength, delta]);
                        translate([decrease, decrease, tapered]){
                            cube([driverBaseWidth - 2 * decrease, driverBaseLength - 2 * decrease, delta]);
                        }
                    }
                }
            }
        }
    }
}

keyChainIdleScrewDriver();

```


[User]
Hi, I'm looking to get a design made for a cosmetic cover for the locking wheel nuts on my 2003-2004 L322 Range Rover. It should snap on and make the locking wheel nut look more like the regular ones.

The design I have in mind has a cylindrical section on the bottom that fits over the existing locking nut, and then a section on top that's shaped like a regular nut to mimic the look of the other lug nuts.

I have a few specific dimensions that I've found work well, but I'd like the whole thing to be parametric, so I can tweak it if needed. The internal diameter of the cylindrical section needs to be adjustable for different printers - I'm currently using 24.3mm, but a way to easily adjust this would be key. The design should account for the flange at the bottom of the cylindrical section; this should be adjustable too.

The 'nut' section at the top needs to be a hexagon shape, with a distance between the flat sides to be adjustable as well. The height of both the cylindrical and nut sections should also be adjustable. There is a centre locating pole that is a cylinder; this should also have an adjustable diameter.

For ease of use, the OpenSCAD design should not require any external libraries and the final code should be self-contained and modular for each functional block, such as the 'nut_capture' and cylinder components.

Let me know if you need more information or if there is anything unclear.

[Assistant]
cover.scad:
```
// The cover has a cylindrical section ("cover") and an imitation nut section ("nut")

/* [Global] */

// Internal Diameter
cover_id = 24.3;        // [24:0.1:25]
// This controls the tightness of the fit. Adjust in increments of 0.1 until you get the right fit. Lower numbers will result in a tighter fit.

/* [Hidden] */

nut_flange_od = 21.8;   // distance between flats of the nut part
nut_vertex_od = 25.2;   // distance between opposite vertices of the nut part
nut_h = 5.4;            // height of the nut section
cover_od = 26;          // outside diameter of the cover section
cover_t = 1;            // thickness of the cover section
flange_t = 0.4;         // thickness of the flange at the bottom of the cover section

cover_id_flange = cover_id-(flange_t*2);    // internal diameter of the cover section where the flange is
cover_h = 6.8;          // height of the cover section

centre_od = 11.5;         // width of centre locating pole

// A high resolution cylinder
module fine_cylinder(dia, length)
{
	cylinder(length, dia/2, dia/2, $fs = 0.5, $fa = 0.5);
}

// A six-sided cylinder that cun be subtracted from another shape to create something
// you can trap a hexagonal nut in
//
// dia is the distance from nut flat to nut flat, rather than the longer
// vertex to vertex distance. It's the distance you would naturally try to measure first,
// and the size of the socket or spanner you would use to tighten it.
module nut_capture(dia, thickness)
{
	// Convert the flat-to-flat distance to the radius of the circle that will encompass it
	// The nut can be drawn as 12 right angle triangles, each with a 30 degree angle at the
	// centre of the nut. The adjacent size is half the flat-to-flat distance, and the hypotenuse
	// is the radius that will enclose the nut.
	rad = (dia/2)/cos(30);
	cylinder(h=thickness,r=rad, $fn=6);
}

rotate([180,0,0])
translate([0,0,-nut_h-cover_h])
union()
{
difference()
{
    union()
    {
        nut_capture(nut_flange_od, nut_h);
        translate([0,0,nut_h])
            fine_cylinder(nut_vertex_od, cover_t);
    }
    translate([0,0,cover_t])
        nut_capture(nut_flange_od-cover_t*2, nut_h*2);
}

translate([0,0,nut_h]) union()
{
    difference()
    {
        fine_cylinder(cover_od, cover_h);
        translate([0,0,cover_h/-2])
            fine_cylinder(cover_id, (cover_h*1.5)-flange_t);
        translate([0,0,cover_h-flange_t-1])
            color("red")
            fine_cylinder(cover_id_flange, cover_h);
    }
}

opp=(nut_vertex_od/2)*sin(30);
adj=nut_flange_od/2;
fine_cylinder(centre_od,cover_h+nut_h);
for(i = [0:60:300])
{
    translate([0,0,-0.001])
    rotate([0,0,i])
    polyhedron(points=[[0,0,(cover_h*0.73)+nut_h],[opp,adj,0],[-opp,adj,0],[0,0,0]],
            faces=[[0,1,2],[0,1,3],[0,2,3],[1,2,3]]);
}
}
```


[User]
Hey, I'm looking to create a tool holder that mounts on the side of my Ultimaker 2 printer, similar to what I've seen people make. The basic idea is a rectangular box with compartments for holding small tools, like nozzles.

I'd like the design to be parametric so I can adjust the size and compartment configuration to suit different tools later on. Here's what I'm thinking for the initial design and the parameters I need:

*   **Overall Box Dimensions:**
    *   Length (`l`): The length of the box. I'd like to be able to set this.
    *   Width (`w`): The width of the box. I'd also like to control this.
    *   Height (`h`):  The overall height of the box. This should be adjustable as well.

*   **Wall Thickness:**
    *   Outer wall thickness (`owall`): The thickness of the outer walls of the box.
    *   Inner wall thickness (`iwall`): The thickness of the walls that form the compartments.

*   **Compartment Configuration:**
    *   Number of compartments in the x-direction (`ncx`): How many compartments should be along the length of the box.
    *   Number of compartments in the y-direction (`ncy`): How many compartments should be along the width of the box. I might want to set this to 0.

*   **Mounting:**
    *   I'd like the box to have a lip along the top edge on one side that allows it to hang over the printer's side panel.  This lip should extend along the whole length of the box. There should be a small notch to further secure it against the printer edge.
    * I'll also need a cutout to avoid the screw on the side of the printer.

*   **Aesthetics:**
    *   I want a slight radius on the outer edges of the box, using a parameter `rounding` to control how rounded the edges are.
    *   There also needs to be a small delta value for spacing between some objects.

*   **Software:**
    I'd like the design to be in OpenSCAD.

*   **Libraries:**
    I don't anticipate the need for external libraries at this time.

I think that covers everything, let me know if you have questions.

[Assistant]
u2_tool_holder.scad:
```
$fn = 100;

// Length of the tool box.
l = 130;

// Width of the tool box (mm)
w = 35;

// Height of the tool box (mm)
h = 20;

// Outer wall thickness
owall = 3;

// Inner wall thickness
iwall = 1.5;

// Number of compartments in x direction
ncx = 6;

// Number of compartments in y direction
ncy = 0;

// Outer edge radius.
rounding = 2;

delta = 0.1;

module box() {
    difference() {
        hull() {
            translate([rounding, rounding, 0])
                cylinder(h=h, r=rounding);
            translate([l-rounding, rounding, 0])
                cylinder(h=h, r=rounding);
            translate([l-2*rounding, w-2*rounding, 0])
                cube([2*rounding, 2*rounding, h]);
            translate([0, w-2*rounding, 0])
                cube([2*rounding, 2*rounding, h]);
        }
        translate([owall, owall, owall])
            cube([l-2*owall, w-2*owall, h]);
    }
    translate([0, w, h-4]) cube([l, 10, 4]);
    translate([0, w+6.5, h-4-3.5]) cube([l, 3.5, 3.5]);
    for (i = [1 : ncx-1])
        translate([l*i/ncx-iwall/2, delta, 0])
            cube([iwall, w-2*delta, h]);
    for (i = [1 : ncy-1])
        translate([delta, w*i/ncy-iwall/2, 0])
            cube([l-2*delta, iwall, h]);
}

difference() {
    box();
    // There's a screw in the way on the ultimaker. Make space for it.
    translate([l/2-2.5,w-2,h-4-6-15]) cube([6,2+delta,15]);
}

```


[User]
Hi, I'm looking to create a customizable coupling for a vacuum cleaner filter, specifically a Dirt Devil F2. I've got a basic design in mind, but I need it to be parametric so I can adjust it to fit different needs.

Essentially, the coupling consists of a cylindrical bush with a flange. The bush is meant to fit into the filter, and the flange allows for mounting. I'd like to control the bush's diameter, height, and shell thickness, as well as the flange's diameter and thickness. Additionally, I want to include three rectangular "knockout" sections around the bush to allow for airflow. These sections should also be parametric in their size and position.

I want to be able to control these parameters:

*   **`bushshell`**: The thickness of the bush cylinder wall.
*   **`bushheight`**: The height of the cylindrical bush.
*   **`bushdiam`**: The outer diameter of the bush cylinder.
*   **`ringdiam`**: The outer diameter of the flange.
*   **`holediam`**: The inner diameter of the flange hole.
*   **`ringthk`**: The thickness of the flange.
*   **`primwd`**: The width of the primary knockout rectangle.
*   **`primht`**: The height of the primary knockout rectangle.
*   **`secwd`**: The width of the secondary knockout rectangle.
*   **`secht`**: The height of the secondary knockout rectangle.

I'm also looking for a way to easily make a simple retaining ring using this same script. I can do this by setting the knockout parameters to zero, reducing the bush height, and adjusting the diameter accordingly. I want to be sure the code can be used that way, too.

Can you provide me with an OpenSCAD file that defines this parametric coupling and retaining ring? I'd like to be able to change all of those parameters easily and re-render the model. I don't need any special libraries, I think the standard functions will do.

[Assistant]
FilterAdap.scad:
```
$fn = 60;
bushshell = 2;
bushheight = 25;
bushdiam = 47.5 ;
ringdiam = 65;
holediam = 47.5;
ringthk = 2 ;
primwd = 13 ;
primht = 4 ;
secwd = 24 ;
secht = 6;
module mainpart(bushdiam,bushshell,bushheight,ringthk,ringdiam,holediam) {
rotate_extrude(convexity = 10) translate([bushdiam/2,0,0]) square([bushshell,bushheight],0) ;
difference () {
    cylinder(ringthk,ringdiam/2,ringdiam/2);
    translate([0,0,-.5])
    cylinder(ringthk+1,holediam/2,holediam/2);}
}
module knockout(primwd,bushheight,primht,secwd,secht) {
    translate([0,-primwd/2,bushheight-primht])
        cube (size = [bushdiam/2+primwd,primwd,primht],center = false);
    translate([0,-secwd+primwd/2,bushheight-primht-secht])
        cube (size = [bushdiam/2+secwd/2,secwd,secht], center = false);  }
difference() {
mainpart(bushdiam,bushshell,bushheight,ringthk,ringdiam,holediam);
translate([0,secwd/2-primwd/2,0])
        knockout(primwd,bushheight,primht,secwd,secht);
rotate([0,0,120]) translate([0,secwd/2-primwd/2,0])
        knockout(primwd,bushheight,primht,secwd,secht);
rotate([0,0,-120]) translate([0,secwd/2-primwd/2,0])
        knockout(primwd,bushheight,primht,secwd,secht); }

```


[User]
I need an OpenSCAD design for a "book ring" type of object. It should be a flat, generally rectangular shape with two circular cutouts on each of the long sides. These cutouts should have a flat bottom depth. The cutouts should be scaled differently on each side with the inner set having a scaling factor to make them more of an oval shape. There should be small circles at the end of the cutouts on each long side. Finally, a circular cutout that functions as a thumb hole should be added on one of the long sides. I'd like the design to be fully parametric, so I can adjust all the dimensions, depths, and hole locations.

Specifically:

*   The overall shape should be a rectangle with a specified width and a height that's a fraction of the width.
*   There should be a set of two circular cutouts on each long side.
*   The circular cutouts should have a flat depth.
*   The circles on each end should have a defined diameter
*   The inner circles should have a scaling factor to create an oval shape.
*   There should be a thumb hole on one long side with a specified diameter and offset.
*   There should be a small rectangular cutout below the thumbhole, a specified distance below the thumb hole, with a specified height and depth.
*   All depths, diameters, positions, and scaling factors should be parameters.

I don't need any special libraries for this one. Could you generate that?

[Assistant]
Bookring.scad:
```

depth = 4;
width = 80;
heightFactor = 0.7;

thumbHoleDiameter = 10;
thumbHolePosition = 0;

thumbBedDepth     = 10;
thumbBedOffset    = 3;
thumbBedSharpness = 1.2;

wingsEndRadius = 5;

$fn = 48;

/* [Hidden] */

r2 = wingsEndRadius;
d2 = r2 * 2;

r1 = (width - d2) / 2;
d1 = r1 * 2;

module twoCircle() {
    translate([-r1, 0, -0.001]) cylinder(r = r1, h = thumbBedDepth + 0.002);
    translate([r1, 0, -0.001])  cylinder(r = r1, h = thumbBedDepth + 0.002);
}

module fourCircle() {
    translate([0, r1 + r2, 0])  twoCircle();
    translate([0, -r1 - r2, 0]) twoCircle();
}

module circles() {
    translate([0, r1 + r2, 0]) {
        translate([-r1, 0, -0.001]) cylinder(r = r1, h = thumbBedDepth + 0.002);
        translate([r1, 0, -0.001])  cylinder(r = r1, h = thumbBedDepth + 0.002);
    }
    translate([0, -r1 - r2, 0]) {
        translate([-r1, 0, -0.001])
            scale([thumbBedSharpness, 1, 1])
                cylinder(r = r1, h = thumbBedDepth + 0.002);
        translate([r1, 0, -0.001])
            scale([thumbBedSharpness, 1, 1])
                cylinder(r = r1, h = thumbBedDepth + 0.002);
    }
}

module star() {
    d = sqrt(pow(r1, 2) + pow(r1, 2));
    r = d - r1;
    x = cos(45) * r;
    y = (sin(45) * r) + r2;

    difference() {
        translate([-r1, -r1-r2, 0]) cube([d1, d1 + d2, thumbBedDepth]);
        circles();
        translate([-x, y, -0.001])
            cube([x * 2, r1, thumbBedDepth + 0.002]);
    }

    translate([-r1, 0, 0])
        cylinder(r = r2, h = thumbBedDepth);
    translate([r1, 0, 0])
        cylinder(r = r2, h = thumbBedDepth);

    translate([0, r2, 0])
        cylinder(r = r, h = thumbBedDepth);
}

difference() {
    scale([1, heightFactor, 1])
        star();

    translate([-width / 2, -thumbHoleDiameter+thumbHolePosition+thumbBedOffset, depth])
        cube([width, r1, thumbBedDepth]);

    translate([0, thumbHolePosition, -0.001])
        cylinder(r = thumbHoleDiameter, h = thumbBedDepth + 0.002);
}

```


[User]
I need a parametric design for a screwdriver stand, like the one I saw on Thingiverse (thing:1044743), but I want it created from scratch so I can customize it exactly how I want.

The stand should consist of a base and cylindrical tubes to hold the screwdrivers. I need to be able to adjust the number of rows and the number of tubes per row, as well as the height of the tubes and their inner diameter.

The base should be a rectangular prism that sits directly under the tubes and has the same width and depth to match their layout and support them. Specifically the width of the base should be `rows * (diameter - 1) + 1` and the depth should be `number * (diameter - 1) + 1`, where diameter is the inner diameter of the tubes plus 1mm. The height of the base should be set to a fixed size of 2 mm. The tubes should be a bit taller and be adjustable, so I need a `height` variable for them.

The tubes themselves should be created using a `difference` of two cylinders. The outer cylinder should have a radius of `diameter / 2` and the inner cylinder radius should be `diameter/2 -1`. The inner cylinder needs to have an offset of -1 in the z-axis and needs to be taller than the outer cylinder by 2mm to make sure it cuts all the way through. The total height of the tube should be controlled by the `height` parameter.

I'd like to be able to control these parameters:

*   `rows`: the number of rows of tubes (default maybe 3, range 2-5)
*   `number`: the number of tubes per row (default maybe 4, range 2-6)
*   `height`: the height of the tubes (default maybe 30, range 15-50)
*   `inner_diameter`: the inner diameter of the tubes in mm (default maybe 14, range 10-40).
*   `diameter`: Calculated as `inner_diameter + 1`

The tubes should be arranged in a grid with a spacing of `diameter - 1` between each tube. The first tube in the grid should be at position (0, 0, 0).

Please generate an OpenSCAD file (or files) that does all of this. I don't need any libraries.

[Assistant]
screwdriver.scad:
```
// Customizable screw driver stand
// Created by Kjell Kernen
// Date 30.9.2015

/*[Pattern Parameters]*/
// of screw drivers:
rows=3;       // [2:5]

// of screw drivers per row:
number=4;     // [2:6]

// of the stand in mm:
height=30;    // [15:50]

// of the screw driver tubes in mm:
inner_diameter=14;  // [10:40]

/*[Hidden]*/
diameter = inner_diameter+1;
/* Modules */

module tube(height,width)
{
	difference()
	{
		cylinder(r=(width/2),    h=height);
		translate([0,0,-1])
           cylinder(r=(width/2 -1), h=height+2);
	}
}

// Drawing starts here ********************************************

//Base
translate([-diameter/2,-diameter/2,0])
    cube([rows*(diameter-1)+1,number*(diameter-1)+1,2]);

//Tubes
for (xi=[0:1:rows-1])
    for(yi=[0:1:number-1])
        translate([xi*(diameter-1),yi*(diameter-1),0])
            tube (height, diameter);

```


[User]
Okay, I'm looking to create a customizable screwdriver stand, similar to the one on Thingiverse, but I'd like to be able to adjust more parameters and have it generate all the files needed. Basically, I want a two-part design: a top piece and a base piece. The top piece will have holes for holding screwdrivers, and the base will provide a solid foundation. The idea is that the top piece slides onto the base and they are held together with a rubber band.

For the top piece, I need it to have these adjustable parameters:

*   **Number of rows:** How many rows of screwdrivers the stand should have. Let's make it adjustable from 2 to 5 rows.
*   **Number of screwdrivers per row:** This will control how many screwdrivers are held in each row. I want it to be adjustable between 2 and 6.
*   **Height of the tubes:** This will be the height of the tubes that the screwdrivers are inserted into. I need this adjustable between 15 and 50 mm.
*   **Inner diameter of the tubes:** This will control the size of the holes that hold the screwdrivers. I need this adjustable between 10 and 40 mm.
*   **Diameter of the alignment holes in the base:** These holes align with pegs on the base. Adjustable from 4 to 10 mm.

The top piece should consist of a flat base with a grid of tubes extending up from it. Each tube will have a hole of `inner_diameter` going most of the way through. In the flat base, there will be through-holes that are `hole_diameter`. These will fit over pegs on the base. The tubes themselves should be cylinders, with an inner diameter that matches the inner_diameter and an outer diameter that is a little larger. Let's add an inner diameter offset of 1mm.

I'd also like to define a `diameter` value for the tubes that’s simply `inner_diameter + 1`. This is needed for spacing the tubes.

For the base, I want to be able to adjust:

*   **Base height:** I'd like this to be adjustable from 10 to 30 mm.
*   **Peg height:** This is how high the pegs that fit into the top piece extend. This should be adjustable between 2 and 10 mm.

The base will be a simple flat rectangle that fits the dimensions of the top piece, plus a little clearance. It should have a grid of pegs on top that match up with the holes in the top piece. The base should also have a small lip around the outside edge to ensure the top part is stable when assembled, maybe a mm in height.

Could you generate the OpenSCAD files for this? I'm not looking for anything too fancy - basic shapes and simple translations will be fine. I don't need any special libraries, just the core OpenSCAD functions.

[Assistant]
screwdriver_top.scad:
```
// Customizable screw driver stand top
// Created by Kjell Kernen
// Date 30.9.2015

/*[Pattern Parameters]*/
// of screw drivers:
rows=3;       // [2:5]

// of screw drivers per row:
number=4;     // [2:6]

// of the stand in mm:
height=30;    // [15:50]

// of the screw driver tubes in mm:
inner_diameter=14;  // [10:40]

// in mm:
hole_diameter=7;  // [4:10]

/*[Hidden]*/
diameter = inner_diameter+1;
/* Modules */

module tube(height,width)
{
	difference()
	{
		cylinder(r=(width/2),    h=height);
		translate([0,0,-1])
           cylinder(r=(width/2 -1), h=height+2);
	}
}

// Drawing starts here ********************************************

//Base
difference()
{
    translate([-diameter/2,-diameter/2,0])
        cube([rows*(diameter-1)+1,number*(diameter-1)+1,2]);
    for (xi=[0:1:rows-1])
        for(yi=[0:1:number-1])
            translate([xi*(diameter-1),yi*(diameter-1),-1])
                cylinder( d2=inner_diameter, d1=hole_diameter, h=3.5);
}

//Tubes
for (xi=[0:1:rows-1])
    for(yi=[0:1:number-1])
        translate([xi*(diameter-1),yi*(diameter-1),0])
            tube (height, diameter);

```