[User]
I'd like to create a customizable heart-shaped box using OpenSCAD, similar to the design in the provided `HeartRevK2017.scad` file. This box should have two halves that are joined by a hinge and a clasp, and it should allow for embossed text on the top of each half. Here are the features I'm looking for, keeping in mind the original design:

**General Shape and Dimensions:**

*   The overall shape is a heart that folds in the middle to become a diamond (or losenge).
*   The box should have parametric width (`W`), length (`L`) and height (`H`), with default values of 40, 80, and 20 respectively.
*   The box's wall thickness (`wall`) should also be a parameter, using the extrusion width (`Q`) as a basis.
*   There should be a print tolerance (`T`) between moving parts (e.g., hinges).
*   There should be an extra gap in the center of the join (`G`).
*   The main join should include a rivet with an overhang slope angle (`S`).

**Text Embossing:**

*   There should be two text fields: `word1` and `word2`, for the text on each side of the heart.
*   I'd like to be able to control the font (`font`) used for the text, with "Helvetica" as the default, using Google Fonts (so I need support for that).
*   The font's height (`fontheight`) and thickness (`fontthickness`) should be adjustable.

**Hinge and Clasp:**

*   The hinge should be parametric, with height (`hingeh`) and spacing (`hingew`).
*   The clasp should be designed to help align the two halves when closed.

**Central Nub (Rivet):**

*   There needs to be a central nub that acts as the main join, parameterized by diameters `nubd1`, `nubd2`, and height `nubh`.
*   I want to control the nub's width using an angle `nubw`.

**Quality Controls:**

*   I'd like to have the `$fs` and `$fa` variables for controlling the quality of curves and circles, defaulting to 1 and 5.

**Print Related Constants:**

*   The file should include `T`, `G`, `S`, and `Q` variables for adjusting to different printers.

**Other Derived Values:**

*   The join rivet should have extra tolerance (`joint`) and radius (`joinr`).

Could you generate the OpenSCAD code to achieve this design? I'm not concerned with the test functions (`opentop`, `testflap`, `testjoin`), just the main shape and the parameters.

[Assistant]
HeartRevK2017.scad:
```
// Heart box
// Adrian Kennard (RevK) 2017 @theRealRevK
// Rework of http://www.thingiverse.com/thing:44579 from scratch

// Print the heart (args are monogram letters on top)

/* [Main Options] */

// letters on top
word1="";
word2="";

heart(word1,word2);

// Text on top
// Font for text on top of heart
font="Helvetica";   //[ABeeZee,Abel,Abril Fatface,Aclonica,Acme,Actor,Adamina,Advent Pro,Aguafina Script,Akronim,Aladin,Aldrich,Alef,Alegreya,Alegreya Sans,Alegreya Sans SC,Alegreya 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,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,Asap,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,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,Caudex,Cedarville Cursive,Ceviche One,Changa One,Chango,Chau Philomene One,Chela One,Chelsea Market,Chenla,Cherry Cream Soda,Cherry Swash,Chewy,Chicle,Chivo,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,Eagle Lake,Eater,EB Garamond,Economica,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,Gabriela,Gafata,Galdeano,Galindo,Gentium Basic,Gentium Book Basic,Geo,Geostar,Geostar Fill,Germania One,GFS Didot,GFS Neohellenic,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,Holtwood One SC,Homemade Apple,Homenaje,Iceberg,Iceland,IM Fell Double Pica,IM Fell Double Pica SC,IM Fell DW Pica,IM Fell DW 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,Imprima,Inconsolata,Inder,Indie Flower,Inika,Irish Grover,Istok Web,Italiana,Italianno,Jacques Francois,Jacques Francois Shadow,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,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,La Belle Aurore,Laila,Lakki Reddy,Lancelot,Lateef,Lato,League Script,Leckerli One,Ledger,Lekton,Lemon,Liberation Sans,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 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,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,NTR,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,Pacifico,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,Port Lligat Sans,Port Lligat Slab,Prata,Preahvihear,Press Start 2P,Princess Sofia,Prociono,Prosto One,PT Mono,PT Sans,PT Sans Caption,PT Sans Narrow,PT Serif,PT Serif Caption,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,Ribeye,Ribeye Marrow,Righteous,Risque,Roboto,Roboto Condensed,Roboto Slab,Rochester,Rock Salt,Rokkitt,Romanesco,Ropa Sans,Rosario,Rosarivo,Rouge Script,Rozha One,Rubik Mono One,Rubik One,Ruda,Rufina,Ruge Boogie,Ruluko,Rum Raisin,Ruslan Display,Russo One,Ruthie,Rye,Sacramento,Sail,Salsa,Sanchez,Sancreek,Sansita One,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,Sunshiney,Supermercado One,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,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,Vampiro One,Varela,Varela Round,Vast Shadow,Vesper Libre,Vibur,Vidaloka,Viga,Voces,Volkhov,Vollkorn,Voltaire,VT323,Waiting for the Sunrise,Wallpoet,Walter Turncoat,Warnes,Wellfleet,Wendy One,Wire One,Yanone Kaffeesatz,Yellowtail,Yeseva One,Yesteryear,Zeyada]

// for longer text make this smaller, for single initials, 12 is good
fontheight=12;
// How high the embossed text is
fontthickness=1;

/* [Print related constants] */
// Print related constants
// Print tolerance for moving parts, ie gap between moving edges
T=0.4;   //[0.1,0.2:0.2 TAZ6,0.3,0.4:0.4 Makerbot,0.5,0.6]
// Extra gap in centre, increase this for makerbot
G=0.0;  //[0:0 none TAZ6,0.1,0.2:0.2 Makerbot,0.3:0.4 Wider]
// Overhang slope angle for main join rivet
S=30;
// extrude width - used as a "small gap"
Q=0.6;

/* [Main constants] */
// Main constants
// Width of heart when folded as losenge
W=40;
// Length of heart when folded as losenge
L=80;
// Height of heart (before embossed mongram)
H=20;
// Wall thickness
wall=Q*2;

/* [Quality controls] */
// Quality controls
$fs=1;
$fa=5;

/* [Additional values you probably don't need to touch] */
// Additional values you probably don't need to touch
// extra tolerance on join rivet to avoid sticking
joint=0.3;
// join cylinder radius
joinr=H/5;

/* [Hinge controls] */
// Hinge height
hingeh=H/5+T;
// Spacing of hinges - some shapes of heart this won't work
hingew=W/3-T;

/* [Nub] */
// Nub in centre is cylinder d1/d2/h
nubd1=1;
nubd2=2;
nubh=2.5;
// Additional width to make nub stronger (degrees, keep small)
nubw=8;

/* [Derived values] */
// Derived values
// Angle of cut
A=atan2(W,L-W);
// nub radius
nubr=H/2-nubd2/2-T/2-Q;
nuba=360*((nubd1*(T/nubh)+nubd2*(1-T/nubh))+T)/(6.28*nubr)/2;
// center of top curve
x=sin(A)*(W/2)-T/4;
// Y position of hinge
hy=H+hingeh/4+T*sqrt(2)/2+wall;

// Test functions - useful for confirming print works without printing whole things

module opentop()
{ // view with no top
    difference()
    {
        heart();
        translate([-L,-L,H-wall-0.1])cube(L*2);
    }
}

module testflap()
{ // Make section to print to test the flap/hinge
    intersection()
    {
        heart();
        translate([-x-W/2,H/2,0])cube([x+W/2,W,max(hingeh,wall)]);
    }
}

module testjoin()
{   // Make section to print to test the main joint
    difference()
    {
        intersection()
        {
            heart();
            cube([H,H,2*(H-wall-T-nubd2/2-0.1)],center=true);
        }
        translate([-L/2,H,0])rotate([45,0,0])cube([L,H,H*2]);
    }
}

// Main construction functions

module solid(w=0,h=0,right=0)
{ // The solid model of a side, with width and height offsets
    difference()
    {
        hull()
        {
            translate([0,(W-L)/2,0])sphere(d=W-w*2);
            translate([0,(L-W)/2,0])sphere(d=W-w*2);
        }
        translate([-L,-L,H/2-h])cube(L*2);
        translate([-L,-L,-L*2-H/2+h])cube(L*2);
        rotate([0,0,-A])translate([-T/2-w,-L,-H/2-T])cube([L,L*2,H+T*2]); // Cut for two sides
    }
}

module nubshape(w=0)
{ // The actual nub itself, a simple cylinder with back support in to the base
    hull()
    { // avoid any zero width edges between these two parts
        translate([0,0,-wall-w])cylinder(d=nubd2+w,h=wall+w,$fn=50);
        cylinder(d1=nubd2+w,d2=nubd1+w,h=nubh,$fn=50);
    }
}

module nub(right=0,w=0)
{ // The nub stretched (rotated) but nuba
  // ideally this would use a rotate_extrude with limit angle rather than a hull - next version of openscad supports this
    rotate([0,90,0])
    {
        hull()
        {
            rotate([0,0,135+(right?-nuba:nuba)])translate([nubr,0,0])nubshape(w=w);
            rotate([0,0,135+(right?-nuba-nubw/2:nuba+nubw/2)])translate([nubr,0,0])nubshape(w=w);
        }
        hull()
        {
            rotate([0,0,135+(right?-nuba-nubw/2:nuba+nubw/2)])translate([nubr,0,0])nubshape(w=w);
            rotate([0,0,135+(right?-nuba-nubw:nuba+nubw)])translate([nubr,0,0])nubshape(w=w);

        }
    }
}

module nubtrack(right=0,w=0)
{
    difference()
    {
        rotate([0,90,0])rotate_extrude($fn=100)translate([nubr,0,0])projection()rotate([90,0,0])nubshape(w=w);
        rotate([0,90,0])rotate([0,0,(right?180:0)+135+(right?nuba:-nuba)])translate([-H/2,0,-H/2])cube([H,H,H]);
    }
    mirror([1,0,0])
    {
        nub(1-right,w=w);
        rotate([180,0,0])nub(1-right,w=w);
    }
}

module side(right=0,text="")
{ // Create one of the sides
    difference()
    {
        rotate([0,0,A])solid(right=right);    // The solid shape of the side
        union()
        { // Remove the inside
            rotate([0,0,A])difference()
            {
                hull()      // The inside, created using two offset for champhered top/bottom for support
                {
                    solid(wall*2,wall,right=right);
                    solid(wall,wall*2,right=right);
                }
                // Other parts added to interior as not removed from solid
                rotate([0,0,-A])
                {
                    // Support for the cut at the top for bridging
                    hull()
                    {
                        translate([-L,T/sqrt(2)+wall,H/2-wall])cube([L*2,Q*4,Q]);
                        translate([-L,T/sqrt(2)+wall+Q*2,H/2-wall-Q*2])cube([L*2,Q*2,Q]);
                    }
                    hull()
                    {
                        translate([-L,-T/sqrt(2)-Q*2+wall-Q*2,H/2-wall-Q])cube([L*2,Q*4,Q]);
                        translate([-L,-T/sqrt(2)-Q*2+wall-Q,H/2-wall-Q*2])cube([L*2,Q*2,Q]);
                    }
                   // Inside for nub track for extra support
                    translate([-wall-T/2,0,0])nubtrack(right,w=T*sqrt(2)+Q*3);
                }
            }
        }
        // Other parts removed from main shape
        // The main slice separating the flap
        translate([0,H/2,0])rotate([45,0,0])cube([W*2,T,H*sqrt(2)+T*2],center=true);
        // Space for nub if it goes to far
        intersection()
        {
            translate([-wall*2-T/2,H-nubd2*sqrt(2),-H/2])rotate([45,0,0])cube([wall*2+T,nubd2,H*sqrt(2)+T*2]);
            translate([-T/2,0,0])nub(right,w=2*T*sqrt(2));
        }
        // Thin edges of central join as that is where is sticks
        translate([-T/2-(wall-Q)/sqrt(2)-T,H,-H/2])rotate([45,0,0])rotate([0,0,45])translate([0,-wall,wall*sqrt(2)])cube([wall,wall,(H-wall*2)*sqrt(2)]);
        // Nub track
        translate([-T/2,0,0])nubtrack(right=right,w=T*sqrt(2));
        // Hinge holes in flap
        translate([-x,hy,0])for(m=[0:1])mirror([m,0,0])
        {
            translate([-hingew/2-T*2-hingeh-T*sqrt(T),0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh*3/2+T+T*sqrt(2),d=hingeh,$fn=50);
            translate([-hingew/2-hingeh/2-2*T*sqrt(2),0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2+2*sqrt(2)*T,d=hingeh+T*2,$fn=50);
            hull()
            {
                translate([-hingew/2-hingeh/2-2*T*sqrt(2),hingeh/2-T,-H/2-T])cube([hingeh/2+2*sqrt(2)*T,T,wall+T*2]);
                translate([-hingew/2-hingeh/2-2*T*sqrt(2),H-hy+T,-H/2-T])rotate([45,0,0])cube([hingeh/2+2*sqrt(2)*T,T,sqrt(2)*wall+T*2]);
            }
        }
        // Join
        if(right)translate([-wall-T,0,0])rotate([0,90,0])cylinder(r=joinr+T+joint,h=wall+T,$fn=100);
    }
    // Other parts added to main shape
    // Clasp to help align the flap
    difference()
    {
        hull()
        {
            translate([-T/2-wall*2-T,(nubr+nubd2/2+Q+T/2+T)/sqrt(2),-H/2])cube([wall+T*2,H/3,wall]);
            translate([-T/2-wall*2-T,(nubr+nubd2/2+Q+T/2+T)/sqrt(2)+H,-H/2+H])cube([wall+T*2,H/3,wall]);
        }
        translate([-T/2-wall-T,H-T/sqrt(2),-H/2])rotate([45,0,0])cube([wall+T*2,H*2,H*2]);
        translate([-T/2-wall*2-T*2,H,-H/2])rotate([45,0,0])translate([0,H/4,0])cube([wall+T*3,H*2,H*2]);
    }
    // Hinge
    translate([-x,hy,0])for(m=[0:1])mirror([m,0,0])
    {
        difference()
        {
            union()
            {
               translate([-hingew/2-hingeh/2-T*sqrt(2)-hingeh/2-T*sqrt(2),0,hingeh/2-H/2])hull()
               {
                   rotate([0,90,0])cylinder(h=hingeh/2,d=hingeh,$fn=50);
                   translate([-1,-hingeh/2,-hingeh/2])cube([hingeh/2+1,hingeh,hingeh/2]);
               }
               translate([-hingew/2,0,hingeh/2-H/2])hull()
               {
                   rotate([0,90,0])cylinder(h=hingeh/2,d=hingeh,$fn=50);
                   translate([0,-hingeh/2,-hingeh/2])cube([hingeh/2+1,hingeh,hingeh/2]);
               }
            }
            translate([-hingew/2-hingeh/2-T*sqrt(2)-hingeh/2-T*sqrt(2),0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2,r2=hingeh/2,r1=0,$fn=50);
            translate([-hingew/2,0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2,r1=hingeh/2,r2=0,$fn=50);
        }
        translate([-hingew/2-sqrt(2)*T,0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2,r1=hingeh/2,r2=0,$fn=50);
        translate([-hingew/2-sqrt(2)*T-hingeh,0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2,r2=hingeh/2,r1=0,$fn=50);
        hull()
        {
            translate([-hingew/2-hingeh/2-T*sqrt(2),0,hingeh/2-H/2])rotate([0,90,0])cylinder(h=hingeh/2,d=hingeh,$fn=50);
            translate([-hingew/2-hingeh/2-T*sqrt(2),-hingeh*2,-H/2])cube([hingeh/2,T,wall]);
        }
    }
    // Join
   if(!right)
    {
        difference()
        {
            r2=min(sqrt(H/2*H)/2,nubr-nubd2/2-Q*3/2-T*sqrt(2)/2)-T;
            rotate([0,90,0])
            {
                translate([0,0,-T])cylinder(r=joinr,h=wall+T*3+G);
                translate([0,0,G])cylinder(r=joinr,h=wall+T,$fn=100);
                translate([0,0,wall+T*3/2+G])cylinder(r=r2,r2=r2-wall,h=wall*2);
                translate([0,0,-T/2])cylinder(r1=min(r2+min(wall,G),nubr-nubd2/2-T/2),r2=r2,h=G);
                translate([0,0,-wall*2-T/2])cylinder(r2=r2,r=r2-wall,h=wall);
            }
            translate([-T/2+G,-joinr*2,-joinr])rotate([0,90-S,0])cube([H,H,H]);
            translate([-T/2+G,-joinr*2,-H-joinr])cube([H,H,H]);
            h=tan(S)*(wall+2*T);
            x=sqrt(joinr*joinr-(joinr-h)*(joinr-h));
            for(m=[0:1])mirror([0,m,0])translate([wall+T*3/2+G,x,-(H/2-T)/2+h])rotate([S-90,0,0])cube([H,H,H]);
        }
    }
    // Text
    if(text!="")translate([-(x+sqrt(W/2*W/2-H/2*H/2))/2,W/4,H/2-T])mirror([right,0,0])minkowski()
    {
        cylinder(r1=fontthickness/2,r2=0,h=fontthickness,$fn=4);
        linear_extrude(height=T)text(text,font=font,size=fontheight,halign="center",valign="baseline");
    }
    // Nub
    translate([-T/2,0,0])nub(right);
}

module heart(l="",r="")
{
    translate([0,0,H/2])
    {
        translate([-G/2,0,0])side(0,l);
        translate([G/2,0,0])mirror([1,0,0])side(1,r);
    }

}

```


[User]
I'm looking to design a case for a small microcontroller board, like a Pro Micro. I'd like the case to have two main parts: a base that the board slides into and a cap that slides into the base to close it. I need this to be parametric so I can adjust the dimensions for different board sizes and component placements.

Here are the key features I need:

**Base Case:**

*   **Board Slot:** The board needs to slide into slots on the sides of the case. I need to specify the board's width, length, and thickness to define the size of these slots. I also need to specify how deep the slots are. It should be possible to define a board slot depth of zero.
*   **Board Offset:** I need the ability to offset the board vertically within the case.
*   **Inner Height:** I need to specify the inner height of the case, which will be the space available above the board once it's inside the slots.
*   **USB Opening:** I want to include an opening on the front of the case for a USB connector. I should be able to set the width and height of this opening, and if I don't need one, I should be able to set the size to 0 to have it not render.
*   **Case Thickness:** The case walls should have a uniform thickness. I need to be able to specify this thickness.

**Cap:**

*   **Cap Fit:** The cap needs to slide into the case and fit snugly but not too tightly. I need to be able to specify a small gap between the cap and the case opening so that it is not too tight.
*   **Cap Slot:** I need to include a slot in the cap, for wires to pass through. I need to be able to define the width of this slot and the height, relative to the board, where the slot sits in the cap. If I don't need a slot, I should be able to set the width to 0.
*   **Cap Thickness:**  The cap should have its own thickness, and the cap slot should end at the bottom of the cap. This thickness needs to be independently adjustable.

**General Parameters:**

*   All dimensions should be in millimeters.
*   I need to be able to easily switch between rendering just the case and just the cap so that I can print them separately.
*   I'm aiming for a design where the cap fits snugly by sliding in, so that I don't need screws.

I don't need any library files, just the main .scad file(s), and I’m familiar with OpenSCAD basics like `cube`, `translate`, `difference`, and `union`. Can you create the parametric OpenSCAD files for me, based on these requirements?

[Assistant]
ProMicroHousing.scad:
```
// Which one would you like to see?
part = "case"; // [case:the case without cap,cap:the cap for the case]

// The width of the (e. g. Arduino) board which should fit into the case (all parameters are in mm)
board_width = 18.5;

// The length of the (e. g. Arduino) board which should fit into the case
board_length = 33.5;

// The thickness of the (e. g. Arduino) board which should fit into the case, must be >= 0. (its used for the thickness of the slots, it is not the size of the inner space
board_thickness = 2.0;

// the board can slide into the case. Therefore there are slots on both sides of the case. If you want the complete inner of the case with same width as above given board with: set this parameter to 0
board_slot_depth = .75;

// if the board should not be centered in the case, you can add an offset here. Positive values give a lower position of the slots
board_out_of_center_Z = 1.5;

// the inner height of the case
case_inner_height = 8;

// on the front there is a centered opening. Typically this is used for connecting the usb conncetor of the board. Set to 0 if you don't need a openening there
USB_openening_height = 8;
USB_openening_width = 11;

// the cap is made a little bit smaller and thinner than the cap slot in the case, must be >= 0 (in mm)
gap = 0.2;

// in the cap there is a slot, e. g. for passing a wire through the cap. Set it to 0 if you do not need a slot
cap_Gap_width =1.7;

// the height is measured above the board in the case. The slot ends at the lower end of the cap
cap_gap_height = 3;

module dummy() {
    //end of configurable section of customizer
}

houseTS = 2;
houseTT = 2;
capT = 3;
capSkewed = 2;
capWT = 1.5;

houseL = board_length + houseTT + capT;
houseW = board_width + 2 * houseTS;
houseH = case_inner_height + 2 * houseTS;

module mycube(pos,center=[false,false,false])
{
    translate([center[0]?-pos[0]/2:0,center[1]?-pos[1]/2:0,center[2]?-pos[2]/2:0])cube(pos);
}

module cap(gap = 0) {
    difference() {
        union() {
            translate([0,0,(houseTS-.5)/2+(gap==0?1:0)]) intersection() {
                mycube([capT,houseW-2*capWT-2*gap,case_inner_height+.5+houseTS+2*(gap==0?1:0)],[false,true,true]) ;
                rotate([45,0,0]) rotate([0,90,0]) cylinder(capT-gap,sqrt(2)*(houseW/2-capWT+capT-capSkewed-gap),sqrt(2)*(houseW/2-capWT-capSkewed-gap),$fn=4);
            }
        }
        if(gap!=0) translate([0,0,-case_inner_height-board_out_of_center_Z/2+cap_gap_height])mycube([capT+2,cap_Gap_width,case_inner_height],[false,true,false]);
    }
}

PartIsCap = (part == "cap");

rotate([0,-90,0]) if(!PartIsCap)
difference() {
    mycube([houseL,houseW,houseH],[false,true,true]);
    translate([-1,0,0]) mycube([2+houseTS,USB_openening_width,USB_openening_height],[false,true,true]);
    translate([houseTS,0,-board_out_of_center_Z]) mycube([houseL,board_width,board_thickness],[false,true,true]);
    translate([houseTS,0,0])mycube([houseL,board_width-2*board_slot_depth,case_inner_height],[false,true,true]);
    translate([houseTT+board_length+0.001,0,0]) cap(0);
}
else
    translate([-15,0,0]) cap(.2);
```


[User]
Hi there, I'm looking to create a highly customizable stencil generator in OpenSCAD. I want it to be parametric, so I can easily adjust things like the stencil thickness, border size, text, font, and so on.

Here's what I have in mind:

**Core Functionality:**

*   **Multiple Modes:** I'd like to be able to generate stencils in a few different ways:
    *   **"All" mode:** This mode should generate a stencil containing multiple lines of text, ideally the entire alphabet. I should be able to specify the text for each line.
    *   **"Single" mode:** This mode would generate a stencil for just a single specified letter.
    *   **"Line" modes (1, 2, 3):** I need modes for a stencil containing 1, 2, or 3 lines of text, again specifying the text for each line.

*   **Text Customization:**
    *   **Font:** I need to be able to use any font available in OpenSCAD (I know these are mostly limited to system fonts, but it's important for this project).
    *   **Text Size:** I want to control the size of the text in millimeters (mm).
    *   **Vertical Spacing:** Allow for adding extra vertical spacing between lines of text. This might be needed if certain fonts overlap a lot.
    *   **Horizontal and Vertical Alignment:** I'd like to set the horizontal and vertical alignment of the text within the stencil. Options like left, right, center, top, bottom, and baseline (where appropriate) are needed. Additionally, it should be possible to specify custom spacing between letters (a space parameter) and scale/stretch the text in the X and Y directions.
    *   **Maximum Characters:** I'd like to set a maximum number of characters per line, particularly for the "all", "1", "2", and "3" modes.

*   **Stencil Customization:**
    *   **Stencil Thickness:** I need to control the thickness of the stencil, also in millimeters (mm).
    *   **Stencil Border:** I want to set the size of the border around the text, again in millimeters.

*   **Output:** The output should be suitable for 3D printing, so a solid object with the text cut out of it, ideally making sure that letters like A, B, D, O, P, Q, and R are connected in a stencil format.

I know OpenSCAD doesn't have a built-in text-joining mechanism, but maybe you can achieve this by using the `offset()` function and strategically placing rectangles behind the letters to act as bridges, or by using a more advanced library.

I’d appreciate it if you could generate a parametric OpenSCAD file (or files if needed) that handles all of these requests. I'm not sure if I need to use any particular libraries for this, but please let me know if any are needed. It might be useful to use some kind of OpenSCAD library, such as MCAD, BOSL, BOSL2, dotSCAD, NopSCADlib, or BOLTS, if you feel that this will help with the design. I can get any of these separately.

[Assistant]
stencil.scad:
```
/* [Main] */
//Stencil Thickness (in mm)
ST = 2;
//Stencil Border (in mm)
SB=10;

/* [Text] */
//Single Letter or amount of lines
p = "all";//[all,single,1,2,3]
//Text for single letter
t="A";
//Text
print1="A B C D E F";
print2="G H I J K L";
print3="M N O P Q R S";
print4="T U V W X Y Z";
//Text Size in mm
TS=50;
//https://www.google.com/fonts[eg Liberation Sans:style=Bold Italic]
Font="Times New Roman";
//Additional Vertical Spacing between text lines (if they merge for larger fonts)
VS=0;
//Maximum characters in a line
MC=7;

/* [Advanced Text] */
//Vertical
VA="center";// Eg left, right, center, or any number
//Horizontal
HA="center";//Eg top, center, bottom, baseline, or any number
// Spacing
space=1;
//Text Stretch X
TSX=1;
//Text Stretch Y
TSY=1;

TSMM=TS*3*25.4/72.0;

if(p=="all"){
difference(){

//STENCIL
translate([0,0,0]){
cube([(MC+2)*TSMM+2*SB,4*TSMM+5*SB+VS*3,ST]);
}

//TEXT
translate([TSMM*4.5+SB,3.5*TSMM+(SB*4)+(3*VS),0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print1,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,2.5*TSMM+(SB*3)+(2*VS),0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print2,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,1.5*TSMM+(SB*2)+VS,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print3,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,0.5*TSMM+SB,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print4,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

}

}

if(p=="single"){
    difference(){
translate([0,0,0]){
    cube([TSMM+2*SB,TSMM+2*SB,ST]);
}
translate([TSMM/2+SB,TSMM/2+SB,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(t,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

}
}

if(p=="1"){
difference(){

//STENCIL
translate([0,0,0]){
cube([(MC+2)*TSMM+2*SB,TSMM+2*SB+VS*3,ST]);
}

//TEXT
translate([TSMM*4.5+SB,0.5*TSMM+SB,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print1,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

}
}

if(p=="2"){
difference(){

//STENCIL
translate([0,0,0]){
cube([(MC+2)*TSMM+2*SB,2*TSMM+3*SB+VS*3,ST]);
}

//TEXT
translate([TSMM*4.5+SB,1.5*TSMM+(SB*2)+VS,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print1,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,0.5*TSMM+SB,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print2,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

}

}

if(p=="3"){
difference(){

//STENCIL
translate([0,0,0]){
cube([(MC+2)*TSMM+2*SB,3*TSMM+4*SB+VS*3,ST]);
}

//TEXT

translate([TSMM*4.5+SB,2.5*TSMM+(SB*3)+(2*VS),0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print1,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,1.5*TSMM+(SB*2)+VS,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print2,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

translate([TSMM*4.5+SB,0.5*TSMM+SB,0]){
linear_extrude(height=ST+0.1){
scale([TSX,TSY,ST]){
text(print3,TSMM,Font,halign=HA ,valign=VA,spacing=space);
    }
}
}

}

}

```


[User]
I'd like a fidget spinner generator that's highly customizable. I'm thinking it should let me choose the number of "rays" or arms, and how many weights are on each ray. I also want to be able to select the type of weight - things like 5/16", 3/8", or 1/2" hex nuts, M8, M10, or M12 nuts (both the ISO and DIN sizes), 608 bearings, or even different sized ball bearings (5/16", 3/8", 1/2", and 5/8"), or even coins (penny, nickel, dime, or quarter), and M4 square nuts.

I'd also like a way to control the edge roundness, like a corner radius. Then, I'd like to be able to taper the rays or make them straight. It would also be great to add glue grooves, both for the center bearing and for the weights on the rays. And lastly, if I only have one weight on each ray, I'd like to be able to extend that ray out a bit. Can this all be done?

I think the design should use minkowski sums for the roundness and `hull()` for the tapered rays. I'm also imagining a `glueGroove()` module that uses a `cylinder()` (or a `cube()` when the nut is square) to make the glue grooves.

[Assistant]
ray-spin-2017-09-29.scad:
```
// lucina
// 2017-09-29

// preview[view:south, tilt:top]

// the number of rays
rays = 3; //[1,2,3,4,5,6]

// the weights per ray
numWeights = 2;   //[1, 2, 3, 4]

// mm to extend ray if only 1 weight per ray
extra = 4;  //[0:1:20]

// the type of weight
whichWeight = "5/16 hex nut";   //[608 bearing, 5/16 hex nut, 3/8 hex nut, 1/2 hex nut, M8 hex nut, M10 16 hex nut, M10 17 hex nut, M12 18 hex nut, M12 19 hex nut, M4 square nut, penny, nickel, dime, quarter, 5/16 ball bearing, 3/8 ball bearing, 1/2 ball bearing, 5/8 ball bearing]

// corner radius in mm; > 0 causes timeout but Create Thing still works
radius = 2;  //[0:.5:3]

// ray style
rayStyle = "tapered";   //[tapered, straight, minimal]

// horizontal center bearing glue groove
bearingGlueGroove = 0;   //[0, .5, 1.0, 1.5]

// horizontal ray weights glue groove
weightsGlueGroove = 0;   //[0, .5, 1.0, 1.5]

/* [Hidden] */
$fn = 60;
x = 0; y = 1; z = 2;
thick = 3;
space = 2;
inch = 25.4;

bearing = [22, 22, 7]; //608 bearing
sae = [.577*inch, .5 * inch, 7]; // 5/16 hex nut
sae38 = [.650*inch,.562*inch, 7];	// 3/8
sae12 = [.866*inch, .75*inch, 7];	// 1/2
metric8 = [15, 13, 7];   // M8 hex nut
metric10_16 = [17.77, 16, 7];   // M10 16 hex nut
metric10_17 = [19.6, 17, 7];   // M10 17 hex nut
metric12_18 = [20.03, 18, 7];   // M12 18 hex nut
metric12_19 = [21.9, 19, 7];   // M12 19 hex nut
metric4sq = [7, 7, 3.2];
penny = [19.05, 19.05,1.55];  //x4
nickel = [21.21, 21.21, 1.95]; //x3
dime = [17.91, 17.91, 1.35]; //x5
quarter = [24.26, 24.26, 1.75];  // x4
ball516 = [5/16*inch, 5/16*inch, 5/16*inch];
ball38 = [3/8*inch, 3/8*inch, 3/8*inch];
ball12 = [1/2*inch, 1/2*inch, 1/2*inch];
ball58 = [5/8*inch, 5/8*inch, 5/8*inch];

step = 360 / rays;
stop = (rays-1) * step;
weight = (whichWeight == "608 bearing") ? bearing :
   (whichWeight == "5/16 hex nut") ? sae :
   (whichWeight == "3/8 hex nut") ? sae38 :
   (whichWeight == "1/2 hex nut") ? sae12 :
   (whichWeight == "M8 hex nut") ? metric8 :
   (whichWeight == "M10 16 hex nut") ? metric10_16 :
   (whichWeight == "M10 17 hex nut") ? metric10_17 :
   (whichWeight == "M12 18 hex nut") ? metric12_18 :
   (whichWeight == "M12 19 hex nut") ? metric12_19 :
   (whichWeight == "M4 square nut") ? metric4sq :
   (whichWeight == "penny") ? penny :
   (whichWeight == "nickel") ? nickel :
   (whichWeight == "dime") ? dime :
   (whichWeight == "quarter") ? quarter :
   (whichWeight == "5/16 ball bearing") ? ball516 :
   (whichWeight == "3/8 ball bearing") ? ball38 :
   (whichWeight == "1/2 ball bearing") ? ball12 : ball58;
echo(whichWeight, weight[x], weight[y], weight[z]);
resolution = (whichWeight == "5/16 hex nut") ? 6 :
(whichWeight == "3/8 hex nut") ? 6 :
(whichWeight == "1/2 hex nut") ? 6 :
(whichWeight == "M8 hex nut") ? 6 :
(whichWeight == "M10 16 hex nut") ? 6 :
(whichWeight == "M10 17 hex nut") ? 6 :
(whichWeight == "M12 18 hex nut") ? 6 :
(whichWeight == "M12 19 hex nut") ? 6 :
(whichWeight == "M4 square nut") ? 4 : 60;
echo("resolution=", resolution);
rotation = (resolution == 6) ? 30 : 0;
echo("rotation=", rotation);
skeleton = [thick + extra, min(weight[x], ball38[x]), bearing[z]];

module node(rad, wt) {
   fcylinder(bearing[z], wt[x]+2*space, rad);
}

module fcylinder(z, x, rad) {
   minkowski() {
      cylinder(h=z-2*rad, d=x-2*rad, center=true);
      sphere(rad);
   }
}
module fcube(cu, rad) {
   minkowski() {
      cube([cu[x]-2*rad, cu[y]-2*rad, cu[z]-2*rad], center=true);
      sphere(rad, center=true);
   }
}
module glueGroove(grooveHt, diam, res) {
   if ( res == 6 )
      rotate([0, 0, 30])
         cylinder(h=grooveHt, d=diam+2*grooveHt, $fn=res, center=true);
   if ( res == 4 )
      cube([diam+2*grooveHt, diam+2*grooveHt, grooveHt], center=true);
   if ( res == 60 )
      cylinder(h=grooveHt, d=diam+2*grooveHt, $fn=res, center=true);
}

difference() {
   union() {
     fcylinder(bearing[z], bearing[x]+2*thick, radius);
      for ( angle = [0 : step : stop] ) {
         rotate([0, 0, angle]) {
            if ( rayStyle == "tapered" ) {
               hull() {
                 fcylinder(bearing[z], bearing[x]+2*thick, radius);
                 for ( n = [0 : 1 : numWeights-1] ) {
                   if ( numWeights == 1 && n == 0) {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space) + extra, 0, 0])
                        node(radius, weight);
                   }
                   else {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space), 0, 0])
                        node(radius, weight);
                   }
                 }
               }
            }  //tapered
            if ( rayStyle == "straight" ) {
               hull() {
                  fcylinder(bearing[z], weight[x]+2*thick, radius);

                 for ( n = [0 : 1 : numWeights-1] ) {
                   if ( numWeights == 1 && n == 0) {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space) + extra, 0, 0])
                        node(radius, weight);
                   }
                   else {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space), 0, 0])
                        node(radius, weight);
                   }
                 }
           }
         }  //minimal
         if ( rayStyle == "minimal" ) {
               union() {
                  if ( (numWeights == 1) && (extra > 0) )
                     translate([(bearing[x]+thick/2+skeleton[x])/2, 0, 0])
                        fcube(skeleton, radius);
                 for ( n = [0 : 1 : numWeights-1] ) {
                   if ( numWeights == 1 && n == 0) {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space) + extra, 0, 0])
                        node(radius, weight);
                   }
                   else {
                     translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space), 0, 0])
                        node(radius, weight);
                   }
                 }
           }
         }  //minimal
      }
   }
   }
   // holes
   union() {
      if ( bearingGlueGroove > 0 ) {
         glueGroove(bearingGlueGroove, bearing[x], 60);
      }
      cylinder(h=2*bearing[z], d=bearing[x], center=true);
      for ( angle = [0 : step : stop] ) {
         rotate([0, 0, angle]) {
            for ( n = [0 : 1 : numWeights-1] ) {
               if ( numWeights == 1 && n == 0 ) {
                  translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space) + extra, 0, 0])
                     union() {
                        if ( resolution == 4 )
                           cube([weight[x], weight[y], 2*bearing[z]], center=true);
                        else
                           rotate([0, 0, rotation])
                              cylinder(h=2*bearing[z], d=weight[x], center=true, $fn=resolution);
                        if ( weightsGlueGroove > 0 ) {
                           glueGroove(weightsGlueGroove, weight[x], resolution);
                        }
                     }
               }
               else {
                  translate([(bearing[x]+weight[y])/2 + thick + n*(weight[y] + space), 0, 0])
                     union() {
                        if ( resolution == 4 )
                           cube([weight[x], weight[y], 2*bearing[z]], center=true);
                        else
                           rotate([0, 0, rotation])
                              cylinder(h=2*bearing[z], d=weight[x], center=true, $fn=resolution);
                        if ( weightsGlueGroove > 0 ) {
                           glueGroove(weightsGlueGroove, weight[x], resolution);
                     }
                  }
               }
            }
         }
      }
   }  //union holes
}  //difference

```


[User]
Hey, I'm looking to create some custom lace badges, and I'd like your help generating the OpenSCAD code. I've been playing around with a design, but it's a bit clunky and I'd like something more robust and flexible.

Basically, I want a badge that uses a 2D outline as its main feature, kind of like a silhouette. This outline will be imported as a list of points, likely copied from a tool like the Stencil Factory (either version works). Then, I need to be able to adjust the following parameters:

*   **`input`**: This will be the string of points representing the 2D logo outline, like `[[x1,y1], [x2,y2], ...]`. I need to make sure the code handles cases where this is empty/no input.
*   **`boarder`**: The thickness of a border around the 2D logo. This should be an optional parameter, defaulting to 0 if not set.
*   **`comp_size`**: An extra padding value added to the base shape's dimensions to accommodate pointy or more complex images.
*   **`xcomp` & `ycomp`**:  These are compensation values for the x and y position of the badge, to allow for manual adjustments.
*   **`loop_size`**: The diameter of a loop used for attaching the badge to a lace.
*   **`shape`**: An integer that defines the base shape for the badge, with options like `0:Square`, `4:Diamond`, `5:Pentagon`, `6:Hexagon`, `7:Heptagon`, `8:Octagon`, `9:Nonagon`, `10:Decagon`, `11:Hendecagon`, `12:Dodecagon`, and also `180:Round`, `360:Smooth`.

The badge should have a backplate that follows the specified `shape` (or is a square if `shape` is 0) that the 2D logo sits on, and also a loop on the top edge. The loop and back plate should be joined smoothly. I need the option to add a border around the backplate.

Also, the 2D logo should be extruded to create the 3D effect. The backplate should be a bit thicker than the 2D logo extrusion. And finally, there should be a hole going through the loop for the lace, but the shape of the hole should be cylindrical.

The program also needs to automatically detect the `input_width` and `input_height` from the input data so we can size the backing properly.
It seems we need `hull` and `difference` as well as `linear_extrude` built in OpenSCAD commands.
I think that's everything. Thanks!

[Assistant]
lacebadge.scad:
```
//input from http://chaaawa.com/stencil_factory_js/
input = "no_input";
//The size of the border arround the image (0 is no boarder)
boarder = 0; //[100]
//how much extra to add to the base shape, to allow for pointy or unusual images
comp_size = 10;//[100]
//xposition compensation
xcomp=0;
//yposition compensation
ycomp=-2;
//size of lace loop
loop_size = 5;
//the shape of the badge (including boarder)
shape = 0 ;// [180:Round, 360:Smooth, 4:Diamond, 5:Pentagon, 6:Hexagon, 7:Heptagon, 8:Octagon, 9:Nonagon, 10:Decagon, 11:Hendecagon, 12:Dodecagon,0:Square]

points_array = (input=="no_input"?  [[91,35],[[179.03,131.04],[177.55,131.62],[174.75,132.95],[170.86,135.19],[166.75,137.95],[162.81,141.35],[159.29,145.13],[156.83,148.58],[155.45,151.17],[155.18,152.75],[155.42,153.75],[156.7,153.55],[158.91,152.22],[161.69,150.53],[164.33,149.45],[166.68,149.18],[168.78,149.43],[170.47,150.6],[171.84,152.56],[173.14,154.41],[174.93,154.04],[178.04,153.3],[182.79,153],[188.16,153.49],[192.1,155.25],[195.09,158.08],[197.5,161.72],[199.06,164.7],[200,165.96],[201.09,164.61],[203,161.33],[205.76,157.43],[208.98,154.83],[213.16,153.46],[218.68,153],[223.24,153.29],[225.5,154],[226.19,154.71],[226.99,155],[227.8,154.41],[228.5,153],[229.53,151.27],[231.13,149.93],[233.4,149.37],[236.08,149.52],[239.06,150.72],[242.07,152.71],[244.4,154.3],[245.76,154.57],[245.57,152.83],[244.16,149.59],[241.46,145.49],[238.19,141.7],[233.84,138.13],[228.56,134.56],[224.11,132.05],[221.76,131],[220.86,131.84],[219.9,133.85],[218.06,136.42],[213.2,137.98],[208.81,139.02],[206.25,139.73],[205.36,139.67],[204.98,138.86],[204.7,137.46],[204.02,136],[202.97,135.13],[201.54,136.5],[200,138.5],[198.95,136.75],[197.93,135.51],[196.95,135],[196.28,135.54],[196,136.83],[195.85,138.28],[195.48,139.19],[193.15,139.09],[188.3,138.12],[182.66,136.32],[180.61,133.77],[179.71,131.82],[179.03,131.04]]]: input);

dispo_width = boarder*2;
badge_height = 10;

module logo(){
    translate([-400/2, -300/2, -badge_height/2]){
        for (i = [1:len(points_array) -1] ) {
            linear_extrude(height=badge_height/2)
            {
                polygon(points_array[i]);
            }
        }
    }
}

module back(){
    swidth = input_width+comp_size+boarder;
    sheight = input_height+comp_size+boarder;
    if (shape!= 0){
        translate([xcomp,xcomp,0]){
            scale([swidth,sheight,1]){
                cylinder(d=1,h=badge_height/2,$fn=shape);
            }
        }
    } else {
        translate([xcomp,ycomp,badge_height/4]){
            cube([swidth,sheight,badge_height/2],center=true);
        }
    }
}
module loop(){
    swidth = input_width+comp_size;
    translate([0,0,(badge_height+loop_size)/2]){
        rotate([0,90,0]){
            cylinder(d=loop_size+5,h=swidth*0.75, center=true);
        }
    }
}
module add_boarder(){
    swidth = input_width+comp_size;
    sheight = input_height+comp_size;

    if (shape!= 0){
        translate([xcomp,xcomp,-badge_height/2]){
            difference(){
                scale([swidth+boarder,sheight+boarder,1]){
                    cylinder(d=1,h=badge_height/2,$fn=shape);
                }
                scale([swidth,sheight,1]){
                    cylinder(d=1,h=badge_height/2,$fn=shape);
                }
            }
        }
    } else {
        translate([xcomp,ycomp,-badge_height/4]){
            difference(){
                cube([swidth+boarder,sheight+boarder,badge_height/2],center=true);
                cube([swidth,sheight,badge_height/2],center=true);
            }
        }
    }
}

module badge(){
    color("gray"){
        logo();
    }
    difference(){
        hull(){
            back();
            loop();
        }
        translate([0,0,(badge_height+loop_size)/1.75]){
            rotate([0,90,0]){
                cylinder(d=loop_size,h=(input_width+comp_size)*2, center=true);
            }
        }
    }
    if (boarder>0){
        add_boarder();
    }
}
input_width = points_array[0][0];
input_height= points_array[0][1];
badge();
```


[User]
I'm looking for an OpenSCAD design for a customizable handle that can be used with Allen wrenches. I'd like it to work a bit like a screwdriver, where you insert the Allen wrench into a slot that locks it into place during use, but still lets you remove the wrench when you need to use it without the handle.

Specifically, I need the following parameters to be customizable:
*   **`hex_size`**: This is the size of the hex key itself (e.g., 2.5mm, 4mm, etc.). The design should have a slot that fits this hex key securely.
*   **`handle_diameter`**: The overall diameter of the handle itself.
*   **`handle_length`**: The length of the handle.
* **`hole_delta`**: The clearance for the hex key. I'd like to be able to change how much extra space is added around the hex key when generating the slot.

The handle design should have a few key features. First, the base of the handle, where the wrench is inserted, should have a small neck or step where it transitions to the main handle diameter. It should also have a rounded top to provide a comfortable grip. The handle should include a locking mechanism that allows you to rotate the wrench using the handle. The handle also should include the capability to add knurling, but it should be optional, controlled by a parameter I'll call `knurl`. If `knurl` is true, then knurling should be included, otherwise it shouldn't.

The locking mechanism should work as follows: There is a long slot into which the hex key slides, but then a perpendicular hole is present, which constrains the key from rotating in the long slot. So, to insert or remove the key, you would have to rotate it to line up with the long slot. Additionally, I'd like the end of the slot to have an additional cutout to allow for a bend at the end of a key.

I don't need any libraries included or used and would like all of the code generated from scratch.

[Assistant]
Customizable_handle.scad:
```
// Diameter of hole for the hex wrench
hex_size = 2.75;

// Increase slot size by this amount
hole_delta = 0.2;

// Diameter of the handle
handle_diameter = 25;

// Overall length of the handle
handle_length = 60; //[35:100]

handle(hex_size);

module handle(hex_size)
{
	hex_radius = (hex_size + hole_delta) / 2;
	hex_size = hex_size + hole_delta;
	handle_radius = handle_diameter / 2;
	knurl_offset = handle_radius * 1.2;
	//handle_height = 50; // moved to customizer. See below
    handle_height=handle_length-12.5;
	slot_width = 1.2 * handle_radius;
	zip_tie_back = 0.6 * handle_radius;
	slot_bottom = 15;
    z_adjust = hole_delta*1.5; // printing a supported overhand will shrink the horizontal slot in the z-dimension, requiring an additional offset in adition to the already-applied hole_delta.

	$fn=40;									// Control quality of mesh

	hole_radius = hex_radius + .2;	// Give a little more room for small hole

	difference()
	{
		union()
		{
			cylinder(h = 5, r1 = handle_radius, r2 = handle_radius);
			translate(v=[0, 0, 5])
				cylinder(h = handle_height - 5, r = handle_radius);
			translate(v=[0, 0, handle_height])
				sphere(handle_radius);
		}

		for (angle = [30:60:360])
			translate(v=[knurl_offset * cos(angle), knurl_offset * sin(angle), 0])
				cylinder(h = handle_height + handle_radius, r = handle_radius / 2.7);

		// Shaft hole
		cylinder(h = handle_height + handle_radius, r = hole_radius);

		// Small cone at bottom
		cylinder(h = 2, r1 = hole_radius + .6, r2 = hole_radius);

		// Slot for the wrench
		translate(v=[0, -hex_size / 2, slot_bottom])
			cube(size = [handle_radius, hex_size, handle_height + handle_radius]);

		// Slot for bend in wrench
		translate(v=[0, -hex_size / 2, slot_bottom - 1.5 * hex_size])
			cube(size = [1.5 * hex_size, hex_size, 2 * hex_size]);

        // Wrench rotation slot
        translate(v=[0,0, slot_bottom])
        difference(){

            cylinder(h = hex_size+z_adjust, r1 = handle_radius, r2 = handle_radius);

            translate(v=[-handle_radius,0,0])
            cube(handle_radius);
            translate(v=[-handle_radius,-handle_radius,0])
            cube(handle_radius);
            translate(v=[0,-handle_radius,0])
            cube(handle_radius);
        }

// Bend rotation slot
        translate(v=[0, 0, slot_bottom - 1.5 * hex_size])
            difference(){
            cylinder(h=2*hex_size,r2=norm([1.5*hex_size,hex_size]), r1=hex_size);

            translate(v=[-2*hex_size,0,0])
            cube(2*hex_size);
            translate(v=[-2*hex_size,-2*hex_size,0])
            cube(2*hex_size);
            translate(v=[0,-2*hex_size,0])
            cube(2*hex_size);
            }
        rotate([0,0,90])
            translate(v=[0, -hex_size / 2, slot_bottom - 1.5 * hex_size])
                cube(size = [1.5 * hex_size, hex_size, 2 * hex_size]);

        // Lock slot
        rotate([0,0,90])
        translate(v=[0, -hex_size / 2, slot_bottom])
			cube(size = [handle_radius, hex_size, hex_size*2]);
        translate(v=[0, 0, slot_bottom+2*hex_size])
            rotate([-90,0,0])
                cylinder(h=handle_radius, d=hex_size);

    // for the next subtractions, an arbitrary parameter that doesn't have a good name
    x=handle_radius / 6.0;

    // Subtract a tourous to make it look like a screwdriver
    translate(v=[0,0, slot_bottom/2])
    rotate_extrude(convexity = 10)
            translate([handle_radius, 0, 0])
                circle(r =x);
    // the following extra tauri makes it look smooter, basically a fake, easier way of filleting. Values are arbitrary
    translate(v=[0,0, slot_bottom/2])
    rotate_extrude(convexity = 10)
            translate([handle_radius*1.085, 0, 0])
                circle(r =x*1.38);
    translate(v=[0,0, slot_bottom/2])
    rotate_extrude(convexity = 10)
            translate([handle_radius*1.15, 0, 0])
                circle(r =x*1.625);

	}
}

```


[User]
I'm looking to design a customizable S-hook for 3D printing. I've seen a simple version made from the letter "S", but I want more control over the shape and parameters.

I envision a hook defined by two curves, a top curve and a bottom curve, which are mirror images of each other. I want to be able to adjust:

1.  **Overall Length:** The total length of the hook from top to bottom.
2.  **Overall Width:** The total width of the hook at its widest point.
3.  **Thickness:** The thickness of the hook extrusion (i.e. how thick it is in the Z-direction)
4. **Curve Radius:** The radius of the bends in the curves. It should be the same for all of the bends.
5. **Center Vertical Offset:** How much the midpoint of the hook should be offset vertically. This could be useful for creating hooks with a different top and bottom shape.

I'd like the hook to be generated by extruding a 2D shape. I'd prefer a clean, smooth look. I'm not too concerned about the specific parameters of the curves themselves, but it would be nice to be able to adjust them easily through a few main parameters. Could you generate an OpenSCAD file for this? I'm not particular about specific libraries as long as the code is straightforward.

[Assistant]
s_hook.scad:
```
// Crafted by HarlemSquirrel
// harlemsquirrel@gmail.com

full_length = 80; // Length in mm
thickness = 5; // Thickness in mm

module s_hook() {
  linear_extrude(height=thickness, center=true)
  resize([0,full_length,0], auto=true)
  text("S", font="Nimbus Sans Narrow:style=Regular", halign="center", valign="center");
}

$fn=100;
translate([0,0,thickness/2])
s_hook();

```


[User]
Hi, I'm looking to design some storage boxes for my Hatchbox filament spools, and I think OpenSCAD is the right tool for the job. I have some measurements and ideas, and I'd like your help creating a parametric design that I can easily adjust later.

Basically, I want a cylindrical drawer that fits inside a standard Hatchbox spool. These spools have an outer diameter of about 200mm and an inner diameter of about 80mm, though these might vary slightly between spools, so I'd like them to be parameters. The height of the space where the filament goes is usually about 57mm, so that needs to be adjustable as well. The drawer itself will have walls and a bottom of a specific thickness that I'll call the "gauge."

For the drawer's hinges, I want to take advantage of the existing holes in the side of the spools. I'll be using 6-32 threaded rods as the hinge pins. I'd like to include cylinders on the drawer which will mate with these holes. I think I can figure out the exact diameter of the threaded rod hole through trial and error, but the general location of these hinge posts should be configurable. I think a parameter for the x position and a separate parameter for the y position of the center of the hole would work.

I want a "finger hole" cutout on the edge of the drawer to make it easier to pull out. This should be a cylinder, oriented so that the circle is on the edge of the cylinder, rather than the top. The location should be fixed at a specific x/y, but it should be at the top of the drawer.

I'm going to want to experiment with parameters like the outer and inner diameter of the drawer, the height of the drawer, the thickness of the walls, and the location of the hinges.

I'm not worried about any fancy appearance features. I need a design that is functional and printable.

I think I'll need at least one .scad file, and I'm not really sure what libraries I would need, but I think this is possible with just OpenSCAD's base functionality and a couple of boolean operations?

[Assistant]
hatchbox_box.scad:
```
inner_diameter = 80;
outer_diameter = 200;
height = 57;
gauge = 2;
hole_diameter = 4;
hole_x = 96;
hole_y = 5.5;
post_location = [hole_x, hole_y, gauge];

$fn = 100;

difference() {
    union() {
        // Make the box
        difference() {
            make_quarter(inner_diameter, outer_diameter, height, 0);
            translate([0, 0, gauge]) {
                make_quarter(inner_diameter+5, outer_diameter-5, height, gauge);
            }
        }

        // add the hinge casing
        translate(post_location) {
            cylinder(d=7.8, h=height-gauge);
        }
    }

    // make the hinge hole
    translate(post_location) {
        translate([0, 0, -4]) {
            // d=4 for #8, 3.5 for #6, although 4 works well for #6 on my setup
            cylinder(d=hole_diameter, h=height+10);
        }
    }

    // cutout a finger hole for opening the drawer
    translate([18, 100, height]) {
        rotate([90, 0, 0]) {
            cylinder(d=30, h=10);
        }
    }
}

module make_quarter(inner, outer, h, inset) {

difference() {
    cylinder(d=outer, h=h);
    translate([0,0,-1]) {
        cylinder(d=inner, h=h+2);
    }
    rotate([0, 0, 90]) {
        translate([-0.1 - inset, -0.1 - inset, -1]) {
            cube([150, 150, h+2]);
        }
    }
    rotate([0, 0, 180]) {
        translate([-0.1 - inset, -0.1 - inset, -1]) {
            cube([150, 150, h+2]);
        }
    }
    rotate([0, 0, 270]) {
        translate([-0.1 - inset, -0.1 - inset, -1]) {
            cube([150, 150, h+2]);
        }
    }
}
}
```


[User]
I'd like to design a custom car mount for my MINI Countryman, and I think OpenSCAD would be the perfect way to do it. I'm envisioning a mount that attaches to the back of the speedometer using existing screws. The mount needs to have a couple of arms that extend out from the attachment point, and then a spherical mount for a magnetic phone holder (like the one I linked: https://www.amazon.es/gp/product/B00ZR48COA ). I'd like the design to be fully parametric so I can adjust things like the arm length, the angle between the arms, and even include an optional cable holder.

Specifically, here's what I'm thinking:

*   **Attachment Base:** The base needs to be designed to be fixed to the speedometer back using existing screws. I think two mounting points will be enough, and the separation between these should be adjustable. It also needs a circular base and a sphere for the magnetic holder.
*   **Arms:** There should be two arms extending from the attachment base.
    *   The length of these arms should be adjustable.
    *   The angle between the arms needs to be configurable.
    *   The thickness and overall size of the arms should also be parametric.
*   **Mounting Sphere:** A sphere needs to be placed at the end of the mount for the magnetic phone holder to attach to. The diameter of this sphere should be adjustable.
*   **Optional Cable Holder:**
    *   I'd like to have an option to include a cable holder on one of the arms.
    *   The cable holder diameter should be adjustable based on the cable I'm using.
    *   The position of the cable holder relative to the mount base should also be adjustable.
*   **Other parameters:** I need to be able to control the diameter and height of the circular base and the diameter of the drilled holes.
*   **Libraries**: I don't think I need anything too fancy, just the standard OpenSCAD library should be fine.

I think this is a pretty straightforward design, I'd like to see the complete OpenSCAD code to make it easy to customize. Let me know if you need any more info. Thanks!

[Assistant]
MINICountrymanMount.scad:
```

/* [Support] */
// Length of the mount arm. Longer arms will produce more vibrations.
armLenght = 145; // [120:170]

// Mount direction
mountDir = 1; // [1:To the right, -1:To the left]
// Angle between arms. Best suit for me was 30º
armsAngle = 30; // [0:90]

// Include cable holder
cableHolder = 1; // [0:No, 1:Yes]

// Cable diameter
cableDiameter = 4; // [1:10]

// Separation between cable holder and mount support
holderSeparation = 60; //[10:150]

/* [Mount] */

// Mount base diameter
mountBaseDiam = 8; // [2:10]

// Mount base height
mountBaseHeight = 20; // [0:60]

// Mount sphere diameter
mountSphereDiam = 18; // [10:50]

/* [Hidden] */
width=30;
height=4;
corner=10;
len1=armLenght;
len2=95;

rad1=6;
rad2=7;
rad3=2;
h1=6;
h2=2;

// Separation between drills
dist1=75;

// Distance to end from mount base
dist2=10;
dist3=holderSeparation;
$fn=60;

radSupport=mountBaseDiam/2;
heightSupport=mountBaseHeight;
sphereRadius=mountSphereDiam/2;

ang=armsAngle*mountDir;

cR=1.5;
cabRad=cableDiameter/2;
cabLen=5;

rotate(a=[0, 0, (mountDir == 1 ? 0 : 180) + mountDir*30]) carMount();

module carMount() {
difference() {
union() {
sideA();
translate([len1-dist2, 0, height]) mount();
rotate(a=[0, 0, ang]) translate([-len2+width/2, 0, 0]) sideB();
    if (cableHolder==1) translate([len1-dist3, 0, height]) cableHolder();
}
rotate(a=[0, 0, ang]) translate([-len2+width/2, 0, 0]) drills();
}
}

module cableHolder() {
    translate([0, 0, cabRad+cR]) rotate(a=[90, -180, -mountDir*90])
    difference() {
        union() {
    cylinder(r=cabRad+cR, h=cabLen);
    translate([-cabRad-cR, 0, 0]) cube([cabRad+cR, cabRad+cR, cabLen]);
        }
    translate([0, 0, -1]){ cylinder(r=cabRad, h=cabLen+2);
    translate([0.5, 0.5, 0]) cube([cabRad+cR, cabRad+cR, cabLen+2]);}}
}

module sideA() {
hull() {
    cylinder(r=width/2, h=height);
    translate([len1-width/2, 0, 0]) cylinder(r=width/2, h=height);
}
}

module sideB() {
    hull() {
    cylinder(r=width/2, h=height);
    translate([(len2-width/2), 0, 0]) cylinder(r=width/2, h=height);
    }
    translate([-(width/2-10), 0, height]) cylinder(r=rad2, h=h1);
    translate([-(width/2-10)+dist1, 0, height]) cylinder(r=rad2, h=h1);
}

module drills() {
    translate([-(width/2-10), 0, -1]) cylinder(r=rad1, h=height+h1-h2+1);
    translate([-(width/2-10)+dist1, 0, -1]) cylinder(r=rad1, h=height+h1-h2+1);
    translate([-(width/2-10), 0, 0]) cylinder(r=rad3, h=height+h1+1);
    translate([-(width/2-10)+dist1, 0, 0]) cylinder(r=rad3, h=height+h1+1);
}

module mount() {
cylinder(r=radSupport, h=heightSupport);
translate([0, 0, heightSupport]) sphere(r=sphereRadius);
}
```


[User]
Hey, I'm looking to create a parametric dovetail joint model in OpenSCAD, but I want it to be a bit more sophisticated than a simple box joint. I'd like it to have a few customizable features, and I'd like to set up the parameters in a way that's easy to understand.

Essentially, I need a dovetail-like profile that I can extrude, and it will be used for both an inner and outer part. I want to control the basic dimensions of the profile, the taper of the extrusion, some hole patterns on both pieces, and stops for alignment.

Here’s a breakdown of the parameters I’m thinking of and how I’d like to group them:

**Profile Parameters:**

*   **Basic Width (A):** The main width of the dovetail profile.
*   **Basic Depth (B):** The main depth of the dovetail profile.
*   **Lip Width (C):** The width of the lip that extends from the main profile.
*  **Lip Slope (D):** The depth of the slope of the lip.
*   **Lip Shoulder (E):** The depth of the shoulder of the lip.
*   **Material Thickness (M):** The thickness of the material used.
*   **Clearance (O):** The gap between the inner and outer parts.
*   **Inner Radius (IR):** The radius of the inner corner fillets.
*   **Outer Radius (OR):** The radius of the outer corner fillets.
*  **Core Hollow (CH):** Boolean to determine if the core should be hollowed out.

**Taper Parameters:**

*   **Extrusion Height (H):** The height to extrude the dovetail profile.
*   **Taper A (AT):**  The width of the profile at the extrusion height - if 0 the profile has the same width as A
*   **Taper B (BT):** The depth of the profile at the extrusion height - if 0 the profile has the same depth as B.
*   **Taper Baseline Offset (TBO):** An offset for the starting point of the taper on the depth.

**Hole Pattern Parameters:**

*   **Plate1:** A list of 2D coordinates and radii defining the holes on the outer profile.  These can be individual holes or groups of holes (slots).
*   **Plate2:** A list of 2D coordinates and radii defining the holes on the inner profile. These can be individual holes or groups of holes (slots).
*   **U1, U2, U3:** User-defined constants that can be used in expressions for hole placement.

**Stop Parameters:**

*   **Inner Bottom Stop (S11):** [Length, Height, Width] defining the inner bottom stop feature.
*   **Inner Top Stop (S12):** [Length, Height, Width] defining the inner top stop feature.
*  **Outer Bottom Stop (S21):** [Length, Height, Width] defining the outer bottom stop feature.
*  **Outer Top Stop (S22):** [Length, Height, Width] defining the outer top stop feature.

**Output Control:**

*   **Make:** An option to generate "both" parts, "inner" part only or "outer" part only.
*   **Detail ($fn):** Sets the number of facets in circles.

I want to have "view" variables, and if view is enabled I just want to see the model with dimensions, no actual rendering. So, each "view" variable should show just the dimensions. The "profile" view should show the A, B, C, D, and E dimensions.  The "taper" view should show the A and B parameters after taper, and include a representation of the profile. The "hole" view should show the outline of both pieces with holes cut out in red and blue respectively. The "stop" view should show the outline of both pieces with the stop locations shown. I will use a “make” parameter to select what to output or if views are active. I would like that each view is controlled by a  `viewX` variable that can be set to 0 or 1. 0 will active the view, 1 will disable it.

I'm okay with having multiple `.scad` files if that helps organize things, but ultimately, I want one set of parameters to control everything. I don’t have any preference for libraries, but if there are any that would simplify this, I'd be happy to use them.

Is this something that you could help me with?

[Assistant]
dovetail170217.scad:
```
/*[Profile]*/
//[Modify ----------------------------------------> Done] v >
 view1 = 0; //[0:1]
// Basic width
A = 50;
// Basic depth
B = 15;
// Lip with
C = 6;
//Lip slope
D = 10;
//lip Sholder
E = 5;
//Material thickness
M = 5;
// Clerance
O = 1;
// Inner Radius
IR = 0.25;
// Outer Radius
OR = 1;
// core hollow
CH=1;//[1,0]
/*[Taper]*/

//[Modify ----------------------------------------> Done] v >
 view2 = 0; //[0:1]
// Extrusion Height
H = 100;
// Taper A, 0=A
AT =0;

// Taper B ,0=B
BT = 0;

// Taper Baseline Offset
TBO=0;
B2O =B+E+D+TBO;

/*[Hole pattern]*/
//[Modify ----------------------------------------> Done] v >
 view3 = 0; //[0:1]
// (Red) List of holes work like this - A slot is holes grouped inside a extra bracket - [  [ [ X,Y,R ] , [ X,Y,R ] ]  , [ X,Y,R ] , [ X,Y,R ] ]                     Here the vertical centerline is x=0
Plate1 = [  [    [0, 80, 3],    [0, 20, 3]  ],  [15, 20, 4],  [-15, 20, 4],  [15, 80, 4],  [-15, 80, 4],  [10, 50, 3],  [-10, 50, 3]];
// (Blue) A B C D E H, all defined values can be used for advanced expressions,  for example [[0,H/2,2.5]] is a single hole at half height.  And [[0,0,0]] is no hole at all.  try [  [    [-A*0.3, H*0.8, 3],    [A*0.3, H*0.2, 3]  ],[    [A*0.3, H*0.8, 3],    [-A*0.3, H*0.2, 3]  ]]
Plate2 = [  [    [0, 80, 3],    [0, 20, 3]  ],  [10, 50, 3],  [-10, 50, 3]];
// Here are some User defined constants in addition
U1=0;
//User defined constants
U2=0;
//User defined constants
U3=0;
/*[Stops]*/
//[Modify ----------------------------------------> Done] v >
 view4 = 0; //[0:1]

//inner bottom [L,H,W]
S11=[50,10,0];
//inner top  [L,H,W]
S12=[50,20,3];
//outer bottom [L,H,W]
S21=[55,20,3];
//outer top [L,H,W]
S22=[50,2,0];

/*[Parts]*/
//parts 0=both ,1=inner, 2=outer
make = 0; //[1,2,0]
// Detail
$fn = 30;
/*[hidden]*/
B2 = BT == 0 ? B : BT;
A2 = AT == 0 ? A : AT;
Go();
module Go() {
  // menu1
  if (view1 == 0) {
    rr() corepack();
    rr() encore();
    translate([0, 0, 0.1]) {
      hdim(-A * 0.5, B + D + E, A, "A");
      hdim(-A * 0.5, B + D + E, C, "C");
      vdim(-A * 0.5, D + E, B, "B");
      vdim(-A * 0.5, E, D, "D");
      vdim(-A * 0.5, 0, E, "E");
    }
  }
  // menu2
  else if (view2 == 0) {
    translate([0, 0, H]) {
      hdim(-A2 * 0.5, (-B2O + B + D + E) * (B2 / B), A2, "AT");
      vdim(-A2 * 0.5, (-B2O + D + E) * (B2 / B), B2, "BT");
      color("White") translate([-A, 0]) square([A * 4, 0.5]);
    }
    linear_extrude( H, convexity = 20,scale = ([A2 / A, B2/B]), slices = 1) translate([0, -B2O, 0]) {
      rr() difference() {
        corepack();
        if (CH==1) offset(r = -M) core(B+E+D);
      }
    }
    translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
    linear_extrude(H,convexity = 20,  scale = ([A2 / A,  B2/B]), slices = 1) translate([0, -B2O, 0]) {
      rr() encore();
    }
  }
  // menu3
  else if (view3 == 0) {   difference() {
union(){
  color("Red")    translate  ([-(A+M*2+O*2)*0.5,0,0])  cube([A+M*2+O*2,M,H]);
   color("Blue")     translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
     translate  ([-A*0.5,0,0])   cube([A ,M,H]);
}
   hol();
  }}
  else if (view4 == 0) {
rotate([90,0,0]) difference() {
union(){
    translate  ([-(A+M*2+O*2)*0.5,0,0])  cube([A+M*2+O*2,M,H]);
    translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
     translate  ([-A*0.5,0,0])   cube([A ,M,H]);

translate ([-S11[0]/2,0,0])cube(S11+[0,M,0]);

translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
translate ([-S21[0]/2,0,0])cube(S21+[0,M,0]);

translate([0,0,H-S12[2]])
translate ([-S12[0]/2,0,0])cube(S12+[0,M,0]);

translate([0,0,H-S12[2]])
translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
translate ([-S22[0]/2,0,0])cube(S22+[0,M,0]);

}
  hol();
    }
  }
  //output menu
  else {
  render(convexity = 20)  difference() {
    union(){  extr();
 if (make == 0 || make == 1) {
translate ([-S11[0]/2,-(B+E+D),0])cube(S11+[0,M,0]);
translate([0,0,H-S12[2]])
translate ([-S12[0]/2,-(B+E+D),0])cube(S12+[0,M,0]);
}
 if (make == 0 || make == 2) {

translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
translate ([-S21[0]/2,M,0])mirror([0,1,0])cube(S21+[0,M,0]);
translate([0,0,H-S12[2]])
translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
translate ([-S22[0]/2,M,0])mirror([0,1,0])cube(S22+[0,M,0]);
}
}

      hol();
    }
  }
}
module hol() {
  if (make == 0 || make == 2) {
    translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
    translate([0, -(B + D + E + M) * 0.5])
    rotate([90, 0, 0])
    linear_extrude( (B + D + E + M) * 2,convexity = 20, center = true)
    makeplate(Plate1, 0);
  }
  if (make == 0 || make == 1) {
    translate([0, -(B + D + E + M) * 0.5])
    rotate([90, 0, 0])
    linear_extrude( (B + D + E + M) * 2,convexity = 20, center = true)
    makeplate(Plate2, 0);
  }
}
module extr() {
  if (make == 0 || make == 1) {
    linear_extrude( H,convexity = 20, scale = ([A2 / A,  B2/B]), slices = 1) translate([0, -B2O, 0]) {
      intersection() {
        rr() difference() {
          corepack();
          offset(r = -M) core();
        }* translate([0, B2O]) rotate([0, 0, F]) translate([-(A + M * 2) * 0.5, 0]) square([A + M * 2, B * 2 + M]);;
      }
    }
  }
  if (make == 0 || make == 2) {
    translate([max(A2 * 1.5, A * 1.5) + M * 2, 0])
    linear_extrude( H,convexity = 20, scale = ([A2 / A,  B2/B]), slices = 1) translate([0, -B2O, 0]) {
      intersection() {
        rr() encore();* translate([0, B2O]) rotate([0, 0, F]) translate([-(A + M * 2) * 0.5, 0]) square([A + M * 2, B * 2 + M]);
      }
    }
  }
}
module rr(r1 = 0.5, r2 = 0.5) {
  offset(r = IR) offset(r = -(IR + OR)) offset(r = OR) children();
}

// core hollow
module corepack() {
  difference() {
    core();
  if (CH==1)  offset(r = -M) core(B + E + D);
  }
}
// outer hull
module encore() {
  difference() {
    intersection() {
      translate([-(A + M * 2) * 0.5, 0]) square([A + M * 2, B + D + E + M]);
      offset(r = O + M) core();
    }
    offset(r = O) core();
  }
}
// center core
module core(x = 0) {
  hull() {
    translate([-A * 0.5, D + E]) square([A, B + x]);
    translate([-(A - C * 2) * 0.5, E]) square([A - C * 2, D]);
  }
  translate([-(A - C * 2) * 0.5, 0]) square([A - C * 2, E]);
}
// dim lines
module hdim(x, y, d, label, lw = 0.5) {
  size = max(2, d / 10);
  d3 = min((d - size) / 2, d * 0.3);
  linel = max(20, d * 0.381) + d * 0.2;
  tline = y + max(20 * 0.95, (d * 0.381 * 0.95)) + d * 0.2;
  color("Black") translate([x, y]) square([lw, linel]);
  color("Black") translate([x + d, y]) square([lw, linel]);
  color("Black") translate([x, tline]) square([d3, lw]);
  color("Black") translate([x + d - d3, tline]) square([d3, lw]);
  color("Blue") translate([x + d * 0.5, tline]) text(str(label), size, valign = "center", halign = "center");
}
module vdim(x, y, d, label, lw = 0.5) {
  size = max(2, d / 10);
  d3 = min((d - size) / 2, d * 0.3);
  linel = max(20, d * 0.381) + d * 0.2;
  tline = max(20 * 0.95, (d * 0.381 * 0.95)) + d * 0.2;
  color("Black") translate([x - linel, y]) square([linel, lw]);
  color("Black") translate([x - linel, y + d]) square([linel, lw]);
  color("Black") translate([x - tline, y]) square([lw, d3]);
  color("Black") translate([x - tline, y + d - d3]) square([lw, d3]);
  color("Red") translate([x - tline, y + d * 0.5, ]) text(str(label), size, valign = "center", halign = "center");
}

function rnd(a = 0, b = 1) = (rands(min(a, b), max(a, b), 1)[0]);
//recursive plate parser
module makeplate(P, a) {
  for (i = [0: len(P) - 1]) {
    if (len(P[i][0]) == undef) {
      translate([P[i][0], P[i][1], 0]) circle(P[i][2] + a);
    } else {
      hull() {
        for (j = [0: len(P[i]) - 1]) {
          translate([P[i][j][0], P[i][j][1], 0]) circle(P[i][j][2] + a);
        }
      }
    }
  }
}
```


[User]
Hi there, I'm looking to create a parametric OpenSCAD model for a rising dovetail joint, and I'd like your help designing the files. I've seen some examples, but I want something that's fully customizable.

Basically, I need to generate two parts: a male part with a tongue, and a female part with a corresponding groove. The tongue should rise at an angle, so it's not a straight dovetail. I need to control a bunch of parameters, like:

*   **Part Type:**  I'd like to be able to choose if I generate the male part, the female part, or both together.
*   **Number of Joints:** Eventually, I'd like to be able to make a single block with multiple dovetail joints along its length, but let's start with just one for now.
*   **Tongue Width:** The maximum width of the tongue at its widest point.
*   **Tongue Length:** The horizontal length of the tongue.
*   **Block Height:** The total height of the block that the tongue is attached to.
*   **Tongue Base Height:** The height from the bottom of the block to the bottom of the tongue.
*  **Tongue End Height:** The height of the end of the tongue from the base of the block.
*   **Tongue Angle:** The angle at the base of the tongue. This affects the shape of the dovetail.
*   **Male Block Width:** How much wider the male block is than the tongue itself, for stability.
*   **Female Block Width:** How much wider the female block is than the tongue itself.
*   **Male Block Length:** The total length of the male block.
*  **Female Block Depth:** The depth of the female block beyond the length of the tongue.
*   **Tolerance:**  A tolerance gap for a good fit, with half the tolerance removed from each part. This is important for 3D printing to have a smooth sliding fit.

I'm hoping you can use modules for the tongue, groove, male block and female block. This should simplify things and make it easier to modify later. I'm also thinking that this could be done without relying on any external libraries.

It would be great if you could provide the code for the whole thing, including all calculations. Thanks!

[Assistant]
Dovetail_joint_-male_and_female_v1.3.scad:
```
/*
Update 3/17/17 - converted the tongue, groove, male block, and female block into modules. This greatly simplifies the program and eliminated repeated code. Next thinking about adding ability to add multiple tongues and grooves on a single block

Update 3/8/17 - added tolerance gap around tongue and female part, with 1/2 the tolerance removed from both parts. Next thinking about making the male and female tongue parts into modules so they can be placed in other locations, or in multiple locations...
*/

//////////////////User inputed variable////////////////////////////////////////////////////////////

//male or female part
partType="Both";//[Male,Female,Both]

//Number of tongues or grooves - not working yet...
Number_of_Joints=1;//[1,2]

//This is the max width of the tongue
width=6;

//This is the length of the tongue
Tongue_Length=6;

//This is the height of the block that the tongue is attached to
height=4;

//This is the height from the bottom of the block to the bottom of the tongue
height_2=1;

//this is the height of the end of the tongue (Height - Height_2 > height_3 > 0)
height_3=1;

//angle of tongue incut at base
angle =20;

//Additional width of male block, amount wider than tongue
Male_Block_Width = 0;

//Additional width of female block, amount wider than tongue
Female_Block_Width = 10;

//Length of block the tongue is attached to
Male_Block_Length = 20;

//Depth of Female Block (>=0)
Block_Depth = 0;

//Tolerance Gap to ensure a good fit (0.1 a good starting point assuming exporting using mm) (must be >0 for equations below to be defined
Tolerance=0.1;

///////////////////////////////Calculated variables////////////////////////////////////////////////////

length=Tongue_Length+0.5*Tolerance;  //Tongue length adjusted to include tolerance

height_4 = height-height_2-height_3;  //height of base of tongue

Tongue_Rise_Angle = atan(height_4/length); //angle at which tongue rises from horizontal

z = Tolerance/(2*cos(Tongue_Rise_Angle)); //height of tolerance corrected for angle the tongues rises at

//////////////////////////////Code for generating dovetails based on inputted variables//////////////////////////

//acknowledged problem with displaying in preview mode because difference function
//as written currently involves coincident faces. Because the F6
//render is not too slow, I'm not fixing it for now...

if(partType=="Male"){
        tongue();
        maleBlock();
}

if (partType=="Female"){
        difference(){ //female block with tongue and 1/2 tolerance cut out on sides and bottom
          femaleBlock();
          groove();
    }
}
if(partType=="Both") {
    tongue();
    maleBlock();
    difference(){ //female block with tongue and 1/2 tolerance cut out on sides and bottom
          femaleBlock();
          groove();
    }
}

/////////////////////////////////MODULES/////////////////////////////////////////////////
module tongue(){
    color([1,0,0])
difference(){
    polyhedron(  //tongue polyhedron
        points=[[width-((height-height_2)*tan(angle)),0,height],
                [width,0,height_2],
                [0,0,height_2],
                [(height-height_2)*tan(angle),0,height],
                [width-(height_3)*tan(angle),length,height],
                [width,length,(height-height_3)],
                [0,length,height-height_3],
                [(height_3)*tan(angle),length,height] ],
        faces=[ [0,1,2],[0,2,3], //base face
                [0,4,1],[1,4,5], //side 1
                [0,3,4],[3,7,4], //top
                [2,7,3],[2,6,7], //side 2
                [1,5,2],[2,5,6], //bottom
                [6,5,4],[4,7,6]] //end
    );

   polyhedron(   //this shaves off the half the tolerance thickness on one side of tongue
        points=[[(height-height_2)*tan(angle),0,height],                             //point 0
                [0,0,height_2],                                                      //point 1
                [0.5*Tolerance*sin(90-angle),0,height_2],                            //point 2
                [0.5*Tolerance*sin(90-angle)+(height-height_2)*tan(angle),0,height], //point 3
                [height_3*tan(angle),length,height],                                 //point 4
                [0,length, height -height_3],                                        //point 5
                [0.5*Tolerance*sin(90-angle),length, height-height_3],               //point 6
                [0.5*Tolerance*sin(90-angle)+height_3*tan(angle), length, height]],  //point 7
        faces=[ [0,3,2,1], //back
                [0,4,7,3], //top
                [0,1,5,4], //side 1
                [1,2,6,5], //bottom
                [3,7,6,2], //side 2
                [4,5,6,7]] //front
    );

       polyhedron(   //this shaves off half the tolerance thickness on other side of tongue
        points=[[width-(height-height_2)*tan(angle),0,height],                             //point 0
                [width,0,height_2],                                                        //point 1
                [width-0.5*Tolerance*sin(90-angle),0,height_2],                            //point 2
                [width-(height-height_2)*tan(angle)-0.5*Tolerance*sin(90-angle),0,height], //point 3
                [width-height_3*tan(angle),length,height],                                 //point 4
                [width,length, height -height_3],                                          //point 5
                [width-0.5*Tolerance*sin(90-angle),length, height-height_3],               //point 6
                [width-height_3*tan(angle)-0.5*Tolerance*sin(90-angle), length, height]],  //point 7
        faces=[ [0,1,2,3], //back
                [0,3,7,4], //top
                [0,4,5,1], //side 1
                [1,5,6,2], //bottom
                [3,2,6,7], //side 2
                [4,7,6,5]] //front
    );

       polyhedron(   //this shaves off the tolerance half the thickness on the bottom of the tongue
        points=[[width,0,height_2],                                                        //point 0
                [0,0,height_2],                                                            //point 1
                [z*tan(angle),0,height_2+z],                                               //point 2
                [width-z*tan(angle),0,height_2+z],                                         //point 3
                [width,length,height-height_3],                                            //point 4
                [0,length,height-height_3],                                                //point 5
                [z*tan(angle),length,height-height_3+z],                                   //point 6
                [width-z*tan(angle),length,height-height_3+z]],                            //point 7
        faces=[ [0,1,2,3], //back
                [2,6,7,3], //top
                [1,5,6,2], //side 1
                [0,4,5,1], //bottom
                [7,4,0,3], //side 2
                [4,7,6,5]] //front

        );
    }
}

module maleBlock(){
color([1,0,0])translate([-Male_Block_Width/2,-Male_Block_Length,0]){cube([width+Male_Block_Width, Male_Block_Length, height]);}
}
module groove(){
translate([-(Female_Block_Width)/2,0,0]){cube([width+Female_Block_Width, Tolerance/2,height]);}
          polyhedron( //cuts out tongue on female block
               points=[ [width-((height-height_2)*tan(angle)),0,height],    //point 0
                        [width,0,height_2],                                 //point 1
                        [0,0,height_2],                                     //point 2
                        [(height-height_2)*tan(angle),0,height],            //point 3
                        [width-(height_3)*tan(angle),length,height],        //point 4
                        [width,length,(height-height_3)],                   //point 5
                        [0,length,height-height_3],                         //point 6
                        [(height_3)*tan(angle),length,height] ],            //point 7
               faces=[ [0,1,2],[0,2,3],//base face
                       [0,4,1],[1,4,5], //side 1
                       [0,3,4],[3,7,4], //top
                       [2,7,3],[2,6,7], //side 2
                       [1,5,2],[2,5,6], //bottom
                       [6,5,4],[4,7,6]],  //end
               convexity=10);

          translate([0,0,height]){linear_extrude(height=1){polygon(  //cuts out extra material above tongue, may be unnecessary
               points=[ [width-((height-height_2)*tan(angle)),0],
                        [(height-height_2)*tan(angle),0],
                        [(height_3)*tan(angle),length],
                        [width-(height_3)*tan(angle),length]]);
          }}

   polyhedron(   //this shaves off half the tolerance thickness on one side of tongue
        points=[[(height-height_2)*tan(angle),0,height],                             //point 0
                [0,0,height_2],                                                      //point 1
                [-0.5*Tolerance*sin(90-angle),0,height_2],                            //point 2
                [-0.5*Tolerance*sin(90-angle)+(height-height_2)*tan(angle),0,height], //point 3
                [height_3*tan(angle),length,height],                                 //point 4
                [0,length, height -height_3],                                        //point 5
                [-0.5*Tolerance*sin(90-angle),length, height-height_3],               //point 6
                [-0.5*Tolerance*sin(90-angle)+height_3*tan(angle), length, height]],  //point 7
        faces=[ [0,3,2,1], //back
                [0,4,7,3], //top
                [0,1,5,4], //side 1
                [1,2,6,5], //bottom
                [3,7,6,2], //side 2
                [4,5,6,7]] //front
       );

   polyhedron(   //this shaves off half the tolerance thickness on other side of tongue
        points=[[width-(height-height_2)*tan(angle),0,height],                             //point 0
                [width,0,height_2],                                                        //point 1
                [width+0.5*Tolerance*sin(90-angle),0,height_2],                            //point 2
                [width-(height-height_2)*tan(angle)+0.5*Tolerance*sin(90-angle),0,height], //point 3
                [width-height_3*tan(angle),length,height],                                 //point 4
                [width,length, height -height_3],                                          //point 5
                [width+0.5*Tolerance*sin(90-angle),length, height-height_3],               //point 6
                [width-height_3*tan(angle)+0.5*Tolerance*sin(90-angle), length, height]],  //point 7
        faces=[ [0,1,2,3], //back
                [0,3,7,4], //top
                [0,4,5,1], //side 1
                [1,5,6,2], //bottom
                [3,2,6,7], //side 2
                [4,7,6,5]] //front
        );

       polyhedron(   //this shaves off half the tolerance thickness on the bottom of the tongue
        points=[[width+Tolerance/2,0,height_2],                               //point 0
                [-Tolerance/2,0,height_2],                                    //point 1
                [-Tolerance/2+z*tan(angle),0,height_2+z],                     //point 2
                [Tolerance/2+width-z*tan(angle),0,height_2+z],                //point 3
                [width+Tolerance/2,length,height-height_3],                   //point 4
                [-Tolerance/2,length,height-height_3],                        //point 5
                [-Tolerance/2+z*tan(angle),length,height-height_3+z],         //point 6
                [width-z*tan(angle)+Tolerance/2,length,height-height_3+z]],   //point 7
        faces=[ [0,1,2,3], //back
                [2,6,7,3], //top
                [1,5,6,2], //side 1
                [0,4,5,1], //bottom
                [7,4,0,3], //side 2
                [4,7,6,5]] //front
    );
}
module femaleBlock(){
translate([-(Female_Block_Width)/2,0,0]){cube([width+Female_Block_Width, length+Block_Depth,height]);}
}
```


[User]
I need to generate a customizable D-ring mounting bracket for furniture, and I'd like it to be parametric so I can adjust it easily. I want something similar to the design described in the provided description and SCAD file, but I don't want to rely on that code specifically since it's noted as an early version.

Here are the key features I need:

*   **D-Ring Mount:** The bracket should have a cylindrical channel designed to accept a D-ring, with adjustable inner (ID) and outer diameters (OD), as well as length.
*   **Flat Mounting Plates:**  The bracket should include two flat, circular plates for mounting to a surface. These will be on either side of the cylindrical channel and should be configurable for thickness and distance from each other.
*   **Mounting Holes:** The mounting plates need to have drilled holes for screws. I need to be able to specify the center-to-center distance between these holes, their diameter, and the counterbore/head diameter and depth (inset). It should be able to disable the counterbore if it's not needed.
*   **Material:** I don't need to specify a specific material for the model, since I'm just generating the .scad for printing.

Basically, I want a procedural design similar to the one provided, but I need a fresh implementation. I'm thinking I want to use BOSL2 library, so I can make sure it's compatible.

[Assistant]
d_ring.scad:
```
/*
*   D Ring mounting bracket.
*   CudaTox, http://cudatox.ca/l/
*   @cudatox
*
*   Feb 17, 2017
*
*   A simple, procedural mounting bracket that can be used to affix a D Ring to many
*   different surfaces.
*
*   This software and 3D model(s) are experimental and are provided for educational
*   purposes only.
*
*   Use of this software, any of its derivatives, or use of any of the models or
*   parts provided with or created using this software is done at your own risk.
*
*   DO NOT use this part for securing loads. DO NOT use this part in applications
*   that may result in property damage, injury or death. NOT FOR CLIMBING USE.
*
*/

OD = 15;                        //Diameter of the outer cylindrical part of the bracket.
                                //This should be larger than ID

ID = 3.5;                       //Inner diameter of the bracket

length = 21;                    //width of the bracket, this should be smaller
                                //than the width of the D ring.

thickness = 6;                  //Thickness of the flat parts of the bracket

drill_centers = 20;             //Distance between the mounting holes

drill_dia = 4.6;                //Diameter of the mounting holes

head_dia = 12;                  //Cutaway for the head of the screw or washer. Zero to disable.

head_inset = 0.1;               //Inset distance for the head of the screw,
                                //if head cutaway enabled.

$fn = 64;                       //Resolution

difference(){

    union(){
        hull(){
            translate([0,ID/2,0])
                cylinder(length, OD/2, OD/2,  true);
            translate([0,-ID/2,0])
                cylinder(length, OD/2, OD/2,  true);
        }
        rotate([90,0,0])
            difference(){

                hull(){
                    translate([-drill_centers/2,0,0])
                        cylinder(thickness * 2, length/2, length/2, true);
                    translate([drill_centers/2,0,0])
                        cylinder(thickness * 2, length/2, length/2, true);
                }

                union(){
                    translate([-drill_centers/2,0,0])
                        cylinder(thickness * 2, drill_dia/2, drill_dia/2, true);
                    translate([drill_centers/2,0,0])
                        cylinder(thickness * 2, drill_dia/2, drill_dia/2, true);
                }
            }
    }

    union(){
        //Cuts with a small factor added to avoid manifold issues.
        hull(){
        translate([0,ID/2,0])
            cylinder(length + 0.1, ID/2, ID/2, true);
        translate([0,-ID/2,0])
            cylinder(length + 0.1, ID/2, ID/2, true);
        }

        rotate([-90,0,0]) translate([0,0,thickness-head_inset])
        if (head_dia > 0){
            translate([-drill_centers/2,0,0])
                cylinder(thickness * 2, head_dia/2, head_dia/2, false);
            translate([drill_centers/2,0,0])
                cylinder(thickness * 2, head_dia/2, head_dia/2, false);
        }

        translate([0,-max(OD, thickness)/2,0])
            cube([drill_centers + 2 * length, max(OD, thickness) + 0.1, length + 0.1], true);
    }

}
```


[User]
I'd like to create a design for a fidget toy that consists of interlocked rings. The basic structure is a series of tori (or ring shapes) that are linked together. Each ring should have a consistent width and height, and they should be spaced a consistent distance apart.

The design should be parametric so I can easily adjust the following:

*   **start**: The radius of the innermost ring.
*   **width**: The width of each ring (the difference between the inner and outer radius)
*   **height**: The vertical height of the ring.
*   **count**: The number of rings in the series.
*   **spacing**: The distance between the rings.
*   **faces**: The number of faces used to create the sphere used in the ring creation (this affects smoothness).

Each ring should be created by taking a difference between two "cropped" spheres to produce a torus-like shape. The cropping will make sure they are flat at the top and bottom, producing a shape with a consistent height.

Could you please generate the necessary OpenSCAD file(s) to create this design, making use of standard OpenSCAD features? I don't need any external libraries for this one.

[Assistant]
InterlockedRings.scad:
```
start = 8;
width = 5;
height = 15;
count = 3;
spacing = 0.25;
faces = 100;  // high number makes the piece smoother, but makes rendering very slow.

rings(start, width, height, count, spacing);

module rings(start, width, height, count, spacing) {
    for (i = [1 : count]) {
        ring(start + (width + spacing) * i, width, height);
    }
}

module ring(radius, width, height) {
    difference() {
        cropped_sphere(radius, height);
        cropped_sphere(radius - width, height);
    }
}

module cropped_sphere(radius, height) {
    difference() {
        sphere(r=radius, $fn=faces);
        translate([0, 0, radius + height/2]) {
            cube([2*radius, 2*radius, 2*radius], center=true);
        }
        translate([0, 0, -(radius + height/2)]) {
            cube([2*radius, 2*radius, 2*radius], center=true);
        }
    }
}
```


[User]
I need an OpenSCAD design for a cable tag. It should be parametric, so I can adjust the size for different cables and labels.

Here's what I'm envisioning:

The tag wraps around the cable, creating a ring shape. There should be a small gap to allow it to snap onto the cable. This gap shouldn't be too big, maybe around 15% of the cable's diameter, so the tag is secure.

The tag also needs a flat, rectangular area on one side where I can put some text. This area should be slightly longer than the diameter of the wrapped tag. The text should be engraved into the surface.

I'd like to control the following parameters:

*   `cable_diameter`: The diameter of the cable the tag will wrap around.
*   `height`: The overall height of the tag (how tall it is when you look at it from the side).
*   `string`: The text that will be on the tag.
*   `tag_width`: The width of the rectangular text area.
*   `thickness`: The thickness of the tag material.
*   `gap_ratio`: The ratio of the cable diameter that should be used for the gap.
*   `hook_length`: The length of the hook (the little piece that helps it snap around the cable).
*    `text_height_ratio`: The height of the engraved text, expressed as a ratio of the tag's overall height.

I'd like to use the built-in `text()` module with a bold sans-serif font. I'd also like to ensure that the design doesn't get too blocky by using the `minkowski()` function to round the edges.

Can you generate an OpenSCAD file (or files) for this design? I don't need to use any special libraries, just the standard OpenSCAD functions.

[Assistant]
cable_tag.scad:
```

cable_diameter = 6;		// [1:0.5:20]
height = 7;				// [5:1:30]
string = "Text";
tag_width = 20;			// [10:1:50]

/* [Extra] */

thickness = 1.8;			// [0.5:0.1:3]
gap_ratio = 0.85;		// [0.5:0.025:0.95]
hook_length = 3;		// [0:1:10]
text_height_ratio = 0.8;// [0.5:0.1:1]

/* [Hidden] */

$fn = 32;
e = 0.01;

difference()
{
	diam = cable_diameter + thickness;
	minkowski()
	{
		linear_extrude(height=e)
		{
			union()
			{
				difference()
				{
					circle(d=diam);
					circle(d=diam-e);
					translate([0, -diam/2+e]) square([diam/2+e, diam * gap_ratio]);
				}
				translate([0, -diam/2]) square([tag_width, e]);
				hookY = (gap_ratio-0.5)*2;
				hookX = sqrt(1-hookY*hookY);
				polygon(points = [diam/2 * [hookX, hookY], (diam/2 + hook_length) * [hookX, hookY], diam/2 * [hookX, hookY+e]]);

			}
		}

		cylinder(height, d=thickness);
	}

	translate([0, -diam/2, height * (1-text_height_ratio)/2]) rotate([90, 0, 0]) linear_extrude(height = thickness) text(string, font="Liberation Sans:style=Bold", size = height * text_height_ratio);
}

```