[User]
Hey, I'm looking for a way to generate a customizable sanding stick with printable screws, kind of like the one described on Thingiverse by mightynozzle. It looks like a pretty cool tool.

I need the design to be fully parametric, so I can change the dimensions, end styles, screw size, etc. I'd like to have the following parameters exposed:

*   **Sanding Stick Dimensions:**
    *   `stick_width_in_millimeter`:  The width of the sanding stick itself, as well as the width of the sanding paper strip.
    *   `base_height_in_millimeter`: The overall height of the stick. Note, this value also influences the width of the wedge ends, as they can be no higher than the base.
    *   `base_length_in_millimeter`: The main length of the sanding stick, not including the ends.

*   **End Style Options:**
    *   `end_1_option`: Dropdown menu to select the style of the first end: "none", "round", or "wedge".
    *   `end_1_height`: Dropdown menu to choose whether the end uses the `base_height` or half of it ("half_base_height").
    *   `end_1_wedge_angle`:  Angle for the wedge end in degrees. This only appears if `end_1_option` is set to "wedge".
    *   `end_1_wedge_round_tip_diameter_in_millimeter`: Diameter of a rounded tip for the wedge, if desired. This is only used for the "wedge" style.
    *    `end_2_option`: Dropdown menu to select the style of the second end: "none", "round", or "wedge".
     *   `end_2_height`: Dropdown menu to choose whether the end uses the `base_height` or half of it ("half_base_height").
    *   `end_2_wedge_angle`: Angle for the wedge end in degrees. This only appears if `end_2_option` is set to "wedge".
    *   `end_2_wedge_round_tip_diameter_in_millimeter`: Diameter of a rounded tip for the wedge, if desired. This is only used for the "wedge" style.

*   **Screw Settings (Advanced):**
    *   `screw_thread_dia_in_millimeter`: Thread diameter of the screws.
    *   `screw_head_dia_in_millimeter`: Maximum head diameter of the screws.
    *   `screw_thread_hole_dia_in_millimeter`: Diameter of the threaded hole in the bottom part of the stick. Make sure this is a bit bigger than the screw thread diameter for tolerance (maybe +0.5mm to +0.8mm).
    *   `screw_hole_dia_in_millimeter`: Diameter of the clearance hole in the top part of the stick. Also needs to be larger than the screw thread diameter for tolerance.
    *   `screw_head_space_in_millimeter`: How much space the top part of the stick should have to accommodate the screw head. This should probably be greater than the screw head diameter.
     *   `screw_head_teeth`: Number of "teeth" for the screw head to help grip the bottom part of the stick.
    *   `extra_screw_head_height_in_millimeter`: An option to add extra height to the screw head for easier gripping.
    *   `max_thread_height_in_millimeter`: Maximum height of the thread on the screw, and the corresponding threaded portion of the bottom part of the sanding stick.

*   **Part Selection:**
    *  `part`: Dropdown to choose which parts to generate, with options: "all_parts__", "screws__", "bottom_part__", and "top_part__".

I'm hoping to get a separate STL for each of the parts (bottom, top, and screws). I imagine that you will need to use the `polyScrewThread_r1.scad` code provided as a module to generate the threads.

I would also like each of the parts to have different colors, which I think can be done using the `color()` module in OpenSCAD.

Could you please generate the OpenSCAD files for me?

[Assistant]
customizable_sanding_stick.scad:
```
/*
 * Customizable Sanding Stick - https://www.thingiverse.com/thing:2404850
 * by Dennis Hofmann - https://www.thingiverse.com/mightynozzle/about
 * created 2017-08-08
 * version v1.3
 *
 * Changelog
 * --------------
 * v1.3 - 2017-08-08:
 *  - [feature] parts will be generated in separate stl-Files additionally.
 * v1.2 - 2017-07-31:
 *  - [fix] reduce the tolerance of the threaded hole. If you have problems, to insert the screw in, you can change the tolerance in the Screw Settings (Advanced!) -> Screw Thread Hole Dia In Millimeter.
 *  - [feature] parameter to add extra height of the screws head
 * v1.1 - 2017-06-27:
 *  - [feature] added color
 *  - [cosmetic] updated description for screw settings
 * v1.0 - 2017-06-26:
 *  - initial design
 * --------------
 *
 * This work is licensed under the Creative Commons - Attribution - Non-Commercial ShareAlike license.
 * https://creativecommons.org/licenses/by-nc-sa/3.0/
 */

 // Parameter Section //
//-------------------//

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

/* [Sanding Stick Settings] */

// Choose, which part you want to see!
part = "all_parts__";  //[all_parts__:All Parts,screws__:Screws,bottom_part__:Bottom,top_part__:Top]

// The width of the Sanding Stick / Sanding Paper Strip
stick_width_in_millimeter = 15.0; //[9:70]

// The height of the Stick will not be higher than the Base height. This value influences the width of wedge ends.
base_height_in_millimeter = 12.0; //[10:40]

// This is the length of the Base without the length of the ends
base_length_in_millimeter = 50.0; //[37:200]

// Choose, which option for the first end you wish.
end_1_option = "wedge"; //[none,round,wedge]

// Choose between the base_height and half_base_height of the first end. This value also influences the width of the ends. half_base_height is the same height, as the main part of the Sanding Stick.
end_1_height = "base_height"; //[base_height,half_base_height]

// Set the wedge angle of the first end
end_1_wedge_angle = 22.5; // [5:75]

// If you want a sharp end of the wedge, set 0. If you want a round end, set > 0.
end_1_wedge_round_tip_diameter_in_millimeter = 2.0;

// Choose, which option for the second end you wish.
end_2_option = "round"; //[none,round,wedge]

// Choose between the base_height and half_base_height of the second end. This value also influences the width of the ends. half_base_height is the same height, as the main part of the Sanding Stick.
end_2_height = "base_height"; //[base_height,half_base_height]

// Set the wedge angle of the second end.
end_2_wedge_angle = 10.0; //[3:135]

// If you want a sharp end of the wedge, set 0. If you want a round end, set > 0.
end_2_wedge_round_tip_diameter_in_millimeter = 3.0;

/* [Screw Settings (Advanced!)] */

// Thread diameter of the screw
screw_thread_dia_in_millimeter = 6.0;

// Max head diameter of the screw. If the stick width is smaller, the stick width takes place as the head diameter. If you set a higher value, you should also increase the Screw Head Space value for the top part.
screw_head_dia_in_millimeter = 12.0;

// Thread hole diameter of the sanding stick bottom part. You should use Screw Thread Dia and add about 0.5-0.8 mm for tolerance. Otherwise the screw won't fit the threaded hole of the bottom part.
screw_thread_hole_dia_in_millimeter = 6.4;

// The hole diameter of the sanding stick top part. You should use Screw Thread Dia and add about 0.5-0.8 mm for tolerance. Otherwise the screw won't fit through the top part.
screw_hole_dia_in_millimeter = 6.6;

// The space of the sanding stick top part. This space is needed for the screw. This value should be higher than the Screw Head Dia value.
screw_head_space_in_millimeter =  15.0;

// Number of teeth of the screw head.
screw_head_teeth = 8; //[2:32]

// Additional Screw Head Height. Default is 0.0 to meet the max height of the whole assembled stick. Add an extra would be easier to screw in or turn the screw of.
extra_screw_head_height_in_millimeter = 0.0;

// Max thread height for screw and sanding stick bottom part. Higher value results in a stronger join between the bottom and top part of the sanding stick, but also takes longer to screw it in.
max_thread_height_in_millimeter = 3.5;

/* [Hidden] */
stick_width = stick_width_in_millimeter;
base_length = base_length_in_millimeter;
base_height = base_height_in_millimeter;
screw_thread_dia = screw_thread_dia_in_millimeter;
screw_head_dia = screw_head_dia_in_millimeter;
screw_thread_hole_dia = screw_thread_hole_dia_in_millimeter;
screw_hole_dia = screw_hole_dia_in_millimeter;
screw_head_space = screw_head_space_in_millimeter;
extra_screw_head_height = extra_screw_head_height_in_millimeter;
max_thread_height = max_thread_height_in_millimeter;

$fn=100;

 // Program Section //
//-----------------//

if(part == "bottom_part__") {
    bottom_part();
} else if(part == "top_part__") {
    top_part();
} else if(part == "screws__") {
    screws();
} else if(part == "all_parts__") {
    all_parts();
} else {
    all_parts();
}

 // Module Section //
//----------------//

module bottom_part() {
    union() {
        color("Tan") base_bottom(base_length, base_height / 2, stick_width);

        if(end_1_option == "round") {
            color("YellowGreen") round_end_1(base_height, stick_width, end_1_height);
        }
        if(end_1_option == "wedge") {
            color("YellowGreen") wedge_end_1(base_height, end_1_height, stick_width, end_1_wedge_angle, end_1_wedge_round_tip_diameter_in_millimeter);
        }

        translate([base_length, 0, 0]) {
            if(end_2_option == "round") {
                color("RoyalBlue") round_end_2(base_height, stick_width, end_2_height);
            }
            if(end_2_option == "wedge") {
                color("RoyalBlue") wedge_end_2(base_height, end_2_height, stick_width, end_2_wedge_angle, end_2_wedge_round_tip_diameter_in_millimeter);
            }
        }
    }
}

module all_parts() {
    bottom_part();
    translate([0, stick_width + 4.0, 0]) {
        top_part();
    }
    translate([0, stick_width + screw_head_dia + 3.0, 0]) {
        screws();
    }

}

module top_part() {
    color("HotPink") base_top(base_length, base_height / 2 - 0.5, stick_width);
}

module screws() {
    translate([screw_head_dia / 2, 0, 0]) {
        color("Sienna") screw(screw_thread_dia, base_height / 2 - 1.5, base_height / 4 - 0.3, screw_head_dia, base_height / 4, extra_screw_head_height);
    }
    translate([screw_head_dia * 1.5 + 4, 0, 0]) {
        color("Sienna") screw(screw_thread_dia, base_height / 2 - 1.5, base_height / 4 - 0.3, screw_head_dia, base_height / 4, extra_screw_head_height);
    }
}

module base_bottom(length, height, width) {
    difference() {
        rotate([90, 0, 0]) {
            linear_extrude(height = width) {
                square([length, height]);
            }
        }

        // Hole 1
        if(height < max_thread_height + 1.5) {
            translate([4 + screw_head_space / 2, - width / 2, 1.5]) {
                screw_thread(screw_thread_hole_dia, 1.25, 45, height - 1, PI / 4, 1);
            }
        } else {
            translate([4 + screw_head_space / 2, - width / 2, height - max_thread_height]) {
                screw_thread(screw_thread_hole_dia, 1.25, 45, max_thread_height + 0.3, PI / 4, 1);
            }
        }

        // Hole 2
        if(height < max_thread_height + 1.5) {
            translate([length - 4 - screw_head_space / 2, - width / 2, 1.5]) {
                screw_thread(screw_thread_hole_dia, 1.25, 45, height - 1, PI / 3, 1);
            }
        } else {
            translate([length - 4 - screw_head_space / 2, - width / 2, height - max_thread_height]) {
                screw_thread(screw_thread_hole_dia, 1.25, 45, max_thread_height + 0.3, PI / 3, 1);
            }
        }

        // Chamfer
        translate([4 + screw_head_space / 2, - width / 2, height - 0.6]) {
            cylinder(d1 = screw_thread_hole_dia, d2 = screw_hole_dia * 1.2, h = 0.7);
        }
        translate([length - 4 - screw_head_space / 2, - width / 2, height - 0.6]) {
            cylinder(d1 = screw_thread_hole_dia, d2 = screw_hole_dia * 1.2, h = 0.7);
        }
    }
}

module base_top(length, height, width) {
    difference() {
        rotate([90, 0, 0]) {
            linear_extrude(height = width) {
                offset(r= + height * 0.3, $fn = 32) {
                    offset(delta =  - height * 0.3) {
                        square([length, height]);
                    }
                }
            }
        }
        // Screw Space 1
        translate([4, -width - 0.5, height / 2 + 0.1]) {
            cube([screw_head_space, width + 1.0, height / 2]);
        }
        // Screw Hole 1
        translate([4 + screw_head_space / 2, - width / 2, - 0.1]) {
            cylinder(d = screw_hole_dia, h = height / 2 + 0.3);
        }

        // Screw Space 1
        translate([length - 4 - screw_head_space, - width - 0.5, height / 2 + 0.1]) {
            cube([screw_head_space, width + 1.0, height / 2]);
        }
        // Screw Hole 2
        translate([length - 4 - screw_head_space / 2, - width / 2, - 0.1]) {
            cylinder(d = screw_hole_dia, h = height / 2 + 0.3);
        }
    }
}

module screw(thread_dia, thread_height, threadless_height, head_dia, head_height, extra_screw_head_height) {
    union() {
        if(head_dia > stick_width) {
            gear(stick_width, head_height + extra_screw_head_height, screw_head_teeth);
        } else {
            gear(head_dia, head_height + extra_screw_head_height, screw_head_teeth);
        }
        translate([0, 0, head_height + extra_screw_head_height]) {
            cylinder(d = thread_dia, h = threadless_height, $fn = 16);
        }
        translate([0, 0, head_height + threadless_height - 0.1 + extra_screw_head_height]) {
            if(thread_height < max_thread_height) {
                screw_thread(thread_dia, 1.25, 45, thread_height, PI / 4, 1);
            } else {
                screw_thread(thread_dia, 1.25, 45, max_thread_height, PI / 3, 1);
            }
        }
    }
}

module gear(dia, height, teeth) {
    union() {
        translate([0, 0, height / 2]) {
            for(tooth = [0 : teeth / 2]) {
                rotate([0, 0, 360 / teeth * tooth]) {
                    cube([dia, dia / screw_head_teeth, height], center = true);
                }
            }
        }
        cylinder(d = dia - 2.0, h = height, $fn=16);
    }
}

module round_end_1(dia, width, height_option) {
    dia = height_option == "base_height" ? dia : dia / 2;
    transition_width = height_option == "base_height" ? -dia / 2 + dia / 4 + 0.0001 : 0;
    union() {
        translate([transition_width, 0, dia / 2]) {
            rotate([90, 0, 0]) {
                difference() {
                    cylinder(d = dia, h = width, $fn = 128);
                    translate([0, -dia / 2, -0.1]) {
                        cube([dia, dia + 0.2, width + 0.2]);
                    }
                }
            }
        }
        if(height_option == "base_height") {
            base_end_transition(dia, width);
        }
    }
}

module round_end_2(dia, width, height_option) {
    translate([0, -width, 0]) {
        rotate([0, 0, 180]) {
            round_end_1(dia, width, height_option);
        }
    }
}

module wedge_end_1(max_height, height_option, width, angle, tip_dia) {
    tip_r = tip_dia / 2;
    height = height_option == "base_height" ? max_height : max_height / 2;
    bottom_width = height / tan(angle) - tip_r / tan(angle / 2);
    top_delta = sin(angle) * tip_r;
    top_height = height - (tan(angle) * (bottom_width + top_delta));
    transition_width = height_option == "base_height" ? height / 4 - 0.05 : 0;
    union() {
        translate([-bottom_width - transition_width, 0, 0]) {
            rotate([90, 0, 0]) {
                linear_extrude(height = width) {

                    polygon(points = [
                        [0, 0],
                        [bottom_width, 0],
                        [bottom_width, height],
                        [0 - top_delta, top_height],
                        [0, tip_r]
                    ]);
                    translate([0, tip_r]) {
                        circle(d = tip_dia, $fn = 64);
                    }
                }
            }
        }
        if(height_option == "base_height") {
            base_end_transition(height, width);
        }
    }
}

module wedge_end_2(max_height, height_option, width, angle, tip_dia) {
    translate([0, -width, 0]) {
        rotate([0, 0, 180]) {
            wedge_end_1(max_height, height_option, width, angle, tip_dia);
        }
    }
}

module base_end_transition(dia, width) {
    translate([-dia / 2 + dia / 4 , 0, dia / 2]) {
        rotate([90, 0, 0]) {
            union() {
                translate([0, dia / 2 - dia / 8, 0]) {
                    difference() {
                        cylinder(d = dia / 4, width, $fn = 32);
                        translate([-dia / 4, -dia / 4, -0.1]) {
                            cube([dia / 4, dia / 2, width + 0.2]);
                        }
                    }
                    translate([-0.1, -dia + dia / 8, 0]) {
                        cube([dia / 8 + 0.1, dia - dia / 8, width]);
                    }
                }
                translate([dia / 4, dia/2 - dia / 8, 0]) {
                    difference() {
                        translate([-dia / 8, -dia + dia / 8, 0]) {
                            cube([dia / 8, dia / 2 + dia / 8, width]);
                        }
                        translate([0, -dia / 4, -0.1]) {
                            cylinder(d = dia / 4, width + 0.2, $fn = 32);
                        }
                    }
                }
            }
        }
    }
}

////////////////////////////////////////////////////////////////////////
/*
 *    polyScrewThread_r1.scad    by aubenc @ Thingiverse
 *
 * This script contains the library modules that can be used to generate
 * threaded rods, screws and nuts.
 *
 * http://www.thingiverse.com/thing:8796
 *
 * CC Public Domain
 *
 * Changes by Dennis Hofmann:
 * - removed unused modules
 * - fixed deprecated parts
 */

module screw_thread(od,st,lf0,lt,rs,cs)
{
    or=od/2;
    ir=or-st/2*cos(lf0)/sin(lf0);
    pf=2*PI*or;
    sn=floor(pf/rs);
    lfxy=360/sn;
    ttn=round(lt/st+1);
    zt=st/sn;

    intersection()
    {
        if (cs >= -1)
        {
           thread_shape(cs,lt,or,ir,sn,st);
        }

        full_thread(ttn,st,sn,zt,lfxy,or,ir);
    }
}

module thread_shape(cs,lt,or,ir,sn,st)
{
    if ( cs == 0 )
    {
        cylinder(h=lt, r=or, $fn=sn, center=false);
    }
    else
    {
        union()
        {
            translate([0,0,st/2])
              cylinder(h=lt-st+0.005, r=or, $fn=sn, center=false);

            if ( cs == -1 || cs == 2 )
            {
                cylinder(h=st/2, r1=ir, r2=or, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }

            translate([0,0,lt-st/2])
            if ( cs == 1 || cs == 2 )
            {
                  cylinder(h=st/2, r1=or, r2=ir, $fn=sn, center=false);
            }
            else
            {
                cylinder(h=st/2, r=or, $fn=sn, center=false);
            }
        }
    }
}

module full_thread(ttn,st,sn,zt,lfxy,or,ir)
{
  if(ir >= 0.2)
  {
    for(i=[0:ttn-1])
    {
        for(j=[0:sn-1]) {
			pt = [	    [0,                  0,                  i*st-st            ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt-st       ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt-st   ],
						[0,                  0,                  i*st               ],
                        [or*cos(j*lfxy),     or*sin(j*lfxy),     i*st+j*zt-st/2     ],
                        [or*cos((j+1)*lfxy), or*sin((j+1)*lfxy), i*st+(j+1)*zt-st/2 ],
                        [ir*cos(j*lfxy),     ir*sin(j*lfxy),     i*st+j*zt          ],
                        [ir*cos((j+1)*lfxy), ir*sin((j+1)*lfxy), i*st+(j+1)*zt      ],
                        [0,                  0,                  i*st+st            ]	];

            polyhedron(points=pt,
              		  faces=[	[1,0,3],[1,3,6],[6,3,8],[1,6,4],
											[0,1,2],[1,4,2],[2,4,5],[5,4,6],[5,6,7],[7,6,8],
											[7,8,3],[0,2,3],[3,2,7],[7,2,5]	]);
        }
    }
  }
  else
  {
    echo("Step Degrees too agresive, the thread will not be made!!");
    echo("Try to increase de value for the degrees and/or...");
    echo(" decrease the pitch value and/or...");
    echo(" increase the outer diameter value.");
  }
}

```


[User]
Hi! I'm looking to create a customizable spool holder that can be either hanging or standing, similar to the one at https://www.thingiverse.com/thing:767317 but with the ability to easily switch between hanging and standing orientations. I'd like the design to be parametric, so I can adjust dimensions easily.

Here's what I'm thinking:

The holder should have a base plate, a connection piece going up from the base, and a hook at the top where the spool rests. I need to be able to control:

*   **Orientation:** Whether the hook points up for a hanging mount or down for a standing mount (I guess this would flip the design). Let's use a parameter called `direction` where 1 is for hanging, and -1 is for standing.
*   **Position:** Whether the connection is on the left or right side of the base plate when looking at it from the front. Let's use a parameter called `position` where 0 is for right and 1 is for left.
*   **Base:**
    *   `base_height` for the base plate's thickness.
    *   `base_width` for the base plate's width.
    *   `base_length` for the base plate's length.
*   **Connection:**
    *   `spool_radius` to calculate the height of the connection. The connection height should equal the `spool_radius` + 10mm (so `connection_height = spool_radius + 10;`).
    *  `connection_width` for the thickness of the connection piece.
*   **Hook:**
    *   `hook_radius` for the radius of the hook.
    *   `hook_width` for the width of the hook (outer radius - inner radius).

I'd like to have the base have rounded corners - maybe use Minkowski and a cylinder for this. I also want to be able to mount the base with screws, so let's put holes in it.

Could you generate the OpenSCAD file(s) for this? I'm not using any external libraries, so you don't need to worry about those. Thanks!

[Assistant]
custom_spool_holder_mount.scad:
```
// Hanging or Standing?
direction = 1; // [1:Hanging, -1:Standing]
// Left or right?
position = 0; // [0:Right, 1:Left]

// Base Plate Height [mm]
base_height = 3; // [0.5:0.1:10]
// Base Width [mm]
base_width = 70; // [30:1:200]
// Base Plate Lenght [mm]
base_length = 15; // [1:0.5:30]

// (Connection Height = Spool radius + 10mm)
spool_radius = 100; // [30:200]
// Connection Width [mm]
connection_width = 4; // [1:0.2:10]

// Hook Radius [mm]
hook_radius = 14; // [5:0.2:40]
// Hook Width [mm] (Outer radius - inner radius)
hook_width = 8; // [1:0.2:10]

connection_height = spool_radius + 10;

if(position == 0){
    stand();
}else if(position == 1){
    rotate([180,0,0])
    mirror([0,0,1])
    stand();
}

module stand() {
    rotate([-90,0,0])
    union(){
        base();
        connection();
        hook();
    }
}

module base() {
    difference(){
        minkowski(){
            cube([base_width,base_length,base_height/2], center=true);
            translate([0,0,-base_height/4])
            cylinder(r=4, h=base_height/2, $fn=32);
        }

        translate([base_width/2-4,-2,-(base_height+1)/2])
        cylinder(r=2, h=base_height+1, $fn=32);
        translate([-base_width/2+4,-2,-(base_height+1)/2])
        cylinder(r=2, h=base_height+1, $fn=32);
    }
}

module hook(){
    y_translation = base_length/2+2;
    translate([hook_radius-hook_width/2,y_translation,connection_height+base_height/2])
    rotate([-90*direction,0,0])
    difference(){
        translate([0,0,-connection_width/2])
        cylinder(r=hook_radius, h=connection_width, $fn=128);

        translate([0,0,-(connection_width+1)/2])
        cylinder(r=hook_radius-hook_width, h=connection_width+1, $fn=64);

        translate([-hook_radius-0.5,0,-(connection_width+1)/2])
        cube([2*hook_radius+1, hook_radius+1, connection_width+1]);
    }
}

module connection(){
    y_translation = base_length/2+2;
    hull(){
        translate([0,y_translation,connection_height/2+base_height/2])
        cube([hook_width, connection_width, connection_height], center=true);

        translate([-base_width/2-2,y_translation,0])
        cube([4, connection_width, base_height], center=true);
        translate([+base_width/2+2,y_translation,0])
        cube([4, connection_width, base_height], center=true);
    }

    hull(){
        translate([0,y_translation,connection_height/2+base_height/2])
        cube([hook_width, connection_width, connection_height], center=true);

        translate([0,-y_translation,0])
        cube([4, connection_width, base_height], center=true);
    }
}
```


[User]
I'm looking for a parametric OpenSCAD design for a cable clip that can be attached to the edge of a table or desk. I want to be able to easily clip a cable into it, so the design should include a C-shaped opening for the cable and a flat surface for mounting to the desk edge.

Specifically, the design should have these adjustable parameters:

*   `Opening_Width`: The width of the opening in the "C" shape where the cable will go.
*   `Wall_Thickness`: The thickness of the walls surrounding the cable.
*   `Cable_Diameter`: The diameter of the cable that the clip is designed to hold.
*   `Side_Thickness`: The thickness of the flat side pieces.
*   `Height`: The overall height of the clip.
*   `Side_Width`: The width of the longer, flat side piece.
*   `Extra_Width`: An extra width added to the base of the C-shape. This is for structural support.
*   `Cylinder_Quality`: A parameter to control the number of facets when generating cylinders. This impacts the smoothness of round edges.

The clip should have a cylindrical main body with the specified `Cable_Diameter` and `Wall_Thickness`, then have a portion removed to create the 'C' shape using the `Opening_Width`. One flat side piece should extend out from the base of the 'C', and there should be a second flat side piece extending out from that one further. The flat sides are to act as a mount for the desk edge, and the cable to clip in to the c-shaped channel.

Could you please generate an OpenSCAD file or files that create this design using the parameters I've specified, and ensure it is fully parametric? Please don't use any external libraries for this.

[Assistant]
cable_clip.scad:
```
Openning_Width = 4;
Wall_Thickness = 3.2;
Cable_Diameter = 8.2;
Side_Thickness = 2.8;
Height = 17;
Side_Width = 8;
Extra_Width = 3;
Cylinder_Quality = 20;

difference(){
cylinder(d=Cable_Diameter+Wall_Thickness,h=Height,$fn=Cylinder_Quality);
translate([-Openning_Width/2,0,-.5])
cube([Openning_Width,Cable_Diameter+Wall_Thickness,Height*3]);
cylinder(d=Cable_Diameter,h=Height*3,center=true,$fn=Cylinder_Quality*0.9);
}
translate([-(Cable_Diameter+Wall_Thickness+Extra_Width)/2,-Side_Thickness-Cable_Diameter/2-Wall_Thickness/8])
cube([Cable_Diameter+Wall_Thickness+Extra_Width,Side_Thickness,Height]);

translate([-(Cable_Diameter+Wall_Thickness+Extra_Width)/2,-Side_Width-Side_Thickness-Cable_Diameter/2-Wall_Thickness/8])
cube([Cable_Diameter+Wall_Thickness+Extra_Width,Side_Width+Side_Thickness,Side_Thickness]);
```


[User]
Hey, I'm looking to design a customizable fidget spinner in OpenSCAD, and I've seen some cool examples but I want to start from scratch so I can fully control it. I need it to be parametric so I can easily adjust the number of arms/rays, the type and number of weights on each ray, and other characteristics like corner rounding and glue grooves for the weights.

Specifically, I'd like these parameters:

*   **Number of rays:** This should be an integer, let's start with a default of 3 but allow a range up to 12.
*   **Number of weights per ray:** This should also be an integer, with a default of 2, and allow for at least 4.
*  **Extra ray length:** This should be an integer for extra length for a single weight on a ray.
*   **Weight Type:** This should be a dropdown or something, allowing choices like a 608 bearing (for the center and optionally for weights if needed), various SAE and metric hex nuts (5/16, 3/8, 1/2 inch hex, M8, M10, M12), and even some coins (penny, nickel, dime, quarter). Ball bearings would also be great, in 5/16, 3/8, 1/2, and 5/8 sizes.
*   **Corner Radius:** This should be a numerical value, defaulting to 2, that will round the sharp edges of the spinner.
*   **Tapered Rays:** This should be a simple toggle (yes/no) for whether the width of the rays should be tapered towards the center bearing.
*   **Center Bearing Glue Groove:** This should be a numerical value that, if greater than zero, creates a groove around the central bearing hole, so I can glue the bearing in.
*   **Ray Weights Glue Groove:** Similar to the center groove, but for the weights on the rays.  Default of zero, but I want to be able to specify a value.

I'm thinking the core spinner shape should be made up of a central cylinder with the main bearing hole, and then "rays" extending outwards. The weights should be added at the end of each ray. I want to use a `hull()` to create a smooth transition from the center to the weights. The weight cutouts should be subtracted using a `difference()`.

Also, please ensure that the hex nut cutouts are appropriately rotated to align with the flat sides of the hex nut. Use a module to create a "glue groove" that can work for both cylinders (bearings) and cubes (square nuts). I'd like to generate a single file that will produce the final spinner. I don't need any external libraries. Thanks!

[Assistant]
Really_Customizable_Fidget_Spinner.scad:
```
// lucina
// 2017-05-18

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

// the number of rays
rays = 3; //[1,2,3,4,5,6,7,8,9,10,11,12]

// 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 = "3/8 hex nut";   //[608 bearing, 5/16 hex nut, 3/8 hex nut, 1/2 hex nut, M8 hex nut, M10 hex nut, M12 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]

// taper the width of the rays with center bearing
taperedRays = "no";   //[yes, no]

// 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 = 3;

bearing = [22, 22, 7]; //608 bearing
sae = [.577*25.4, .5 * 25.4, 7]; // 5/16 hex nut
sae38 = [.650*25.4,.562*25.4, 7];	// 3/8
sae12 = [.866*25.4, .75*25.4, 7];	// 1/2
metric = [15, 13, 7];   // M8 hex nut
metric10 = [19.6, 17, 7];   // M10 hex nut
metric12 = [21.9, 19, 7];   // M12 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*25.4, 5/16*25.4, 5/16*25.4];
ball38 = [3/8*25.4, 3/8*25.4, 3/8*25.4];
ball12 = [1/2*25.4, 1/2*25.4, 1/2*25.4];
ball58 = [5/8*25.4, 5/8*25.4, 5/8*25.4];

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") ? metric :
   (whichWeight == "M10 hex nut") ? metric10 :
   (whichWeight == "M12 hex nut") ? metric12 :
   (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 hex nut") ? 6 :
(whichWeight == "M12 hex nut") ? 6 :
(whichWeight == "M4 square nut") ? 4 : 60;
echo("resolution=", resolution);
rotation = (resolution == 6) ? 30 : 0;
echo("rotation=", rotation);

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 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 ( taperedRays == "yes" )
               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);
                   }
                 }
               }
            else
               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);
                   }
                 }
           }
         }
      }
   }
   // 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);
                     }
                  }
               }
            }
         }
      }
   }
}

```


[User]
Okay, I'm looking to get a parametric fidget spinner design, kind of like the "Edgy Yin Yang" one I saw, but I need it to be more flexible in terms of the weights and overall shape. I really want to be able to easily adjust things like the number of weights, the type of weight used, and even the shape of the "tail" section.

Here's what I'm thinking:

**Core Structure:**

*   **Central Bearing:**  It should be designed around a standard 608 bearing. That should be a fixed dimension.
*   **Peripheral Weights:** I'd like the ability to add 2, 3, or 4 peripheral weights.
*   **Weight Types:** I'd need the design to accommodate different weight types, namely:
    *   608 bearing
    *   SAE hex nuts: 5/16", 3/8", and 1/2"
    *   Metric hex nuts: M8, M10 (both 16mm and 17mm flat-to-flat), and M12 (both 18mm and 19mm flat-to-flat)
    *   M4 square nut
    *   Stacks of coins: 4 pennies, 3 nickels, 5 dimes, 4 quarters
    *   Loose ball bearings: 5/16", 3/8", 1/2", and 5/8"
    *   Make sure to include the sizes needed for those.
*   **Weight Placement:** The weights should be placed around the central bearing. The angle between them should be adjustable, but the default should be close to even spacing (roughly 120 degrees for 3 weights and 170 degrees for 4 weights). There needs to be some overlap where the weight frame connects to the central frame, say 1.5, 2.0, or 2.5mm.
*   **"Tail" Shape:** The "tail" section should be adjustable. I'd like options to either:
    *   Shorten the "tail"
    *   Thin the "tail"
    The degree of shortening or thinning should be adjustable with a simple number.

**Parameters I'd Like to Control:**

*   `objects`:  Number of peripheral weights (2, 3, or 4)
*   `whichWeight`: Type of weight to use (from the list above)
*   `rotation`: The angle of the peripheral weights.
*   `overlap`: Overlap between the bearing frame and the weight frames (1.5, 2.0, or 2.5mm)
*   `reduceTailType`:  "shorten" or "thin"
*  `reduce`: The factor to apply to the "tail" modification.

**General:**

*   I'd like a generally "edgy" feel for the overall design, like the yin-yang shape.
*   The design should be easily 3D printable.

I'd be looking for the design in OpenSCAD, so a `.scad` file (or files, if you feel it's necessary) would be perfect. I don't need any external libraries for this. Just a standalone SCAD.

[Assistant]
edgy-yin-yang-2017-10-05.scad:
```
// lucina
// 2017-10-05

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

// the number of peripheral objects
objects = 3; //[2,3,4]
// the type of weight
whichWeight = "3/8s 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, 4 pennies, 3 nickels, 5 dimes, 4 quarters, 5/16 ball bearing, 3/8 ball bearing, 1/2 ball bearing, 5/8 ball bearing]
// angle of the peripheral objects: 2 objects: use ~120, 4 objects: use ~170
rotation = 120;  //[100:5:180]
// the overlap in mm between the bearing frame and the weight frames
overlap = 2.0;  //[1.5, 2.0, 2.5]
// reduce tail type
reduceTailType = "shorten"; //[shorten, thin]
// reduce "tail"
reduce = 1.2; //[0:.1:3]

/* [Hidden] */
$fn = 60;
x = 0; y = 1; z = 2;
radius = 2;  //[0:.5:3]
thick = 3;
space = 5;
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, 6.5];   // M8 hex nut
metric10_16 = [18.48, 16, 8.4];   // M10 16 hex nut
metric10_17 = [19.63, 17, 8];   // M10 17 hex nut
metric12_18 = [20.78, 18, 10.8];   // M12 18 hex nut
metric12_19 = [21.94, 19, 10];   // M12 19 hex nut
metric4sq = [7, 7, 3.2];
penny = [19.05, 19.05, 4*1.55];  //x4
nickel = [21.21, 21.21, 3*1.95]; //x3
dime = [17.91, 17.91, 5*1.35]; //x5
quarter = [24.26, 24.26, 4*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];

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 == "4 pennies") ? penny :
   (whichWeight == "3 nickels") ? nickel :
   (whichWeight == "5 dimes") ? dime :
   (whichWeight == "4 quarters") ? 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);

edge = 3;
outerR = weight[x]+2*space-radius;
step = 360 / objects;
stop = (objects-1) * step;
offset = (reduceTailType == "shorten") ? 1+reduce : 1;

module yin() {
   translate([0, -outerR/2, 0])
      union() {
         difference() {
            hull() {
            cylinder(h = bearing[z], r = outerR-edge, center = true);
            cylinder(h = .25, r = outerR, center = true);
            }
            union() {
               translate([0, -offset*(outerR/2), 0])
                  union() {
                     hull() {
                     cylinder(h=.25, r=(1+reduce)*outerR/2, center=true);
                     translate([0, 0, 3.5])
                     cylinder(h=.001, r=(1+reduce)*outerR/2+edge, center=true);
                     }
                     hull() {
                        cylinder(h=.25, r=(1+reduce)*outerR/2, center=true);
                        translate([0, 0, -3.5])
                        cylinder(h=.001, r=(1+reduce)*outerR/2+edge, center=true);
                     }
                  }
               translate([outerR/2, 0, 0])
                  cube([outerR, 2*outerR, 2*bearing[z]], center=true);
            }
         }
         translate([0, outerR/2, 0])
            hull() {
            cylinder(h = bearing[z], r = outerR/2-edge, center=true);
            cylinder(h = .25, r = outerR/2, center=true);
            }
      }
}

module fcylinder(z, x, rad) {
   translate([0, 0, rad-z/2])
      minkowski() {
         cylinder(h=z-2*rad, d=x-2*rad);
         sphere(rad);
      }
}
difference() {
   union() {
      fcylinder(bearing[z], bearing[x]+2*thick, radius);
      for ( angle = [0 : step : stop] ) {
         rotate([0, 0, angle])
            translate([(bearing[x])/2 + thick + outerR/2-overlap, 0, 0])
               rotate([0, 0, -rotation])
                  yin();
      }
   }
   // holes
   union() {
      cylinder(h=2*bearing[z], d=bearing[x], center=true);
      for ( angle = [0 : step : stop] ) {
         rotate([0, 0, angle])
            translate([(bearing[x])/2 + thick + outerR/2-overlap, 0, 0])
               rotate([0, 0, 30])
                  cylinder(h=2*bearing[z], d=weight[x], center=true, $fn=resolution);
      }
   }
}

```


[User]
I'm looking to create a customizable flag system using OpenSCAD, similar to the one I've been using with 3D prints. I've included a simple SCAD file that adds text to a pre-existing STL, but I'd like to move away from using a separate program for text. I need a fully parametric design for both the flags and the bases that hold them.

Here's a breakdown of what I need:

**Flag Design:**

*   **Parametric Text:** The ability to specify text that will be printed on the flag. I need to be able to adjust the size, font, and alignment of the text. I was hoping you could also add a parameter to control the thickness of the text.
*   **Flag Dimensions:** Parameters for flag height, length, and thickness. I'd also like to be able to set the thickness of the pin that inserts into the base. The pin should be centered on the bottom of the flag.
*   **Pin Shape:** The pin should be a cylinder.
*   **Rounded Corners:** The flags should have rounded corners, controlled by a radius parameter.

**Base Design (Flag Holder):**

*   **Number of Flags:** The base should be able to hold 1 to 8 flags (this parameter should be an integer).
*   **Mounting Holes:** Each base should have mounting holes for screws. The number of mounting holes should change depending on the number of flags supported to maintain stability.
*  **Hole Spacing:** I'd like to control the spacing of the mounting holes.
*   **Base Dimensions:** Parameters for base width, length, and thickness. The base should extend beyond the flags both vertically and horizontally.
*   **Pin Receivers:** The base needs cylindrical holes to receive the pins of the flags, properly spaced to hold the specified number of flags.
*  **Receiver Spacing:** A parameter to control the spacing between each flag pin receiver, allowing for different flag widths
*   **Flexibility Consideration:** The base should be designed with the consideration that it will be slightly flexible, as indicated by my notes above.

**General Requirements:**

*   **Modular Design:** Ideally, the design should be broken into separate modules or functions for flags and bases.
*   **Customization:** Everything should be adjustable using parameters.
*   **OpenSCAD Libraries:** Please try to avoid the use of OpenSCAD libraries if you can.

The final deliverable should be a set of .scad files, at least one for the flag and one for the base, that can be used in OpenSCAD to generate STLs. Please make sure to include comments in the code to explain each section and parameter. I think that is everything - please let me know if you have questions!

[Assistant]
blank_flag.scad:
```
import("/Volumes/My Book/3d Print/Office Flag System/Blank Flag.stl");
t = "Laser";

 linear_extrude(height = 7){
     text(t, size = 12, halign = "center", valign = "center" );
    }

```


[User]
Hey, I'm looking to design a customizable phone holder for my bike, and I'd like it to be done in OpenSCAD so I can tweak the parameters later. I have an existing design I like, but it's not parametric enough for my needs, and I'm hoping you can create something from scratch that better fits the bill.

The core idea is a holder with two main vertical rails that the phone sits between, and then three perpendicular "ortogonal" pieces that clamp the phone in place: one at the bottom, one in the middle (offset to avoid buttons), and one at the top. The holder needs to be mountable to the handlebars.

Here are the main parameters I need to control:

*   **Phone Dimensions:** `c_width`, `c_height`, `c_thickness`. These should allow for a little extra space, say 0.4mm on each dimension.
*   **Handlebar Diameter:** `tube_d`
*   **Middle Holder Offset:** `mid_holder_offset`. This is how much the middle ortogonal part is vertically offset from the center.
*   **Middle Holder Overlap:** `mid_holder_overlap`. How far the middle holder extends over the edges of the phone.
*   **Other Structural Parameters:** I need `side_wall` which is a consistent wall thickness, `rail_height` which is the height of the main rails, `rail_width` which is the width of the main rails, and `rail_gauge` which is the distance between the main rails.

The overall design would have:

1.  **A Phone Model:** A simple cube representing the phone's dimensions for reference.
2.  **Back Rails:** Two vertical rails with an interconnecting structure to give structural integrity.
3.  **Middle Holder:** An ortogonal part with a cutout matching the phone dimensions, and an offset from the main rails.
4.  **Bottom Holder:** Similar to the middle holder, but located at the bottom and with less overlap, ideally.
5.  **Top Holder:** Again, similar to the previous holders but at the top and should be less aggressive in the overlap compared to the middle holder
6.  **Handlebar Binding:** A part that clamps onto the handlebar, with a screw to tighten.

I'd also want a module that assembles all the parts together, and ideally has an option to render only the main parts needed for printing, rather than all the parts at once. This is going to require using boolean operations (especially `difference()`, `union()`, `hull()`, and `intersection()`) and transformations to align the parts.

I don't need anything overly fancy and I don't need this to use any additional libraries, but it would be great to be able to control the rendering quality using `$fn`. This should allow for some complex curves in the clamp for the handlebars. I'm open to any suggestions to make the model easier to print. Let me know if you need any clarification!

[Assistant]
holder.scad:
```
/*** Customizable cellphone holder on bike by Svenny ***
 ***    https://www.thingiverse.com/thing:2412017    ***/

/* [WHAT TO VIEW] */
// what to render
view = "to_print"; // [to_print, model, back, bottom, mid, top, bind]

/* [CELLPHONE AND HANDLEBAR] */
// cellphone width - consider adding ~0.4mm (depends on printer)
c_width = 74.4;
// cellphone height - consider adding ~0.4mm (depends on printer)
c_height = 145.6;
// cellphone thickness - consider adding ~0.4mm (depends on printer)
c_thickness = 11.7;
// handlebar diameter
tube_d = 30;

/* [MIDDLE HOLDER] */
// offset of middle holder and handlebar binding (check side buttons of your phone)
mid_holder_offset = -7;
// overlap of the middle ortogonal part
mid_holder_overlap = 5;

/* [OTHER PARAMS] */
// holder wall thickness (unnecessary to modify)
side_wall = 2;
// main rails height (unnecessary to modify)
rail_height = 10;
// main rails width (unnecessary to modify)
rail_width = 6;
// distance between main rails (unnecessary to modify)
rail_gauge = 20;

/* [RENDERING PRECISION] */
$fn=80;

// cellphone model
module phone() {
    cube([c_width, c_height, c_thickness], center=true);
}

// main skelet
module back_holder(rail_width=rail_width, rail_height=rail_height) {
    rail_len = c_height;
    x_offset = (rail_gauge+rail_width)/2;
    difference() {
        union() {
            translate([-x_offset,0,0])
            cube([rail_width, rail_len, rail_height], center=true);
            translate([x_offset,0,0])
            cube([rail_width, rail_len, rail_height], center=true);

            for(i = [-1,1])
                translate([0,i*(rail_len-rail_width)/2,0])
                cube([c_width-10, rail_width, rail_height],
                    center=true);
        }

        translate([0,c_height/2,0])
        cube([16,c_height/2,2*rail_height], center=true);

        for(i = [-1,1])
            translate([0, i*rail_len/2, rail_height/2])
            cube([2*c_width, 20, rail_height], center=true);

        translate([0, mid_holder_offset, rail_height/2])
        cube([2*c_width, 10, rail_height], center=true);

        translate([0, mid_holder_offset, 0])
        for(i = [-1, 1])
            translate([0, i*15, 0])
            rotate([0,90,0])
            cylinder(d=3.2, h=c_width, center=true);
    }
}

// basic shape for ortogonal parts
module orto_holder_shape(h) {
    hull() {
        translate([0,0,-(side_wall+c_thickness+rail_height/2)/2])
        cube([2*side_wall+c_width, h, side_wall+c_thickness+rail_height/2],
            center=true);
        cube([20+rail_width, h, rail_height], center=true);
    }
}

// middle ortogonal holder
module mid_orto_holder() {
    difference() {
        orto_holder_shape(9.8);

        translate([0,0,-(c_thickness+rail_height)/2])
        phone();

        translate([0,-mid_holder_offset,0])
        back_holder(rail_width+0.3, rail_height+0.25);

        translate([0,0,-c_thickness-rail_height/2])
        cube([c_width-2*mid_holder_overlap,20,3*side_wall],
            center=true);
    }
}

// bottom ortogonal holder
module bottom_orto_holder() {
    h = 10+side_wall;
    y_offset = (c_height-h)/2+side_wall;
    difference() {
        orto_holder_shape(h);

        translate([0,y_offset,-(c_thickness+rail_height)/2+0.05]) {
            phone();
            cube([45,1000,c_thickness], center=true);
        }

        translate([0,y_offset,0])
        back_holder(rail_width+0.3, rail_height+0.25);
    }
}

// top ortogonal holder
module top_orto_holder() {
    h = 10+side_wall;
    y_offset = (c_height-h)/2+side_wall;
    z_offset = (c_thickness+rail_height)/2-0.05;
    difference() {
        orto_holder_shape(h);

        translate([0,-y_offset,-z_offset])
        phone();

        translate([0,0,-z_offset])
        cube([c_width-7, 2*h, c_thickness], center=true);

        translate([0,-0.01,-z_offset-c_thickness/2])
        cube([c_width-12,2*h,2*c_thickness], center=true);

        translate([0,-y_offset,0])
        back_holder(rail_width+0.3, rail_height+0.25);

        cube([12.05,c_height/2,10*rail_height], center=true);
    }
}

// binding to handlebar
module binding(h=20) {
    difference() {
        union() {
            hull() {
                rotate([0,90,0])
                cylinder(d=tube_d+4, h=h, center=true);

                translate([0,0,-tube_d/2-8])
                cube([h,tube_d+4,9.99], center=true);
            }

            // screw part
            hull() {
                translate([0,0,tube_d/2+5-(h-18)/2])
                rotate([90,0,0])
                cylinder(d=h, h=18, center=true);

                cube([h,18,tube_d], center=true);
            }

            translate([0,0,-tube_d/2-8])
            cube([h,48,9.99], center=true);
        }

        // main hole
        rotate([0,90,0])
        cylinder(d=tube_d, h=2*h, center=true);

        // tightening screw
        translate([0,0,tube_d/2+5])
        rotate([-90,0,0]) {
            cylinder(d=4.5, h=50, center=true);
            translate([0,0,6.5])
            cylinder(r1=3.8, r2=5, h=6, $fn=6);
        }

        // divide
        translate([0,0,tube_d/2])
        cube([2*h, 8, tube_d], center=true);

        // upper part matching
        translate([0,-mid_holder_offset,-tube_d/2-8]) {
            arrange();
            for(i = [-1, 1])
                translate([0, i*15-7, 0])
                rotate([0,90,0])
                cylinder(d=3.2, h=c_width, center=true);
        }
    }
}

// prepare all for printing
module to_print() {
    translate([-2*c_width/3,0,0])
    rotate([90,0,0])
    mid_orto_holder();

    translate([-2*c_width/3,-30,0])
    rotate([-90,0,0])
    intersection() {
        bottom_orto_holder();
        translate([-200,0,-200])
        cube(400);
    }
    translate([-2*c_width/3,-90,0])
    rotate([90,0,0])
    difference() {
        bottom_orto_holder();
        translate([-200,0,-200])
        cube(400);
    }

    translate([-2*c_width/3,60,0])
    rotate([-90,0,0])
    intersection() {
        top_orto_holder();
        translate([-200,0,-200])
        cube(400);
    }
    translate([-2*c_width/3,90,0])
    rotate([90,0,0])
    difference() {
        top_orto_holder();
        translate([-200,0,-200])
        cube(400);
    }

    translate([2*c_width/3,0,0])
    back_holder();

    translate([8*c_width/5,0,0])
    rotate([0,90,0])
    binding(rail_gauge-0.4);
}

// arrange model
module arrange() {
    y_offset = (c_height-side_wall-10)/2+side_wall;

    color("yellow")
    translate([0,mid_holder_offset,0])
    mid_orto_holder();

    color("orange")
    translate([0,-y_offset,0])
    bottom_orto_holder();

    color("red")
    translate([0,y_offset,0])
    top_orto_holder();

    color("green")
    back_holder();
}

// render...
if(view == "to_print")
    to_print();
else if(view == "model")
    mirror([0,0,1]) {
        arrange();
        color("blue")
        translate([0,mid_holder_offset,tube_d/2+8])
        binding(rail_gauge);
    }
else if(view == "back")
    back_holder();
else if(view == "bottom")
    bottom_orto_holder();
else if(view == "mid")
    mid_orto_holder();
else if(view == "top")
    top_orto_holder();
else if(view == "bind")
    binding(rail_gauge-0.4);
else
    text("bad value for 'view'");
```


[User]
Alright, I'm trying to design some custom Lego-compatible parts for robotics projects using OpenSCAD, and I'd like your help generating the code. I've seen some code that does this, but I'd like to make it my own and start from scratch. The core of what I need is a way to generate standard Lego bricks of different sizes and configurations.

Here's what I need in terms of functionality:

1.  **Basic Brick Generation:**
    *   I need a module that can generate Lego bricks of varying `width`, `length`, and `height`. These dimensions should be in terms of "studs," where a single stud represents one unit of length/width. Height should be a ratio, as specified in the provided code. A height ratio of "1" should be a standard brick height, "1/3" a plate, etc.

2.  **Studs and Anti-Studs:**
    *   The module needs to generate the studs on top and the corresponding "anti-studs" (posts) on the bottom, with standard Lego geometry, including the slight taper on the inside of the anti-studs.
        *   The anti-studs should have the option to include an axle hole, or not.

3.  **Reinforcement:**
    *   I'd like internal reinforcing elements between the posts when the brick has multiple studs in both dimensions (i.e. not a 1xN or Mx1 brick). This reinforcement should connect adjacent posts and also extend outward to the walls of the brick and provide a connection to the top layer of the brick.

4.  **Grooves (optional):**
    *   I need the option to include the internal grooves on the inside of the brick, used to improve flexibility. This can be a simple toggle; if it's true, the grooves are added, if false they are not.

5.  **Clearance:**
    *   The brick should have a small amount of clearance built in to each side, for easy fit with other lego parts.

6.  **Parametric Design:**
    *   Everything should be parametric, so I can easily change the dimensions and other parameters from the top-level of the design. This means I'll need to be able to specify things like:
        *   `block_width` (in studs)
        *   `block_length` (in studs)
        *   `block_height_ratio`
        *   `Grooves` (true or false)

    *   I'd also like the following hidden parameters to be tweakable in the code, though they do not need to be exposed to the user as a top-level customization option. These are also in the provided code.
        *   `knobScale`
        *   `postScale`

    *   The following parameters should be calculated and used internally to generate the brick.
        *   `knob_diameter`
        *   `knob_height`
        *   `knob_spacing`
        *   `wall_thickness`
        *   `roof_thickness`
        *   `block_height`
        *   `pin_diameter`
        *   `post_diameter`
        *   `reinforcing_width`
        *   `axle_spline_width`
        *   `axle_diameter`
        *   `cylinder_precision`
        *   `overall_length`
        *   `overall_width`

7.  **No Libraries:** I do not want to use any external libraries in this code.

I think that's about it for the core functionality. The idea is to build a base set of customizable parts for my robotics projects.

[Assistant]
Regular_Legos.scad:
```
// * LEGO®, the LEGO® logo, the Brick, DUPLO®, and MINDSTORMS® are trademarks of the LEGO® Group. ©2012 The LEGO® Group.
 //

/* [General] */

// Width of the block, in studs
block_width = 2;

// Length of the block, in studs
block_length = 4;

//Do you want the flexible grooves?
Grooves =false; //true or false

// Height of the block. A ratio of "1" is a standard LEGO brick height; a ratio of "1/3" is a standard LEGO plate height; "1/2" is a standard DUPLO plate.
//RECOMENDED: Use 0.1 for lego stud tape and .34 for tile tape. This is left as user editible in case your filament is more/less flexible than mine.
//Tring .25mm for 7x7 hard top for cuitcuit cover, .3 thick for chassis
    block_height_ratio = 1; // [.33333333333:1/3, .5:1/2, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8, 9:9, 10:10]

/* Hidden */
knobScale=1.0;
postScale=1.0;

knob_diameter=4.896*knobScale;		//knobs on top of blocks.
knob_height=1.8;
knob_spacing=8.0;
wall_thickness=1.45;
roof_thickness=.800;
block_height=9.6*block_height_ratio;
pin_diameter=3.2*postScale;		//pin for bottom blocks with width or length of 1.
post_diameter=6.5137*postScale; //The Post on the bottom of blocks.
reinforcing_width=.6;
axle_spline_width=2.0;
axle_diameter=5;
cylinder_precision=0.03;
overall_length=block_length*8;
overall_width=block_width*8;

difference(){
    block(block_width ,block_length,1,axle_hole=false,reinforcement=true);
    if (Grooves == true) {
    grooves();
    }
    //These translated cubes cut out .1mm form the ends of each side of the brick for clearance to the next brick.
    translate([block_length*knob_spacing/2,0,0]){
        cube([.2,8*block_width+.01,block_height*2.01], center = true);
    }
     translate([-block_length*knob_spacing/2,0,0]){
        cube([.2,8*block_width+.01,block_height*2.01], center = true);
    }
     translate([0,-block_width*knob_spacing/2,0]){
        cube([8*block_length+.01,.2,block_height*2.01], center = true);
    }
     translate([0,block_width*knob_spacing/2,0]){
        cube([8*block_length+.01,.2,block_height*2.01], center = true);
    }

}

module grooves(height){
        	translate([-overall_length/2,-overall_width/2-.01,0]) {
        for (ycount=[1:block_width-1]){
							for (xcount=[1:block_length-1]) {
                                translate([xcount*knob_spacing,block_width*knob_spacing/2,block_height-1.5/4+.01]){
                                cube([.75,block_width*knob_spacing,1.5/2], center = true);
                                    //y axisgrooves
                                }
                                translate([block_length*knob_spacing/2,ycount*knob_spacing,block_height-1.5/4+.01]){
                                cube([block_length*knob_spacing,.75,1.5/2], center = true);
                                    //x axis grooves

                                }

                            }
                        }
                    }
                }

module block(width,length,height,axle_hole,reinforcement) {
    overall_length=block_length*8;
    //overall_length=(length-1)*knob_spacing+knob_diameter/1+wall_thickness*2;
    overall_width=block_width*8;
	//overall_width=(width-1)*knob_spacing+knob_diameter/1+wall_thickness*2;
	start=(knob_diameter/2+knob_spacing/2+wall_thickness);
	translate([-overall_length/2,-overall_width/2,0])
		union() {
			difference() {
				union() {
					cube([overall_length,overall_width,height*block_height]);
					translate([knob_diameter/2+wall_thickness,knob_diameter/2+wall_thickness,0])
						for (ycount=[0:width-1])
							for (xcount=[0:length-1]) {
                                translate([xcount*knob_spacing,ycount*knob_spacing,0])
                                cylinder(r=knob_diameter/2,h=block_height*height+knob_height,$fs=cylinder_precision);
                                }
                         }

                    translate([wall_thickness,wall_thickness,-roof_thickness]) cube([overall_length-wall_thickness*2,overall_width-wall_thickness*2,block_height*height]);
                }

			if (reinforcement==true && width>1 && length>1)
				difference() {
					for (ycount=[1:width-1])
						for (xcount=[1:length-1])
							translate([(xcount-1)*knob_spacing+start,(ycount-1)*knob_spacing+start,0]) reinforcement(height);
					for (ycount=[1:width-1])
						for (xcount=[1:length-1])
							translate([(xcount-1)*knob_spacing+start,(ycount-1)*knob_spacing+start,-0.5]) cylinder(r=post_diameter/2-0.1, h=height*block_height+0.5, $fs=cylinder_precision);
				}

			if (width>1 && length>1) for (ycount=[1:width-1])
				for (xcount=[1:length-1])
					translate([(xcount-1)*knob_spacing+start,(ycount-1)*knob_spacing+start,0]) post(height,axle_hole);

			if (width==1 && length!=1)
				for (xcount=[1:length-1])
					translate([(xcount-1)*knob_spacing+start,overall_width/2,0]) cylinder(r=pin_diameter/2,h=block_height*height,$fs=cylinder_precision);

            if (width==1 && length!=1)
				for (xcount=[1:length-1])
					translate([(xcount-1)*knob_spacing+start,overall_width/2,block_height/2]) cube([reinforcing_width,7,height*block_height],center=true);

			if (length==1 && width!=1)
				for (ycount=[1:width-1])
					translate([overall_length/2,(ycount-1)*knob_spacing+start,0]) cylinder(r=pin_diameter/2,h=block_height*height,$fs=cylinder_precision);
            if (length==1 && width!=1)
				for (ycount=[1:width-1])
                    translate([overall_length/2,(ycount-1)*knob_spacing+start,block_height/2]) cube([7,reinforcing_width,height*block_height],center=true);

            }
}

module post(height,axle_hole=false) {
	difference() {
		cylinder(r=post_diameter/2, h=height*block_height,$fs=cylinder_precision);
		translate([0,0,-0.5])
            cylinder(r=knob_diameter/2, h=height*block_height+1,$fs=cylinder_precision);

	}
}

module reinforcement(height) {
	union() {
		translate([0,0,height*block_height/2]) union() {
			cube([reinforcing_width,knob_spacing+knob_diameter+wall_thickness/2,height*block_height],center=true);
			rotate(v=[0,0,1],a=90) cube([reinforcing_width,knob_spacing+knob_diameter+wall_thickness/2,height*block_height], center=true);
		}
	}
}

```


[User]
Hey, I'm looking for an OpenSCAD design for generating random, customizable stones or rocks. I've seen a design that uses a `hull()` and randomly placed, rotated cubes around a central point, and I'd like something similar, but with a few specific parameters and hopefully a more robust approach.

Basically, I need to control the overall shape and jaggedness of the stone. I'm thinking the design should include:

*   **Overall Radius:** This sets the base size of the stone.
*   **Corner Size:** This controls the size of the cubes used to create the irregular shape. I'd like this to be a single value, and the cubes should remain roughly square.
*   **Number of Corners:** This determines how many cubes are randomly placed around the stone, influencing how spherical or jagged it is. More corners should lead to a smoother stone.
*   **Z Scale:** This allows scaling the stone along the Z axis, making it taller or flatter.

Additionally, I'd like the cubes to have a bit of random size variation so the corners aren't all the exact same size.

The core idea from the previous design with using `hull()` to create the basic shape using random cubes works well, but can we go for something more robust? I was thinking of using a sphere as the starting point and then deforming it with the random cube method, if that makes sense. I'm not sure if this is needed but just an idea.

I think using the BOSL2 library would be useful here, particularly to take advantage of the randomization functions, but also, if needed, it could also help for creating more complex shapes. I don't mind if this library is included, so please feel free to use it if you think it is helpful.

Could you provide the OpenSCAD code for this? It doesn't need to generate multiple stones in the same file, one at a time is fine.

[Assistant]
simple_stone_generator.scad:
```
/*

    STONE Generator

    Fernando Jerez 2017
    License: CC-NC

*/

// This is only to force Customizer create many files. Changes doesnt matter. Just click CREATE THING
part = "one"; // [one:Stone #1, two:Stone #2, three:Stone #3, four:Stone #4,five:Stone #5,six:Stone #6,seven:Stone #7,eight:Stone #8,nine:Stone #9,ten:Stone #10]

// : More corners --> More spheric stones
number_of_corners = 20; // [5:30]

// : Deforms stone in vertical
z_scale = 1; // [0.2:0.1:3]

/* [Hidden] */
radius = 20;
corner_size = 2;

// Example
scale([1,1,z_scale])
randomRock(radius,corner_size,number_of_corners);

// Module...
module randomRock(radius,corner_size,number_of_corners){
    // Draw rock
    hull(){
        // Make a hull..
        for(i=[0:number_of_corners]){
            // random position in sphere
            y = rands(0,360,1)[0];
            z = rands(0,360,1)[0];
            rotate([0,y,z])

            // translate radius (minus half of corner size)
            translate([radius-corner_size*0.5,0,0])

            // draw cube as corner
            rotate([rands(0,360,1)[0],rands(0,360,1)[0],rands(0,360,1)[0]]) // random rotation
            cube(rands(corner_size*0.5,corner_size,1)[0],center = true);

        }
    }

    // Done
}
```


[User]
Okay, I'd like a parametric OpenSCAD design for generating rock formations, kind of like a small pile of stones. I saw a design on Thingiverse that did something similar and I'm hoping to get something similar but a bit more flexible. I'm imagining a central, larger rock surrounded by smaller ones.

Here's the breakdown:

*   **Central Rock:** This should be the largest stone and its basic shape should be determined by a number of corners. More corners should lead to a rounder, more "spherical" shape, while fewer corners will look more jagged. I'd like to control the number of corners via a variable. I also want to be able to scale the central rock vertically, effectively making it flatter or taller.

*   **Medium Stones:** There should be a variable number of medium-sized stones scattered around the central rock. These should be smaller than the main rock, but not too small. They should appear to orbit it, but with some randomness.

*   **Small Stones:** Similar to the medium stones, there should be a variable number of small stones, even smaller than the medium ones. These will also orbit the central rock, with more randomness in their placement.

*   **Randomization:** I'd like the positions of the medium and small stones to be randomized. The sizes of all stones should also have some random variation. The "corners" of the rocks should also be a bit random in their rotation and size.

*   **Customization:** I need to be able to control the number of corners on the main stone, its vertical scale, and the number of medium and small stones.

*   **Cutaway:** Finally, I'd like to be able to cut the formation with a box, effectively removing a portion of the formation. This is useful for fitting the formation into a game board or model base.

I don't need to control the radius of the overall formation with an explicit variable, but all the stones should be more or less contained inside an imaginary circle/sphere/cylinder. It would be ideal if each 'corner' of the rocks was built using a small cube, which was then hull'd together to create the shapes, like the example I saw.

The example I'm basing this on seems to use only the built-in OpenSCAD primitives and functions, but if there are any useful modules in a library like MCAD or BOSL that would help, that would be cool too. I don't mind if it uses any specific functions from libraries, I just need it to be parametric and give me control over the rock formation.

Could you help me design this?

[Assistant]
rock_formation_customizer.scad:
```
/*
    Rock Formations Generator

    Fernando Jerez 2017
    License: CC-NC

*/

// This is only to force Customizer create many files. Changes doesn´t matter. Just click CREATE THING
part = "one"; // [one:Formation #1, two:Formation #2, three:Formation #3, four:Formation #4,five:Formation #5]

// : More corners --> More 'spheric' central stone
number_of_corners = 25; // [5:30]

// : Deforms central stone in vertical
stone_scale = 1; // [0.2:0.1:3]

// Number of medium size stones
medium_stones = 15; // [5:30]

// Number of small stones
small_stones = 30; // [5:30]

/* [Hidden] */
radius = 20;
corner_size = 2;

// Example
intersection(){
    union(){

        // big central stone
        scale([1,1,stone_scale])

        randomRock(radius,corner_size,number_of_corners);

        // medium size stones
        if(medium_stones>0){
            for(i=[1:medium_stones]){
                // random position in 'circle'
                z = rands(0,360,1)[0];
                rotate([0,0,z])

                // translate radius
                translate([rands(radius*0.6,radius*0.9,1)[0],0,0])
                randomRock(rands(radius*0.3,radius*0.5,1)[0],corner_size*0.5,15);
            }
        }

        // small stones
        if(small_stones>0){
            for(i=[0:small_stones]){
                // random position in 'circle'
                z = rands(0,360,1)[0];
                rotate([0,0,z])

                // translate radius
                translate([rands(radius*0.7,radius*1.15,1)[0],0,0])
                randomRock(rands(radius*0.1,radius*0.3,1)[0],corner_size*0.5,10);
            }
        }

    }
    // cut half of figure
    translate([-50,-50,0]) cube(100);
}

// Module randomRock : draws a random rock
module randomRock(radius,corner_size,number_of_corners){
    // Draw rock
    hull(){
        // Make a hull..
        for(i=[0:number_of_corners]){
            // random position in 'sphere'
            y = rands(0,360,1)[0];
            z = rands(0,360,1)[0];
            rotate([0,y,z])

            // translate radius (minus half of corner size)
            translate([radius-corner_size*0.5,0,0])

            // draw cube as corner
            rotate([rands(0,360,1)[0],rands(0,360,1)[0],rands(0,360,1)[0]]) // random rotation
            cube(rands(corner_size*0.5,corner_size,1)[0],center = true);

        }
    }

    // Done!
}
```


[User]
I'm looking to create a bicycle light mount that can be customized for different handlebars and flashlights. I've seen a few designs, and I'd like to build something similar to the "bikelightmountV2custom.scad" design I've been using for years, but I want a fresh start using a different design approach. I need it to be parametric so I can adjust it for any bike or light.

Here's what I need it to do:

**Core Functionality:**

*   **Handlebar Clamp:** The mount needs to clamp securely to the handlebars. It should be made of two mirrored pieces that bolt together.
*   **Light Clamp:** It should have a clamp to hold the flashlight. This also needs to be two mirrored pieces that bolt together.
*   **Adjustable Drop:** The light clamp should be connected to the handlebar clamp via a drop piece that allows for some vertical adjustment using a bolt.
*   **Bolt Holes:** There should be bolt holes for all the connections - the two handlebar clamp pieces, the two light clamp pieces, and the bolt that connects the drop to the handlebar clamp. The bolt holes for the clamps should have recesses for the bolt heads.
*   **Sturdy Design:** The design needs to be fairly robust. I would like to see a flange where the flashlight clamp and flashlight meet and, bracing from the bracket to the light clamp for added support and stability.
*   **Customizable Dimensions:** Everything about the design should be parametric including:

    *   **Handlebar Diameter:**  I need to be able to specify the diameter of my handlebars so that the clamp fits correctly.
    *   **Handlebar Clamp Width and Thickness:** I'd like to set how wide and thick the material of the handlebar clamp pieces are.
    *   **Handlebar Clamp Bolt Diameters and Cap Diameters:**  I need to specify the diameter of the bolts and their caps used for the clamp.
    *   **Drop Length:** How far the light is from the handlebars should be customizable.
    *   **Light Diameter and Length:** The diameter and length of my flashlight needs to be a parameter.
    *   **Light Clamp Thickness and Flange Length:** The light clamp should be adjustable in terms of its thickness, as well as the length of the flange that will wrap around the flashlight.
    *   **Light Clamp Bolt Diameter:** I want to specify the bolt diameter for the light clamp.
    *   **Material Spacing/Gaps:** The gap between the different parts should be configurable.
    *   **Bracket Minimum Length:** How far the bracket extends out from the Light Clamp body.

*   **Units:** I'm used to working in inches, but I'd like to be able to easily switch to millimeters.

**Additional Notes**

*   I would like to have the option to have the drop connector extend further than just a single bolt point. That is, I'd like the drop connector to have a flange to allow for stronger connections on the handlebar side.
*   I'm okay with using simple shapes like cylinders and cubes for the most part, but I'd like to see hulling used for the drop flange, as in the original design.
*   I don't need any extra fancy features, just something that is solid, reliable, and adjustable.

I think that's all. I'm hoping you can generate the necessary OpenSCAD files from scratch for this. I’m not looking to improve my current design, but rather use it as a baseline for something similar. Thanks!

[Assistant]
bikelightmountV2custom.scad:
```
/*******************************************************************
/  Bike Light Mount
/  Ryan Stachurski, 2012-05-28
/  V2 update 2017-07-04: Taper drop spacer in order to improve fit
/                        Comments modified to allow customizer app
/
/  --------------------------------------------
/  Mount to attach a flashlight to your handlebars.
/  Durable, and easy to aim and adjust.
/  Needs 6 skinny nuts and bolts, and one about 1/4" for the pivot.
/  Adjust the values for your handlebars and flashlight ;)
/*******************************************************************/

/* [General] */
// Layout Spacing
PART_GAP = 0.25;
// How wide would you like the Handlebar Clamp material?
HANDLEBAR_CLAMP_WIDTH = .3;
// How thick would you like the Handlebar Clamp material?
HANDLEBAR_CLAMP_THICKNESS = .2;
// What diameter are the bolts attaching the clamps together? ( 6 nuts and bolts needed )
HANDLEBAR_CLAMP_BOLT_DIAMETER = 0.1 ;
// What is the diameter of those caps?
HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER = 0.215 ;
// What is the diameter of the big bolt that attaches the light to the clamps? ( 1 larger nut and bolt needed )
HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER = 0.25;
// How far away from your handlebars do you want your light? ( Keep it close, but adjustable )
HANDLEBAR_CLAMP_DROP_LENGTH = 2.75;
// How thick would you like the light clamp flange?
LIGHT_CLAMP_FLANGE = 0.3;
// How thick would you like the light clamp?
LIGHT_CLAMP_THICKNESS = .2;
// What is the diameter of the big bolt that attaches the light to the clamps? ( similar as above, but you can adjust it if you'd like for the light clamp )
LIGHT_CLAMP_BOLT_DIAMETER = 0.25;

/* [Bicycle Measurements] */
// Constants for Handlebar Clamps in inches
// Measure the thickness of your handlebars
HANDLEBAR_TUBE_DIAMETER = 1.25 ;
// Measure your bikes handlebar bracket width. ( The light clamps will need to span this )
LIGHT_CLAMP_BRACKETL_MIN = 2;

/* [Light Measurements] */

// What is the diameter of your light?
LIGHT_DIAMETER = 1.04;
// What length along the light would you like to clamp to? ( There might be a sweet spot to grab )
LIGHT_CLAMP_WIDTH = 0.71;

/* [Hidden] */
//derived
	HC_MAXX = HANDLEBAR_TUBE_DIAMETER/2 + HANDLEBAR_CLAMP_WIDTH; //note width is only used because of shared value
	HC_MAXY = HANDLEBAR_TUBE_DIAMETER/2 + HANDLEBAR_CLAMP_THICKNESS;
	HC_BOLTX = HC_MAXX - HANDLEBAR_CLAMP_WIDTH/2; //note width is only used because of shared value

//derived
	LC_MAXX = LIGHT_DIAMETER/2 + LIGHT_CLAMP_FLANGE;
	LC_MAXY = LIGHT_DIAMETER/2 + LIGHT_CLAMP_THICKNESS;
	LC_BOLTX = LC_MAXX - LIGHT_CLAMP_FLANGE/2;
	SUPX = LC_MAXY-sqrt(pow(LC_MAXY,2)-pow(LIGHT_DIAMETER/2,2)); //Used to calculate where brace triangle meets cylinder
	SUPY = (LIGHT_CLAMP_WIDTH-(LIGHT_CLAMP_THICKNESS*2+LIGHT_CLAMP_BOLT_DIAMETER))/2;
	BRACKETL = LIGHT_DIAMETER+(LIGHT_CLAMP_FLANGE-HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER); //length of bracket: don't cover bolt
	BRACKETR = LIGHT_CLAMP_THICKNESS+LIGHT_CLAMP_BOLT_DIAMETER/2; //radius of bracket

module BoltCut () {
	union () {
		cylinder (h=HC_MAXY, r=HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER/2, center=false); //bolt cap inset
		cylinder (h=HC_MAXY*2, r=HANDLEBAR_CLAMP_BOLT_DIAMETER/2, center=true); //bolt shaft
	}//end union
} //end BoltCut

module ClampBoltCut () {
	translate ([HC_BOLTX,-(HANDLEBAR_CLAMP_WIDTH-HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER/2),0]) rotate ([90,0,0]) BoltCut ();
} //end ClampBoltCut

module LightClampBoltCut () {
	translate ([LC_BOLTX,-(LIGHT_CLAMP_FLANGE-HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER/2),0]) rotate ([90,0,0]) BoltCut ();

} //end LightClampBoltCut

module HandlebarClamp () {
	difference () {
		//Start object

		union () {
		cylinder (h=HANDLEBAR_CLAMP_WIDTH, r=HC_MAXY, center = true);
		cube(size=[HC_MAXX*2, HANDLEBAR_CLAMP_WIDTH * 2, HANDLEBAR_CLAMP_WIDTH], center = true);
		} //end union

		//Remove this...(cut out handlebar tube)
		cylinder (h=HANDLEBAR_CLAMP_WIDTH+1, r=HANDLEBAR_TUBE_DIAMETER/2, center=true);

		//and remove this.HANDLEBAR_CLAMP_WIDTH..(cut out BOLTs)
		ClampBoltCut (); mirror ([1,0,0]) ClampBoltCut();

		//and remove this...(to cut in half)
		translate ([-(HC_MAXX+.5),0,-(HANDLEBAR_CLAMP_WIDTH+1)/2]) cube(size=[HC_MAXX*2+1,HC_MAXY+1, HANDLEBAR_CLAMP_WIDTH+1]);

	} //end difference
} //end HandlebarClamp

module HandlebarClampDrop () {
	difference () {

		// Start Object: Drop mass
		union (){
			HandlebarClamp ();  //start with another Handlebar Clamp

			translate ([0,0,-HANDLEBAR_CLAMP_WIDTH/2]) linear_extrude (height=HANDLEBAR_CLAMP_WIDTH) {
				hull () {
					translate ([0, -(HANDLEBAR_CLAMP_DROP_LENGTH-((HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2)+HANDLEBAR_CLAMP_WIDTH)), 0])  circle (r=(HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2)+HANDLEBAR_CLAMP_WIDTH);
					translate ([0,-HC_MAXY/2,(HANDLEBAR_CLAMP_WIDTH/2)]) square ([(HANDLEBAR_CLAMP_WIDTH-HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER)+HANDLEBAR_TUBE_DIAMETER, HC_MAXY], center=true);
				} //end hull
			} //end linear extrude

			if (LIGHT_CLAMP_BRACKETL_MIN>BRACKETL) {

                hull(){

				translate ([0,-(HANDLEBAR_CLAMP_DROP_LENGTH-((HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2)+HANDLEBAR_CLAMP_WIDTH)),0]) cylinder (h=(LIGHT_CLAMP_BRACKETL_MIN - BRACKETL)/2 + HANDLEBAR_CLAMP_WIDTH/2, r=(HANDLEBAR_CLAMP_WIDTH/4 + HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2));

                translate ([0,-(HANDLEBAR_CLAMP_DROP_LENGTH-((HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2)+HANDLEBAR_CLAMP_WIDTH)),0]) cylinder (h=(LIGHT_CLAMP_BRACKETL_MIN - BRACKETL)/4 + HANDLEBAR_CLAMP_WIDTH/2, r=(HANDLEBAR_CLAMP_WIDTH/2 + HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2));

                }//end hull

			} //end if

		} //end union

		// Subtract for handlebar
		cylinder (h=HANDLEBAR_CLAMP_WIDTH+1, r=HANDLEBAR_TUBE_DIAMETER/2, center=true);

		// Subtract fot the drop bolt
		 translate ([0, -(HANDLEBAR_CLAMP_DROP_LENGTH-((HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2)+HANDLEBAR_CLAMP_WIDTH)), 0]) cylinder (h=LIGHT_CLAMP_BRACKETL_MIN/2 + HANDLEBAR_CLAMP_WIDTH/2+1, r=HANDLEBAR_CLAMP_DROP_BOLT_DIAMETER/2, center=true);

	} //end difference

} //end HandlebarClampDrop

module LightClampBase () {
		union () {
		cylinder (h=LIGHT_CLAMP_WIDTH, r=LC_MAXY, center = true);
		cube(size=[LC_MAXX*2, LIGHT_CLAMP_FLANGE* 2, HANDLEBAR_CLAMP_WIDTH], center = true);
		} //end union
} //end LightClamp

module LightClampWithSupport () {
	difference () {

		//Start with a nice chunk of material...
		union (){
			LightClampBase (); //Base material
			//Now project some of that base material in order to hull() to provide flange support
			rotate ([90,0,0]) linear_extrude (height=LIGHT_CLAMP_FLANGE) hull ()  projection (cut = false)  rotate ([-90,0,0]) LightClampBase(); //Draw material for flange support
		} //end union

		//Remove this...(cut out handlebar tube)
		cylinder (h=LIGHT_CLAMP_WIDTH+1, r=LIGHT_DIAMETER/2, center=true);

		//and remove this...(cut out BOLTs) ***These bolts are the same size as the HandlebarClamp bolts
		LightClampBoltCut (); mirror ([1,0,0]) LightClampBoltCut();

		//and remove this...(to cut in half)
		translate ([-(LC_MAXX+.5),0,-(LIGHT_CLAMP_WIDTH+1)/2]) cube(size=[LC_MAXX*2+1,LC_MAXY+1, LIGHT_CLAMP_WIDTH+1]);

	} //end difference

} //end LightClampWithSupport

module LightClampWithBoltMount () {
	difference () {
		union () {
			LightClampWithSupport ();
			translate ([0,-(LIGHT_DIAMETER/2+LIGHT_CLAMP_BOLT_DIAMETER/2),0]) rotate ([0,90,0]) cylinder (h=BRACKETL, r=BRACKETR, center=true); //Bolt bracket
			translate ([0,-(LIGHT_DIAMETER/2+LIGHT_CLAMP_BOLT_DIAMETER/2)/2,0]) cube (size=[BRACKETL,LIGHT_DIAMETER/2+LIGHT_CLAMP_BOLT_DIAMETER/2,BRACKETR*2], center=true); //Brace under bracket
			translate ([BRACKETL/2,-(LC_MAXY)/2,BRACKETR]) rotate ([90,0,-90]) linear_extrude (height=BRACKETL) polygon(points=[ [0,0],[SUPX,0],[0,SUPY] ] ); //Bracket support top
			mirror ([0,0,1]) translate ([BRACKETL/2,-(LC_MAXY)/2,BRACKETR]) rotate ([90,0,-90]) linear_extrude (height=BRACKETL) polygon(points=[ [0,0],[SUPX,0],[0,SUPY] ] ); //bottom
		} //end union

		translate ([0,-(LIGHT_DIAMETER/2+LIGHT_CLAMP_BOLT_DIAMETER/2)-0.01,0]) rotate ([0,90,0]) cylinder (h=1+LIGHT_DIAMETER+(LIGHT_CLAMP_FLANGE-HANDLEBAR_CLAMP_BOLT_CAP_DIAMETER)/2, r=LIGHT_CLAMP_BOLT_DIAMETER/2, center=true); //Cut out Bolt Hole

		cylinder (h=LIGHT_CLAMP_WIDTH+1, r=LIGHT_DIAMETER/2, center=true);

	} //end difference

} //end LightClampWithBoltMount

//*******************************Drawing********************************

// Draw Handlebar Clamp
$fa=2; $fs=0.05;   //

translate ([0,0,HANDLEBAR_CLAMP_WIDTH/2]) HandlebarClamp ();

translate ([0,PART_GAP,HANDLEBAR_CLAMP_WIDTH/2]) mirror ([0,1,0]) HandlebarClampDrop ();

translate ([-(PART_GAP+HC_MAXX*2),0,HANDLEBAR_CLAMP_WIDTH/2]) HandlebarClamp ();

translate ([-(PART_GAP+HC_MAXX*2),PART_GAP,HANDLEBAR_CLAMP_WIDTH/2]) mirror ([0,1,0]) HandlebarClampDrop ();

translate ([LC_MAXX + HC_MAXX + PART_GAP,0,LIGHT_CLAMP_WIDTH/2]) LightClampWithSupport ();

translate ([LC_MAXX + HC_MAXX + PART_GAP, PART_GAP, LIGHT_CLAMP_WIDTH/2]) mirror ([0,1,0]) LightClampWithBoltMount ();

```


[User]
I need a customizable 3D printable cable guide, kind of like a wall-mounted hook but with a more robust, enclosed structure.

The basic shape should be a U-shape, with a backplate that mounts to the wall. The "U" part should have a top and bottom "arm" that are roughly parallel and jut out from the backplate, with a connecting piece between the tips of these arms. The bottom arm will essentially hold the cables while the top arm and connecting piece form a top portion that sort of keeps them in place.

I'd like to be able to control the overall height of the structure, the thickness of the walls (which should be consistent throughout), the width of the backplate, and the length of the entire U shape as a unit. I also want the height of the cable-holding area (the lower arm) to be adjustable. Think of the entire thing as being constructed from five rectangles.

For mounting to the wall, I'll need two or more screw holes on the backplate that are centered on the backplate. The number and locations of the screw holes should be customizable, and the screw holes should be counter-bored so that screw heads sit flush.

Here are some parameters I envision:

*   `height`: Overall height of the structure.
*   `wall`: Thickness of the walls.
*   `width`: Width of the backplate and the overall cable guide.
*   `length`: Length of the U shape
*   `clamb_height`: Height of the cable-holding area (lower arm).
*   `top_length`: Length of the top arm, which is shorter than the bottom arm.
*   `num_holes`: Number of screw holes.
*   `radius`: Radius of the screw holes.

Could you create an OpenSCAD file (or files if necessary) that I can use? I'd prefer not to use any extra libraries if at all possible.

[Assistant]
hanging_cable_mount.scad:
```
// Height [mm]
height = 60; // [10:1:100]
// Wall strength [mm]
wall = 3; // [1:0.2:10]
// Width [mm]
width = 14; // [10:0.2:40]
// Length [mm]
length = 40; // [10:1:80]
// Clamp height [mm]
clamb_height = 45; // [10:1:100]
// Top Length [mm]
top_length = 38; // [10:1:80]

// Number of screw holes [mm]
num_holes = 2; // [1:1:10]
// Small hole radius [mm]
radius = 2; // [1:0.2:4]

rotate([0,90,0])
difference(){
    union() {
        translate([0,length/2-wall/2,-height/2+clamb_height/2+wall/2])
        cube([width, wall, clamb_height], center=true);
        translate([0,0,-height/2+wall/2])
        cube([width, length, wall], center=true);
        translate([0,-length/2+wall/2,0])
        cube([width, wall, height], center=true);
        translate([0,-length/2+top_length/2,height/2-wall/2])
        cube([width, top_length, wall], center=true);
    }

    for(i = [0:(num_holes-1)]){
        translate([0,top_length/num_holes*i-length/2+top_length/num_holes/2+wall/2,height/2-(wall+2)/2-1])
        cylinder(r=radius, h=wall+2, $fn=32);
        translate([0,top_length/num_holes*i-length/2+top_length/num_holes/2+wall/2,-height/2-(wall+2)/2+1])
        cylinder(r=radius+2, h=wall+2, $fn=32);
    }
}
```