[User]
Hey, I'm looking to generate some corner connectors for different sizes of square aluminum tubes, and I need your help with OpenSCAD. I have some initial code that sort of does it, but it's a bit clunky and not as parametric as I'd like.

Basically, I need a design that creates a corner connector that fits *inside* the aluminum tubes. It should have three "legs," one for each tube forming a corner (two extending out, one downward). The key parameters I need to be able to adjust are:

*   **Tube\_Outside\_Size**: The outside dimension of the square tube.
*   **Wall\_Thickness**: The wall thickness of the tube.
*   **Bottom\_Screw\_Diameter**: The diameter of the screw that will go through the bottom leg into the tube.
*   **Bottom\_Screw\_Recess\_Diameter**: The diameter of the countersunk recess for that bottom screw.
*  **Leg\_Screw\_Diameter**: The diameter of the screws for the two extending legs (these are all the same size screws)

The connector should have screw holes in the center of each of the legs to attach to the tube. The bottom leg needs both a through-hole for a screw and a countersunk area for the screw head. The other two legs only need the through-holes.

I'd like to be able to easily change the tube size and wall thickness, and the connector should adjust accordingly.  It needs to be designed to print correctly; the top of the model as viewed in OpenSCAD should be the bottom of the model when printed. I'd like for the code to be clean, well commented, and parametric.

I'm not using any special libraries yet, so just the standard OpenSCAD functions are perfect. Could you generate the necessary `.scad` file(s) for this?

[Assistant]
ParametricTubeCorner.scad:
```
// Parametric Square Aluminum Tube Corner Box Connector
// Original by sandfrog
// Updated by madmike8
// Just Change the Tube Size and Wall Thickness Varibles
Tube_Outside_Size = 19;
Wall_Thickness = 1.7;
Bottom_Screw_Diameter = 4;
Bottom_Screw_Recess_Diameter = 8;
Leg_Screw_Diameter = 3;

//Do not Change anything Below.

TubeInsideSize = Tube_Outside_Size - (Wall_Thickness*2);
translate([0,0,19])rotate([180,0,0])union()
{
 {

// Grundwürfel - Basic Cube
	difference() {
		cube([Tube_Outside_Size,Tube_Outside_Size,Tube_Outside_Size]);
		translate([(Tube_Outside_Size/2),(Tube_Outside_Size/2),0])
	// MDF-Verschraubung - Screwing
		cylinder(Tube_Outside_Size,r=(Bottom_Screw_Diameter/2), $fn=100);
		translate([(Tube_Outside_Size/2),(Tube_Outside_Size/2),TubeInsideSize])
	// Senkkopfschrauben-Vertiefung - Countersunk recess
		cylinder(3.45,r=(
Bottom_Screw_Recess_Diameter/2), $fn=100);
	}
}

translate	([Tube_Outside_Size,Wall_Thickness,Wall_Thickness]) {
	// Verbindungswürfel-links - Right Leg connection cube
	difference() {
		cube([TubeInsideSize,TubeInsideSize,TubeInsideSize]);
		translate([(TubeInsideSize/2),(TubeInsideSize/2),0])
		cylinder(Tube_Outside_Size,r=(Leg_Screw_Diameter/2), $fn=100);
	}
}

translate	([Wall_Thickness,Tube_Outside_Size,Wall_Thickness]) {
	// Verbindungswürfel-rechts - Left Leg connection cube
	difference() {
		cube([TubeInsideSize,TubeInsideSize,TubeInsideSize]);
		translate([(TubeInsideSize/2),(TubeInsideSize/2),0])
		cylinder(Tube_Outside_Size,r=(Leg_Screw_Diameter/2), $fn=100);
	}
}

translate	([Wall_Thickness,Wall_Thickness,
(-1*TubeInsideSize)]) {
	// Verbindungswürfel-rechts - Bottom connection cube
	difference() {
		cube([TubeInsideSize,TubeInsideSize,TubeInsideSize]);
		translate([(TubeInsideSize/2),(TubeInsideSize/2),0])
		cylinder(Tube_Outside_Size,r=(Bottom_Screw_Diameter/2), $fn=100);
		translate([(TubeInsideSize/2),0,(TubeInsideSize/2)])
		rotate([0,90,90])cylinder(Tube_Outside_Size,r=(Leg_Screw_Diameter/2), $fn=100);

	}
}
}
```


[User]
I'd like to create a customizable "Steve" character from Minecraft using OpenSCAD. I'm thinking of a design where I can control various aspects like the overall size, head rotations (left/right, up/down), eyebrow angles, mouth shape, body rotation, and arm/leg rotations.

Specifically, I'd want these parameters:

*   **Global:**
    *   `size`: Overall size of the character. Should be adjustable from about 1 to 100.
*   **Head:**
    *   `rotationLeftRightHead`: Rotation of the head left and right, likely with a range of -130 to 130 degrees.
    *   `rotationUpDowntHead`: Rotation of the head up and down, maybe from -45 to 45 degrees.
    *   `rotationLeftEyebrow`: Rotation of the left eyebrow, let's say -10 to 10 degrees.
    *   `rotationRightEyebrow`: Rotation of the right eyebrow, also -10 to 10 degrees.
    *  `rotationMouth`: Rotation of the mouth, perhaps -20 to 20 degrees.
*   **Body:**
    *   `bodyRotation`: Rotation of the body, adjustable from -45 to 45 degrees.
*   **Arms:**
    *   `rotationLeftArm`: Rotation of the left arm, -90 to 90 degrees.
    *   `rotationRightArm`: Rotation of the right arm, -90 to 90 degrees.
*   **Legs:**
    *   `rotationLeftLeg`: Rotation of the left leg, from -90 to 90 degrees.
    *   `rotationRightLeg`: Rotation of the right leg, also -90 to 90 degrees.

The character's parts should be basic blocks. The head should be a cube with separate cubes for eyebrows, and a subtractive process to form the eyes and mouth. The body should also be a cube, with a cylinder on the top and bottom. Arms and legs will be simple blocks - cubes, with a cylinder on each leg's base for easy printing.

I need the different pieces to move correctly based on the body rotation; the arms and legs should be attached to the body and move in relation to it. The head should be attached to the body as well and rotate along with the body and also independently.

Could you create the OpenSCAD file(s) for this? I’d prefer everything to be in one file. I don’t need any external libraries.

[Assistant]
Steve.scad:
```
/* [Global] */

// Overall size
size = 15; // [1:1:100]

/* [Head] */
//Rotation left/right
rotationLeftRightHead = 0; // [-130:130]

//Rotation up/down
rotationUpDowntHead = 0; // [-45:45]

//Rotation left eyebrow
rotationLeftEyebrow = 0; // [-10:0.5:10]
//Rotation right eyebrow
rotationRightEyebrow = 0; // [-10:0.5:10]
//Rotation mouth
rotationMouth = 0; // [-20:0.5:20]

/* [Body] */
//Rotation
bodyRotation = 0; // [-45:0.5:45]

/* [Arms] */
//Rotation left arm
rotationLeftArm = 0; // [-90:90]
//Rotation right arm
rotationRightArm = 0; // [-90:90]

/* [Legs] */
//Rotation left leg
rotationLeftLeg = 0; // [-90:90]
//Rotation right leg
rotationRightLeg = 0; // [-90:90]

module arm(size) {
    cube([size, size, size*3], center=true);
}

module leg(size) {
    cube([size, size, size*3], center=true);
    translate([0,0,size*1.5])rotate([0,90,0])cylinder(r=size/2, h=size,center=true);
}

module body(size, rotation) {
    translate([0,0,-size/4])rotate([rotation,0,0]) translate([0,0,size/4]){
    cube([size*2,size,size*3], center=true);
    translate([0,0,-size*1.5])rotate([0,90,0])cylinder(r=size/2, h=size*2, center=true);
    }
}

module head(x,y,z,rle, rre, rlm, rrm, rotationLeftRightHead,rotationUpDowntHead) {
    translate([0,0,-z/2])rotate([rotationUpDowntHead,0,rotationLeftRightHead]) {
        translate([0,0,z/2]) {
    difference() {
        union() {
            //Main head
            cube([x,y,z], center=true);
            //Left eyebrow
            translate([-x/2+x/3.5,-y/2.1,z/6])rotate([0,rle,0])cube([x/5,y/10,z/13], center=true);
            //Right eyebrow
            translate([x/2-x/3.5,-y/2.1,z/6])rotate([0,-rre,0])cube([x/5,y/10,z/13], center=true);
        };
        //Left eye
        translate([-x/2+x/3.5,-y/2.1,z/13])cube([x/5,y/10,z/12], center=true);
        //Right eye
        translate([x/2-x/3.5,-y/2.1,z/13])cube([x/5,y/10,z/12], center=true);
        //Mouth
        translate([0,-y/2.1, -z/5]) {
            translate([-x/7,0,0])rotate([0,rlm,0])cube([x/2.75, y/10, z/15], center=true);//left
            translate([x/7,0,0])rotate([0,-rrm,0])cube([x/2.75, y/10, z/15], center=true);//right
        };

    };
       //Mouthfix
    if (rlm > 0) {
        translate([0,-y/2+y/20, -z/3.75]) {
            translate([-x/7,0,0])rotate([0,rlm,0])cube([x/2, y/10, z/15], center=true);//left
            translate([x/7,0,0])rotate([0,-rrm,0])cube([x/2, y/10, z/15], center=true);//right
        };
    } else if (rlm < 0) {
        translate([0,-y/2+y/20, -z/7.5]) {
            translate([-x/7,0,0])rotate([0,rlm,0])cube([x/2, y/10, z/15], center=true);//left
            translate([x/7,0,0])rotate([0,-rrm,0])cube([x/2, y/10, z/15], center=true);//right
        };
    };
}
}

}

body(size, bodyRotation);

if (bodyRotation >= 0) {

    translate([0,-sin(bodyRotation)*size,size*2.5-sin(bodyRotation)*size])head(size*2, size*2, size*2, rotationLeftEyebrow, rotationRightEyebrow,rotationMouth, rotationMouth,rotationLeftRightHead,rotationUpDowntHead);

    translate([size/.675,-sin(bodyRotation)*size*1.25,size-sin(bodyRotation)*size/2])rotate([-rotationLeftArm,0,0])translate([0,0,-size])arm(size);
    translate([-size/.675,-sin(bodyRotation)*size*1.25,size-sin(bodyRotation)*size/2])rotate([-rotationRightArm,0,0])translate([0,0,-size])arm(size);

    translate([size/2,sin(bodyRotation)*size*1.25,-size*2+sin(bodyRotation)*size/2+size/2])rotate([-rotationLeftLeg,0,0])translate([0,0,-size*1.5])leg(size);
    translate([-size/2,sin(bodyRotation)*size*1.25,-size*2+sin(bodyRotation)*size/2+size/2])rotate([-rotationRightLeg,0,0])translate([0,0,-size*1.5])leg(size);

} else {
    translate([0,-sin(bodyRotation)*size,size*2.5+sin(bodyRotation)*size])head(size*2, size*2, size*2, rotationLeftEyebrow, rotationRightEyebrow,rotationMouth, rotationMouth,rotationLeftRightHead,rotationUpDowntHead);

    translate([size/.675,-sin(bodyRotation)*size*1.25,size+sin(bodyRotation)*size/2])rotate([-rotationLeftArm,0,0])translate([0,0,-size])arm(size);
    translate([-size/.675,-sin(bodyRotation)*size*1.25,size+sin(bodyRotation)*size/2])rotate([-rotationRightArm,0,0])translate([0,0,-size])arm(size);

    translate([size/2,sin(bodyRotation)*size*1.25,-size*2-sin(bodyRotation)*size/2+size/2])rotate([-rotationLeftLeg,0,0])translate([0,0,-size*1.5])leg(size);
    translate([-size/2,sin(bodyRotation)*size*1.25,-size*2-sin(bodyRotation)*size/2+size/2])rotate([-rotationRightLeg,0,0])translate([0,0,-size*1.5])leg(size);
}

```


[User]
I'd like to design a parametric spice rack that can hold multiple cylindrical containers, and I want to be able to customize it fairly easily.

Specifically, I need the following parameters:

*   `container_diameter`: This sets the diameter of the spice containers. I'd like a good range here, from 14mm up to 55mm.
*   `bottom_opening`: A yes/no option to determine if there's a hole in the bottom of the holder. I want this to be able to help with removing the container.
*   `front_opening`: Another yes/no option to decide if there's a cutout in the front of the holder to make grabbing the container easier.
*   `containers`: The number of spice containers the rack should hold. A range of 1 to 5 containers should be good.

The overall design should be a set of connected holders for the cylindrical containers, arranged in a line. The holder itself should have a curved front, and a flat back. The flat back should include a small screw hole for mounting. I’d like the support structure to have some thickness, maybe 2mm, but this should be calculated from the container diameter. The screw hole should use standard M3 hardware, so you might want to define the screw dimensions in the code. I think a countersunk screw hole would work best, and I want the screw to be flush with the surface of the support piece.. I don't need separate files, just one parametric scad file will be perfect.

[Assistant]
spicerack.scad:
```
container_diameter = 48; // [14:55]
bottom_opening = "yes"; //[yes, no]
front_opening = "yes"; //[yes, no]
containers = 3; // [1:5]

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

/* [Hidden] */
// Spice rack
$fn=100;

// Screw
head_d1 = 6.5;
d1 = 2.7;
d2 = 2;
head_h = 2.75;
length= 10;

module screw(head_d1, d1, d2=d1, head_h, length, countersunk=false){
	union(){
		if (countersunk)
			cylinder(h = head_h, r1 = head_d1/2, r2 = d1/2);
		else
			cylinder(h = head_h, r = head_d1/2);

		translate([0, 0, head_h])
			cylinder(h = length, r1 = d1/2, r2 = d2/2);
	}
}

// reference Spice container
cont_max_height = 120;
cont_min_height = 50;
cont_dia = container_diameter;
thickness = 2;

module spice_container(){
	cylinder(h=cont_max_height, r=cont_dia/2);
}

// parts that holds the spice container
module support(thickness, cont_dia, bottom_opening, front_opening){
	height = cont_min_height * 0.8;
	radius = thickness + cont_dia/2;
	back_factor = 1; //defines the width of the flat back

	union(){
		difference(){
			hull(){
				cylinder(h=height, r=radius);
				translate([-radius, -radius*(back_factor/2), 0])
					cube(size=[thickness*2, radius*back_factor,height]);
			}
			translate([0, 0, thickness]) spice_container();
			if (front_opening == "yes"){
				translate([9*cont_dia/10, cont_dia, thickness * 4 + cont_dia/2.5]){
					rotate([90, 0, 0]){
						spice_container();
					translate([-cont_dia/2, 0, 0])
						cube(size=[cont_dia, cont_dia, cont_max_height]);

					}
				}
			}
			if (bottom_opening == "yes"){
				cylinder(h=cont_max_height, r=cont_dia/3);
			}
		}
	}

}

//spice_container();

rotate([0, 0, 270]) union(){
	for (i=[0:containers-1]){
		translate([0, (cont_dia+thickness)*i, 0,]){
			difference(){
				support(thickness, cont_dia, bottom_opening, front_opening);
				translate([head_h-thickness-cont_dia/2, 0, cont_min_height/2])
					rotate([0, 270, 0]) screw(head_d1, d1, d2, head_h, length, true);			}
		}
	}
}

```


[User]
Hey, I'm looking to design some finger rings for an exoskeleton. I've got some specific measurements and features I need, and I'd like them to be parametric so I can adjust them later if needed.

Essentially, I need rings for each finger (thumb, index, middle, ring, and pinky), and each ring will be sized based on the diameter of the finger joint, and have a set length. Some will be proximal rings and some distal rings, which have an extension on the back. I'd like a way to enable/disable the creation of rings for each finger.

Here are the specifics:

*   **Thumb:**
    *   Enable/Disable option: Yes/No
    *   DIP joint diameter: Variable, max 40mm
    *   Distal ring length: Variable, options for 8mm (Small), 10mm (Medium), or 12mm (Large)
*   **Index Finger:**
    *   Enable/Disable option: Yes/No
    *   PIP joint diameter: Variable, max 35mm
    *   DIP joint diameter: Variable, max 25mm
    *   Proximal ring length: Variable, options for 6mm (Small), 8mm (Medium), 10mm (Large), or 12mm (XLarge)
    *   Distal ring length: Variable, options for 6mm (Small), 8mm (Medium), or 10mm (Large)
*   **Middle Finger:**
    *   Enable/Disable option: Yes/No
    *   PIP joint diameter: Variable, max 35mm
    *   DIP joint diameter: Variable, max 25mm
    *  Proximal ring length: Variable, options for 6mm (Small), 8mm (Medium), 10mm (Large), or 12mm (XLarge)
    *   Distal ring length: Variable, options for 6mm (Small), 8mm (Medium), or 10mm (Large)
*   **Ring Finger:**
    *   Enable/Disable option: Yes/No
    *   PIP joint diameter: Variable, max 35mm
    *   DIP joint diameter: Variable, max 25mm
    *   Proximal ring length: Variable, options for 6mm (Small), 8mm (Medium), 10mm (Large), or 12mm (XLarge)
    *   Distal ring length: Variable, options for 6mm (Small), 8mm (Medium), or 10mm (Large)
*   **Pinky Finger:**
    *   Enable/Disable option: Yes/No
    *   PIP joint diameter: Variable, max 35mm
    *   DIP joint diameter: Variable, max 25mm
    *   Proximal ring length: Variable, options for 6mm (Small), 8mm (Medium), or 10mm (Large)
    *   Distal ring length: Variable, options for 6mm (Small), 8mm (Medium), or 10mm (Large)

**Ring Details:**

*   All rings should have a smooth, rounded profile.
*   The rings should have a small, centered cylinder extending from the back of the ring for cable guides. These should have a hole through them.
*   Distal rings should have an additional, larger extension on the back with a rounded shape, and an additional centered cable guide cylinder at the top of this extension.

Could you generate an OpenSCAD file (or multiple files, whatever makes the most sense) that I can use for this? I'm looking for a clean, parametric design that’s easy to modify later. I don't need any additional libraries, standard OpenSCAD should be fine. Thanks!

[Assistant]
Exo_Rings_Test_2.scad:
```

/* [Thumb] */

//Include Thumb? 0=No, 1=Yes
	Thumb=1; //[0,1]

//diameter of DIP joint (40mm max)
	tDIPd= 24 ;

//Distal ring length
	tDRL= 12 ; //[8:Small_8mm,10:Medium_10mm,12:Large_12mm]

//------------------------------------------------------------

/* [Index Finger] */

//Include Index Finger? 0=No, 1=Yes
	Index=1; //[0,1]

//diameter of PIP joint (35mm max)
	iPIPd= 20 ;

//diameter of DIP joint (25mm max)
	iDIPd= 17 ;

//Proximal ring length
	iPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	iDRL=8; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Middle Finger] */

//Include Middle Finger? 0=No, 1=Yes
	Middle=1; //[0,1]

//diameter of PIP joint (35mm max)
	mPIPd= 21 ;

//diameter of DIP joint (25mm max)
	mDIPd= 17 ;

//Proximal ring length
	mPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	mDRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Ring Finger] */

//Include Ring Finger? 0=No, 1=Yes
	Ring=1; //[0,1]

//diameter of PIP joint (35mm max)
	rPIPd= 20 ;

//diameter of DIP joint (25mm max)
	rDIPd= 17 ;

//Proximal ring length
	rPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	rDRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Pinky Finger] */

//Include Pinky Finger? 0=No, 1=Yes
	Pinky=1; //[0,1]

//diameter of PIP joint (35mm max)
	pPIPd= 18 ;

//diameter of DIP joint (25mm max)
	pDIPd= 16 ;

//Proximal ring length
	pPRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//Distal ring length
	pDRL= 6 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Hidden] */

//--------------------------------------//

module ring(InnerRad,Height){

	difference(){

		union(){

		translate([0,0,Height/2])
		difference(){

				//outer portion of ring
			union(){
				translate([0,0,Height/4])
				cylinder(r1=InnerRad+1.5,r2=InnerRad+3.5,h=Height/2,center=true);

				cylinder(r=InnerRad+2.5,h=Height/2,center=true);

				translate([0,0,-Height/4])
				cylinder(r1=InnerRad+3.5,r2=InnerRad+1.5,h=Height/2,center=true);
			}

				//inner portion of ring
			union(){
				translate([0,0,Height/4+0.5])
				cylinder(r1=InnerRad,r2=InnerRad+2,h=Height/2,center=true);

				cylinder(r=InnerRad+1,h=Height/2+1,center=true);

				translate([0,0,-Height/4-0.5])
				cylinder(r1=InnerRad+2,r2=InnerRad,h=Height/2,center=true);
			}

				//taking the sharp edge off of the outside
			difference(){
				cylinder(r=InnerRad+6.5,h=Height+2,center=true);
				cylinder(r=InnerRad+3,h=Height+4,center=true);
			}

		}

		//outer cylinders for cable guides
		rotate([0,0,25])
		translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		rotate([0,0,-25])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		//translate([0,-InnerRad-3.75,1.5])scale([1.35,1,1])cylinder(r=2,h=3,center=true,$fn=20);

		}

		//holes in cable guides
		rotate([0,0,25])
		translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		rotate([0,0,-25])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		//translate([0,-InnerRad-3.75,1.5])scale([1.35,1,1])cylinder(r=1.25,h=3.5,center=true,$fn=20);
	}

}

//-----------------------------------------//

module distalring(InnerRad,Height){

	difference(){

		union(){

		translate([0,0,Height/2])
		difference(){

				//outer portion of ring
			union(){

				translate([0,0,Height/4])
				cylinder(r1=InnerRad+1.5,r2=InnerRad+3.5,h=Height/2,center=true);

				cylinder(r=InnerRad+2.5,h=Height/2,center=true);

				translate([0,0,-Height/4])
				cylinder(r1=InnerRad+3.5,r2=InnerRad+1.5,h=Height/2,center=true);
			}

				//inner portion of ring
			union(){

				translate([0,0,Height/4+0.5])
				cylinder(r1=InnerRad,r2=InnerRad+2,h=Height/2,center=true);

				cylinder(r=InnerRad+1,h=Height/2+1,center=true);

				translate([0,0,-Height/4-0.5])
				cylinder(r1=InnerRad+2,r2=InnerRad,h=Height/2,center=true);
			}

				//taking the sharp edge off of the outside
			difference(){
				cylinder(r=InnerRad+6.5,h=Height+2,center=true);
				cylinder(r=InnerRad+3,h=Height+4,center=true);
			}

		}

		//back of finger extension
		difference(){

				translate([0,0,Height*2])
				cylinder(r=InnerRad+3,h=Height*2,center=true);

				translate([0,0,Height*2])
				cylinder(r=InnerRad+1.7,h=Height*2+2,center=true);

				translate([0,InnerRad,0])cube([InnerRad*4,InnerRad*3.5,Height*10],center=true);

				difference(){
					translate([0,0,Height-4])scale([1,1,2])rotate([90,0,0])
					cylinder(r=InnerRad+10,h=Height*10,center=true);

					translate([0,0,Height-4])scale([1,1,2])rotate([90,0,0])
					cylinder(r=Height*1.25,h=Height*10+2,center=true);
				}

				translate([0,0,Height-7+(Height*1.6)*1.5])rotate([90,0,0])cylinder(r=1.5,h=Height*10,center=true,$fn=10);

		}

			//cable guides
		//rotate([0,0,25])
		//translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		rotate([0,0,90])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		}

			//holes in cable guides
		//rotate([0,0,25])
		//translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		rotate([0,0,90])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

	}

}

//----------------------------------------//

//calling the ring functions to make separate finger rings

//thumb
if (Thumb==1){
	//Thumb Distal ring
	translate([0,-70,0])
	distalring(tDIPd/2,tDRL);
}

//index finger
if (Index==1){
	//Index Proximal ring
	translate([-(iPIPd+iDIPd)/2,-35,0])
	ring(iPIPd/2,iPRL);

	//Index Distal ring
	translate([(iPIPd+iDIPd)/2,-35,0])
	distalring(iDIPd/2,iDRL);
}

//middle finger
if (Middle==1){
	//Middle Proximal ring
	translate([-(mPIPd+mDIPd)/2,0,0])
	ring(mPIPd/2,mPRL);

	//Middle Distal ring
	translate([(mPIPd+mDIPd)/2,0,0])
	distalring(mDIPd/2,mDRL);
}

//Ring finger
if (Ring==1){
	//Ring Proximal ring
	translate([-(rPIPd+rDIPd)/2,35,0])
	ring(rPIPd/2,rPRL);

	//Ring Distal ring
	translate([(rPIPd+rDIPd)/2,35,0])
	distalring(rDIPd/2,rDRL);
}

//Pinky finger
if (Pinky==1){
	//Pinky Proximal ring
	translate([-(pPIPd+pDIPd)/2,70,0])
	ring(pPIPd/2,pPRL);

	//Pinky Distal ring
	translate([(pPIPd+pDIPd)/2,70,0])
	distalring(pDIPd/2,pDRL);
}

```


[User]
Hey, I'm looking to create some finger exerciser rings in OpenSCAD and I'm hoping you can help me design the files. I've got a specific idea of how I want them to look and I think I can explain it clearly.

Basically, I need to make rings that fit around the finger joints - both the PIP (proximal interphalangeal) and DIP (distal interphalangeal) joints - and I need to be able to individually enable/disable each finger, so I need that to be parameterized. I'd like to handle thumb, index, middle, ring and pinky fingers.

For each finger, the rings will be a set of two; a proximal ring, and a distal ring, where each ring is parameterized by two dimensions: the diameter of the finger joint it's designed to fit over and its axial length. The thumb's distal ring is special, though, because it will have no proximal ring. For the ring shape itself, I'd like a slightly rounded profile, a bit like a torus but with a flat inner surface. I would also like each ring to have two small cylindrical cable guides on the outer perimeter, but those should be parameterized too, so I can decide their positions and diameters. They should just be through holes for a cable to run through.

To be more specific about the dimensions, I'm thinking that the thumb DIP diameter could be up to 40mm, and the distal ring length can vary between 8mm and 12mm. For the index, middle, and ring fingers, the PIP diameters could go up to 35mm and the DIP diameters up to 25mm. The proximal ring lengths for those fingers could vary between 6mm and 12mm, and the distal ring lengths between 6mm and 10mm. The pinky finger PIP diameter could be up to 35mm with a DIP diameter up to 25mm, while the proximal ring lengths can vary between 6mm and 10mm and the distal ring lengths can go up to 10mm. I'd like to start with a default configuration which includes all fingers, and some starting default sizes for everything.

The main thing is that I need the ability to enable/disable each finger, and to be able to adjust all of the relevant parameters including the diameters, lengths, and cable guide parameters. It'd be great if this could be done with a single SCAD file that defines everything as modules and calls them at the end. Let me know if you need more information.

[Assistant]
Exerciser_Rings_Test_1.scad:
```

/* [Thumb] */

//Include Thumb? 0=No, 1=Yes
	Thumb=1; //[0,1]

//diameter of DIP joint (40mm max)
	tDIPd= 24 ;

//Distal ring length
	tDRL= 12 ; //[8:Small_8mm,10:Medium_10mm,12:Large_12mm]

//------------------------------------------------------------

/* [Index Finger] */

//Include Index Finger? 0=No, 1=Yes
	Index=1; //[0,1]

//diameter of PIP joint (35mm max)
	iPIPd= 20 ;

//diameter of DIP joint (25mm max)
	iDIPd= 17 ;

//Proximal ring length
	iPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	iDRL=8; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Middle Finger] */

//Include Middle Finger? 0=No, 1=Yes
	Middle=1; //[0,1]

//diameter of PIP joint (35mm max)
	mPIPd= 21 ;

//diameter of DIP joint (25mm max)
	mDIPd= 17 ;

//Proximal ring length
	mPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	mDRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Ring Finger] */

//Include Ring Finger? 0=No, 1=Yes
	Ring=1; //[0,1]

//diameter of PIP joint (35mm max)
	rPIPd= 20 ;

//diameter of DIP joint (25mm max)
	rDIPd= 17 ;

//Proximal ring length
	rPRL= 10 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm,12:XLarge_12mm]

//Distal ring length
	rDRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Pinky Finger] */

//Include Pinky Finger? 0=No, 1=Yes
	Pinky=1; //[0,1]

//diameter of PIP joint (35mm max)
	pPIPd= 18 ;

//diameter of DIP joint (25mm max)
	pDIPd= 16 ;

//Proximal ring length
	pPRL= 8 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//Distal ring length
	pDRL= 6 ; //[6:Small_6mm,8:Medium_8mm,10:Large_10mm]

//------------------------------------------------------------

/* [Hidden] */

//--------------------------------------//

module ring(InnerRad,Height){

	difference(){

		union(){

		translate([0,0,Height/2])
		difference(){

				//outer portion of ring
			union(){
				translate([0,0,Height/4])
				cylinder(r1=InnerRad+1.5,r2=InnerRad+3.5,h=Height/2,center=true);

				cylinder(r=InnerRad+2.5,h=Height/2,center=true);

				translate([0,0,-Height/4])
				cylinder(r1=InnerRad+3.5,r2=InnerRad+1.5,h=Height/2,center=true);
			}

				//inner portion of ring
			union(){
				translate([0,0,Height/4+0.5])
				cylinder(r1=InnerRad,r2=InnerRad+2,h=Height/2,center=true);

				cylinder(r=InnerRad+1,h=Height/2+1,center=true);

				translate([0,0,-Height/4-0.5])
				cylinder(r1=InnerRad+2,r2=InnerRad,h=Height/2,center=true);
			}

				//taking the sharp edge off of the outside
			difference(){
				cylinder(r=InnerRad+6.5,h=Height+2,center=true);
				cylinder(r=InnerRad+3,h=Height+4,center=true);
			}

		}

		//outer cylinders for cable guides
		rotate([0,0,25])
		translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		rotate([0,0,-25])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		//translate([0,-InnerRad-3.75,1.5])scale([1.35,1,1])cylinder(r=2,h=3,center=true,$fn=20);

		}

		//holes in cable guides
		rotate([0,0,25])
		translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		rotate([0,0,-25])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		//translate([0,-InnerRad-3.75,1.5])scale([1.35,1,1])cylinder(r=1.25,h=3.5,center=true,$fn=20);
	}

}

//-----------------------------------------//

module distalring(InnerRad,Height){

	difference(){

		union(){

		translate([0,0,Height/2])
		difference(){

				//outer portion of ring
			union(){

				translate([0,0,Height/4])
				cylinder(r1=InnerRad+1.5,r2=InnerRad+3.5,h=Height/2,center=true);

				cylinder(r=InnerRad+2.5,h=Height/2,center=true);

				translate([0,0,-Height/4])
				cylinder(r1=InnerRad+3.5,r2=InnerRad+1.5,h=Height/2,center=true);
			}

				//inner portion of ring
			union(){

				translate([0,0,Height/4+0.5])
				cylinder(r1=InnerRad,r2=InnerRad+2,h=Height/2,center=true);

				cylinder(r=InnerRad+1,h=Height/2+1,center=true);

				translate([0,0,-Height/4-0.5])
				cylinder(r1=InnerRad+2,r2=InnerRad,h=Height/2,center=true);
			}

				//taking the sharp edge off of the outside
			difference(){
				cylinder(r=InnerRad+6.5,h=Height+2,center=true);
				cylinder(r=InnerRad+3,h=Height+4,center=true);
			}

		}

		//back of finger extension
	//	difference(){
//
//				translate([0,0,Height*2])
//				cylinder(r=InnerRad+3,h=Height*2,center=true);
//
//				translate([0,0,Height*2])
//				cylinder(r=InnerRad+1.7,h=Height*2+2,center=true);
//
//				translate([0,InnerRad,0])cube([InnerRad*4,InnerRad*3.5,Height*10],center=true);
//
//				difference(){
//					translate([0,0,Height-4])scale([1,1,2])rotate([90,0,0])
//					cylinder(r=InnerRad+10,h=Height*10,center=true);
//
//					translate([0,0,Height-4])scale([1,1,2])rotate([90,0,0])
//					cylinder(r=Height*1.25,h=Height*10+2,center=true);
//				}
//
//				translate([0,0,Height-7+(Height*1.6)*1.5])rotate([90,0,0])cylinder(r=1.5,h=Height*10,center=true,$fn=10);
//
//		}

			//cable guides
		//rotate([0,0,25])
		//translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		rotate([0,0,90])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=1.5,h=2,center=true,$fn=20);

		}

			//holes in cable guides
		//rotate([0,0,25])
		//translate([InnerRad+3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

		rotate([0,0,90])
		translate([-InnerRad-3.35,0,1])scale([1,1.35,1])cylinder(r=0.75,h=2.5,center=true,$fn=20);

	}

}

//----------------------------------------//

//calling the ring functions to make separate finger rings

//thumb
if (Thumb==1){
	//Thumb Distal ring
	translate([0,-70,0])
	distalring(tDIPd/2,tDRL);
}

//index finger
if (Index==1){
	//Index Proximal ring
	translate([-(iPIPd+iDIPd)/2,-35,0])
	ring(iPIPd/2,iPRL);

	//Index Distal ring
	translate([(iPIPd+iDIPd)/2,-35,0])
	distalring(iDIPd/2,iDRL);
}

//middle finger
if (Middle==1){
	//Middle Proximal ring
	translate([-(mPIPd+mDIPd)/2,0,0])
	ring(mPIPd/2,mPRL);

	//Middle Distal ring
	translate([(mPIPd+mDIPd)/2,0,0])
	distalring(mDIPd/2,mDRL);
}

//Ring finger
if (Ring==1){
	//Ring Proximal ring
	translate([-(rPIPd+rDIPd)/2,35,0])
	ring(rPIPd/2,rPRL);

	//Ring Distal ring
	translate([(rPIPd+rDIPd)/2,35,0])
	distalring(rDIPd/2,rDRL);
}

//Pinky finger
if (Pinky==1){
	//Pinky Proximal ring
	translate([-(pPIPd+pDIPd)/2,70,0])
	ring(pPIPd/2,pPRL);

	//Pinky Distal ring
	translate([(pPIPd+pDIPd)/2,70,0])
	distalring(pDIPd/2,pDRL);
}

```


[User]
Okay, I'd like to create a custom nametag using OpenSCAD, and I'm looking for a design that has a wavy border. I've seen some examples that look pretty cool, and I want to be able to customize the text, font, size, and overall dimensions, as well as the number of waves along the edges. I'd also like to control the border thickness, how far the text is inset, and the base thickness.

Specifically, I'd like the following parameters to be adjustable:

*   `myword`: The text for the nametag.
*   `myfont`: The font to use for the text, and I'd like to have a list of common fonts that are available in OpenSCAD, such as "Arial", "Impact", "Courier New", "Times New Roman", "Black Ops One", and so on.
*   `fontsize`: The size of the letters, for example, 8.
*   `textheight`: The height of the text extrusion, for example, 7.
*  `myspacing`: The spacing between characters, for example, 1.1.
*   `length`: The overall length of the nametag, left to right, for example, 38.
*   `width`: The overall width of the nametag, top to bottom, for example, 16.
*   `height`: The height to the top of the tallest wave, for example, 8.
*   `frequency`: The number of waves in the border, for example, 1.
*   `steps`: The smoothness of the waves (lower is stair-steppy, higher is smoother), for example, 8.
*   `border`: The thickness of the wavy border, for example, 2.
*   `inset`: The distance from the border to the text, for example, 2.
*   `base`: The thickness of the base of the nametag, for example, 2.

I want the design to use a `linear_extrude` to create the 3D text from the 2D text and a `for` loop to generate the wavy border from a series of rectangular boxes, as shown in the provided examples, then `difference` to cut out the inside. I would also like to see the full rectangles for each step in the border generation for debugging. The trigonometric function that defines the waves can be included as is, I do not need to alter it, and am not a trigonometry master. I also don't need to use any external libraries for this project. Please provide the full code, with explanatory comments, if possible.

[Assistant]
MakerBot_CodeNametag_Project_CZ.scad:
```
// MakerBot Handbook Tutorial
// OpenSCAD nametag with parameters
// Modified for Customizer

/////////////////////////////////////////////////////////////////////
// THE PARAMETERS

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

/* [Text] */

myword = "Mike";
myfont="Black Ops One"; //[Alfa Slab One,Anton,Architects Daughter,Bangers,Black Ops One,Bubblegum Sans,Cherry Cream Soda,Courgette,Damion,Droid Serif,Electrolize,Exo,Fjalla One,Fredoka One,Great Vibes,Josefin Slab,Julius Sans One,Lobster,Luckiest Guy,Marck Script,Montserrat,Nunito,Orbitron,Oswald, Oxygen,Pacifico,Patua One,Passion One,Paytone One,Permanent Marker,Poiret One,Press Start 2P,Quicksand,Righteous,Rock Salt,Rokkitt,Russo One,Satisfy,Shadows Into Light,Sigmar One,Signika,Syncopate,Walter Turncoat]

// size of the letters
fontsize = 8;

// amount the word is extruded
textheight = 7;

// space between characters
myspacing = 1.1;

/* [Dimensions] */

// left to right
length = 38;

// top to bottom
width = 16;

// to the top of the tallest wave
height = 8;

/* [Wave] */

// number of waves
frequency = 1;

// low is stair-steppy, high is smoother
steps = 8;

// width of the wave border
border = 2;

// distance from border to text
inset = 2;

// thickness of base
base = 2;

/////////////////////////////////////////////////////////////////////
// PRINT THE TEXT

// STEP 3. Translate up and to the right past the border.

translate([ border + inset, border + inset, 0 ]){

    // STEP 2. Pull up the text in the z-direction.

    linear_extrude( height = textheight ){

        // STEP 1. Write the word in the correct font and size.

        text(
            text = myword,
            font = myfont,
            size = fontsize,
            spacing = myspacing
        );

    // This closes the parenthesis for "linear_extrude".
    }

// This closes the parenthesis for "translate".
}

/////////////////////////////////////////////////////////////////////
// THIS TRIGONOMETRIC FUNCTION CONTROLS THE WAVE
// (don't mess with this unless you are a trigonometry master :)

// The first part ensures that the lowest part is above the base.
// The middle part scales the function to a max height of "height".
// The last line is a shifted trig function with variable frequency.
// The "steps-1" allows one extra step contained in the "width".

function f(x) =
    2*base +
    0.5*(height - 2*base)*
    ( cos(frequency*x*360/(steps-1)) + 1 );

/////////////////////////////////////////////////////////////////////
// MAKE A WAVY SHAPE AND CUT OUT THE INSIDE

// The "difference" command subtracts the second thing from the first.
// We're going to construct a wavy shape and subtract an interior box.

difference(){

    // STEP 1: Make a wavy shape out of a series of retangular boxes.

    // Make a rectangular box for each number i = 0, 1, ..., steps-1.
    // To get a better idea of what each step is doing,
    // try replacing "steps-1" with something small like "4" or "8".
    // Then make sure it says "[0:steps-1]" again when you're done!

    for( i = [0:steps-1] ){

        // Move box "i" to the right by "i*(length/steps)" units,
        // so that box "i" begins right where box "i-1" ends.
        // Note that the width of each box is "length/steps".

        translate([ i*(length/steps), 0, 0 ])

            // This is box "i", a thin rectangular solid.
            // The box height is determined by the function "f".
            // Put a "#" before "cube" to see the full rectangles,
            // and remove it when you're done.

            cube([ length/steps, width, f(i) ]);

    // This closes the parentheses of the "for" loop.
    }

    // STEP 2: Remove a box on the inside to make room for the text.

    // Translate the box past the left and lower borders, and
    // translate it up to just a tiny bit below the top of the base.

    translate([ border, border, base-.1 ])

        // This is the cube that is to be removed.
        // The length and width take into account the border size.
        // Put a "#" before "cube" to see the box,
        // and remove it when you're done.

        cube([
            length - 2*border,
            width - 2*border,
            height
        ]);

 // This closes the parentheses for "difference".
 }

```
MakerBot_CodeNametag_Project.scad:
```
// MakerBot Handbook Tutorial
// OpenSCAD nametag with parameters

// Start by modifying the parameters at the beginning of this document.

// The code is very simple and we've included lots of comments.
// Even if you've never read or written code before, you can do this!

// For more advanced exploration, you can experiment with the
// trigonometric function and the rest of the code below the parameters.

/////////////////////////////////////////////////////////////////////
// THE PARAMETERS

// TEXT AND FONT
// Use menu Help / Font List to find the available font names
// You can drag and drop names right from the OpenSCAD Font List
// fontsize controls the letter heights

myword = "Caroline";
myfont="Phosphate:style=Inline";
fontsize = 8;

// TOTAL DIMENSIONS
// Adjust these dimensions to fit the size of your word.
// The "length" is left to right, the "width" is top to bottom.
// The "height" will be the height of the top of the tallest wave.

length = 56;
width = 15;
height = 8;

// BORDER CURVE STYLE
// Now you can style the border of your nametag!
// The "frequency" controls the number of waves.
// A low number of steps is good for a cool chunky look.
// A large number of steps is smoother, but takes longer to compile.
// You probably won't want to change border, inset, or base.

frequency = 1;
steps = 8;
border = 2;
inset = 2;
base = 2;

/////////////////////////////////////////////////////////////////////
// PRINT THE TEXT

// STEP 3. Translate up and to the right past the border.

translate([ border + inset, border + inset, 0 ]){

    // STEP 2. Pull up the text in the z-direction.

    linear_extrude( height = 6 ){

        // STEP 1. Write the word in the correct font and size.

        text(
            text = myword,
            font = myfont,
            size = fontsize,
            spacing = 1
        );

    // This closes the parenthesis for "linear_extrude".
    }

// This closes the parenthesis for "translate".
}

/////////////////////////////////////////////////////////////////////
// THIS TRIGONOMETRIC FUNCTION CONTROLS THE WAVE
// (don't mess with this unless you are a trigonometry master :)

// The first part ensures that the lowest part is above the base.
// The middle part scales the function to a max height of "height".
// The last line is a shifted trig function with variable frequency.
// The "steps-1" allows one extra step contained in the "width".

function f(x) =
    2*base +
    0.5*(height - 2*base)*
    ( cos(frequency*x*360/(steps-1)) + 1 );

/////////////////////////////////////////////////////////////////////
// MAKE A WAVY SHAPE AND CUT OUT THE INSIDE

// The "difference" command subtracts the second thing from the first.
// We're going to construct a wavy shape and subtract an interior box.

difference(){

    // STEP 1: Make a wavy shape out of a series of retangular boxes.

    // Make a rectangular box for each number i = 0, 1, ..., steps-1.
    // To get a better idea of what each step is doing,
    // try replacing "steps-1" with something small like "4" or "8".
    // Then make sure it says "[0:steps-1]" again when you're done!

    for( i = [0:steps-1] ){

        // Move box "i" to the right by "i*(length/steps)" units,
        // so that box "i" begins right where box "i-1" ends.
        // Note that the width of each box is "length/steps".

        translate([ i*(length/steps), 0, 0 ])

            // This is box "i", a thin rectangular solid.
            // The box height is determined by the function "f".
            // Put a "#" before "cube" to see the full rectangles,
            // and remove it when you're done.

            cube([ length/steps, width, f(i) ]);

    // This closes the parentheses of the "for" loop.
    }

    // STEP 2: Remove a box on the inside to make room for the text.

    // Translate the box past the left and lower borders, and
    // translate it up to just a tiny bit below the top of the base.

    translate([ border, border, base-.1 ])

        // This is the cube that is to be removed.
        // The length and width take into account the border size.
        // Put a "#" before "cube" to see the box,
        // and remove it when you're done.

        cube([
            length - 2*border,
            width - 2*border,
            height
        ]);

 // This closes the parentheses for "difference".
 }

```


[User]
Hey, I'm looking to get a custom landing gear extension designed for my quadcopter. I found a design online that's close, but it's too long for my needs. I'm hoping you can help me create a parametric OpenSCAD file for it.

The basic idea is a sort of "foot" that attaches to the drone's existing landing gear and raises it up.  Here's what I'm envisioning:

**Overall Shape:** The main part is a flat piece that clamps onto the existing landing gear with a sort of pin/clamp mechanism. This flat part should have a circular base for stability and a rectangular extension going out to the clamp.

**Dimensions (these should be parametric):**

*   **`additional_height`**: The height we're adding to the landing gear, in millimeters.
*   **`Thickness`**: The thickness of the main flat part, in millimeters.
*   **`Wall_Thickness`**: The thickness of the walls of the clamp and other structural elements, in millimeters.
*   **`gap`**: A small gap between the clamp pieces, in millimeters.
*   **`shift`**: A vertical shift value used in the clamp design, in millimeters (can be negative for an offset).
*   **`inner_r`**: The radius of the inner pin that fits into the drone's landing gear, in millimeters.
*   **`outer_r`**: The radius of the circular part that grips the landing gear, in millimeters.
*   **`clamp_x`**:  The depth (length along the horizontal axis) of the pin clamp, in millimeters.
*  **`clamp_y`**: The height (length along the vertical axis) of the pin clamp, in millimeters.
*   **`Pool_Noodle_Diameter`**: Diameter of an optional pool noodle feature that I may or may not want. Can ignore this if it complicates the design. It is an integer, meaning its radius is `Pool_Noodle_Diameter/2`

**Features:**

*   **Clamp Mechanism:** The clamp should have two parts, one that is a solid "pin" and another that wraps around it.  There's a circular cut-out on one side of this clamp that should have a diameter of `outer_r*2`. The pin portion should be a cylinder that has a diameter of `inner_r*2`
*   **Optional Pool Noodle:** There's a part for attaching a pool noodle that I might like to turn on with a boolean parameter called `noodle`. It should be a cylinder that sits next to the main structure, but is not actually attached to the main structure (though it can be attached to the main structure if it does not complicate things too much).

**Parameters:**
I'd like to make these parameters adjustable in the file: `additional_height`, `Thickness`, `Wall_Thickness`, `gap`, `shift`, `inner_r`, `outer_r`, `clamp_x`, `clamp_y`, `Pool_Noodle_Diameter` and `noodle`. The `noodle` parameter is a boolean (`true` or `false`) while all others should be numerical.

I think that's about it. Can you generate the OpenSCAD code for this? I don't need any special libraries, everything should work with the basic OpenSCAD library.

[Assistant]
Landing_extension.scad:
```
/*
Made by Jan Hünnemeyer
https://www.thingiverse.com/Horstage/about
Thanks to
tutch: https://www.thingiverse.com/thing:506479
popeye: https://www.thingiverse.com/thing:809432

*/
// preview[view:south east, tilt:top]
/* [Global] */
/* [Simple] */
//How much higher shall your drone be in mm
additional_height=20;
//Width of the stand in mm:
Thickness=10; //[5:35]

//in mm:
Wall_Thickness=2; //[1:0.1:7]

/* [Expert] */
//in mm:
gap=1; //[0.1:0.1:3]
//Lower to Higher in mm:
shift=0.5; //[-2:0.1:2]
// Radius of the inner pin
inner_r=2;
// Radius of the part to grab
outer_r=4.5;

/* [Hidden] */
// Depth of the pin
clamp_x=8.5;
// Height of the part to grab
clamp_y=9;
Pool_Noodle_Diameter=65;
eps=0.01;
fn=200;
noodle_r=Pool_Noodle_Diameter/2;
noodle=false;
wall=Wall_Thickness;
total_x=clamp_x+2*wall+gap;
add_h=additional_height+(outer_r-inner_r+shift);

linear_extrude(height = Thickness)
difference()
{
union()
{
    if (noodle)
    {
    translate([total_x/2+noodle_r+wall,0,0])
        circle(r=noodle_r+wall,$fn=fn);
    }
translate([0,total_x/2,0])
difference()
{
    union()
    {
        translate([total_x/2,0,0])
            circle(r=total_x/2,$fn=fn);
        square([total_x,add_h-total_x/2],center=false);
    }
    translate([wall+gap+clamp_x/2,add_h+inner_r-shift-total_x/2,0])
        circle(r=outer_r,$fn=fn);

    translate([total_x/2,0,0])
        circle(r=(clamp_x+gap)/2,$fn=fn);
    translate([wall,0,0])
        square([clamp_x+gap,add_h-total_x/2+eps],center=false);

}
translate([wall/2,add_h,0])
{
    scale([wall/2,2*inner_r,1])
            circle(r=1,$fn=fn);
        square([clamp_x-inner_r,2*inner_r]);
}

//translate([total_x-clamp_x,add_h+inner_r-outer_r-shift-2*wall,0])
translate([total_x-clamp_x,add_h+inner_r-clamp_y/2-2*wall-shift+eps,0])
{
    difference()
    {
        square([clamp_x-wall,wall]);

        scale([clamp_x-wall,wall,1])
            circle($fn=fn);
    }
}
translate([wall+gap,add_h+inner_r,0])
{
    difference()
    {
        *offset(wall,$fn=fn)
            translate([wall,-clamp_y/2-shift,0])
                square([clamp_x-wall,clamp_y]);
        *translate([0,-clamp_y/2-shift-wall,0])
            square([clamp_x+wall,clamp_y+2*wall]);
        offset(wall/2,$fn=fn)
            translate([wall/2,-clamp_y/2-shift-wall/2,0])
                square([clamp_x,clamp_y+wall]);

    translate([clamp_x/2,0,0])
    difference()
    {
        translate([0,-shift,0])
        circle(r=outer_r,$fn=fn);
        circle(r=inner_r,$fn=fn);
        translate([-outer_r+eps,-inner_r,0])
            square([outer_r+eps,2*inner_r+eps],center=false);
        *translate([-gap-outer_r,-outer_r-shift,0])
            square([outer_r,outer_r]);
    }
    translate([-eps,-outer_r-shift,0])
            square([clamp_x+eps-2*inner_r,outer_r-inner_r+shift]);
    translate([-eps,inner_r,0])
            square([clamp_x+eps-2*inner_r,outer_r-inner_r-shift]);
}

}
}
if (noodle){
    translate([total_x/2+noodle_r+wall,0,0])
    circle(r=noodle_r,$fn=fn);
}
}
```


[User]
Hey, I'm looking to create a Stegosaurus-shaped napkin holder. I've got some specific ideas for the design and I'd love your help generating the necessary OpenSCAD code.

First, the main body of the Stego needs to be a sort of stylized, 2D profile extrusion, kind of like the current design but I want it to be fully parametric so I can tweak it. I'm thinking we can define points for the outline and then the `polygon` function with `linear_extrude` to get a 3D shape. I'd like to be able to easily modify the number of points, and their positions. We'll need to define separate parameters for the height of the extrusion (which is the length of the napkin holder) and the thickness of the overall Stego.

Next, the holder needs a cavity for the napkins, which will be made using a `difference` operation and a `cube`. I'd like to be able to set parameters for: the napkin thickness, how many napkins I want to hold, and the thickness of the walls for the holder.  The cavity should be large enough to accommodate the napkins with a bit of wiggle room, and the location and dimensions of the cutout needs to also be adjustable via parameters.

Finally, I want to add some feet. They should be attached to the bottom of the Stego and be able to hold the holder upright and be a stylized 'stego-foot', not just a block.  I'm thinking of a base with three stylized 'toes' coming out of it. They should be fairly large and stable. The feet can be attached by translating and rotating them around the bottom of the Stego. Each toe is just a circle with a notch cut out.

Can we generate this as a parametric design with all the dimensions exposed in the customizer so that I can easily adjust them?

[Assistant]
NapkinHolder_v3.scad:
```
/*[Dimensions]*/
//How thick are the folded napkins in mm?
napkin_thickness = .5;
//How many napkins do you want it to hold?
napkin_count = 40;
//How thick do you want the walls of the holder?
stego_thickness = 4; //[1:1:10]

/*[Hidden]*/
stego_length = 250; //in mm
stego_size = stego_length * .01; //100
stego_depth = napkin_thickness * napkin_count + (stego_thickness * 2);
cutout_x = stego_length * 1.1;
cutout_y = stego_length * .5;
cutout_depth = napkin_thickness * napkin_count;
e = .001; //epsilon

rotate([90,0,0]){
    difference(){
        translate([-15,0,0]){
            scale([stego_size,stego_size,.1 * stego_depth]){
                Stego_Full();
            }

            translate([-(stego_size * 10),0,stego_depth/1.4]){
                Foot();
            }
            translate([(stego_size * 20),0,stego_depth/1.4]){
                Foot();
            }
            rotate([0,180,0]){
                translate([(stego_size * 10),0,stego_depth/1.4]){
                    Foot();
                }
                translate([-(stego_size * 20),0,stego_depth/1.4]){
                    Foot();
                }
            }
        }
        translate([0,cutout_y/2 + stego_thickness,0]){
            cube([cutout_x,cutout_y,cutout_depth], center = true);
        }
    }
}
module Foot(){
    difference(){
        minkowski(){
            union(){
                linear_extrude(height = stego_depth/2, center = true){
                    circle(r = stego_length / 20);
                }
                translate([0,0,stego_depth/4 - stego_depth/32]){
                    linear_extrude(height = stego_depth/16, center = true){
                        rotate([0,0,-15]){
                            for(i = [-2:1]){
                                rotate([0,0,-35 * i]){
                                    translate([0,8,0]){
                                        Toe();
                                    }
                                }
                            }
                        }
                    }
                }
            }
            sphere(r = 1, $fn = 20);
        }
        translate([0,-stego_length / 20,0]){
            cube([stego_length / 5,stego_length / 10,50], center = true);
        }
    }
}
module Toe(){
    scale([1,3,1]){
        difference(){
            circle(r = stego_length / 80, $fn = 30);
            translate([(stego_length / 160),0,0]){
                square([stego_length / 80, stego_length / 40 + e],center = true);
            }
        }
    }
    rotate([0,0,180]){
        scale([1,3,1]){
            difference(){
                circle(r = stego_length / 80, $fn = 30);
                translate([(stego_length / 160),0,0]){
                    square([stego_length / 80, stego_length / 40 + e],center = true);
                }
            }
        }
    }
}
module Stego_Full(){
    linear_extrude(height = 10, center = true){
        difference(){
            Stego();
            Eye();
        }
    }
}
function stego_paths() = [[
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75]];
function stego_points() = [
[-15.904016,20.082256],[-16.257898,25.386497],[-11.368431,22.812611],[-11.537617,19.542389],[-5.707762,23.981148],[-8.682608,25.616261],[-8.940619,31.814175],[-4.139975,28.507309],[-3.969378,25.208897],[-0.943773,26.407036],[2.252424,27.087864],[-0.196537,30.483532],[3.015169,36.127487],[5.655878,30.327072],[3.532595,27.080811],[9.038179,25.978523],[8.371305,29.506695],[13.061979,32.909416],[13.328447,27.124512],[10.273233,25.430199],[13.054930,23.928997],[15.608225,22.124741],[15.940954,25.793865],[20.624578,28.204247],[19.957705,22.737904],[17.094236,21.229656],[21.518442,17.271561],[21.859632,20.792686],[27.076193,22.753410],[26.092096,17.708527],[22.481390,16.413124],[25.358957,14.112695],[27.919298,12.715802],[28.206919,15.059932],[31.610369,17.397011],[31.662531,13.551684],[29.819818,12.057528],[32.521149,10.939734],[36.804367,10.126409],[41.465431,9.962898],[46.925903,10.156011],[53.725754,11.213193],[59.585220,11.805215],[60.081497,11.583913],[60.221069,11.331599],[59.815033,10.607075],[58.660339,9.556940],[55.552963,7.632866],[52.814972,6.161266],[48.058029,4.097644],[43.973610,2.626045],[39.556450,1.375751],[34.393471,0.346758],[29.946711,0.000001],[-29.946711,0.000001],[-33.323730,0.143691],[-36.377632,0.731919],[-36.878860,1.057117],[-36.979881,1.245760],[-36.803200,1.453804],[-32.719688,3.297509],[-31.871740,4.648104],[-31.905828,5.290912],[-35.909782,6.231626],[-37.894211,7.050027],[-38.323883,7.750253],[-37.754028,8.433627],[-36.793655,9.077990],[-34.737473,9.873418],[-32.563667,10.962202],[-30.325087,12.311995],[-27.333883,12.356308],[-22.241854,10.695634],[-17.964769,13.605313],[-14.150127,16.613285],[-12.337021,18.418957]];
module Stego() {
    polygon(points = stego_points(), paths = stego_paths());
};
function eye_paths() = [[
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]];
function eye_points() = [
[-28.548876,10.500199],[-28.981283,10.720432],[-29.460505,10.796324],[-29.939722,10.720432],[-30.372133,10.500199],[-30.715151,10.157166],[-30.935514,9.724931],[-31.011374,9.245788],[-30.935514,8.766644],[-30.715151,8.334410],[-30.372133,7.991375],[-29.939722,7.771143],[-29.460505,7.695251],[-28.981283,7.771143],[-28.548876,7.991375],[-28.205851,8.334410],[-27.985491,8.766644],[-27.909636,9.245788],[-27.985491,9.724931],[-28.205851,10.157166]];
module Eye() {
    polygon(points = eye_points(), paths = eye_paths());
};

```


[User]
I need a custom drone landing extension designed in OpenSCAD. I'm trying to use this pool noodle I have, and I need some legs that will clip onto it.

I'd like to be able to adjust a few things: how much higher the drone sits, the thickness of the legs themselves, and the diameter of the pool noodle so it fits mine correctly. It would be really helpful if I could also adjust how tight the clip is, so I can get a good fit to my noodle. I'm not super familiar with all of the OpenSCAD terms, but I found a file that has almost exactly what I need, so I'll describe the functionality I want based on that.

So, the design basically looks like a flat rectangle standing vertically. On one side, there should be a circular cutout for the pool noodle to sit in, and on the opposite side, I need a clamp. This clamp is formed from two main pieces, a flat rectangle with a circle cut out, and a second, slightly smaller rectangular section with a circular cutout, that when combined, forms the clamp itself. The clip is more of a semicircle, with a small section of the top that is just a flat surface. I also want some small connector bars that will give extra strength and ensure that the clip stays attached to the rectangle.

Here's a breakdown of the parameters I need:

*   **`additional_height`**: How much taller the extension makes the drone sit, in millimeters.
*   **`Thickness`**: The width/thickness of the flat rectangle, in millimeters.
*   **`Wall_Thickness`**: The thickness of the walls of the clamp, in millimeters. This affects how beefy it is.
*  **`Pool_Noodle_Diameter`**: The diameter of the pool noodle, in millimeters.
*   **`gap`**: A small airgap between the two main parts of the clamp, in millimeters.
*   **`shift`**: A small distance to adjust the height of the inner and outer circles of the clamp, which affect its tightness, in millimeters. A positive value would make the clamp tighter, a negative looser.
*   **`inner_r`**: The radius of the inner "pin" of the clamp, in millimeters.
*   **`outer_r`**: The radius of the outer part of the clamp to grab the pool noodle, in millimeters.

The clamp depth (named `clamp_x` in the example I have) should be a fixed value, maybe 8.5 mm. Also, I'd like the clamp height (`clamp_y`) to be 9mm. I think it would be fine to set the `fn` value to 200, and `eps` to 0.01 for tolerances, like in the example.

I'd like to avoid the additional cutouts on the legs from the example file I'm using, they are not necessary and would just complicate the model.

Could you create this for me in OpenSCAD, making sure all parameters are editable? I'd like a single file for this design if possible. Thanks!

[Assistant]
Landing_extension.scad:
```
/*
Made by Jan Hünnemeyer
https://www.thingiverse.com/Horstage/about
Thanks to
tutch: https://www.thingiverse.com/thing:506479
popeye: https://www.thingiverse.com/thing:809432

*/
// preview[view:south east, tilt:top]
/* [Global] */
/* [Simple] */
//How much higher shall your drone be in mm
additional_height=15; //[15:30]
//Width of the stand in mm:
Thickness=10; //[5:35]

//in mm:
Wall_Thickness=2; //[1:0.1:7]

Pool_Noodle_Diameter=65;

/* [Expert] */
//in mm:
gap=1; //[0.1:0.1:3]
//Lower to Higher in mm:
shift=0.5; //[-2:0.1:2]
// Radius of the inner pin
inner_r=2;
// Radius of the part to grab
outer_r=4.5;

/* [Hidden] */
// Depth of the pin
clamp_x=8.5;
// Height of the part to grab
clamp_y=9;

eps=0.01;
fn=200;
noodle_r=Pool_Noodle_Diameter/2;
noodle=true;
wall=Wall_Thickness;
total_x=clamp_x+2*wall+gap;
add_h=additional_height+(outer_r-inner_r+shift);

linear_extrude(height = Thickness)
difference()
{
union()
{
    if (noodle)
    {
    translate([total_x/2+noodle_r+wall,0,0])
        circle(r=noodle_r+wall,$fn=fn);
    }
translate([0,total_x/2,0])
difference()
{
    union()
    {
        translate([total_x/2,0,0])
            circle(r=total_x/2,$fn=fn);
        square([total_x,add_h-total_x/2],center=false);
    }
    translate([wall+gap+clamp_x/2,add_h+inner_r-shift-total_x/2,0])
        circle(r=outer_r,$fn=fn);

    translate([total_x/2,0,0])
        circle(r=(clamp_x+gap)/2,$fn=fn);
    translate([wall,0,0])
        square([clamp_x+gap,add_h-total_x/2+eps],center=false);

}
translate([wall/2,add_h,0])
{
    scale([wall/2,2*inner_r,1])
            circle(r=1,$fn=fn);
        square([clamp_x-inner_r,2*inner_r]);
}

//translate([total_x-clamp_x,add_h+inner_r-outer_r-shift-2*wall,0])
translate([total_x-clamp_x,add_h+inner_r-clamp_y/2-2*wall-shift+eps,0])
{
    difference()
    {
        square([clamp_x-wall,wall]);

        scale([clamp_x-wall,wall,1])
            circle($fn=fn);
    }
}
translate([wall+gap,add_h+inner_r,0])
{
    difference()
    {
        *offset(wall,$fn=fn)
            translate([wall,-clamp_y/2-shift,0])
                square([clamp_x-wall,clamp_y]);
        *translate([0,-clamp_y/2-shift-wall,0])
            square([clamp_x+wall,clamp_y+2*wall]);
        offset(wall/2,$fn=fn)
            translate([wall/2,-clamp_y/2-shift-wall/2,0])
                square([clamp_x,clamp_y+wall]);

    translate([clamp_x/2,0,0])
    difference()
    {
        translate([0,-shift,0])
        circle(r=outer_r,$fn=fn);
        circle(r=inner_r,$fn=fn);
        translate([-outer_r+eps,-inner_r,0])
            square([outer_r+eps,2*inner_r+eps],center=false);
        *translate([-gap-outer_r,-outer_r-shift,0])
            square([outer_r,outer_r]);
    }
    translate([-eps,-outer_r-shift,0])
            square([clamp_x+eps-2*inner_r,outer_r-inner_r+shift]);
    translate([-eps,inner_r,0])
            square([clamp_x+eps-2*inner_r,outer_r-inner_r-shift]);
}

}
}
if (noodle){
    translate([total_x/2+noodle_r+wall,0,0])
    circle(r=noodle_r,$fn=fn);
}
}
```


[User]
I'm looking to create a customizable grommet for passing wires or cables through panels. I'd like a parametric design with a few key features.

First, the grommet should have an overall cylindrical shape. It should have a top flange (the portion that sits on top of a panel), a central groove that fits into a panel hole, and a bottom section (that rests below the panel). I'd like to control the height of the top flange, the depth of the groove, and the overall width of both the top flange and the inner diameter of the groove.

The top and bottom portions of the grommet should not be straight cylinders. Instead, they should be angled inwards, tapering from their largest diameter at the top or bottom down to where they meet the central groove. I've been trying to achieve this with some cylinder manipulations, but I'd like a design that can be modified more easily. Also, I'd like to have a through hole in the center, so the wires can actually pass through. It should be smaller than the mid width and roughly 70% of the diameter.

Essentially, I need a parametric module that allows me to adjust these dimensions to fit different panel thicknesses and wire sizes. I would prefer that this all be one `.scad` file.

I don't have a preference on libraries but I'm open to using them to achieve this.

Here is some sample code that I was using in the past to try to make this work but it wasn't perfect.

```
//CUSTOMIZER VARIABLES

top_height=5; // [0:30]
groove_height=3; // [0:30]
top_width=40; // [0:100]
mid_width=32; // [0:100]

//CUSTOMIZER VARIABLES END

grommet_cap(top_height,mid_width,top_width,groove_height);

module top(h=5,r=10) {
  cylinder(h,r,r);
}

module bottom(h=5,r=10) {
  cylinder(h,r,.7*r);
}

module mid(h=3,r=7) {
  cylinder(h,r,r);
}

module solid(h=5,r1=10,r2=15,g=3) {
  union() {
    top(h,r2);
    translate([0,0,h]) mid(g,r1);
    translate([0,0,h+g]) bottom(h,r2);
  }
}

module grommet_cap(h,r1,r2,g) {
  difference() {
    solid(h,r1,r2,g);
    translate([0,0,-1]) cylinder(2*(h+g),.7*r1,.7*r1);
  }
}

```

and

```
//CUSTOMIZER VARIABLES

top_height=5; // [0:30]
groove_height=3; // [0:30]
top_width=40; // [0:100]
mid_width=32; // [0:100]

//CUSTOMIZER VARIABLES END

grommet_cap(top_height,mid_width,top_width,groove_height);

module top(h=5,r=10) {
  cylinder(h,.7*r,r);
}

module bottom(h=5,r=10) {
  cylinder(h,r,.7*r);
}

module mid(h=3,r=7) {
  cylinder(h,r,r);
}

module solid(h=5,r1=10,r2=15,g=3) {
  union() {
    top(h,r2);
    translate([0,0,h]) mid(g,r1);
    translate([0,0,h+g]) bottom(h,r2);
  }
}

module grommet_cap(h,r1,r2,g) {
  difference() {
    solid(h,r1,r2,g);
    translate([0,0,-1]) cylinder(2*(h+g),.7*r1,.7*r1);
  }
}

```

[Assistant]
grommet.scad:
```
//CUSTOMIZER VARIABLES

top_height=5; // [0:30]
groove_height=3; // [0:30]
top_width=40; // [0:100]
mid_width=32; // [0:100]

//CUSTOMIZER VARIABLES END

grommet_cap(top_height,mid_width,top_width,groove_height);

module top(h=5,r=10) {
  cylinder(h,r,r);
}

module bottom(h=5,r=10) {
  cylinder(h,r,.7*r);
}

module mid(h=3,r=7) {
  cylinder(h,r,r);
}

module solid(h=5,r1=10,r2=15,g=3) {
  union() {
    top(h,r2);
    translate([0,0,h]) mid(g,r1);
    translate([0,0,h+g]) bottom(h,r2);
  }
}

module grommet_cap(h,r1,r2,g) {
  difference() {
    solid(h,r1,r2,g);
    translate([0,0,-1]) cylinder(2*(h+g),.7*r1,.7*r1);
  }
}

```
grommet2.scad:
```
//CUSTOMIZER VARIABLES

top_height=5; // [0:30]
groove_height=3; // [0:30]
top_width=40; // [0:100]
mid_width=32; // [0:100]

//CUSTOMIZER VARIABLES END

grommet_cap(top_height,mid_width,top_width,groove_height);

module top(h=5,r=10) {
  cylinder(h,.7*r,r);
}

module bottom(h=5,r=10) {
  cylinder(h,r,.7*r);
}

module mid(h=3,r=7) {
  cylinder(h,r,r);
}

module solid(h=5,r1=10,r2=15,g=3) {
  union() {
    top(h,r2);
    translate([0,0,h]) mid(g,r1);
    translate([0,0,h+g]) bottom(h,r2);
  }
}

module grommet_cap(h,r1,r2,g) {
  difference() {
    solid(h,r1,r2,g);
    translate([0,0,-1]) cylinder(2*(h+g),.7*r1,.7*r1);
  }
}

```


[User]
I'd like to design a stand for a flat object, like a tablet or a phone, and I want it to be parametric so I can easily adjust it for different sized objects.

The stand should be V-shaped, and the object will rest on the angled arms of the "V". I need to be able to control the following:

**Object Parameters:**

*   **Object Width:** The width of the object.
*   **Object Length:** The length of the object.
*   **Object Depth:** The thickness of the object.
*   **Object L Offset:** How far the object is from the tip of the V stand (along the length of the arms).
*   **Object H Difference:** How far the object is below the top edge of the stand.
*   **Object Tilt:** The angle of the object relative to the horizontal (90 would be vertical).

**Stand Parameters:**

*   **Total Stand Length:** The total length of each arm of the V.
*   **Arm Width:** The width of each arm of the V.
*   **Maximum Stand Height:** The maximum height of the stand.
*   **Edge Smoothing:** A radius for the rounded edges using minkowski.
*   **Method:** A way to choose whether to use a fixed total width for the "V" or a fixed angle.
*   **Total Stand Width:** (Only if "width" method is selected) The distance between the tips of the arms.
*   **V Angle:** (Only if "angle" method is selected) The angle of the "V".
*   **Declining Angle:** An angle that will allow for a backward tilt to the whole structure.

The code should be in OpenSCAD and should use the `minkowski()` function and a sphere for the edge smoothing. It would be good if the main module that produces the whole structure is called `stand`. Also, there needs to be `taperedV` module that controls the shape of the V. A basic `v` module that draws 2D shape for the `taperedV` would also be useful.

I think that's all I need. Let me know if there is anything missing.

[Assistant]
VStand.scad:
```

/*[Object parameters]*/
//Width
ObjectWidth=280;
//Length
ObjectLenght=400;
//Depth
ObjectH=4.5;

//Displacement of object from the tip of the stand
ObjectLoffset=17;

//Displacement of object from the top of the stand
ObjectHdifference=12;

//Object Tilt (90 is vertical)
ObjectA=100;

ObjectS=[ObjectWidth,ObjectLenght,ObjectH];

/*[Stand Parameters]*/
//Total Length of the stand
VLenght=160;
//Arms width of the stand
VArmWidth=12;
//Maximum Stand Height
VHeight=25;
//Edge smoothing
Smooth=5;
//Select if you want to use angle value or total stand width value
method="width";// [width:Use total stand width,angle:Use V angle]
//Total stand width, only if selected
VWidth=50;
//V angle, only if selected
VAngle=35;

//Declining angle
angleBack=5;

if (method=="width")
        stand(ObjectS,
                ObjectA,
                ObjectHdifference,
                ObjectLoffset,
                fixedDelta(VWidth-VArmWidth,VArmWidth,VLenght),
                angleBack,
                VLenght,
                VArmWidth,
                VHeight,
                Smooth);
if (method=="angle")
       stand(ObjectS,
                ObjectA,
                ObjectHdifference,
                ObjectLoffset,
                VAngle,
                angleBack,
                VLenght,
                VArmWidth,
                VHeight,
                Smooth);

//function to determine the angle so that the V has a fixed size (between midpoints of arms). x= size to set, w = width of arms, l = length of V.
function fixedDelta(x,w,l) = atan((x+w/2)/l);
module stand(ObjectS,ObjectA,ObjectHdifference,ObjectLoffset,angleV,angleBack,length,armW,maxHeight,smooth){
    translate([0,smooth,smooth]){
    minkowski(){
    difference(){
        taperedV(angleV,angleBack,length-smooth*2,armW-smooth*2,maxHeight-smooth*2,smooth);
        translate([0,length-ObjectLoffset,maxHeight-ObjectHdifference-smooth])
        rotate([ObjectA,0,0])
            translate([0,ObjectS[1]/2,ObjectS[2]/2])
        cube([ObjectS[0]+2*smooth,ObjectS[1]+2*smooth,ObjectS[2]+2*smooth], center=true);
    }
    sphere(r=smooth);
    }
    %translate([0,length-ObjectLoffset,maxHeight-ObjectHdifference-smooth])
        rotate([ObjectA,0,0])
            translate([0,ObjectS[1]/2,ObjectS[2]/2])
        %cube(ObjectS, center=true);
}
}

module v(angle,length, armW){
    width=armW/sin(angle);
polygon([
			[0,0],
			[length*tan(angle),length],
			[length*tan(angle)-width,length],
			[0,width/tan(angle)],
			[-length*tan(angle)+width,length],
			[-length*tan(angle),length]
		]);
}

module taperedV(a1,a2, length, w, maxh){
    difference(){
        linear_extrude(height = maxh)
            v(a1,length,w);
        //translate[]
        cubeS=2*max(length,length*sin(a1)*2);
        translate([0,0,maxh-cubeS/2*sin(a2)])
        rotate([a2,0,0])
        translate([0,0,cubeS/2])
            cube(cubeS, center=true);
    }

}
```


[User]
I'm looking to create a modular device holder system, and I need a core piece that can be customized for different devices. I want this to be a parametric design, so I can easily adjust it for various phone and tablet sizes.

Specifically, I need a holder that's essentially a rectangular frame with a cutout for the device.  I should be able to specify:

*   `width`: The width of the device in millimeters (portrait orientation).
*   `height`: The height of the device in millimeters.
*   `thickness`: The thickness of the device in millimeters.

The frame itself should be slightly larger than the device dimensions to accommodate it. The base of the frame should be flat. I'd like some rounded corners or edges if that's possible, but it's not a requirement.  The most important thing is to have a design that can be adjusted based on these three main dimensions.

Additionally, I need a way to attach the holder to a mounting system. The design should include a central cylinder for rotation, and four smaller spheres placed around it and slightly below the top surface to act as rotational stop/detents. There should also be a circle of cutouts around the central cylinder that can be used to attach other things. Finally, I'd like an extruded logo or mark, a series of small squares and circles, perhaps the letters S, J, and L, all in a stylized arrangement and on the back.

So, in summary, a parametric device holder with:

1.  Adjustable width, height, and thickness.
2.  A central rotation cylinder.
3.  Four rotational stop spheres.
4. Circle of cutouts.
5. An extruded stylized logo.

I don't have a specific preference for libraries if you have recommendations I'm happy to hear them. I'd prefer to use standard features as much as possible but if it makes things easier feel free to use any standard or popular libraries.

[Assistant]
device_holder_main_param.scad:
```
/* [Global] */
// iphone 5 bare 59x124.2x7.8
// iphone5 w thin case 62x126.5x11
// iphone5 w otterbox 69x134.5x16.2
// iphone6 (default) 69.2x140x9.2
// ipad 2 bare 186.6x241.6x8.85
// ipad 2 full cover 254x200x14
// ipadpro 221x305x7.5
// width of the device in mm in portrait orientation (iphone6 bare = 67)
width = 200; // [50:.2:220]
// height of the device in mm (iphone 6 bare=138)
height = 254; // [100:.2:300]
// thickness of device in mm (iphone 6 bare=7)
thickness = 15; // [5:.1:15]

/* [Hidden] */
module MMark() {
//    difference() {
//     translate([-6,-33,0]) cube([12,18,1]);
     rotate([0,0,180]) translate([4.3,19,-.1])  linear_extrude(1,0,.9) scale([-1,1,1]) {
        translate([5.8,-2.9,0]) rotate([0,0,50]) text("S",10,font="Jim Nightshade");
        translate([.2,-2.5,0]) scale([1.2,.8,1]) text("J",4,font="Aldrich");
        translate([-.3,0,0]) scale([1.2,1,1]) text("L",6,font="Aldrich");
        translate([4.4,8.6,0]) circle(r=2,$fn=20);
        translate([4.4,8.6,0]) for (i = [235:50:460]) {
            rotate([0,0,i]) translate([-.5,2.5,0]) square([1,2]);
        }
        }
//    }
}

difference() {
union() {
difference() {
	translate([-(height+12)/2+1.5,-(width+12)/2+3,0]) {
	difference() {
		translate([-1.5,-3,0]) cube([height+12,width+12,thickness+4]);
		translate([4.5,3,4]) cube([height,width,thickness+4]);
	}
	}
	union() {
		translate([-106,106,thickness/2+3]) cube([200,200,thickness+7],center=true);
		translate([-106,-106,thickness/2+3]) cube([200,200,thickness+7],center=true);
		translate([height/4-14,-111,thickness/2+3]) cube([height/2-41,200,thickness+7],center=true);
		translate([height/4-14,111,thickness/2+3]) cube([height/2-41,200,thickness+7],center=true);
		translate([90,-130,thickness/2+3]) cube([140,200,thickness+7],center=true);
		translate([90,130,thickness/2+3]) cube([140,200,thickness+7],center=true);
		translate([height/2+25,0,thickness/2+3]) cube([80,40,thickness+7],center=true);
		translate([0,-width/2-3,2]) cylinder(h=thickness+4,r=1,$fn=180);
		translate([0,width/2+3,2]) cylinder(h=thickness+4,r=1,$fn=180);
		translate([height/2+3,-25,2]) cylinder(h=thickness+4,r=1,$fn=180);
		translate([height/2+3,25,2]) cylinder(h=thickness+4,r=1,$fn=180);
		translate([-height/2-3,0,2]) cylinder(h=thickness+4,r=1,$fn=180);
	}
}
translate([0,0,2.1]) cylinder(h=4.2,r=25,$fn=360,center=true);
}
union() {
	translate([0,0,4]) cylinder(h=4.2,r=21,$fn=360,center=true);
	translate([0,0,0]) cylinder(h=8,r=6.2,$fn=360,center=true);
    translate([0,-12,0]) sphere(r=1.7,$fn=24);
    translate([12,0,0]) sphere(r=1.7,$fn=24);
    translate([0,12,0]) sphere(r=1.7,$fn=24);
    translate([-12,0,0]) sphere(r=1.7,$fn=24);
    translate([0,0,-.2]) rotate_extrude($fn=72) translate([12,0,0]) circle(r=.9,$fn=30);
    translate([6,0,-.1])rotate([0,0,90]) scale([1.3,1.3,1]) MMark();
}
}

```


[User]
Hey, I'm looking to create some custom bases for tabletop miniatures, and I really like the look of the "Chaos Base" design I found, but I need something a little more flexible. Basically, I want a base with a faceted circular shape, and each facet should have an arrow on it.

Here's what I'm thinking for parameters:

*   **Base Shape:**
    *   I want to be able to set the number of sides or facets on the base, like the existing design does.
    *   I need to be able to specify the overall height of the base.
    *   The overall width of the base should be adjustable.
    *   I'd also like to control the diameter of the top face - maybe express this as a fraction of the base width.
*   **Arrow Design:**
    *   The existing design uses these "sets" of coordinates for defining the arrow shape. I'm not entirely sure how these work, but I'd like to have the ability to modify the shape of the arrow using parameters like this - maybe make it more intuitive.
    *   Also a way to control the height of the arrow extrusion.
*   **Slotting:**
    *   I'd like the option to add a slot to the base, either aligned with the edges or the faces.
    *   I need to specify the slot's thickness, width, and depth.

I also like the idea of color schemes for different "gods", but that's more fluff than function.

So, could you design a parametric OpenSCAD file that includes these features? It's important that I can adjust the base, arrow, and slot dimensions separately using these parameters, and generate the model with different settings.

I don't need to use any external libraries and I'd rather keep the calculations in the main file if at all possible.

[Assistant]
Chaos_Base_1.1.scad:
```
//Name: Chaos Base
//Created by Ari M. Diacou, June 2015
//Shared under Creative Commons License: Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
//see http://creativecommons.org/licenses/by-sa/3.0/

/* [Base Parameters] */
//The number of sides on the base
sides=8;
//The height of the base in mm
base_height=7;
//The widest width of the base
base_width=40;
//The top face has a diameter which is factor*base_width
factor=.7;
//Your God
god="Khorne";//[Khorne,Slannesh,Nurgle,Tzeench]

/* [Arrow Parameters] */
//The tip of the arrow [origin to edge, radius, polar position angle] e.g. [1,5,35]
set1=[1,5,35];
//The back of the arrow tip [origin to edge, radius, polar position angle] e.g. [0,10,75]
set2=[0,10,65];
//The sides of the shaft [origin to edge, radius, polar position angle] e.g. [.5,10,0]
set3=[.5,10,0];
//The back of the shaft [origin to edge, radius, polar position angle] e.g. [-1.5,10,60]
set4=[-3,10,50];
//Height of your arrow, use 0 offline to output a DXF file
height=1;

/* [Slot Parameters] */
//do you want a slotted base?
user_wants_a_slotted_base = "no";//[yes,no]
//Do you want your slot aligned with edges or faces?
slot_allignment="edge";//[edge,face]
//The thickness of the base, 2mm (for GW minis) + tolerance
slot_thickness=2.5;
//The width of the slot
slot_width=20;
//The depth of your slot
slot_depth=5;

/* [HIDDEN] */
//////// Derived Parameters ///////
ep=0+0.1; //epsilon, a small number
arrow_tip= intersection(set1,[set1[0],set1[1],180-set1[2]]); echo(str("arrow_tip=",arrow_tip));
arrow_back=intersection(set3,set4); echo(str("arrow_back = ",arrow_back));
arrow_side=intersection(set1,set2); echo(str("arrow_side = ",arrow_side));
arrow_length=arrow_tip[1]-arrow_back[1]; echo(str("arrow_length = ",arrow_length));
arrow_width=2*max(arrow_side[0],arrow_back[0]); echo(str("arrow_width = ", arrow_width));
inradius_factor=cos(180/sides); echo(str("inradius_factor=",inradius_factor)); //When openscad makes a cylinder with a low number of sides, the radius is measured to the corners not the sides. The inradius_factor factor is how much closer the sides are to the origin than the corners. Taken from http://mathworld.wolfram.com/Octagon.html solved for (r/R) (the inradius/circumradius).
yz_rotation=-atan(base_height/((1-factor)*(base_width/2))); echo(str("yz_rotation = ", yz_rotation)); //how steep are the sides of the base?
centering_translation=[ 0,-arrow_tip[1]+arrow_length/2,-0*height/2]; //Centers the arrow based on length
extra_angle=sides%2==0 ? 180/sides : 90; //Rotates the arrows to the faces
arrow_translation=[0,(1+factor)*base_width/4-ep,base_height/2-ep]; //Lines up the arrows on the faces

//These are the color schemes for the four gods of chaos. Ten lines of code and 30 minutes were spent on this idiotic fluff.
c1= (god=="Tzeench")  ? "DeepSkyBlue" : //Fluff. Your base color
    (god=="Nurgle")   ? "OliveDrab" :
    (god=="Slannesh") ? "DarkViolet" :
    "DarkRed";
c2= (god=="Tzeench")  ? "Aquamarine" :  //Fluff. The arrow color.
    (god=="Nurgle")   ? "Goldenrod" :
    (god=="Slannesh") ? "Fuchsia" :
    "DarkGoldenrod";
////////////// MAIN() ////////////
difference(){
    base();
    if(user_wants_a_slotted_base=="yes") slot();
    }
/////////// Functions() //////////
module slot(){
    rot=(slot_allignment=="edge") ? [0,0,0] : [0,0,extra_angle];
    translate([0,0,base_height-slot_depth/2+ep])
        rotate(rot)
            color(c2) cube([slot_width,slot_thickness,slot_depth],center=true);
    }
module base(){
    intersection(){
        //Cone with 8 sides
        color(c1) cylinder(r1=(1-inradius_factor/2)*base_width,r2=factor*(1-inradius_factor/2)*base_width,h=base_height,$fn=sides);
        //Truncating cylinder to make edges round
        color(c1) cylinder(r=base_width/2,h=base_height,$fn=60);
        }
    //The arrows along the sides
    for(i=[0:sides-1]){
        rotate([0,0,360*i/sides+1*extra_angle])
            translate(arrow_translation)
                rotate([yz_rotation,0,0])
                    color(c2)
                        linear_extrude(height)
                            translate(centering_translation)
                                arrow();
        }
    }
module test_circle(x){
    #linear_extrude(base_height*1.1){
        difference(){
            circle(x);
            circle(x-ep);
            }
        }
    }
//INSTRUCTIONS:
/* The code below produces an arrow with curvy edges. It does this by intersecting and taking the difference of 4 pairs of circles. 2 circles form the tip of the arrow (set1), and 2 form the back of the tip of the arrow(set2). The sides of the shaft are formed by set3, and the tail of the arrow is formed by set 4.

The circles are specified by a modified polar coordinate system called "easy_form" which is ={distance from origin to circle edge, radius of circle, angle between +x-axis and circle center in degrees}. This coordinate system is SLIGHTLY easier to get a grasp of entering values. Changing the first value will push a curve farther from the origin (the center of the arrow). Lowering the 2nd number will make a line more curvy (by lowering the radius of the circle it creates). Raising the 2nd number will make a line more flat (by increasing the radius of the circle it creates). Changing the 3rd number is how you get position control. The 3rd number is the angle that the angle that the line connecting the origin and the center of the circle will make with the x-axis.Both the first and the third parameters can be negative. Negative radii will fail silently.

It is highly reccommended that this program be used in OpenSCAD and not customizer. There is no input checking, and a lot of edge cases where circles will not intersect. If instead of an arrow looking thing, customizer or OpenSCAD show you two circles floating in space, it means that the circles are not intersecting, and the program is failing silently. If you wish to make a 2D file, use 0 for the height (I don't think this works in customizer). Offline, the program will also suggest a filename based on your parameters.

The last 4 functions in this program are used to calculate the points where the circles intersect, which is used to calculate the length and width of the arrow. This information is available through the echo function, and not visible in customizer. So if you want to know the dimensions of your arrow, use OpenSCAD.*/

///////// FUNCTIONS /////////
function intersection(circle1,circle2)=(norm(intersections(circle1,circle2)[0])<=norm(intersections(circle1,circle2)[1]))?intersections(circle1,circle2)[0]:intersections(circle1,circle2)[1];
function xyr_form(easy_form)=[
    //easy_form={distance from origin to circle edge, radius of circle,angle between +x-axis and cicle center}
    //xyr_form={x-cooridante of center,y-coordinate of center,radius of circle}
    (easy_form[0]+easy_form[1])*cos(easy_form[2]), //x=(diff+r)*cos(theta)
    (easy_form[0]+easy_form[1])*sin(easy_form[2]), //y=(diff+r)*sin(theta)
    easy_form[1] //r
    ];
module arrow(){
    top();
    bottom();
    }
module top(){ //The tip of the arrow
    difference(){
        intersection(){
            square(2*arrow_tip[1],center=true);
            pair(set2,$fn=200); //The back of the arrow
            }
        pair(set1,$fn=100); //The tip of the arrow
        }
    }
module bottom(){ //The shaft of the arrow
    difference(){
        intersection(){
            translate([0,-2.5,0])
                square(5,center=true);
            pair(set4,$fn=200); //The sides of the shaft
            }
        pair(set3,$fn=100); //The backof the shaft
        }
    }
function chord_of_circle_intersection(d,r,R)=(1/d)*sqrt(4*d*d*R*R-pow(d*d-r*r+R*R,2)); //from: http://mathworld.wolfram.com/Circle-CircleIntersection.html, Equation 8
module pair(triplet){
    /* Makes a pair of circles on the x-y plane for making the 8 arcs of the arrow. An array "triplet" is passed into the function which specifies the position and size of the circles. The 2nd parameter is the radius of the circles, the third is the angle that the line connecting the origin and the center of the circle will make with the x-axis, and the first parameter of the array is the distance between the origin and the nearest edge of the circle. Both the first and the third parameters can be negative. Negative radii will fail silently.*/
    radius=triplet[1];
    x=xyr_form(triplet)[0];
    y=xyr_form(triplet)[1];
    translate([x,y,0])
        circle(radius);
    translate([-x,y,0])
        circle(radius);
}
function intersections(circle1,circle2)=[
    [x1sol(xyr_form(circle1)[0],xyr_form(circle1)[1],xyr_form(circle1)[2],xyr_form(circle2)[0],xyr_form(circle2)[1],xyr_form(circle2)[2]),
    y1sol(xyr_form(circle1)[0],xyr_form(circle1)[1],xyr_form(circle1)[2],xyr_form(circle2)[0],xyr_form(circle2)[1],xyr_form(circle2)[2])],
    [x2sol(xyr_form(circle1)[0],xyr_form(circle1)[1],xyr_form(circle1)[2],xyr_form(circle2)[0],xyr_form(circle2)[1],xyr_form(circle2)[2]),
    y2sol(xyr_form(circle1)[0],xyr_form(circle1)[1],xyr_form(circle1)[2],xyr_form(circle2)[0],xyr_form(circle2)[1],xyr_form(circle2)[2])]
    ];
//The following are the solutions to the intersection of two circles with arbitrary radius and coordinates. Solved with Mathematica (9 Student/Home) on a Raspberry Pi using the algorithm discussed here: http://mathematica.stackexchange.com/questions/80695/formatting-an-equation-xy-to-powx-y, Many thanks to all the respondants. A circle intersects another at 0, 1 or 2 points. If circles do not intersect, then the following solutions would ideally be complex numbers. If they intersect at 1 point then (x1sol,x2sol)=(x2sol,y2sol). In the case of sensible inputs which create an arrow like we have in this program, there will be 2 solutions. In our case we will take the one that is closer to the origin. This will allow us to calculate the length and width of the arrow, so it can be scaled later.
function x1sol(x1,y1,r1,x2,y2,r2)=x1 + (r1*(((-x1 + x2)*(-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))))/(2.*r1) + ((-y1 + y2)*sqrt((1 + ((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)) - sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)*(1 + (-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)))/r1))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2));
function y1sol(x1,y1,r1,x2,y2,r2)=y1 + (r1*(((-y1 + y2)*(-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))))/(2.*r1) - ((-x1 + x2)*sqrt((1 + ((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)) - sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)*(1 + (-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)))/r1))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2));
function x2sol(x1,y1,r1,x2,y2,r2)=x1 + (r1*(((-x1 + x2)*(-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))))/(2.*r1) - ((-y1 + y2)*sqrt((1 + ((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)) - sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)*(1 + (-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)))/r1))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2));
function y2sol(x1,y1,r1,x2,y2,r2)=y1 + (r1*(((-y1 + y2)*(-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))))/(2.*r1) + ((-x1 + x2)*sqrt((1 + ((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)) - sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)*(1 + (-((-1 + pow(r2,2)/pow(r1,2))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2))) + sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2)))/2.)))/r1))/sqrt(pow(-x1 + x2,2)/pow(r1,2) + pow(-y1 + y2,2)/pow(r1,2));
```


[User]
Okay, I'm looking to get a custom drain catcher designed for my bathroom sinks and bathtub. I've seen some designs online, but they don't seem to be very parametric, and I'm having trouble getting the scaling right with existing files. I'd like an OpenSCAD design where I can easily adjust several parameters to fit different drain sizes.

Specifically, I need a drain catcher that sits inside the drain opening, has holes or slots around the sides to allow water to drain, and a way to easily remove it to empty it. Something similar to the attached file but with more robust parametric control and no issues with scaling. Here are the key parameters I need to adjust:

*   **Drain Diameter:**  This is the most crucial parameter. I need to be able to specify the inner diameter of the drain I'm using, and the design should scale accordingly. For reference, I'll need to handle at least 28.5mm for a bathroom sink and 38mm for a bathtub, but ideally, I should be able to specify *any* diameter.
*   **Height:** I need to be able to control how tall the drain catcher is.
*   **Wall Thickness:**  I need to be able to adjust the thickness of the walls of the drain catcher.
*   **Hole/Slot Size:** The size and shape of the holes or slots for water to drain through should be adjustable. I think vertical slots would work well, but maybe I could also choose to have round holes instead.
*   **Number of Holes/Slots:**  I'd like to control how many holes or slots are around the side of the drain catcher.
*   **Handle/Post Radius:** It'd be great to specify the radius of the post or handle in the center that's used to lift the catcher out of the drain.
*   **Handle/Post Height:** I also want to control the height of the central handle/post.
*   **Base Thickness (Optional):** It would also be useful if I could adjust the thickness of any base at the bottom of the catcher.
* **Helper Disk:** An optional base disk at the bottom that would help with bed adhesion during printing would also be handy; it should be toggleable and adjustable in its thickness.

I’m not sure if this needs multiple files or not, but I’m open to suggestions. It might be useful to have one file for the basic catcher and a second one for the handle post, or something like that.

I’m not super familiar with all of the OpenSCAD libraries, but it seems like it might be useful to use something like the BOSL2 library, if that would make things easier. I'm primarily looking to generate the final model but I'm not too concerned with how it's organized.

[Assistant]
DrainCatchFixed-UrbanV1_6.scad:
```
// By Urban Reininger   2015-06-15
// Twitter: UrbanAtWork
// Thingiverse: http://www.thingiverse.com/UrbanAtWork/
//
// Original by Thingiverse user: HarlanDMii

// I am currently editing this document so if it doesn't work that is why... (Monday Afternoon)
Notice="This files is being worked on";
//Drain Diameter (bathtub 38, bathroom sink 28.5) - I don't think this works right...
diameter=38; //

scale(diameter/36.25,[1,1,1]); //bathtub 38

// Add a Helper Disk for good plate adhesion (0.02 layer height)

// A 0.2mm helper disk will be added to the bottom to help plate adhesion. It's easy to break off.
HelperDisk = "yes"; // [yes,no]

//_______________________________________
// original design=36.25mm
// To calculate the scale..
// NewScale=DiameterRequired/36.25
//_______________________________________

difference(){
	union(){   // main drain basket
		intersection(){
		color ("green") cylinder(r1=35/2,r2=37/2,h=10,$fn=100);
		translate([0,0,12])
		color ("lime") sphere(19,$fn=100);
		}
		translate([0,0,10])
		cylinder(r1=37/2,r2=39/2,h=1.5,$fn=100);
	}

	translate([0,0,20])
	color ("orange") sphere(35.5/2,$fn=200);
	//translate([0,0,3])
	//color ("gold") cylinder(r=34.5/2,h=11,$fn=25);

	//r=25;

       difference(){                            // Urban Moved this outside of the for loop
	for (r=[0:40:359]){
		rotate(r)
	hull(){
           		translate([5,0,-8])
			rotate([0,90,0])
			cylinder(r1=.9,r2=3.75,h=28/2,$fn=45);
			translate([5,0,5])
			rotate([0,90,0])
			cylinder(r1=.9,r2=6.75,h=28/2,$fn=45);
		}

	}
                translate([0,0,10])                                       //Urban moved
		color ("silver") cylinder(r1=18.5,r2=19.5,h=1.5,$fn=45); // Urban moved this too
	}
	color ("plum") cylinder(r=3.5,h=10,center=true,$fn=9);	 // Center hole
}

  if(HelperDisk=="yes"){
	color ("green") cylinder(r=diameter/2.3,h=0.02,center=true,$fn=60);	 // Helper Disk on Bottom for easier printing adhesion.
    }
```