[User]
I'd like a design for a knob with a D-shaped shaft, like the one in the included code. The dimensions should be parametric, and I'd like to be able to specify:

*   The top diameter of the knob
*   The height of the top part
*   The length of the shaft
*   The outer diameter of the shaft
*   The inner diameter of the shaft (which forms the "D" shape)
*   The width of the flat part of the "D"
*   An offset for the flat part's position

Also, can you make it so that the top part of the knob is a smooth cylinder, and the shaft is also a cylinder with the D-shape cutout and pins? Basically, just a clean, functional knob with adjustable dimensions. I don't need anything extra fancy on the top or anything like that.

I'd like the code in OpenSCAD, and would prefer it to be written with no library dependencies.

[Assistant]
knob.with-d-shaft.02.scad:
```
//design and code by bioprint (http://www.thingiverse.com/bioprint)
//This code generates a knob with a D-shaft (customizable)
// 2013-12-07:	first design

// Top diameter
TopDiameter=18;
// Top height
TopHeight = 16; // [16]
// Shaft length
ShaftLength=18;
// Shaft outer diameter
ShaftOuterDiameter=10;
// Shaft inner diameter
ShaftInnerDiameter=7;
// Shaft pin width
ShaftPinWidth=2;
// XOffset
XOffset =1;

cylinder (h = TopHeight, r=TopDiameter/2, center = true, $fn=100);

difference() {
    			translate([0, 0, TopHeight])
    				cylinder (h = ShaftLength, r=ShaftOuterDiameter/2, center = true, $fn=100);
			translate([0, 0, TopHeight])
				cylinder (h = ShaftLength, r=ShaftInnerDiameter/2, center = true, $fn=100);
}

// add pins
PinHolderY=ShaftInnerDiameter/2-ShaftPinWidth/2;
PinholderX=sqrt(ShaftInnerDiameter*ShaftInnerDiameter/4-PinHolderY*PinHolderY)-XOffset;

translate([PinholderX/2+XOffset, PinHolderY/2+ShaftPinWidth/2, TopHeight])
	cube(size = [PinholderX,PinHolderY,ShaftLength], center = true);

translate([PinholderX/2+XOffset, 0-PinHolderY/2-ShaftPinWidth/2, TopHeight])
	cube(size = [PinholderX,PinHolderY,ShaftLength], center = true);

```


[User]
Okay, I need an OpenSCAD design for an enclosure for an Arduino and possibly some shields. It should be parametric so I can easily customize it for different Arduino types and shields.

Here's the breakdown of what I'm looking for:

**Core Functionality:**

*   **Arduino Compatibility:** The design should support various Arduino boards, specifically: Uno, USB v2.0, Extreme, Extreme v2, NG, NG Rev. C, Diecimila, Duemilanove, Leonardo, Mega 2560, Due, Mega, Mega ADK, Yún, and Ethernet. The dimensions of the case should adjust based on the selected Arduino board.
*   **Shield Stacking:** The design must allow for stacking of up to three shields on top of the Arduino. These shields can be chosen from a list of predefined types (None, GSM, Ethernet, Wifi, Wireless SD, Motor, MotorR3, WirelessProto, Proto, and a Custom type).
*  **Custom Shield Support:**  I need the option to define custom shields, specifying a custom label, height, and positions and widths of up to two front holes and one back hole.
*   **Hinged Design:** The case should have a hinged design, with both the front and back parts connected via hinges to the base. This is important for ease of access and for laying the ports flat on the print bed when printing.

**Parameters to Control:**

*   **Arduino Type:** Dropdown menu to select the specific Arduino model.
*   **Shield Selection:** Three dropdown menus to select the shield type for each of the possible shield positions in the stack.
*   **Custom Shield Parameters:**
    *   Custom Label (text input)
    *   Custom Height (numerical input in mm)
    *   Front Hole 1 Position (numerical input in mm)
	*   Front Hole 1 Height (numerical input in mm)
    *   Front Hole 1 Width (numerical input in mm)
    *   Front Hole 2 Position (numerical input in mm)
	*   Front Hole 2 Height (numerical input in mm)
    *   Front Hole 2 Width (numerical input in mm)
    *   Back Hole Position (numerical input in mm)
    *   Back Hole Height (numerical input in mm)
    *   Back Hole Width (numerical input in mm)
*   **Wall and Bottom Thickness:** Numerical input for the thickness of the side walls and bottom of the case (in mm).
*   **Connector Hole Heights:** Numerical inputs for the height of the power plug, USB plug, and Ethernet plug holes (in mm).
*   **Standoff Height:** Numerical input for the height of the standoffs inside the case (in mm).
*   **Standoff Hole Diameter:** Numerical input for the diameter of the standoff holes (in mm).
*  **Standoff Thickness:** Numerical input for the thickness of the standoff (in mm).
*   **Clearance:** Numerical input for the clearance between the Arduino/shield boards and the sidewalls of the case (in mm).
*   **Hinge gap:**  Numerical input for the gap between the hinge parts (in mm).

**Design Details:**

*   **Standoffs:** The case should include standoffs for mounting the Arduino board. The position of the standoffs needs to vary depending on the Arduino type.
*   **Plug Holes:** The case should have appropriate holes for access to the power plug, USB connector, and Ethernet port (if present on the selected board/shield).
*  **Labels:** Arduino type and shield labels should be printed on the case.

**Output:**

*   The design should be generated in a single OpenSCAD file, not using any external libraries like MCAD or BOLTS, but I would like to utilize the `Write.scad` library.
*   I want the output to be such that I can render different parts of the case (the whole case, just the front, just the back, just the bottom) so I can test fit easily.

It's important that everything is parametric and adjustable. I would also like to be able to render a preview of the whole case and each of the parts separately.

Let me know if you need more information.

[Assistant]
ArduinoCaseV20.scad:
```
//design and code by emanresu (http://www.thingiverse.com/Ema...
//generates a simple tray with standoffs for an arduino to sit in
// Tweaked a bit by Laird Popkin (http://www.thingiverse.com/laird

use <write/Write.scad>

//////////////////
// Parameters  //
//////////////////

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

/* [Stack] */

//Select Arduino type. Missing: Pro, Tre, Serial, Serial v2.0, Severino, Original, BT,
Arduino_Type = 0; //[0:Uno,1:USB v2.0,2:Extreme,3:Extreme v2,4:NG,5:NG Rev. C,6:Diecimila,7:Duemilanove,8:Leonardo,9:Mega 2560,10:Due,11:Mega,12:Mega ADK,13:Yún,14:Ethernet]

//Select shield closest to Arduino. Always place motor shield last for ease of access to screw terminals
Shield1 = 2; //[0:None, 1:GSM*, 2:Ethernet, 3:Wifi*, 4:WirelessSD*, 5:Motor*, 6:MotorR3*, 7:WirelessProto, 8:Proto, 9:Custom]
// Select second shield in stack. * means not verified. Please help!
Shield2 = 9; //[0:None, 1:GSM*, 2:Ethernet, 3:Wifi*, 4:WirelessSD*, 5:Motor*, 6:MotorR3*, 7:WirelessProto, 8:Proto, 9:Custom]
// Select third shield in stack. * means not verified. Please help!
Shield3 = 0; //[0:None, 1:GSM, 2:Ethernet, 3:Wifi, 4:WirelessSD, 5:Motor, 6:MotorR3, 7:WirelessProto, 8:Proto, 9:Custom]

//What Part to show?
part = 0; //[3:Preview, 0:Plated case to print, 1:Front test fit, 2:Back test fit]
// 10 = shapes
// 11 = front part
// 12 = back part
// 13 = bottom part

//Gap between hinge parts, etc.
gap = 0.6;

/* [Custom Shield] */

// Label
CustomLabel = "Steppers";
// Height (mm). Set to zero unless there is a custom shield.
CustomHeight = 20;
// Front hole center position, measured from labeled edge
FrontHolePos = 0;
// And height of center of front hole, measured from bottom of board
FrontHoleHeight = 0;
// And width of hole
FrontHoleWidth = 0;
// Front hole 2 center position, measured from labeled edge
FrontHolePos2 = 0;
// And height of center of front hole 2, measured from bottom of board
FrontHoleHeight2 = 0;
// And width of hole 2
FrontHoleWidth2 = 0;
// Back hole center position, measured from labeled edge
BackHolePos = 20;
// And height of center, measured from bottom of board
BackHoleHeight = 5;
// And width of back hole
BackHoleWidth = 30;

/* [Measurements] */

// (mm)
Thickness_Of_Side_Walls_And_Bottom  = 1.6;
// Height of power plug hole
Height_Of_Power_Plug_Hole=14;
// (mm)
Height_Of_USB_Plug_Hole=13;
// (mm)
Height_Of_Ethernet_Plug_Hole=16;
// (mm)
Width_Of_Ethernet_Plug_Hole=11.43+3;
// (mm)
Height_Of_Standoff = 7;
// (mm)
Standoff_Hole_Diameter = 2.9;
// (mm)
Standoff_Thickness = 1.6;
// (mm)
Clearance_Between_Arduino_And_Sidewalls = 1.5;

/* [Hidden] */

// Arduino types (matching param list above)

ard_label = ["Uno","USB v2.0","Extreme","Extreme v2","NG","NG Rev. C","Diecimila","Duemilanove","Leonardo","Mega 2560","Due","Mega","Mega ADK","Yún","Ethernet"];
ard_height= [21,19,19,19,19,19,19,19,19,19,19,19,19,19]; // height of each arduino model in mm, e.g. ard_height[Uno]=19.

Uno=0;
USBv2=1;
Extreme=2;
Extremev2=3;
NG=4;
NGRevC=5;
Diecimila=6;
Duemilanove=7;
Leonardo=8;
Mega2560=9;
Due=10;
Mega=11;
MegaADK=12;
Yun=13;
EthernetArduino=14;

// Shield types (matching param list above)

shield_label = ["None","GSM","Ethernet","Wifi","Wireless SD","Motor","MotorR3","WirelessProto","Proto","Custom"];
shield_height= [0,15,20,25,15,20,25,15,20,0]; // heights of shields (e.g. height[GSM] is height of GSM shield

None=0;
GSM=1;
Ethernet=2;
Wifi=3;
WirelessSD=4;
Motor=5;
MotorR3=6;
WirelessProto=7;
Proto=8;
Custom=9;

// Thickness of Arduino board (mm)
Board_Thickness=1.6;

// Hinge scaling
hingeScaleZ = 1;
hingeScaleX = 0.9;

hingeIn = 20;
hingeLen = 13;
hingeThick = 5;

//sets openSCAD resolution for nice, round holes
//$fa=1;
//$fs=0.5;
$fn=8;

//sets length for type of arduino specified, 101.6 mm for Mega, 68.58 mm for Uno
base_x = (Arduino_Type == Mega || Arduino_Type == Due || Arduino_Type == Mega2560 ? 101.6 : 68.58);
base_y = 53.34;

caseHeight = Thickness_Of_Side_Walls_And_Bottom//+Height_Of_Standoff
	+ard_height[Arduino_Type]
	+shield_height[Shield1]
	+shield_height[Shield2]
	+shield_height[Shield3]
	+(((Shield1==Custom)||(Shield2==Custom)||(Shield3==Custom))?CustomHeight:0);
caseLength = base_x+Thickness_Of_Side_Walls_And_Bottom*2+Clearance_Between_Arduino_And_Sidewalls*2;
caseWidth = base_y++Thickness_Of_Side_Walls_And_Bottom*2+Clearance_Between_Arduino_And_Sidewalls*2;

///////////////
// Modules //
///////////////

// LAP: modularized standoffs to make the Arduino_standoffs more compact/readable

module standoff(x, y) {
	translate([x, y, Height_Of_Standoff/2]) {
		difference() {
			cylinder(r=Standoff_Hole_Diameter/2+Standoff_Thickness, h=Height_Of_Standoff, center=true);
			cylinder(r=Standoff_Hole_Diameter/2, h=Height_Of_Standoff+1, center=true);
			}
		}
	}

module Arduino_standoffs() {
	// body...

	//arranging standoffs
	standoff(13.97, 2.54);
	standoff(15.24, 50.8);
	standoff(66.04, 7.62);
	standoff(66.04, 35.56);

	if (Arduino_Type == Mega || Arduino_Type == Due || Arduino_Type == Mega2560) {
		//adds extra standoffs for Mega, if specified
		standoff(90.17, 50.8);
		standoff(96.52, 2.54);
		}
	}

// Draw walls for a given height (e.g. for arduino or shield)

module walls(height) {
	echo("walls ",height);
	difference() {
		cube(
			size=[caseLength,
				caseWidth,
				height],
			center=false);
		translate([Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,-1]) {
				//main compartment
				cube(
					size=[base_x+2*Clearance_Between_Arduino_And_Sidewalls,
						base_y+2*Clearance_Between_Arduino_And_Sidewalls,
						height+2],
					center=false);
				}
		}
	}

// no longer used
module Arduino_lid() {
	cube( // bottom
			size=[base_x+2*Thickness_Of_Side_Walls_And_Bottom+2*Clearance_Between_Arduino_And_Sidewalls,
				base_y+2*Thickness_Of_Side_Walls_And_Bottom+2*Clearance_Between_Arduino_And_Sidewalls,
				Thickness_Of_Side_Walls_And_Bottom],
			center=false);
	translate([Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,0])
		cube( // bottom
			size=[base_x+2*Clearance_Between_Arduino_And_Sidewalls,
				base_y+2*Clearance_Between_Arduino_And_Sidewalls,
				2*Thickness_Of_Side_Walls_And_Bottom],
			center=false);
	}

// Base, walls around arduino, with holes for connectors

module Arduino_case_body() {

	cube( // bottom
			size=[base_x+2*Thickness_Of_Side_Walls_And_Bottom+2*Clearance_Between_Arduino_And_Sidewalls,
				base_y+2*Thickness_Of_Side_Walls_And_Bottom+2*Clearance_Between_Arduino_And_Sidewalls,
				Thickness_Of_Side_Walls_And_Bottom],
			center=false);

	// standoffs
	translate([Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Thickness_Of_Side_Walls_And_Bottom]) {
		Arduino_standoffs();
		}

	// body...

	difference() {
		color("green") translate([0,0,Thickness_Of_Side_Walls_And_Bottom])
			walls(ard_height[Arduino_Type]);

		///////////////
		//Plug Holes //
		///////////////

		// LAP: made bottom of plug holes below line up to the top of the board
		if (Arduino_Type == Uno || Arduino_Type == Due || Arduino_Type == MegaADK || Arduino_Type == Mega2560 || Arduino_Type == EthernetArduino || Arduino_Type == Leonardo) {
			//Barrel DC Plug
			translate([Thickness_Of_Side_Walls_And_Bottom/2, 7.62+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls,Board_Thickness+Height_Of_Power_Plug_Hole/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff]) {
			//power plug gap
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 8.89+2*Clearance_Between_Arduino_And_Sidewalls, Height_Of_Power_Plug_Hole], center=true);
			}
		}

	//USB Type B
	if (Arduino_Type == Uno || Arduino_Type == MegaADK || Arduino_Type == Mega2560) {
		translate([Thickness_Of_Side_Walls_And_Bottom/2, 38.1+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Height_Of_USB_Plug_Hole/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff+Board_Thickness]) {
		//USB plug gap
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 11.43+2*Clearance_Between_Arduino_And_Sidewalls, Height_Of_USB_Plug_Hole], center=true);
			}
		}

	//USB Type Micro B 2 and USB Type Micro B 1
	if (Arduino_Type == Due ) {
		translate([Thickness_Of_Side_Walls_And_Bottom/2, 38.1+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, 7/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff+Board_Thickness]) {
			//	USB plug gap
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 5+2*Clearance_Between_Arduino_And_Sidewalls, 7], center=true);
			}

		translate([Thickness_Of_Side_Walls_And_Bottom/2, 22.225+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, 7/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff+Board_Thickness]) {
			//USB plug gap
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 5+2*Clearance_Between_Arduino_And_Sidewalls, 7], center=true);
			}
		}

	//Ethernet and Ethernet plug gap
	if (Arduino_Type == EthernetArduino ) {
		translate([Thickness_Of_Side_Walls_And_Bottom/2, 38.1+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Height_Of_USB_Plug_Hole/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff+Board_Thickness]) {
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 11.43+2*Clearance_Between_Arduino_And_Sidewalls, Height_Of_USB_Plug_Hole], center=true);
			}
		}

	//USB Type Micro B and USB plug gap
	if (Arduino_Type == Leonardo ) {
		translate([Thickness_Of_Side_Walls_And_Bottom/2, 38.1+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, 7/2+Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff+Board_Thickness]) {
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, 5+2*Clearance_Between_Arduino_And_Sidewalls, 7], center=true);
			}
		}
	}

	// Label Arduino
	translate([5,0,Thickness_Of_Side_Walls_And_Bottom+Height_Of_Standoff])
		rotate([90,0,0]) scale([2,2,1]) write(ard_label[Arduino_Type]);

	}

// Make a  shield with label, height, and holes given

module makeShield(Label, Height, FrontHolePos,FrontHoleWidth,FrontHoleHeight,FrontHolePos2,FrontHoleWidth2,FrontHoleHeight2,BackHolePos,BackHoleWidth,BackHoleHeight) {
	echo("SHIELD", Height,FrontHolePos,FrontHoleWidth,FrontHoleHeight,FrontHolePos2,FrontHoleWidth2,FrontHoleHeight2,BackHolePos,BackHoleWidth,BackHoleHeight);
	// add board #previews

	// make walls and subtract holes
	difference() {
		union() {
			walls(Height);
			translate([5,0,Board_Thickness]) rotate([90,0,0]) scale([2,2,1]) write(Label);
			}
		translate([Thickness_Of_Side_Walls_And_Bottom/2, FrontHolePos+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Height/2])
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, FrontHoleWidth+2*Clearance_Between_Arduino_And_Sidewalls, FrontHoleHeight], center=true);
		translate([Thickness_Of_Side_Walls_And_Bottom/2, FrontHolePos2+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Height/2])
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, FrontHoleWidth2+2*Clearance_Between_Arduino_And_Sidewalls, FrontHoleHeight2], center=true);

		// FINISH THIS

		translate([base_x+Thickness_Of_Side_Walls_And_Bottom*1.5+2*Clearance_Between_Arduino_And_Sidewalls, BackHolePos+Thickness_Of_Side_Walls_And_Bottom+Clearance_Between_Arduino_And_Sidewalls, Height/2])
			cube(size=[Thickness_Of_Side_Walls_And_Bottom+1, BackHoleWidth+2*Clearance_Between_Arduino_And_Sidewalls, BackHoleHeight], center=true);
		}
	}

// shield of given type (i.e. provide hole info for known shields

module shield(shield_type) {
	if (shield_type>0) { // 0 means no shield

// keep: shield_type==Custom? CustomLabel : shield_label[shield_type]

				if (shield_type == Ethernet) {
					makeShield(shield_label[shield_type],shield_height[shield_type],38.1,13.43,Height_Of_Ethernet_Plug_Hole,0,0,0,0,0,0);
						}
					}
				if (shield_type == Custom) {
					makeShield(CustomLabel,CustomHeight,FrontHolePos,FrontHoleWidth,FrontHoleHeight,FrontHolePos2,FrontHoleWidth2,FrontHoleHeight2,BackHolePos,BackHoleWidth,BackHoleHeight);
					}
				if ((shield_type != Custom) && (shield_type != Ethernet) && (shield_type != None)) {
					makeShield(shield_label[shield_type],shield_height[shield_type],0,0,0,0,0,0,0,0,0);
					}
				}

////////////////////
//  Control Code  //
////////////////////

module case() {
	union() {
		//Joins case body with standoffs
		color("blue") Arduino_case_body();
		color("purple") translate([0,0,Thickness_Of_Side_Walls_And_Bottom+ard_height[Arduino_Type]])
			shield(Shield1);
		color("red") translate([0,0,Thickness_Of_Side_Walls_And_Bottom+ard_height[Arduino_Type]+shield_height[Shield1]])
			shield(Shield2);
		color("orange") translate([0,0,Thickness_Of_Side_Walls_And_Bottom+ard_height[Arduino_Type]+shield_height[Shield1]+shield_height[Shield2]])
			shield(Shield3);
		color("yellow") translate([0,0,caseHeight]) cube([caseLength,caseWidth,Thickness_Of_Side_Walls_And_Bottom]);
		// guides for assembly
		color("white") {
			translate([Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,caseHeight-Thickness_Of_Side_Walls_And_Bottom])
				cube(Thickness_Of_Side_Walls_And_Bottom);
			translate([Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,caseHeight-2*Thickness_Of_Side_Walls_And_Bottom])
				cube([caseLength-2*Thickness_Of_Side_Walls_And_Bottom,2*Thickness_Of_Side_Walls_And_Bottom,2*Thickness_Of_Side_Walls_And_Bottom]);
			translate([Thickness_Of_Side_Walls_And_Bottom,caseWidth-2*Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom])
				cube([caseLength-2*Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,Height_Of_Standoff]);
			translate([Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom])
				cube([caseLength-2*Thickness_Of_Side_Walls_And_Bottom,Thickness_Of_Side_Walls_And_Bottom,Height_Of_Standoff]);
			translate([caseLength-2*Thickness_Of_Side_Walls_And_Bottom,
					Thickness_Of_Side_Walls_And_Bottom,
					Thickness_Of_Side_Walls_And_Bottom])
				cube([Thickness_Of_Side_Walls_And_Bottom,caseWidth-2*Thickness_Of_Side_Walls_And_Bottom-gap,Height_Of_Standoff]);
			translate([Thickness_Of_Side_Walls_And_Bottom,
					Thickness_Of_Side_Walls_And_Bottom,
					Thickness_Of_Side_Walls_And_Bottom])
				cube([Thickness_Of_Side_Walls_And_Bottom,caseWidth-2*Thickness_Of_Side_Walls_And_Bottom-gap,Height_Of_Standoff]);
		}

		}
	}

// intersect this with case to get the base
module bottomShape() {
	difference() {
		translate([-gap,-1-gap,-gap]) cube([caseLength+2*gap,caseWidth+1+2*gap,caseHeight+2*gap]);
		frontShape();
		backShape();
	}
}

// intersect this with case to get the front half
module frontShape() {
	mirror([1,0,0]) translate([-caseLength,0,0]) backShape();
	}

// intersect this with case to get the back half
module backShape() {
	// top
	translate([caseLength/2,-gap,caseHeight-gap])
		cube([caseLength/2+2*gap,caseWidth+2*gap,Thickness_Of_Side_Walls_And_Bottom+2*gap]);
	// left side
	translate([caseLength/2,caseWidth-Thickness_Of_Side_Walls_And_Bottom-gap,Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick/2])
		cube([caseLength/2+2*gap,Thickness_Of_Side_Walls_And_Bottom+2*gap,caseHeight+Thickness_Of_Side_Walls_And_Bottom+2*gap-(Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick/2)]);
	// right side
	translate([caseLength/2,-gap-1,Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick/2])
		cube([caseLength/2+2*gap,1+Thickness_Of_Side_Walls_And_Bottom+2*gap,caseHeight+Thickness_Of_Side_Walls_And_Bottom+2*gap-(Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick/2)]);
	// back
	translate([caseLength-Thickness_Of_Side_Walls_And_Bottom-gap,-gap,
			Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick])
		cube([2*gap+Thickness_Of_Side_Walls_And_Bottom,caseWidth+2*gap,caseHeight+gap-(Thickness_Of_Side_Walls_And_Bottom+gap+hingeThick)]);
	// guides
	translate([caseLength/2,Thickness_Of_Side_Walls_And_Bottom,caseHeight-2*Thickness_Of_Side_Walls_And_Bottom-gap])
		cube([caseLength/2,2*Thickness_Of_Side_Walls_And_Bottom+gap,2*Thickness_Of_Side_Walls_And_Bottom+gap]);

	// translate([caseLength-hingeThick/2,caseWidth/2,hingeThick/2]) rotate([90,0,0])
//		difference() {
			// cylinder(r=hingeThick/2,h=caseWidth+2*gap,center=true, $fn=32);
			// translate([0,0,0]) cylinder(r=hingeThick+2*gap+1,
			// 	h=caseWidth-2*(gap+Thickness_Of_Side_Walls_And_Bottom),center=true, $fn=32);
			// }
	}

module caseBottom() {
	intersection() {
		case();
		bottomShape();
	}
}

module caseFront() {
	intersection() {
		case();
		frontShape();
	}
}

module caseBack() {
	intersection() {
		case();
		backShape();
	}
}

module front() {
	intersection(){
		case();
		cube([Thickness_Of_Side_Walls_And_Bottom, caseWidth, caseHeight+Thickness_Of_Side_Walls_And_Bottom]);
	}
}

module back() {
	intersection(){
		case();
		translate([caseLength-Thickness_Of_Side_Walls_And_Bottom,0,0]) cube([Thickness_Of_Side_Walls_And_Bottom, caseWidth, caseHeight+Thickness_Of_Side_Walls_And_Bottom]);
	}
}

// place hinge between standoffs
hingePos = caseWidth*.42;
frontHingePos = caseWidth/2;

module platedCase() {
	// bottom
	difference() {
		caseBottom();
		// minus holes for the two hinges
		translate([caseLength-hingeThick/2,hingePos,-1]) rotate([0,0,90])
			scale([.9,1,1]) demoHole(hingeThick,.5,0);
		translate([hingeThick/2,frontHingePos,-1]) rotate([0,0,90])
			scale([.9,1,1]) demoHole(hingeThick,.5,0);
		}

	// back
	difference() {
		translate([caseLength-hingeThick,0,0])rotate([0,90,0]) translate([-caseLength,0,0]) caseBack();
		translate([caseLength-hingeThick/2,hingePos,-1]) {
			rotate([0,0,90])
				scale([.9,1,1]) demoHole(hingeThick,.5,gap);
			//translate([0,(caseWidth/2-hingePos),hingeThick/2]) rotate([90,0,0]) cylinder(r=hingeThick+2*gap,h=caseWidth,center=true, $fn=32);
			}
		// hinge gap
		translate([caseLength-hingeThick/2,caseWidth/2,hingeThick/2]) rotate([90,0,0])
			cylinder(r=hingeThick+gap,h=caseWidth+2*gap,center=true, $fn=32);
		}

	// back hinge
	color("yellow") translate([caseLength-hingeThick/2,hingePos,0]) rotate([0,0,-90])
		scale([hingeScaleX,1,hingeScaleZ]) demo(hingeThick,gap/hingeScaleZ);
	echo("HINGE GAP ",gap);

	// front
	difference() {
		translate([hingeThick,0,0]) rotate([0,-90,0]) caseFront();
		translate([caseLength-hingeThick/2,hingePos,-1]) {
			rotate([0,0,90])
				scale([.9,1,1]) demoHole(hingeThick,.5,gap);
			//translate([0,(caseWidth/2-hingePos),hingeThick/2]) rotate([90,0,0]) cylinder(r=hingeThick+2*gap,h=caseWidth,center=true, $fn=32);
			}
		translate([hingeThick/2,caseWidth/2,hingeThick/2]) rotate([90,0,0])
			cylinder(r=hingeThick+gap,h=caseWidth+2*gap,center=true, $fn=32);
			}

	// front hinge
	color("yellow") translate([hingeThick/2,frontHingePos-1.25,0]) rotate([0,0,90])
		scale([hingeScaleX,1,hingeScaleZ]) demo(hingeThick,gap/hingeScaleZ);
	echo("HINGE GAP ",gap);

	}

if (part==0) platedCase();
if (part==1) rotate([0,90,0]) front();
if (part==2) translate([0,0,caseLength]) rotate([0,90,0]) back();
if (part==3) case();
if (part==10) {
	color("blue") frontShape();
	color("red") backShape();
	color("green") bottomShape();
	}
if (part==11) caseFront();
if (part==12) caseBack();
if (part==13) caseBottom();

//case();
//halfShape();
//topHalf();
//bottomHalf();
//front();

////////////////////
//   Hinge Code   //
////////////////////

// What diameter or thickness should the hinge have (in 0.01 mm units)?
//hinge_dia = 500; // [1:5000]

// How much gap should be left between separate parts (in 0.01 mm units)?
//hinge_gap = 40; // [1:2000]

module hingepair() {
	union() {
		cylinder(h=0.25, r=0.5);
		translate([0,0,0.25]) cylinder(h=0.25, r1=0.5, r2=0.25);
		translate([0,0,1]) cylinder(h=0.25, r1=0.25, r2=0.5);
		translate([0,0,1.25]) cylinder(h=0.25, r=0.5);
	}
}

module hingecore(gap) {
	union() {
		difference() {
			union() {
				cylinder(h=1.5, r=0.5);
				translate([-0.5,0,0.25+gap])
					cube(size=[1,1,1-gap-gap]);
				// corner
				translate([0,-0.5,0.25+gap])
					cube(size=[0.5,0.5,1-gap-gap]);
			}
			translate([0,0,0.25+gap-0.5]) cylinder(h=0.75, r1=1, r2=0.25);
			translate([0,0,1-gap]) cylinder(h=0.75, r1=0.25, r2=1);
		}
		translate([-0.5,0.5+gap,0])
			cube(size=[1,0.5-gap,1.5]);
	}
}

module hingeedge(gap) {
	union() {
		hingepair();
		translate([-0.5,-1,0])
			cube(size=[1,0.5-gap,1.5]);
		translate([-0.5,-1,0])
			cube(size=[1,1,0.25]);
		translate([-0.5,-1,1.25])
			cube(size=[1,1,0.25]);
		translate([0,0,1.25])
			cube(size=[0.5,0.5,0.25]);
		translate([0,0,0])
			cube(size=[0.5,0.5,0.25]);
	}
}

module hinge(thick, realgap) {
	hingeedge(realgap / thick);
	hingecore(realgap / thick);
}

module demoHole(t, rg, outer) {
	scale([t,t,t+t])
	translate([0-0.125,0,0.5])
	rotate(a=[0,90,0]) {
		cube([1,2,1.25*4+.25], center=true);
		if (outer) cylinder(r=.7,h=1.25*4+.75,center=true);
		}
	}

module demo(t, rg) { // modified to make only two hinges
	//demoHole(t, rg);
	scale([t,t,t])
	translate([-2.5,0,0.5])
	rotate(a=[0,90,0])
	union() {
		for (z=[0:1.25:3.75]) {
			color("grey") translate([0,0,z]) hinge(t, rg);
		}
		translate([0,1,0]) cube(size=[.5,gap,5.25]);
		//translate([1,-2,1.25]) cube(size=[1,1,5.25]);
	}
}
```


[User]
Okay, so I've got this car panel pry tool I've been using, and it's... okay. It worked well enough to get some trim pieces off, but it broke when I was trying to get a really stubborn plug out. I think a better version of this thing would be super useful, not just for cars.

I have some OpenSCAD code for the basic design, but I'd love it if you could help me make a truly parametric, versatile version. Basically, I need to be able to tweak all the dimensions.

Here's what I'm thinking, using my existing code for reference:

**Core Features:**

*   **Handle:** The main body should be a handle, with adjustable length, width, and thickness.
*   **Pry Tip:** The pry end should be based on the intersection of a cylinder and a box, but the exact shape is not what matters the most. What matters most is that the pry end can vary in length, width, and overall "thickness" (how wide it flares out).
*   **Hole or Recess:** I have a cylinder subtracted on the pry end that is okay, but It might be nice if this could be toggled or switched to a different shape, like a shallow rectangular recess instead. It should be positionable as well.
*  **Tapering:** It would be great if the transition from the handle to the pry tip could have a variable taper.

**Parameters to Control:**

*   `handle_length`:  Length of the handle.
*   `handle_width`: Width of the handle.
*   `handle_thickness`:  Thickness of the handle.
*   `pry_length`: How far the tip extends from the main body.
*  `pry_base_width` The width of the pry tip at it's base.
* `pry_tip_width`: How wide the very end of the pry tip is.
*   `pry_thickness` How thick the pry end is.
*   `hole_radius` or `recess_width` , `recess_height` Depth of the hole/recess.
*   `hole_offset_x`, `hole_offset_y`, `hole_offset_z`: Position of the hole/recess.
*   `taper_angle`: Angle of the taper between handle and tip.
*   `taper_length`: How long the taper is.

**Optional Features/Variations:**

*   Maybe instead of just a cylinder for the "hole," it could be a rectangle, or some other primitive. It would be great to have an enum or something to pick a shape.
*   Perhaps there could be a small radius or fillet along the edges of the handle.
*   I'd also like to be able to toggle between having a hole and a recess and maybe no feature at all.

**Output:**

*   I'd prefer a single file for the entire pry tool.

I am not worried about the shape of the pry tip being perfect but I want it to have a "wedge" profile and for the parameters I requested to be customizable.

Could you generate the OpenSCAD code for this?

[Assistant]
car_panel_pry_tool.scad:
```
//car panel pry tool
//Alex Tanchoco (LionAlex)
//Dec 14,2013

handle_length = 100;
handle_width = 10;
handle_thickness = 4;

rotate( [0,0,90] )
{
	difference() {
	intersection() {

		translate( [0,0,-handle_thickness*0.8] )
			rotate( [90,0,0] )
				rotate( [0,0,45] )
					cylinder( h=handle_length+handle_width, r2=handle_width+handle_thickness, r1=0, $fn=4, center=true );
			base_shape();

		}
		translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/4, $fn=32, center=true );
	}
}

module base_shape() {
			cube( [handle_width,handle_length*0.75,handle_thickness],center=true );
			translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/2, $fn=32, center=true );
		}

```
car_panel_pry_tool.scad:
```
//Customizable panel pry tool
//Alex Tanchoco (LionAlex)
//Dec 14,2013

handle_length = 200;
handle_width = 20;
handle_thickness = 6;

rotate( [0,0,90] )
{
	difference() {
	intersection() {

		translate( [0,0,-handle_thickness] )
			rotate( [90,0,0] )
				rotate( [0,0,45] )
					cylinder( h=handle_length+handle_width, r2=handle_width+handle_thickness, r1=0, $fn=4, center=true );
			base_shape();

		}
		translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/4, $fn=32, center=true );
	}
}

module base_shape() {
			cube( [handle_width,handle_length*0.75,handle_thickness],center=true );
			translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/2, $fn=32, center=true );
		}

```
customizable_panel_pry_tool.scad:
```
//Customizable panel pry tool
//Alex Tanchoco (LionAlex)
//Dec 14,2013

handle_length = 200;
handle_width = 20;
handle_thickness = 6;

rotate( [0,0,90] )
{
	difference() {
	intersection() {

		translate( [0,0,-handle_thickness] )
			rotate( [90,0,0] )
				rotate( [0,0,45] )
					cylinder( h=handle_length+handle_width, r2=handle_width+handle_thickness, r1=0, $fn=4, center=true );
			base_shape();

		}
		translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/4, $fn=32, center=true );
	}
}

module base_shape() {
			cube( [handle_width,handle_length*0.75,handle_thickness],center=true );
			translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/2, $fn=32, center=true );
		}

```
customizable_panel_pry_tool.scad:
```
//Customizable panel pry tool
//Alex Tanchoco (LionAlex)
//Dec 14,2013

handle_length = 200;
handle_width = 20;
handle_thickness = 6;

rotate( [0,0,90] )
{
	difference() {
	intersection() {

		translate( [0,0,-handle_thickness] )
			rotate( [90,0,0] )
				rotate( [0,0,45] )
					cylinder( h=handle_length+handle_width, r2=handle_width+handle_thickness, r1=0, $fn=4, center=true );
			base_shape();

		}
		translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/4, $fn=32, center=true );
	}
}

module base_shape() {
			cube( [handle_width,handle_length*0.75,handle_thickness],center=true );
			translate( [0,-handle_length*0.375,0] )
				cylinder( h=handle_thickness, r=handle_width/2, $fn=32, center=true );
		}

```


[User]
I'm looking to design a parametric collet holder, specifically for ER collets, and I want to be able to control the number of rows and columns of collet slots, the specific ER collet size, and whether the bottom of the holder is open or closed. I also need an option to include a top cover, so it's a fully enclosed box.

Here's what I'm thinking for parameters:

*   **Number of Rows:** An integer controlling how many rows of collets I want.
*   **Number of Columns:** An integer controlling how many columns of collets I want.
*   **Collet Type:** Initially, just "ER", but maybe in the future others.
*   **ER Collet Size:** A dropdown or similar that would allow me to choose between ER8, ER11, ER16, ER20, ER25, ER32, ER40, and ER50 sizes.
*   **Open Bottom:** A boolean or a "yes/no" option for whether the bottom of the holder should be open.
*   **Top Cover:** A boolean or a "yes/no" option for including a top cover.
*  **Smoothness:** A parameter that controls the resolution of the collet cone.

I'm envisioning each collet being held in its own distinct pocket. Also, the collet pockets should have the appropriate taper for ER collets.  I'd like the code to be clear and easy to modify if needed. Please make use of `for` loops rather than manual repetition wherever practical. It would be great if you could use an established library to make the cone primitives, if that's an option. I don't have a library in mind though, so feel free to choose. I think the final STL should be smooth.

[Assistant]
collet-holder2.scad:
```
/* [Global] */
// Number of Collet Places in a row
rows=2; // [1:50]
// Number of Collet Places in a column
columns=5; // [1:50]
// Type of Collet, currently ER only
collettype="ER"; //["ER"]
// Size of the collet (for ER collets)
colletsizeER=16; // [8:ER8, 11:ER11, 16:ER16, 20:ER20, 25:ER25, 32:ER32, 40:ER40, 50:ER50]
// Specify If box bottom should be open, or not
openbottom="yes"; // [yes, no]
// Create Top Cover?
topcover="yes"; // [yes, no]
//Smoothness of cones in STL
smooth=50; // [10:rough, 50:medium, 100:fine]
/////////////////////////////////////////////////////////////////
/* [Hidden] */
//Static Things
/*er8=[8,10.9,13.6]; //Diameter, Lenght of Long cone, total lenght of collet
er11=[11,13.5,18];
er16=[16,20.8,27.5];
er20=[20,23.9,31.5];
er25=[25,25.9,34];
er32=[32,30.9,40];
er40=[40,34.9,46];
er50=[50,46,60];
//Collet Specs taken from http://www.rego-fix.com/fileadmin/user_upload/Bilder_Zeichnungen_PDF/home/Produkte/Technische_Infos/REGO-FIX_ER_Dimensions_ER_Collets.pdf
// Another source of sizes http://www.takayama-shoji.co.jp/rego/pdf/13_technical_information.pdf
*/

module draw_er_collet(diameter, longcone, colletlenght, openbottom, clamprange) {
	for (xpos=[1:rows], ypos = [1:columns]) {
		if (openbottom=="no") {
			translate([xpos*(diameter+2.999), ypos*(diameter+2.999), longcone/2+1.5]) difference () {
				if (openbottom=="no") {
					translate ([0,0,-1]) cube(size = [diameter+3,diameter+3,longcone+1], center = true);
				} else {
					cube(size = [diameter+3,diameter+3,longcone], center = true);
				} //endif
					cylinder(h = longcone, r1 = (diameter-2*longcone*tan(8))/2+clamprange, r2 = diameter/2+clamprange, center = true, $fn=smooth );
			} // enddifference
		} else {
			translate([xpos*(diameter+2.999), ypos*(diameter+2.999), longcone/2]) difference () {
				if (openbottom=="no") {
					translate ([0,0,-1]) cube(size = [diameter+3,diameter+3,longcone+1], center = true);
				} else {
					cube(size = [diameter+3,diameter+3,longcone], center = true);
				}
					cylinder(h = longcone+0.001, r1 = (diameter-2*longcone*tan(8))/2+clamprange, r2 = diameter/2+clamprange, center = true, $fn=smooth );
			}// enddifference
		} //endif
		if (topcover=="yes") {
			if (openbottom=="no") {
				translate([-xpos*(diameter+2.999), ypos*(diameter+2.999), (colletlenght-longcone)/2+1.5]) difference () {
					if (openbottom=="no") {
						translate ([0,0,-1]) cube(size = [diameter+3,diameter+3,colletlenght-longcone+2], center = true);
					} else {
						cube(size = [diameter+3,diameter+3,colletlenght-longcone], center = true);
					}
					cylinder(h = colletlenght-longcone+1, r1 = (diameter-2*longcone*tan(8))/2+2+clamprange, r2 = diameter/2+clamprange, center = true, $fn=smooth );
				}//enddifference
			}else {
				translate([-xpos*(diameter+2.999), ypos*(diameter+2.999), (colletlenght-longcone)/2]) difference () {
					if (openbottom=="no") {
						translate ([0,0,-1]) cube(size = [diameter+3,diameter+3,colletlenght-longcone+1], center = true);
					} else {
						cube(size = [diameter+3,diameter+3,colletlenght-longcone], center = true);
					}
					cylinder(h = colletlenght-longcone+0.001, r1 = (diameter-2*longcone*tan(8))/2+2+clamprange, r2 = diameter/2+clamprange, center = true, $fn=smooth );
				}//enddifference
			}//endif
		}//endif
	} //endfor
} //endmodule

module set_collet_parameters (type, size) {
	if (type=="ER") {
		if (size==8) { //Collet Diameter; Lenght of Long cone; total lenght of collet;the collet is bigger this size, when it is open (in radius)
			draw_er_collet (8,10.9,13.6,openbottom,0.3);
		}
		if (size==11) {
			draw_er_collet (11,13.5,18,openbottom,0.5);
		}
		if (size==16) {
			draw_er_collet (16,20.8,27.5,openbottom,0.8);
		}
		if (size==20) {
			draw_er_collet (20,23.9,31.5,openbottom,1);
		}
		if (size==25) {
			draw_er_collet (25,25.9,34,openbottom,1);
		}
		if (size==32) {
			draw_er_collet (32,30.9,40,openbottom,1);
		}
		if (size==40) {
			draw_er_collet (40,34.9,46,openbottom,1);
		}
		if (size==50) {
			draw_er_collet (50,46,60,openbottom,1);
		}
	}

}

if (collettype=="ER") {
	set_collet_parameters(collettype,colletsizeER);
}

```


[User]
Hi, I'm looking to get an OpenSCAD file (or a set of them if needed) to generate a customizable fan mount. I'm thinking it should be able to handle different fan sizes, specifically 40mm, 50mm, 60mm, and 80mm. It'd also be great if I could choose if I want an extension arm for mounting the fan to something else.

The basic design will be a plate that attaches to the fan, and then if I choose, an additional extension piece for mounting that plate to something else.

I want to be able to specify the screw hole size for both the fan itself and the mount, maybe defaulting to #6 screws, but I'd like to be able to use M3s if needed, too. I'll need to be able to specify a screw size for the extension piece as well.

I'd like to have some control over the mounting tab position, specifically the distance from the Y axis, the length of that tab, and the mounting angle it makes with the plate. I'd also need control over the extension's length, and angle relative to the mount.

For the plate itself, I want to be able to choose between a full plate or a two-screw mount option. It should still have all four screw holes for the fan either way - I just don't want an entire plate behind the fan if I'm mounting it directly to something else.

I'm thinking I could probably use standard cylinder and cube shapes, but I'm not entirely sure. It might be useful to use the `minkowski()` function to create the rounded edges to make it look a bit nicer.

The OpenSCAD code should be well-commented so I can understand what each section is doing, and easy to modify. I’m not using any external libraries myself, and I don’t need to use any custom libraries for this project.

The attached file is a starting point, but I don't need to work off of it if you'd prefer to start fresh.

[Assistant]
Customizable_Fan_Mount.scad:
```
$fn=60/1;

//Fan Size
fan_size=40;           //[40:40mm, 50:50mm, 60:60mm, 80:80mm]
//Generate Extension?
extension=1;           //[1:Yes, 0:No]
//Fan Screw Spacing (choose Fan Size here)
screw_spacing=32;      //[32:40mm, 40:50mm, 50:60mm, 72:80mm]
//Fan Screw Hole Radius (use 2 for #6 (default), 1.7 for M3)
fan_screw=2;
//Mount Screw Hole Radius, Both Parts (use 2 for #6 (default), 1.7 for M3)
mount_screw=2;
//Extension Screw Hole Radius (use 2 for #6 (default), 1.7 for M3)
extension_screw=2;
//Mount Tab Position from Y Axis
mount_position=15;
//Mount Tab Length (from edge of plate to center of cylinder)
mount_length=12;
//Extension Length (from flat end to center of cylinder)
extension_length=20;
//Plate Mount Angle
mount_angle=90;        //[90:Parallel to Plate, 0:Perpendicular to Plate]
//Extension Mount Angle
extension_mount_angle=90; //[90:Parallel to Extension, 0:Perpendicular to Extension]
//Full Plate (default) or Two Screw Option
full_plate=1;          //[0:Two Screws, 1:Full Plate]
//

//Derived Variables
fanscrewmargin=fan_size/2-screw_spacing/2; //margin from edge of fan to center of fan screw hole

//Fan Bracket
module holes(){

//Fan Screw Holes
if(full_plate==1){
translate ([fanscrewmargin,fanscrewmargin,-0.1])
cylinder (r=fan_screw, h=3.2);

translate ([fan_size-fanscrewmargin,fanscrewmargin,-0.1])
cylinder (r=fan_screw, h=3.2);
}

translate ([fanscrewmargin,fan_size-fanscrewmargin,-0.1])
cylinder (r=fan_screw, h=3.2);

translate ([fan_size-fanscrewmargin,fan_size-fanscrewmargin,-0.1])
cylinder (r=fan_screw, h=3.2);

//Mount screw hole
translate ([mount_position+5,fan_size+mount_length,5])
rotate ([0,mount_angle,0])
cylinder (r=mount_screw, h=10.2, center=true);

//Fan opening
translate ([fan_size/2,fan_size/2,-0.1])
cylinder (r=fan_size/2*0.875, h=3.2);
}

module solids(){

//Fan Plate
if(full_plate==0){
translate ([2,fan_size*0.75+2,0])
minkowski(){
cube ([fan_size-4,fan_size*0.25-4,1.5]);
cylinder (r=2, h=1.5);
}
} else{
translate ([2,2,0])
minkowski(){
cube ([fan_size-4,fan_size-4,1.5]);
cylinder (r=2, h=1.5);
}
}

//Mount Cylinder and Tab
translate ([mount_position,fan_size-2,0])
cube ([10,mount_length+2,3]);

translate ([mount_position+5,fan_size+mount_length,5])
rotate ([0,mount_angle,0])
cylinder (r=5, h=10, center=true);
}

//Part Repositioning for Two Screw Option
if(full_plate==0){
translate ([0,-fan_size*0.75,0])
difference(){
solids();
holes();
}
} else{
difference(){
solids();
holes();
}
}

//Extension
module eholes(){

//Screw Hole
translate ([fan_size+10,4,-0.1])
cylinder (r=extension_screw, h=3.2);

//Cylinder Screw Hole
translate ([fan_size+10,extension_length,5])
rotate([0,extension_mount_angle,0])
cylinder (r=mount_screw, h=10.2, center=true);

}
module esolids(){

//Extension Plate
translate ([fan_size+7, 2, 0])
minkowski(){
cube ([6,extension_length-4,1.5]);
cylinder (r=2, h=1.5);
}

//Small Cube to clean up merge with Cylinder
translate ([fan_size+5, extension_length-2,0])
cube ([10,2,3]);

//Extension Cylinder
translate ([fan_size+10,extension_length,5])
rotate ([0,extension_mount_angle,0])
cylinder (r=5, h=10, center=true);
}
if(extension==1){
difference(){
esolids();
eholes();
}
}

```


[User]
Okay, I'm looking to create a replacement wristband for my Fitbit Flex, and I'd like it to be parametric so I can easily adjust it for different wrist sizes. I also want a simple box to store or present the band.

Here's what I have in mind:

**Wristband:**

*   **Core Design:** The band should consist of a central housing for the Fitbit Flex module, with links extending outwards on both sides. The core housing needs a cutout to hold the flex and another cutout to access it.
*   **Fitbit Housing:** The housing should securely hold the Fitbit Flex. It needs to be designed with the correct dimensions to hold the device and have an opening for inserting and removing the flex. I'd like it to be slightly angled so the flex is at an angle when worn.
*   **Links:** The band should have multiple links connected by hinges. These links need to be parametric in length.
*   **Hinges:** I want to use the printable hinge design (the same or similar to the included hinge).
*   **End Connectors:** The band should have male and female end connectors that lock together.
*   **Parametric Dimensions:**
    *   **Wrist Length:** The total length of the band should be adjustable based on wrist circumference, either in millimeters or inches.
    *   **Link Length:** The length of each individual link needs to be easily adjustable to change the overall fit of the band.
    *   **Width/Thickness:** The width of the band and thickness of the links need to be parameters. I would like to make them different for the main face and for the links.
*   **Materials:** I'm planning to print it with standard PLA or PETG so no specific material requirements.

**Box:**

*   **Simple Box:** The box should be a simple rectangular box with a lid.
*   **Fit:** The inside dimensions should be large enough to comfortably store the wristband when it's not in use.
*   **Parametric:** I'd like to adjust the dimensions based on the size of the band. This should be based on the dimensions of the wristband, so the band's size parameters determine the box's size parameters.

**OpenSCAD:**

*   I need this to be done in OpenSCAD.
*   I am going to need you to include the code for the hinges and for all other objects. I don't need to use the BOSL or BOLTS libraries for this, but if there are standard hinge libraries please use those, unless they require BOSL or BOLTS. Please do not use MCAD.
*   I'd like the final design to have options to output the assembled band, the band itself, and the box parts, separately or together. I'm thinking of a simple `part` variable at the top to control this.

Can you provide me with the necessary OpenSCAD code, that addresses each point above?

[Assistant]
FitBit8.scad:
```
// Replacement band for Fitbit Flex.
//
// http://www.thingiverse.com/thing:205148
//
// (c) 2013,2014 Laird Popkin.

/* [Settings] */

// Part
part = 0; //[0:Assembled, 1:Band, 2:Box Bottom, 3:Box Top]
// Measurement around wrist (mm).
wristLenMM = 0;
wristLenIn = 7.25;

wristLength = wristLenMM + wristLenIn*24.5;
// Length of links
linkLen = 13; // [11:Tight, 12:Tight-ish, 13:Loose-ish, 14:Loose]

/* [Hidden] */
linkHeight=7;
pi=3.14159; // I could go on...
wristLen = wristLength + linkHeight*3.14159; // diameter of outside of band to allow for thickness
in=24.5;
len = 1.4*in+2;
width=8.5/16*in;
height=3/8*in;
echo(len,width,height);
r=2;
xoff=width/2-r;
yoff=height/2-r;
thick=.5;

flexScale=1.3;
flexLScale=1.105;

blockH=10;
angle=30; // angle of face
zoff = sin(30)*5;

outerWidth=width+4.6*thick;
outerLen = len-3;
outerHeight = height+thick;

hinge_dia = outerHeight * 1000;

hingeXscale = .8;
hingeXoff=0.7;

echo("wrist band length ",wristLen);

flexAngle = 88.7; //89.2;

numLinks = floor((wristLen-outerLen-outerWidth/2)/(linkLen*2));
linksLen = numLinks*linkLen;
echo("links ",numLinks," length ",linksLen);

gap = 0.8;

echo("size ",outerWidth,outerLen,outerHeight);

$fn=16;

module flex() {
	translate([0,0,-1]) difference() {
		translate([0,0,-zoff]) linear_extrude(scale=0.85,height=len) {
			square([width-2*r,height],center=true);
			square([width,height-2*r],center=true);

			translate([-xoff,-yoff,0]) circle(r=r);
			translate([-xoff,yoff,0]) circle(r=r);
			translate([xoff,-yoff,0]) circle(r=r);
			translate([xoff,yoff,0]) circle(r=r);
			}
		translate([0,0,-zoff]) rotate([30,0,0]) cube([2*width,2*height,5],center=true);
		}
	}

module male() {
	scale([1,1/2,1]) {
		translate([-outerWidth/8,0,0])
			cube([outerWidth/4,outerWidth/2,linkHeight]);
		translate([0,-gap,0]) cylinder(r=outerWidth/4, h=linkHeight);
		}
	}

module female() {
	scale([1,1/2,1]) difference() {
		translate([-outerWidth/2,-outerWidth/2-gap,0])
			cube([outerWidth,outerWidth,linkHeight]);
		translate([-outerWidth/8-gap,0,-1])
			cube([outerWidth/4+2*gap,outerWidth/2,linkHeight+2]);
		translate([0,0,-1]) cylinder(r=outerWidth/4+2*gap, h=linkHeight+2);
		}
	}

module FitBitBand() {
	//#translate([	outerWidth,0,0]) cube([1,wristLen,1],center=true);

	difference() {
		union() {
			// hull around Flex
			translate([0,len/2-zoff,height/2])
				rotate([flexAngle,0,0])
					scale([flexScale,flexScale,flexLScale]) flex();
			// Make 'head' thicker
			translate([0,outerLen*.43,height/2+thick/2]) cube([outerWidth,outerLen*.25,outerHeight],center=true); // around flex
			//block in middle of 'face'
			translate([0,-4,height/2+thick/2+outerHeight/4]) cube([outerWidth,outerLen*.2,outerHeight/2],center=true); // around flex
			//Make sides thicker
			translate([0,-4,height/2+thick/2])
				cube([outerWidth,outerLen,height-2*r],center=true); // around flex
			// links on both sides
			translate([0,0,outerHeight-linkHeight]) {
				for (link = [0:numLinks-1]) {
					assign (y=link*linkLen) {
//				for (y=[0:linkLen:wristLen/4+outerWidth/4]) {
					translate([hingeXoff,outerLen/2+y+linkLen/2,0]) scale([hingeXscale,1,1]) demo(linkHeight,gap/hingeXscale);
					translate([hingeXoff,-(outerLen/2+y+linkLen/2)-2,0]) scale([hingeXscale,1,1]) demo(linkHeight,gap/hingeXscale);
					}
				translate([0,-wristLen/2,0]) male();
				translate([0,wristLen/2,0]) female();
				}
				}
			}
		// carve out space for Flex
		translate([0,len/2-zoff-1,height/2]) rotate([flexAngle,0,0]) flex();
		// carve out hole on top to put Flex in
		translate([0,1,0]) cube([width,len-7,2*(r)],center=true);
		// carve out gap for pulling Flex out
		translate([0,len/2,.2]) cube([width*.75,6,2*(r+thick)], center=true);
		}

//	translate([hingeXoff,outerLen+1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);
//	translate([hingeXoff,-outerLen-1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);
//	translate([hingeXoff,1.75*outerLen+1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);
//	translate([hingeXoff,-1.75*outerLen-1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);
	//translate([hingeXoff,2.5*outerLen+1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);
	//translate([hingeXoff,-2.5*outerLen-1,0]) scale([hingeXscale,1,1]) demo(outerHeight,0.4/hingeXscale);

	// fill gaps between ends and links
	translate([0,0,linkHeight*.9]) difference() {
		cube([outerWidth,wristLen-outerWidth/2,linkHeight],center=true);
		cube([outerWidth/.9,outerLen+2*linksLen,linkHeight+2],center=true);
		echo("gap len ",((wristLen-outerWidth/2) - (outerLen+2*linksLen))/2);
		}
	}

//flex();

module band() {
difference() {
	translate([0,0,outerHeight]) rotate([180,0,90]) FitBitBand();
	translate([0,0,-1]) cube([wristLen+10,outerWidth,2],center=true);
	if (part==0) rotate([90,0,0]) translate([0,0,4]) cube([wristLen+10,2*outerWidth,10],center=true);
	}
}

module boxBottom() {
	margin = 3;
	bw = outerWidth + 2*margin;
	bl = wristLen+10 + 2*margin;
	wall = 1;

	difference() {
		translate([0,0,outerHeight/2-wall-margin]) cube([bl,bw,outerHeight],center=true);
		translate([0,0,outerHeight/2-margin]) cube([bl-2*wall,bw-2*wall,outerHeight-wall],center=true);
		if (part==0) rotate([90,0,0]) translate([0,0,9]) cube([wristLen+20,3*outerWidth,20],center=true);
		}
	}

module boxTop() {
	margin = 3;
	wall = 1;
	bw = outerWidth + 2*margin + 3*wall;
	bl = wristLen+10 + 2*margin + 3*wall;

	difference() {
		translate([0,0,outerHeight/2+wall+margin]) cube([bl,bw,outerHeight],center=true);
		translate([0,0,outerHeight/2+margin]) cube([bl-2*wall,bw-2*wall,outerHeight-wall],center=true);
		if (part==0) rotate([90,0,0]) translate([0,0,9]) cube([wristLen+20,3*outerWidth,20],center=true);
		}
	}

if ((part==0)||(part==1)) band();
if ((part==0)||(part==2)) boxBottom();
if ((part==0)||(part==3)) boxTop();

//male();
//female();

/// HINGE

// What diameter or thickness should the hinge have (in 0.01 mm units)?
//hinge_dia = 500; // [1:5000]

// How much gap should be left between separate parts (in 0.01 mm units)?
//hinge_gap = 40; // [1:2000]

module hingepair() {
	union() {
		cylinder(h=0.25, r=0.5);
		translate([0,0,0.25]) cylinder(h=0.25, r1=0.5, r2=0.25);
		translate([0,0,1]) cylinder(h=0.25, r1=0.25, r2=0.5);
		translate([0,0,1.25]) cylinder(h=0.25, r=0.5);
	}
}

module hingecore(gap) {
	union() {
		difference() {
			union() {
				cylinder(h=1.5, r=0.5);
				translate([-0.5,0,0.25+gap])
					cube(size=[1,1,1-gap-gap]);
				//translate([0,-0.5,0.25+gap])
				//	cube(size=[0.5,0.5,1-gap-gap]);
			}
			translate([0,0,0.25+gap-0.5]) cylinder(h=0.75, r1=1, r2=0.25);
			translate([0,0,1-gap]) cylinder(h=0.75, r1=0.25, r2=1);
		}
		translate([-0.5,0.5+gap,0])
			cube(size=[1,0.5-gap,1.5]);
	}
}

module hingeedge(gap) {
	union() {
		hingepair();
		translate([-0.5,-1,0])
			cube(size=[1,0.5-gap,1.5]);
		translate([-0.5,-1,0])
			cube(size=[1,1,0.25]);
		translate([-0.5,-1,1.25])
			cube(size=[1,1,0.25]);
		//translate([0,0,1.25])
		//	cube(size=[0.5,0.5,0.25]);
		//translate([0,0,0])
			//cube(size=[0.5,0.5,0.25]);
	}
}

module hinge(thick, realgap) {
	hingeedge(realgap / thick);
	hingecore(realgap / thick);
}

module demo(t, rg) { // modified to make only two hinges
	scale([t,t,t])
	translate([-2.75,0,0.5])
	rotate(a=[0,90,0])
	union() {
		//hinge(t, rg);
		translate([0,0,1.25]) hinge(t, rg);
		translate([0,0,2.5]) hinge(t, rg);
		//translate([0,0,3.75]) hinge(t, rg);
		//translate([-.5,1,1.25]) cube(size=[1,1,5.25/2+.1]);
		//translate([-0.5,-2,1.25]) cube(size=[1,1,5.25/2+.1]);
	}
}
```


[User]
Hi there! I'm trying to design some snap-together tiles to make polyhedra. I really like the design from mathgrrl's Poly-Snaps, and I'd love to create my own version with some tweaks.

I need a parametric OpenSCAD file (or files, if it makes sense to split things up), and here are the basic things I want:

**Core Shape:**

*   The tiles will be regular polygons, and I want to be able to set the number of sides. I'd like to support anything from a triangle up to a dodecagon (3 to 12 sides).
*   I need to control the length of each side of the polygon.
*   I need to control the thickness of the tile.
*   There should be a border around the edge of the tile (essentially, a smaller polygon subtracted from the larger polygon), and I need to be able to set the border's thickness.

**Snaps:**

*   Each side of the polygon needs to have the same number of snaps. I need to be able to choose how many snaps are on each side (from 2 up to 8).
*   I need to be able to add a small amount of clearance between the snaps (both in length and width) for a better fit - this should be a parameter I can change.
*  Also, I'd like to be able to add a bit of extra length to the snap's 'tongue' portion.

**Key Calculations & Constraints:**

*   The radius of the polygon should be calculated based on the side length.
*  The inside radius (for the hole in the middle of the tile) needs to be based on the outside radius and the border thickness.
* The width of each snap needs to be derived from the radius and the number of snaps.

**Important note:** I do not want to use any external libraries for this design like MCAD, BOSL, etc.

Could you create a parametric OpenSCAD file (or files) that handles these requirements? The code provided above is a good reference point, but I would prefer that you generate your own from scratch. Thanks a lot!

[Assistant]
mathgrrl_polysnap_customizer.scad:
```
// mathgrrl polysnap tiles

// AS SUBMITTED TO THINGIVERSE CUSTOMIZER - DO NOT MODIFY THIS COPY

//////////////////////////////////////////////////////////////////////////
// PARAMETERS ////////////////////////////////////////////////////////////

/* [Shape] */

// Choose the number of sides for the tile
sides = 5; // [3,4,5,6,7,8,9,10,11,12]

// Choose the number of snaps on each side
snaps = 3; // [2,3,4,5,6,7,8]

/* [Size] */

// Set the length of each side, in mm
side_length = 25;

// Set the thickness of the tile, in mm
thickness = 3.5;

// Set the border thickness, in mm
border = 3.5;

/* [Adjust Fit] */

// Add extra space between snaps, in mm
clearance = .17;

// Add extra length to the snaps, in mm
lengthen = .3;

//radius depends on side length
radius = side_length/(2*sin(180/sides));

//inside radius depends on the border thickness
inside = radius-border/(cos(180/sides));

//width of each snap depends on number of snaps
snapwidth = radius*sin(180/sides)/snaps;

//////////////////////////////////////////////////////////////////////////
// RENDERS ///////////////////////////////////////////////////////////////

union(){
	//make the polygon base
	poly_maker();

	//make the snaps
	snap_maker();
}

//////////////////////////////////////////////////////////////////////////
// MODULES ///////////////////////////////////////////////////////////////

//build the polygon shape of the tile
//shape is made up of n=sides wedges that are rotated around
module poly_maker(){

	//subtract the smaller polygon from the larger polygon
	difference(){

		//extrude to thicken the polygon
		linear_extrude(height=thickness,center=true){

			//rotate the wedge n=sides times at angle of 360/n each time
			for(i=[0:sides]){

				//rotation is around the z-axis [0,0,1]
				rotate(i*360/sides,[0,0,1])

					//make triangular wedge with angle based on number of sides
					polygon(

						//the three vertices of the triangle
						points =	[[0-.1,0-.1], //tweaks fix CGAL errors
									 [radius,0-.01],
									 [radius*cos(360/sides)-.01,radius*sin(360/sides)+.01]],

						//the order to connect the three vertices above
						paths = [[0,1,2]]
					);
			}
		}
		//extrude to thicken the center polygon that will be the hole
		linear_extrude(height=thickness+2,center=true){

			//rotate the wedge n=sides times at angle of 360/n each time
			for(i=[0:sides]){

				//rotation is around the z-axis [0,0,1]
				rotate(i*360/sides,[0,0,1])

					//make triangular wedge with angle based on number of sides
					polygon(

						//the three vertices of the triangle
						points =	[[0-.2,0-.2], //tweaks fix CGAL errors
									 [inside,0-.01],
									 [inside*cos(360/sides)-.01,inside*sin(360/sides)+.01]],

						//the order to connect the three vertices above
						paths = [[0,1,2]]
					);
			}
		}
	}
}

//build the snaps around the tile
//try the commands alone with i=1 and i=2 to see how this works
//remember to read from the bottom to the top to make sense of this
module snap_maker(){

	//rotate the side of snaps n=sides times at angle of 360/n each time
	for(i=[0:sides]){

		//rotation is around the z-axis [0,0,1]
		rotate(i*360/sides,[0,0,1])

			//build snaps for first side at the origin and move into positions
			for(i=[0:snaps-1]){

				//read the rest of the commands from bottom to top
				//translate the snap to the first side
				translate([radius,0,-thickness/2])

					//rotate the snap to correct angle for first side
					rotate(180/sides)

						//for i^th snap translate 2*i snapwidths over from origin
						translate([0,2*i*snapwidth,0])

							//rounded box for snap made from a box and cylinder
							union(){

								//cube part of snap shape at the origin
								cube([thickness/2+lengthen,snapwidth-clearance,thickness]);

								//post at back of snap to avoid loose teeth
								//shifted a bit right to avoid overhangs when sides=3
								translate([-.5,.5,0])
									cube([thickness/2,snapwidth-clearance-.5,thickness]);

								//round part of snap shape at the origin
								//move cylinder to the end of the box
								translate([thickness/2+lengthen,snapwidth-clearance,thickness/2])

									//rotate cylinder to match box orientation
									rotate(90,[0,1,0])
										rotate(90,[1,0,0])

											//cylinder of the correct size to match box
											cylinder(
												r=thickness/2,
												h=snapwidth-clearance,
												$fn=16  //number of sides
											);
							}
			}
	}
}

```


[User] I'm looking to make a 3D printable model, and I've already got the basic shape in an STL file called "shape.stl". What I need now is an OpenSCAD file that imports this STL and then generates a second object. This second object should be a box, and it needs to surround the imported shape with a 5mm gap on all sides. I want the box to be solid, not just a shell. So basically, a rectangular prism that perfectly encloses "shape.stl" with a 5mm air gap between the two objects. Can you generate that for me?

[Assistant]
shape3.scad:
```
import("shape.stl");

```


[User]
I'm looking to design a 3D printable object, kind of like a sphere with holes through it. The base shape should be a sphere, and then I want to subtract three cylinders to create those holes.

Specifically, the sphere's diameter should be a parameter, let's call it `sphere_diameter`. The cylinders will all have the same radius and height, which should also be parameters, let's call them `cylinder_radius` and `cylinder_height`. The cylinders should pass through the center of the sphere. One cylinder should be oriented along the X axis, another along the Y axis, and the third along the Z axis.

So, I need a function that returns the radius given a diameter (it's just diameter/2), but then also a module that rotates a cylinder along each of these three axes to create the holes. Finally, I need the main module that takes the parameters and creates the sphere and then does the subtractions to create the final design.

Could you generate that in OpenSCAD? It doesn't need any libraries, just basic OpenSCAD functionality.

[Assistant]
example001.scad:
```

module example001()
{
	function r_from_dia(d) = d / 2;

	module rotcy(rot, r, h) {
		rotate(90, rot)
			cylinder(r = r, h = h, center = true);
	}

	difference() {
		sphere(r = r_from_dia(size));
		rotcy([0, 0, 0], cy_r, cy_h);
		rotcy([1, 0, 0], cy_r, cy_h);
		rotcy([0, 1, 0], cy_r, cy_h);
	}

	size = 50;
	hole = 25;

	cy_r = r_from_dia(hole);
	cy_h = r_from_dia(size * 2.5);
}

example001();

```


[User]
I'm looking to create a customizable fiber tool, kind of like a big button with a variable number of holes in it. I want to be able to specify the overall diameter and height of the button, as well as the number of holes it has (from 1 to 5). Each hole should be a cylinder going all the way through.

The holes themselves should also be customizable. I want to set a starting diameter and an ending diameter for the holes. When there's only one hole, it will be that starting diameter. When there are more holes, I want them to progressively increase in size, starting with hole_diameter_start for the first hole, and ending with hole_diameter_end for the last hole. The holes should be evenly spaced in a circular pattern around the center of the main cylinder.  The positioning of the holes should be adjustable using a 'hole_offset' parameter. The outer edge of the button should have a lip, too, with adjustable height (via lip_ratio) and edge (edge_ratio) parameters, relative to the original base diameter.

So, to recap, I'd like a parametric OpenSCAD file that lets me adjust these parameters:

*   `diameter`: The overall diameter of the button.
*   `height`: The height of the main button cylinder.
*   `number_of_holes`: The number of holes (1 to 5).
*   `hole_diameter_start`: The diameter of the first hole.
*   `hole_diameter_end`: The diameter of the last hole.
*   `hole_offset`:  How far from the center to place the holes.
*  `lip_ratio`: How far to extend the lip up.
* `edge_ratio`: How far to extend the diameter of the lip.

I don't think I'll need any fancy libraries for this, just the core OpenSCAD functions should be fine.

[Assistant]
diz.scad:
```
$fn = 64*1;

diameter = 50; //[25:75]
height = 4; //[4:7]
number_of_holes = 3; //[1:5]
hole_diameter_start = 5; //[5:20]
hole_diameter_end = 15; //[15:40]
hole_offset = 10; //[0:50]
lip_ratio = 70; //[0:100]
edge_ratio = 90; //[0:100]

main();

module main(){
	difference(){
		cylinder(h = height, r = diameter/2);
		if (number_of_holes == 1) {
			oneHole();
		} else if (number_of_holes == 2) {
			twoHoles();
		} else if (number_of_holes == 3) {
			threeHoles();
		} else if (number_of_holes == 4){
			fourHoles();
		} else {
			fiveHoles();
		}
		translate(v=[0,0,height*lip_ratio*.01])
		cylinder(h = 25, r = diameter/2*edge_ratio*.01);
	}
}

module oneHole() {
	cylinder(h=25, r = hole_diameter_start/2);
}

module twoHoles() {
	translate(v=[hole_offset, 0, 0])
	cylinder(h = 25, r = hole_diameter_start/2);
	translate(v=[-hole_offset, 0, 0])
	cylinder(h = 25, r = hole_diameter_end/2);
}

module threeHoles() {
	translate(v=[0, hole_offset, 0])
	cylinder(h = 25, r = hole_diameter_start/2);
	translate(v=[.87*hole_offset, -.5*hole_offset, 0])
	cylinder(h = 25, r = ( hole_diameter_end - hole_diameter_start )/2);
	translate(v=[-.87*hole_offset, -.5*hole_offset, 0])
	cylinder(h = 25, r = hole_diameter_end/2);
}

module fourHoles() {
	translate(v=[hole_offset, hole_offset, 0])
	cylinder(h = 25, r = hole_diameter_start/2);
	translate(v=[-hole_offset, hole_offset, 0])
	cylinder(h = 25, r = ( hole_diameter_end - hole_diameter_start )/6 + hole_diameter_start/2);
	translate(v=[hole_offset, -hole_offset, 0])
	cylinder(h = 25, r = ( hole_diameter_end - hole_diameter_start )/3 + hole_diameter_start/2);
	translate(v=[-hole_offset,-hole_offset,0])
	cylinder(h = 25, r = hole_diameter_end/2);
}

module fiveHoles() {
	translate(v=[0, hole_offset, 0])
	cylinder(h = 25, r = hole_diameter/2);
	translate(v=[hole_offset*.95, hole_offset*.31, 0])
	cylinder(h = 25, r =     ( hole_diameter_end - hole_diameter_start )/8 + hole_diameter_start/2);
	translate(v=[hole_offset*.59, -hole_offset*.81, 0])
	cylinder(h = 25, r =     ( hole_diameter_end - hole_diameter_start )/4 + hole_diameter_start/2);
	translate(v=[-hole_offset*.59,-hole_offset*.81,0])
	cylinder(h = 25, r = 3 * ( hole_diameter_end - hole_diameter_start )/8 + hole_diameter_start/2);
	translate(v=[-hole_offset*.95,hole_offset*.31,0])
	cylinder(h = 25, r = hole_diameter/2);
}

```


[User]
Okay, I'd like to design a customizable, "smashable" piggy bank in OpenSCAD. It should be designed such that it's easy to break open, but money can't be removed without breaking it. Think a very thin-walled container with some internal structure to prevent easy extraction.

Here are the key features and parameters I'd like:

*   **Overall Shape:** The basic shape should be a sort of diamond-like shape, created by intersecting a rotated cube with another rotated cube. The user should be able to toggle to round that shape so that it instead becomes an intersection of the diamond shape with a cylinder. I want a parameter to switch between these shapes.
*   **Size:** The user should be able to set the overall size of the bank (e.g., 50mm is small, 100mm is large). This should scale the entire design appropriately.
*   **Wall Thickness:** I need a parameter to set the wall thickness. The intent is to make it thin enough to break easily; perhaps something around 0.5mm to start.
*   **Inner Ribs:** The bank should have internal ribs to provide some structural support while still being easy to break open.
    *   The user should be able to set the depth of these ribs.
    *   There should be a setting for the width of the ribs.
    *   I'd like the ribs to follow the angles of the diamond shape.
    *   The user should be able to control the spacing of the ribs, or opt to have a single rib per side.
*   **Money Slot:**
    *   The length and width of the slot for inserting money should be configurable.
    *   There should be a lip around the money slot to prevent easy removal. This should also be configurable.
*   **Visualization:** I want a setting that, when enabled, allows the user to see inside of the model by slicing away some of it. This should be a toggle between a full bank, and one with a section removed to see internal structure. This mode should be off by default (for printing).
*   **Dependencies**: The design should use the `Write.scad` library for any needed text output.

Basically, it's a thin-walled container with internal ribs and a money slot that's intentionally difficult to get money out of without smashing it. I would like to be able to customize the main dimensions of the bank, the ribs, the money slot, and the shape. I'd like you to generate an OpenSCAD file (or files if appropriate) to accomplish this.

[Assistant]
seriousBank.scad:
```
// serious bank
//
// money goes in, but it doesn't come out. So you have to seriously want the money to smash
// the bank open.

use <write/Write.scad>;

// Rounded
round = 0; // [0:Cube, 1:Rounded]
// Size of bank (mm). 50mm is small, 100mm is large.
l=100;
// Wall thickness (mm). 0.5 makes walls one layer thick.
t=0.5;
// Inner rib size.
i=20;
// Width of inner ribs.
iw = 2;
// Money slot length
slotL = 45;
// Money slot width
slotW = 5;
// Thickness of lip around money slot.
slotLip = 2;
// Turn on to see into bank. Turn off to print.
slice = 0; //[0:Off, 1:On]

// Shape of bank
module bankShape(s) {
	echo("bank shape ",s);
	intersection() {
		difference () {
			rotate([0,55,0]) rotate([0,0,45]) cube(s, center=true);
			translate([s/10,0,0]) translate([0,0,-s]) cube(s, center=true);
			}
		if (round) cylinder(h=2*s,r=s*.7, center=true);
		}
	}

// Draw the bank
module bank() {
	// outer shell of bank
	difference() {
		color("yellow") union() {
			bankShape(l);
			// corner supports
			for (a=[0:120:359]) rotate([0,0,a]) {
				translate([0,-0.5,-l/2]) cube([l*0.7,t,l*.21]);
				// disk to hold corners down
				rotate([0,0,30]) translate([0,l*.7,-l/2]) cylinder(r=5, h=0.5);
				}
			}
		color("grey") bankShape(l-t*2);
		if (slice) cube(100);
		rotate([0,55,0]) rotate([0,0,0])
			translate([0,0,l/2])
				cube([slotL,slotW,l], center=true);
		}

	// inner ribs
	intersection() {
		bankShape(l);	// so ribs stay inside
		difference() {
			union() {
				for (a=[0:60:359]) rotate([0,0,a]) translate([0,-0.5,-l/2]) cube([l*0.81,t,l*1.5]);
				rotate([0,55,0]) rotate([0,0,0])
					translate([0,0,l/2-i/2])
						cube([slotL+2*slotLip,slotW+2*slotLip,i], center=true);
				}
			bankShape(l-i);
			rotate([0,55,0]) rotate([0,0,0])
				translate([0,0,l/2])
					cube([slotL,slotW,l], center=true);
			}
		}
	}

translate([0,0,l/2]) bank();
```
SeriousBank.scad:
```
// serious bank
//
// money goes in, but it doesn't come out. So you have to seriously want the money to smash
// the bank open.

use <write/Write.scad>;

// Rounded
round = 0; // [0:Cube, 1:Rounded]
// Size of bank (mm). 50mm is small, 100mm is large.
l=100;
// Wall thickness (mm). 0.5 makes walls one layer thick.
t=0.5;
// Inner rib size.
i=20;
// Width of inner ribs.
iw = 2;
// Money slot length
slotL = 45;
// Money slot width
slotW = 5;
// Thickness of lip around money slot.
slotLip = 2;
// Rib Spacing. 0 means one rib per side.
ribSpacing = 3.5;
// Turn on to see into bank. Turn off to print.
slice = 0; //[0:Whole, 1:Hole]

// Shape of bank
module bankShape(s) {
	echo("bank shape ",s);
	intersection() {
		difference () {
			rotate([0,55,0]) rotate([0,0,45]) cube(s, center=true);
			translate([s/10,0,0]) translate([0,0,-s]) cube(s, center=true);
			}
		if (round) cylinder(h=2*s,r=s*.7, center=true);
		}
	}

// Draw the bank
module bank() {
	// outer shell of bank
	difference() {
		color("yellow") union() {
			bankShape(l);
			// corner supports
			for (a=[0:120:359]) rotate([0,0,a]) {
				translate([0,-0.5,-l/2]) cube([l*0.7,t,l*.21]);
				// disk to hold corners down
				rotate([0,0,30]) translate([0,l*.7,-l/2]) cylinder(r=5, h=0.5);
				}
			}
		color("grey") bankShape(l-t*2);
		if (slice) cube(100);
		rotate([0,55,0]) rotate([0,0,0])
			translate([0,0,l/2])
				cube([slotL,slotW,l], center=true);
		}

	// inner ribs
	intersection() {
		bankShape(l);	// so ribs stay inside
		difference() {
			union() {
				for (a=[0:60:359]) rotate([0,0,a]) {
					for (offset = [-ribSpacing:ribSpacing:ribSpacing]) {
						translate([0,offset-t/2,-l/2]) cube([l*0.81,t,l*1.5]);
						}
					}
				rotate([0,55,0]) rotate([0,0,0])
					translate([0,0,l/2-i/2])
						cube([slotL+2*slotLip+.1,slotW+2*slotLip+.1,i], center=true);
				}
			bankShape(l-i);
			rotate([0,55,0]) rotate([0,0,0])
				translate([0,0,l/2])
					cube([slotL,slotW,l], center=true);
			}
		}
	}

translate([0,0,l/2]) bank();
```


[User]
Hey, I'm looking to design a custom remote control holder and I'd love some help with the OpenSCAD code. Basically, it's going to be a box-like structure with compartments for remotes, and I want to be able to adjust the number of rows, how many remotes each row holds, and the overall height of the holder, with taller rows for remotes on the back.

Here's a breakdown of what I'm thinking:

**Overall Structure:**
*   It'll have a base, vertical walls to form the compartments, and the whole thing will be like a stepped structure, with each row getting a bit taller than the last.
*   I need the ability to set the smallest height of the front-most row and then the tallest for the back-most row. The intermediate rows should scale appropriately between those two heights.
*   The walls that separate the remotes horizontally will be the same height as the front-most row of remotes.

**Key Parameters:**
*   `smallest_height`: The height of the front-most row.
*   `tallest_height`: The height of the back-most row.
*   `num_rows`: How many rows of remotes there will be, and thus how many height "steps".
*   `compartment_width`: The width of each compartment where a remote sits.
*   `compartment_depth`: The depth of each compartment
*    `remotes_per_row`: The number of remote compartments in each row
*    `wall_thickness`: The thickness of the walls separating the remotes and making up the structure.
*   `front_text`: Text to be written on the front face of the holder.
*   `font_size`: Size of the text
*   `font_spacing`: Spacing between the characters in the text.

**Features:**
*   It needs a text label on the front - probably something simple like "TV Remotes". Let's try and center it both vertically and horizontally for the front wall of the holder.
*   I want this whole structure to be buildable by just making it out of cubes.

**Libraries:**

* I'll need to use the `write/Write.scad` library for writing text.

Could you generate the OpenSCAD code for this, please?

[Assistant]
remotecaddy.scad:
```
include <write/Write.scad>

/* [Config] */
smallest_height=45;
tallest_height=110;

num_rows=3;

compartment_width=59;
compartment_depth=30;
remotes_per_row=3;

/* [Advanced] */
wall_thickness=2;
front_text="TV TIME !";
font_size=12;
font_spacing=2;
//TODO: mouse ears

/* [Hidden] */
height_increase_per_row=(tallest_height-smallest_height)/num_rows;
total_width=remotes_per_row*compartment_width+(remotes_per_row+1)*wall_thickness;
total_depth=num_rows*compartment_depth+(num_rows+1)*wall_thickness;

//floor
cube([total_width,total_depth,wall_thickness]);

//x walls
for ( i = [0:num_rows]){
	translate([0,i*(compartment_depth+wall_thickness),0])cube([total_width,wall_thickness,smallest_height+i*height_increase_per_row]);

}
   writecube(front_text,[total_width/2,0,smallest_height/2],[total_width,wall_thickness,smallest_height],face="front",h=font_size,space=font_spacing);

//y walls
for ( i = [0:remotes_per_row]){
 translate([i*(compartment_width+wall_thickness),0,0])cube([wall_thickness,total_depth,smallest_height]);
}

```


[User]
Hey, I'm looking to design a customizable card holder, sort of like a minimalist wallet. I'd like it to have space for a few standard-sized credit cards held together by rubber bands. I'd also like to be able to embed some text – my name and contact info – on the surface of the wallet.

Here are the specifics:

**General Shape & Size:**
*   It should be rectangular, just slightly larger than a standard credit card to allow for some wiggle room and a small margin. Let's say a credit card is 85.60mm x 53.98mm, so maybe the holder itself should be around 90.60mm x 58.98mm, adding 5mm to each dimension.
*   The thickness of the wallet itself should be 1.5mm.

**Band Grooves and Notches:**
*   There should be grooves on the short sides of the wallet, to hold the bands in place. These grooves should be around 10mm tall, and about 1.5mm wider than the main body of the wallet, so the bands can wrap around the ends of the wallet.
*   On one of the long edges, I'd like a semi-circular notch to make it easier to push the cards out. Maybe a radius of 10mm and a depth of about 7.5mm into the rectangle.
*   I want raised areas to help guide the rubber bands and keep them on the surface. These should be 0.5mm tall, centered on the long edges.

**Hubs:**
*   I'd like hubs on each side of the wallet, also on the long edge. These will make sure the bands don't slide off. The hubs should have a cylindrical base with radius of 5mm and have a total height of 2mm, with an angled section going up to a wider radius of 7mm. They should be on the top of the rectangle.

**Customizable Text:**
*   I'd like to be able to specify 3 lines of text for the front of the wallet (name, email, phone) and 3 lines for the back (return instructions and address). The front should be printed in a larger font. All of this text should be embedded into the top of the main rectangle, with text oriented correctly on each side.

**Parameters:**
*   I want to be able to easily adjust things like the margin around the card, the thickness of the wallet, the hub radius and height, the band height, and the various lines of text I want on the front and back.

**Libraries:**
*   I'll need to use the `write/Write.scad` library for the text embedding.

I think that covers it. Can you generate the OpenSCAD files to do this?

[Assistant]
CustomBandWallet.scad:
```
// Customizable Card Holder

// Inspired by http://www.thingiverse.com/thing:50752. But reimplemented
// to be customizable (AKA parametric) so contactinfo can be embedded into the wallet.

// All code (c) Laird Popkin, 2013.

use <write/Write.scad>;

/* [Personalize] */

// Name (this line is larger)
FL1 = "Your Name";
// line 2
FL2 = "email: name@domain.com";
// Line 3
FL3 = "cell: 999/999-9999";
// Back line 1
BL1 = "If Found, Please Mail to:";
// Line 2
BL2 = "1 Awesome Street";
// Line 3
BL3 = "Cooltown, FL 33067";
// Edge margins
margin = 5;
// Wallet thickness (mm)
thickness = 1.5;
// Hub radius
hubR = 5;
// Hub height
hubH = 2;
// Band Height
bandH = 10;

/* [Hidden] */
// Card dimensions
cardLen = 85.60 + margin;
cardWidth = 53.98 + margin;
gap = 0.01; // to avoid parallel faces
echo(cardLen, cardWidth, gap, margin);
notchR = 10;
notchDepth = margin*1.5;
hubY=cardWidth/2-hubR-bandH/2;

// shape of wallet faces
module shape() {
	difference() {
		cube([cardLen, cardWidth, thickness]);
		// cut out notches on the ends for the bands
		translate([0,cardWidth/2,thickness/2-1])
			cube(size=[margin+gap,bandH,3+thickness], center=true);
		translate([cardLen,cardWidth/2,thickness/2-1])
			cube(size=[margin+gap,bandH,3+thickness], center=true);
		// cut out notch at bottom for pushing cards out
		translate([(cardLen-2*bandH)/4,-notchR+notchDepth, -1])
			cylinder(r=notchR, h=thickness+2);
		// band guides
		translate([cardLen/2, cardWidth/2, thickness])
			cube([cardLen,bandH,0.5], center=true);
		translate([cardLen/2+hubR+bandH/2,
				cardWidth/4-gap-hubR/2,thickness])
			cube([bandH,cardWidth/2-hubR+1,0.5], center=true);
		translate([cardLen/2-hubR-bandH/2,
				cardWidth/4-gap-hubR/2,thickness])
			cube([bandH,cardWidth/2-hubR+1,0.5], center=true);
		}
	translate([cardLen/2,hubY,thickness-gap])
		cylinder(r1=hubR, r2=hubR+hubH, h=hubH); // 45 degree angle out
	}

// write text onto wallet
module face(line1, line2, line3, scale, mirror) {
	shape();
	color("black") {
		translate([cardLen/2,cardWidth*.9,thickness]) mirror([mirror,0,0])
			scale([scale,scale,scale]) write(line1, center=true);
		translate([cardLen/2,cardWidth*.75,thickness]) mirror([mirror,0,0])
			write(line2, center=true);
		translate([cardLen/2,cardWidth*.65,thickness]) mirror([mirror,0,0])
			write(line3, center=true);
		}
	}

translate([0,5,0]) {
	face(FL1, FL2, FL3, 2, 0);
	}
mirror([0,1,0]) translate([0,5,0]) face(BL1, BL2, BL3, 1, 1);
```


[User]
I'd like to create a customizable scoop with a cone-shaped body and a rounded handle. I've got some specific dimensions in mind, and I'd like to be able to easily change them later.

Here's what I'm thinking:

The scoop itself should have a base cylinder which transitions into a dome. I'd like to control the radius and height of the cylinder, the radius of the dome, and the overall thickness of the scoop walls.

The handle should be attached to the side of the cylinder, and I want to be able to define its length, width, and height. Also, I want it to be rounded, like a half-pipe. I'd like to have the option of including a hole running through the handle.

I'm thinking I'll use a Minkowski sum to create the rounded handle, and I'll need to adjust the resolution of that separately from the main body. So, I'd like to be able to specify both the "cup" resolution and a "bullnose" resolution for the Minkowski sum.

Here are the specific parameters I'd like to be able to control:

*   `cone_height`: Height of the cone part of the scoop.
*   `rim_height`: Height of the cylindrical base of the scoop.
*   `rim_radius`: Radius of the cylindrical base of the scoop.
*   `dome_radius`: Radius of the dome at the top of the scoop.
*  `thickness`: Thickness of the scoop walls.
*  `handle_height`: Height of the handle.
*   `handle_width`: Width of the handle.
*   `handle_length`: Length of the handle.
*  `handle_radius`: Radius used to create the rounded handle.
*   `hole`: Boolean option to include a hole in the handle (true/false).
*   `hole_radius`: Radius of the hole in the handle.
*   `cup_resolution`: Resolution for the scoop's body.
*   `bullnose_resolution`: Resolution for the minkowski sum used to create the handle.

I think that covers it! Could you generate the necessary SCAD file(s) for me? I don't need any external libraries.

[Assistant]
scoop.scad:
```
cone_height = 21;
rim_height = 21;
rim_radius = 21;
dome_radius = 9;
thickness = 2;
cone_height = 14;
handle_height = 1.75;
handle_width = 9;
handle_length = 130;
handle_radius = 1.2;
hole = "yes"; // [yes,no]
hole_radius = 3.95;
cup_resolution = 90;
bullnose_resolution = 12; // [8:14]
         /* applies to minkowski input only.
            anything above 16 chokes openscad.
            customizer engine seems way faster,
            but still can't handle higher numbers.
            odd numbers bad?  */

  module halfcircle(r) {   // these two modules are to try to speed up the minkowski
    difference() {
      circle(r);
      translate([-r,0])square([r*2,r]);    }  }

  module sphere_alternate(r) {   /* Thanks to Giles Bathgate:
                  http://forum.openscad.org/Minkowski-sum-slowness-tp929p930.html  */
    rotate_extrude()
      rotate([0,0,90])halfcircle(r);  }

module handle_blank (w,l,h,o) {  // build base handle for bullnosing with minkowski sum
 difference (){
  union () {
   cube ([w,l,h]);
   translate ([w/2,l,0])
    cylinder (r=w/2, h=h);
           }
  if (hole=="yes") {
   translate ([w/2,l,0])
    cylinder (r=o, h=h);  } } }

$fn=bullnose_resolution;

translate ([handle_length/2,0,0])   // position for printing
rotate ([0,0,90])

difference () {
 union () {
  hull() {
   cylinder (r=rim_radius, h=rim_height, $fn=cup_resolution);
   translate ([0,0,rim_height+cone_height])
   sphere (r=dome_radius, $fn=cup_resolution);
         }
  translate ([-handle_width/2, rim_radius-thickness, handle_radius])
   minkowski (){         // still takes forever on local machine.
    handle_blank (handle_width, handle_length, handle_height, hole_radius);
    sphere_alternate (handle_radius);
               }
           }
 hull() {
  cylinder (r=rim_radius-thickness, h=rim_height, $fn=cup_resolution);
  translate ([0,0,rim_height+cone_height])
   sphere (r=dome_radius-thickness, $fn=cup_resolution);
        }
              }

```


[User]
Hey, I'm looking to create a parametric bridge test structure in OpenSCAD. I've got some specific requirements and would like the design to be flexible for different printer settings.

The basic bridge should be a rectangular shape with a specified width, length, and thickness, and be raised off the build plate.  I need to be able to control the following parameters:

*   `bridge_width`: The overall width of the bridge.
*   `bridge_length`: The overall length of the bridge.
*   `bridge_height`: The height of the bridge above the build plate.
*   `bridge_thickness`: The thickness of the bridge itself.
*   `extrusion_width`: This should match my 3D printer's extrusion width.
*   `layer_height`: And this should match my layer height.

The bridge needs to have supports on both sides.  These supports should be angled, and the angle should be calculated dynamically, based on the bridge's overall height (bridge_height + bridge_thickness) and the support's length. The support's length should be half of the bridge's width.

I'd like to be able to add a small brim around the support. This brim should be generated using a Minkowski sum with a cylinder. The brim should be slightly smaller than the support on the X and Y axis using a scale function. This will make sure it doesn't extend out too far.

Additionally, I'd like to use a module to print text onto the top of the bridge. I would like to specify the following:

*   The `text` to write, such as "BRIDGE".
*   The `font` to use. I'd like to use the "orbitron.dxf" font.
*   The thickness of the text, which should be a multiple of my layer_height.
*    The height of the text. I'd like to specify that as well.

Can you create an OpenSCAD file that handles all of this? I'd like to have two primary modules `Support` and `bridge`. I will need to use the `write` library for generating the text. I think that's all I need. Let me know if you need any more information.

[Assistant]
Bridge.scad:
```
use <write/Write.scad>

//Parametric bridge
/* [Global] */
bridge_width=10;//width of bridge
bridge_length=50;//length of bridge
bridge_height=3;//height off  build plate
bridge_thickness=.6;//thickness of bridge

/*[Simple]*/

/* [User] */
extrusion_width=.55;//extrusion width set in slicing program. Normally nozzle*1.1
layer_height=.2;//layer height in slicing program

/* [Hidden] */
actual_width=bridge_width-bridge_width%extrusion_width;
support_length=actual_width*.5;
total_height=bridge_height+bridge_thickness;
support_radius=3;
angle=90-atan(total_height/(support_length*.6));

//Bridge Modules
module Support()
{
	color("blue")
	difference()
		{
			 translate([0,0,total_height/2])cube([support_length,actual_width,total_height],center=true);//create cube support
			 translate([-support_length/2,+actual_width,0])rotate([0,-angle,180]) cube([support_length,actual_width*2,bridge_height*10]);//cut cube support at angle
		}
	//brim
	color("yellow") scale([.8,.8,1])
	minkowski()
	{
	translate([0,0,layer_height/2]) cube([support_length,actual_width,layer_height/2],center=true);
	cylinder(r=support_radius,h=layer_height/2,$fs=1);
	}
}

module bridge()
{
	union()
	{
		color("yellow") translate([0,0,bridge_height+bridge_thickness/2]) cube([bridge_length*1.01,actual_width,bridge_thickness],center=true);
		color("blue") writecube("BRIDGE",[0,0,bridge_height+bridge_thickness/2],[bridge_length*1.01,actual_width,bridge_thickness], face="top",font = "write/orbitron.dxf",t=layer_height*4,h=actual_width*.9);
	}
}

//Build
translate([-bridge_length/2-support_length/2,0,0]) Support();
translate([bridge_length/2+support_length/2,0,0]) rotate([0,0,180])Support();
bridge();

```


[User]
I'd like a parametric test tube rack generator. I need to be able to specify the number of tubes in a row, the number of rows, the diameter of the tube holes, the material thickness, and the overall height of the rack and the height of the middle section. I'd also like to be able to choose between generating a 2D DXF file for laser cutting or a 3D STL file for 3D printing.

For the design, I'm thinking of a layered approach with a bottom plate, a top plate with holes for the tubes, and a middle plate with the same outline as the top and bottom plates but with cutouts for the *sides* of the tubes and not through-holes like the top plate. The sides would connect to these plates and the sides should also have cutouts to accommodate the tubes.

I would like the code to use OpenSCAD with built in functions and not require the inclusion of any libraries.

[Assistant]
Customizable_tube_rack.scad:
```
//Customizable test tube rack
//by Iron Momo

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

/* [Basic] */

//Number of tubes
nb_tubes = 5; //[1:20]
//Number of rows
nb_rows = 1; //[1:10]

//Tubes diameter (mm)
hole_diameter = 20;

//Material thickness (mm)
thickness = 5; //[3,4,5,10]

//Total height (mm)
height1 = 80;
//Middle height (mm)
height2 = 20;

output_type = "STL"; //[DXF,STL]

/* [Hidden] */
inter=10;
width1 = nb_tubes*hole_diameter + (nb_tubes+1)*inter;
width2 = nb_tubes*hole_diameter + (nb_tubes+1)*inter+2*thickness;
depth1= nb_rows*hole_diameter+nb_rows*inter;
depth2= nb_rows*hole_diameter+nb_rows*inter+2*thickness;

if(output_type=="STL")
{linear_extrude(height = thickness, center = false) rack_creation();
}

if(output_type=="DXF")
{rack_creation();}

module rack_creation()
{
bottom();
translate([0,depth2+5,0]) middle();
translate([0,2*depth2+10,0]) top();
translate([0,-height2-15,0])side1();
translate([0,-2*height2-30,0])side1();
translate([-5,-2*height2-30,0])rotate([0,0,90])side2();
translate([-5,height1-2*height2,0])rotate([0,0,90])side2();

}

module bottom()
{
difference()
{
	square([width2,depth2]);
	for (i = [1:nb_tubes])
		{
			translate([thickness+i*inter+(i-1)*hole_diameter,0,0]) square([hole_diameter,thickness]);

			translate([thickness+i*inter+(i-1)*hole_diameter,depth1+thickness,0]) square([hole_diameter,thickness]);
		}

	translate([0,depth2/5,0]) square([thickness,depth2/5]);
	translate([0,3*depth2/5,0]) square([thickness,depth2/5]);

	translate([width1+thickness,depth2/5,0]) square([thickness,depth2/5]);
	translate([width1+thickness,3*depth2/5,0]) square([thickness,depth2/5]);
}
}

module top()
{
difference()
{
	square([width2,depth2]);
	for (i=[0:nb_rows-1])
		{
			for (j = [1:nb_tubes])
				{
					translate([thickness+j*inter+(j-1)*hole_diameter+hole_diameter/2,thickness+inter/2+hole_diameter/2+i*(hole_diameter+inter),0]) circle(hole_diameter/2);
				}
		}

	translate([0,depth2/5,0]) square([thickness,depth2/5]);
	translate([0,3*(depth2/5),0]) square([thickness,depth2/5]);

	translate([width1+thickness,depth2/5,0]) square([thickness,depth2/5]);
	translate([width1+thickness,3*(depth2/5),0]) square([thickness,depth2/5]);
}
}

module middle()
{
difference()
{
top();
for (i = [1:nb_tubes])
	{
		translate([thickness+i*inter+(i-1)*hole_diameter,0,0]) square([hole_diameter,thickness]);

		translate([thickness+i*inter+(i-1)*hole_diameter,depth1+thickness,0]) square([hole_diameter,thickness]);
	}
}
}

module side1()
{
difference()
{
	translate([0,thickness,0]) square([width2,height2]);

	translate([0,thickness+height2/3,0]) square([thickness,height2/3]);
	translate([width1+thickness,thickness+height2/3,0]) square([thickness,height2/3]);
}
for (i = [1:nb_tubes])
	{
		translate([thickness+i*inter+(i-1)*hole_diameter,0,0]) square([hole_diameter,thickness]);

		translate([thickness+i*inter+(i-1)*hole_diameter,height2+thickness,0]) square([hole_diameter,thickness]);
	}
}

module side2()
{
difference()
{
	//Forme de base
	translate([thickness,0,0]) square([height1,depth2]);

	//Trous middle
	translate([height2+thickness,0,0]) square([thickness,depth2/5]);
	translate([height2+thickness,4*depth2/5,0]) square([thickness,depth2/5]);
	translate([height2+thickness,2*depth2/5,0]) square([thickness,depth2/5]);

	//Trous side1
	translate([thickness,0,0]) square([height2/3,thickness]);
	translate([thickness,depth1+thickness,0]) square([height2/3,thickness]);
	translate([thickness+2*height2/3,0,0]) square([height2/3,thickness]);
	translate([thickness+2*height2/3,depth1+thickness,0]) square([height2/3,thickness]);

}

//Ajout bottom
translate([0,depth2/5,0]) square([thickness,depth2/5]);
translate([0,3*(depth2/5),0]) square([thickness,depth2/5]);

//Ajout top
translate([height1+thickness,depth2/5,0]) square([thickness,depth2/5]);
translate([height1+thickness,3*(depth2/5),0]) square([thickness,depth2/5]);

}

```


[User]
I'd like to get a customizable planter designed, please. It should be a single print piece, so the saucer is integrated into the design, not a separate part. I want to be able to adjust the overall height of the planter, the diameter, and the wall thickness. Also, I want the planter to be able to be either round or have a set number of sides. The saucer height should be configurable as well, with options for small, medium, or large heights.

It's also important to have drainage holes at the bottom, not just a flat base. The holes should be spaced evenly and their size should be tied to the planter's dimensions so they look proportional to the pot.

I think I'd like to use the `write.scad` library, please.

Could you generate the necessary OpenSCAD files for this? Thanks.

[Assistant]
planter1.scad:
```
use <write.scad>

//(mm)
Height = 55;

// (mm)
Diameter = 70;

// (mm)
WallThickness = 2;

// Make a round pot?
RoundPlanter = "No"; // [Yes, No]

//If not round then how many sides?
PlanterSides = 5;

// Pick from one of the three sizes.
SaucerHeight = "Large"; // [Small, Medium, Large]

roundRes = 300 * 1;
userRes = 10 * 1;
/* error checking */
h4 = Height == 0 ? 20 : abs(Height);
radius = Diameter == 0 ? 20 : abs(Diameter / 2);
wT = WallThickness == 0 ? 2 : abs(WallThickness);
resHack = RoundPlanter == "Yes" ? roundRes : PlanterSides;
res = resHack == 0 ? 4 : abs(resHack);

sHeight_Hold = SaucerHeight == "Small" ? 0.1 : 0.15;
sHeight = SaucerHeight == "Large" ? 0.2 : sHeight_Hold;

offset = 3 * 1;
baseR = 10 * 1;

h2 = (h4 * sHeight) + wT;
h3 = h2 + (offset * 0.5) + wT;
h1 = h3 - offset - wT;
r1 = radius - offset - wT;

maxRes = 16 * 1;

faceOS = 0.01 * 1;
faceOS2 = faceOS * 2;
drainH_Hold = (h1 - 2) * 1.414;

drainH = drainH_Hold < 5 ? 5 : drainH_Hold;

iCount= res<=maxRes ? res : 4;

union(){
base();
taper();
top();
drain();
}

module drain(){
	difference(){
		cylinder(h = h1, r1 = r1, r2 = r1, $fn = res);

		translate([0,0,-faceOS])
			cylinder(h = h1 + faceOS2, r1 = r1 - wT, r2 = r1 - wT, $fn = res);

		for( i = [1:iCount]){
			rotate([90,0,(360/iCount) * (i + ((iCount - 2) % 4) * 0.25) ])
				translate([0,(-.707*drainH),0])
					rotate([0,0,45])
						cube([drainH,drainH,r1]);}
	}
}

module base(){
	difference(){
		cylinder(h = h2, r1 = radius, r2 = radius, $fn = res);

		translate([0,0,wT])
			cylinder(h = h2+.1, r1 = radius - wT, r2 = radius - wT, $fn = res);}
}

module top(){
	difference(){
		translate([0,0,h3])
			cylinder(h = h4 - h3, r1 = radius, r2 = radius, $fn = res);

		translate([0,0,h3-.1])
			cylinder(h = (h4 - h3) + 1.1, r1 = radius - wT, r2 = radius - wT, $fn = res);}
}

module taper(){
	translate([0,0,h1]) difference(){
		cylinder(h = h3 - h1, r1 = r1, r2 = radius,$fn = res);

		cylinder(h = h3 - h1, r1 = r1 - wT, r2 = radius - wT, $fn = res);
		translate([0,0,h3 - h1 - faceOS])
			cylinder(h = 1, r1 = radius - wT, r2 = radius - wT, $fn = res);
		translate([0,0,-faceOS])
			cylinder(h = faceOS2, r1 = r1 - wT, r2 = r1 - wT, $fn = res);}
}

```