[User]
Okay, I'd like to design a system of linked reminders, kind of like tags, that I can hang on my fridge or front door. I've already found a good base design that I want to build off of. The design I have is this 'Reminder' thing which creates a rectangular tag with a word on it and has a hook on the top and bottom. I'd like to be able to print a bunch of these and link them together.

Here's what I need:

**Base Design:** I'll be using the attached `Reminder.scad` file. It uses the `write/Write.scad` library, so make sure that's considered. This file creates a reminder tag with a customizable word, letter height, letter depth, hook diameters, and hook thicknesses. I want the core functionality to remain; the ability to create these tags with words on them and hooks at the top and bottom.

**Linking System:** The main thing I need is a way to easily link these tags together. Right now, the hooks are just "big_hook" objects with a simple cylinder and a small nub. Instead, I need a way to have a *male* and *female* connector for these hooks so I can link tags. Ideally the *male* connection will be a T-shape with a groove to slide into the female connection. The *female* connection should have a matching opening. I should be able to choose whether the top or bottom hook is male or female on each tag. Perhaps, a parameter for each tag would be 'top_hook_type' and 'bottom_hook_type', where each would be a dropdown selection between 'male' and 'female'.

**Customization:** I'd like to keep all the existing parameters from `Reminder.scad` such as `letter_height`, `letter_depth`, `top_hook_diameter`, `top_hook_thickness`, `bottom_hook_diameter`, `bottom_hook_thickness`, `reminder_text`, and all of the other parameters. It would be best if we kept those parameters, and added more parameters for 'top_hook_type' and 'bottom_hook_type', as stated above.

**Chain Creation:** I'd like the ability to define a series of reminders with their text and hook types, so I can generate a chain of connected tags as one object. For example, I would want to do something like:

```
reminders = [
	{text:"Laundry", top_hook_type:"male", bottom_hook_type:"female"},
	{text:"Grocery", top_hook_type:"female", bottom_hook_type:"male"},
	{text:"Dry Cleaning", top_hook_type:"female", bottom_hook_type:"male"}
];
```
And then there would be a module that takes this list and creates a vertically connected chain of tags using the correct male/female connectors on each tag.

**Output:** The output should be a single OpenSCAD file that can generate a chain of these reminder tags based on the parameters in the file and the list of reminders I've defined.

Essentially, I'm looking to extend my existing `Reminder.scad` file to support creating linked chains of reminders, while maintaining all current design and paramter functionality. Can you help me create this parametric OpenSCAD file?

[Assistant]
Reminder.scad:
```
// Title: Reminder
// Author: http://www.thingiverse.com/Jinja
// Date: 2/3/2013

use <write/Write.scad>

/////////// START OF PARAMETERS /////////////////

// The height of the letter. mm =
letter_height = 20; //[10:100]

// The depth of the letter. mm =
letter_depth = 2; //[2:100]

// The top hook inner diameter. mm =
top_hook_diameter = 15; //[8:80]

// The top hook thickness. mm =
top_hook_thickness = 3; //[2:20]

// The botton hook inner diameter. mm =
bottom_hook_diameter = 15; //[8:80]

// The bottom hook thickness. mm =
bottom_hook_thickness = 3; //[2:20]

// The bottom hook thickness. mm =
reminder_text = "Laundry";

// Choose which colour to output for single or dual extruders
extruder_colour = "SingleExtrude"; // [DoubleExtrude1,DoubleExtrude2,SingleExtrude]

// The depth of the hooks. mm =
hook_depth = 1; //[1:10]

// The depth of the border that holds the letters
border_depth = 1; //[1:10]

// The thickness of the border that holds the letters
border_fullness = 20; //[5:100]

/////////// END OF PARAMETERS /////////////////

$fa=5*1;
$fs=0.3*1;

if( extruder_colour == "SingleExtrude" )
{
	reminder( reminder_text, letter_height, top_hook_diameter, top_hook_thickness, bottom_hook_diameter, bottom_hook_thickness );
}
else if ( extruder_colour == "DoubleExtrude1" )
{
	reminder_back( reminder_text, letter_height, top_hook_diameter, top_hook_thickness, bottom_hook_diameter, bottom_hook_thickness );
}
else
{
	reminder_letters( reminder_text, letter_height, top_hook_diameter, top_hook_thickness, bottom_hook_diameter, bottom_hook_thickness );
}

//big_hook( 30, 5 );

//male_hook( 5, 4 );
//translate([10,0,0])
//female_hook( 5, 4 );

module male_hook( width, height )
{
	length = 10+height;
	difference()
	{
		cube([width, length, height]);
		translate([0, 5-1,0])
		difference()
		{
			cube([width, (length-5), height*0.5]);
			translate([0,(length-5), height*0.5])
			rotate([-135,0,0])
			cube([width, (length-5), height*0.5]);
		}
	}
}

module female_hook( width, height )
{
	length = 10+height;
	translate([width,0,0])
	rotate([0,0,180])
	{
	translate([-0.5,0,height])
	scale([(width+1)/width,1,-1])
	male_hook( width, height );
	translate([-1.5,0,0])
	cube( [1,length,height]);
	translate([width+0.5,0,0])
	cube( [1,length,height]);
	}
}

module big_hook( diam, thickness )
{
	radius = diam/2;
	rad2 = thickness*0.5;

	translate([0,radius+rad2+(radius+thickness)*0.5,0])
	{
		difference()
		{
			cylinder( hook_depth, radius+thickness, radius+thickness );
			translate([0,0,-1])
			cylinder( hook_depth+2, radius, radius );
			translate([-diam-thickness,-diam-thickness,-1])
			cube([diam+thickness,diam+thickness,hook_depth+2]);
		}

		translate([-radius-rad2,0,0])
		cylinder( hook_depth, rad2, rad2 );

		translate([0,-radius-rad2,0])
		cylinder( hook_depth, rad2, rad2 );

		translate([0,-radius-rad2-(radius+thickness)*0.25,hook_depth*0.5])
		cube([rad2*2,(radius+thickness)*0.5,hook_depth],true);
	}
}

module reminder( word, height, top_diam, top_width, botton_diam, bottom_width )
{
	length = len(word);
	spacing = 1.1;
	char_width=4.125*(height/6);
	char_space=0.666667*(height/6);
	char_height=height*1.086;
	border_width=char_width*0.15;
	border_width2=((char_height-border_width)*border_fullness)/200;
	border_height=border_depth;
	hook_width=5;
	tborder_width = ((length*char_width)-char_space)*spacing-border_width;
	tborder_height = char_height-border_width;
	middle = (tborder_width-hook_width+border_width)*0.5;

	translate([border_width*0.5,border_width*0.5,0])
	difference()
	{
		cube([tborder_width, tborder_height, border_height]);
		translate([border_width2,border_width2,-1])
		cube([tborder_width-(2*border_width2), tborder_height-2*border_width2, border_height+2]);
	}

	write(word,h=height,t=letter_depth,font="write/orbitron.dxf",space=spacing);

/*	translate([middle-char_width*0.6,tborder_height,0])
	male_hook( hook_width, 3 );
	translate([middle+char_width*0.6,tborder_height,0])
	male_hook( hook_width, 3 );

	translate([middle-char_width*0.6,border_width,0])
	female_hook( hook_width, 3 );
	translate([middle+char_width*0.6,border_width,0])
	female_hook( hook_width, 3 );
*/

	translate([middle,tborder_height,0])
	big_hook( top_diam, top_width );

	translate([middle,border_width,0])
	rotate([0,0,180])
	big_hook( botton_diam, bottom_width );

}

module reminder_back( word, height, top_diam, top_width, botton_diam, bottom_width )
{
	length = len(word);
	spacing = 1.1;
	char_width=4.125*(height/6);
	char_space=0.666667*(height/6);
	char_height=height*1.086;
	border_width=char_width*0.15;
	border_width2=((char_height-border_width)*border_fullness)/200;
	border_height=border_depth;
	hook_width=5;
	tborder_width = ((length*char_width)-char_space)*spacing-border_width;
	tborder_height = char_height-border_width;
	middle = (tborder_width-hook_width+border_width)*0.5;

	translate([border_width*0.5,border_width*0.5,0])
	difference()
	{
		cube([tborder_width, tborder_height, border_height]);
		translate([border_width2,border_width2,-1])
		cube([tborder_width-(2*border_width2), tborder_height-2*border_width2, border_height+2]);
	}

//	write(word,h=height,t=2,font="write/orbitron.dxf",space=spacing);

/*	translate([middle-char_width*0.6,tborder_height,0])
	male_hook( hook_width, 3 );
	translate([middle+char_width*0.6,tborder_height,0])
	male_hook( hook_width, 3 );

	translate([middle-char_width*0.6,border_width,0])
	female_hook( hook_width, 3 );
	translate([middle+char_width*0.6,border_width,0])
	female_hook( hook_width, 3 );
*/

	translate([middle,tborder_height,0])
	big_hook( top_diam, top_width );

	translate([middle,border_width,0])
	rotate([0,0,180])
	big_hook( botton_diam, bottom_width );

}

module reminder_letters( word, height, top_diam, top_width, botton_diam, bottom_width )
{
	spacing = 1.1;

	difference()
	{
		write(word,h=height,t=2,font="write/orbitron.dxf",space=spacing);
		reminder_back( word, height, top_diam, top_width, botton_diam, bottom_width );
	}
}

```


[User]
Okay, I'm looking to create a set of interlocking cylindrical containers with a twist-lock mechanism, similar to a pill bottle but more customizable. I want to be able to generate a base, a lid, and an optional separator that fits inside the base to create multiple compartments.

Here's what I need the design to be able to do, with parameters I can change:

**Overall Structure:**

*   **Part Selection:** I need to be able to generate either a "base", a "lid", or a "separator" independently using a variable.
*   **Interior Diameter:** The main parameter controlling the size of the container is the *inside* diameter.  I'd like to specify that as a variable.
*   **Interior Height:**  I also want to specify the *inside* height of the container.
*   **Exterior Style:** The outside of the container can be stylized with a variable. I want a few options here:
    *   "round": A simple cylinder.
    *   "round thin": A cylinder with a thin wall section near the base and lid, which may have to be a hull or some other technique to implement.
    *   "tapered":  A cylinder that tapers slightly from the base to the top.
    *   "polygon": A cylinder with a polygonal outer shape defined by a variable for the number of sides.
    *   "crown": A cylinder where the sides are convex or crown-shaped with a variable for the number of sides.
    *   "flipped crown":  The inverse of "crown," with concave edges.
*   **Polygon/Crown Sides:** If I choose the "polygon", "crown" or "flipped crown" styles, I'll need to set the number of sides as a parameter.
*   **Minimum Wall Thickness:**  I need a variable to set the minimum thickness of the container walls.
*   **Top/Bottom Thickness:**  I need a variable to control the thickness of the flat top of the lid and the flat bottom of the base.
*   **Lip Height:** The lip between the lid and base needs to be a variable.
*   **Bayonet Depth:** I need a variable for how much the bayonets protrude from the inner walls.
*  **Part Gap:**  I also need a variable for the gap between parts so that I can adjust how tightly the fit is.
*   **Resolution:**  I'd like to set the resolution using `$fn` for testing and high-res rendering. I should be able to chose from High, Medium, and Low using a variable, with the numbers 30, 60, and 120.

**Interlocking Mechanism:**

*   **Twist Angle:** The angle that the lid needs to be rotated to lock in place should be a fixed 60 degrees.
*   **Bayonet Angle:** The angular size of the bayonets should be fixed at 30 degrees.

**Additional Considerations**

*   The design should automatically calculate the exterior diameter, base height, lid height, and separator height based on the other parameters.
*   The separator should have a thinner inner wall to create multiple interior spaces within the base.
*   I'm using OpenSCAD, and I'm trying to keep the code clear and understandable with modules for each part, where feasible. I'm aware that `hull()` and `difference()` will likely be used here.
*   I'm using the `build_plate` module from the utils library.

Can you help me generate a parametric OpenSCAD file based on these parameters and rules?

[Assistant]
bayonet_container_v1-2.scad:
```
use <utils/build_plate.scad>

// type to produce
_part = "base"; // [base,lid,separator]

// minimum interior diameter of container
_insideDiameter = 16;

// height of the container's interior space
_interiorHeight = 16;

// exterior style of the part
_style = "round thin"; // [round, round thin, tapered, polygon, crown, flipped crown]

// for the polygon and crown styles (no effect on other styles)
_numberOfSides = 9;

// the thinnest walls of the container will use this value
_minimumWallThickness = 1.0;

// horizontal thickness used for the top of the lid or bottom of the base
_topBottomThickness = 1.0;

// height of the lip between lid and base
_lipHeight = 3.0;

// how much the locking bayonets protrude (larger values may be needed for larger diameters)
_bayonetDepth = 0.4;

// gap to place between moving parts to adjust how tightly the pieces fit together
_partGap = 0.08;

// use lower resolutions to adjust values, set to high for final rendering
_resolution = 60; // [30:Low, 60:Medium, 120:High]

////////////////////////////////////////////////////////////////////////

build_plate(0);
make();

module make($fn=_resolution) {
	twistAngle = 60; // amount of twist to close the lid
	bayonetAngle = 30; // angular size of the bayonets

	// override these to specify exterior dimensions instead of interior dimensions
	outsideDiameter = _insideDiameter + 2*(_minimumWallThickness*2 + _partGap + _bayonetDepth);
	baseHeight = _interiorHeight + _topBottomThickness - _lipHeight;
	separatorHeight = _interiorHeight + _topBottomThickness;
	lidHeight = _interiorHeight + _topBottomThickness + _lipHeight;

	if (_part == "base") {
		makeBase( _style, outsideDiameter, baseHeight,
					_minimumWallThickness, _topBottomThickness,
					_lipHeight, _bayonetDepth, bayonetAngle, _partGap,
					_numberOfSides);
	} else if (_part == "separator") {
		makeSeparator(	_style, outsideDiameter, separatorHeight,
							_minimumWallThickness, _topBottomThickness,
							_lipHeight, _bayonetDepth, bayonetAngle, _partGap,
							_numberOfSides, twistAngle);
	} else if (_part == "lid") {
		makeLid(	_style, outsideDiameter, lidHeight,
					_minimumWallThickness, _topBottomThickness,
					_lipHeight, _bayonetDepth, bayonetAngle,
					_numberOfSides, twistAngle);
	}
}

module makeStylizedCylinder(type, diameter, height, rounding, polygonSides) {
	radius = diameter/2;
	if (type == "crown") {
		crownCylinder(polygonSides, radius, height, rounding);
	} else if (type == "flipped crown") {
		translate([0,0,height])
		mirror([0,0,1]) {
			crownCylinder(polygonSides, radius, height, rounding);
		}
	} else if (type == "polygon") {
		polyCylinder(polygonSides, radius, height, rounding);
	} else {
		roundCylinder(radius, height, rounding);
	}
}

module thread(r1, r2, angle, height, yoffset, rotation, chamfer=0, r3=0, r4=0) {
	for(a=[0,120,240])
	rotate([0,0,a + rotation])
	translate([0,0,yoffset]) {
		hull() {
			smallArc(r1, r2, angle, height);
			if (chamfer != 0) {
				translate([0,0,chamfer]) {
					smallArc(r3, r4, angle, height);
				}
			}
		}
	}
}

module makeBase(style, diameter, height, wall, base, lipHeight, bayonetDepth, bayonetAngle, partGap, sides) {
	height = max(height, base+lipHeight);
	radius = diameter/2;
	innerRadius = radius - wall*2 - bayonetDepth - partGap;
	fullHeight = height + lipHeight;
	rounding = 1.0;
	chamfer = bayonetDepth;
	bayonetHeight = (lipHeight-chamfer)/2;
	eps = 0.1;

	difference() {
		union() {
			// body
			if (style == "tapered") {
				taperedCylinder(radius, innerRadius+wall, height, rounding);
			} else {
				makeStylizedCylinder(style, diameter, height, rounding, sides);
			}

			// lip
			translate([0,0,rounding+eps]) {
				cylinder(r=innerRadius+wall, h=fullHeight-rounding-eps);
			}

			// bayonet
			thread(innerRadius+wall-eps, innerRadius+wall+bayonetDepth,
					bayonetAngle, bayonetHeight, fullHeight - bayonetHeight/2, 0,
					-chamfer, innerRadius, innerRadius+wall);
		}

		// inner cutout
		translate([0,0,base]) {
			cylinder(r=innerRadius, h=fullHeight);

			if (style == "round thin") {
				hull() {
					cylinder(r=radius-wall, h=height-base*2 - (radius-innerRadius));
					cylinder(r=innerRadius, h=height-base*2);
				}
			}
		}
	}
}

module makeLid(style, diameter, height, wall, base, lipHeight, bayonetDepth, bayonetAngle, sides, twistAngle) {
	height = max(height, base+lipHeight);
	bayonetAngle = bayonetAngle+2;
	radius = diameter/2;
	innerRadius = radius - wall - bayonetDepth;
	rounding = 1.0;
	chamfer = bayonetDepth;
	bayonetHeight = (lipHeight-chamfer)/2;
	eps = 0.1;

	difference() {
		// body (round, hex, knurled)
		if (style == "tapered" || style == "thin") {
			taperedCylinder(radius, innerRadius+wall, height, rounding);
		} else {
			makeStylizedCylinder(style, diameter, height, rounding, sides);
		}

		// inner cutout
		translate([0,0,base]) {
			cylinder(r=innerRadius, h=height+eps);

			if (style == "round thin") {
				hull() {
					cylinder(r=radius-wall, h=height-lipHeight-base*2 - (radius-innerRadius));
					cylinder(r=innerRadius, h=height-lipHeight-base*2);
				}
			}

		}

		// bayonet
		thread(innerRadius-eps, innerRadius+bayonetDepth,
				bayonetAngle, lipHeight + eps, height - lipHeight/2 + eps/2, twistAngle + bayonetAngle);

		// bayonet
		thread(innerRadius-eps, innerRadius+bayonetDepth,
				bayonetAngle+twistAngle, bayonetHeight + eps, height - (lipHeight - bayonetHeight/2) + eps/2,
				twistAngle + bayonetAngle,
				chamfer, innerRadius-eps, innerRadius);
	}
}

module makeSeparator(style, diameter, height, wall, base, lipHeight, bayonetDepth, bayonetAngle, partGap, sides, twistAngle) {
	height = max(height, base+lipHeight);
	radius = diameter/2;
	innerRadius = radius - wall*2 - bayonetDepth - partGap;
	middleRadius = radius - wall - bayonetDepth;
	wallThickness = radius - innerRadius;
	fullHeight = height + lipHeight;
	rounding = 0;
	topBayonetAngle = bayonetAngle+2;
	chamfer = bayonetDepth;
	bayonetHeight = (lipHeight-chamfer)/2;
	eps = 0.1;

	difference() {
		union() {
			// lip
			cylinder(r=innerRadius+wall, h=fullHeight);

			// body
			translate([0,0,lipHeight]) {
				makeStylizedCylinder(style, diameter, height, rounding, sides);
			}

			// bayonet
			thread(innerRadius+wall-eps, innerRadius+wall+bayonetDepth,
					bayonetAngle, bayonetHeight, bayonetHeight/2, 0,
					chamfer, innerRadius, innerRadius+wall);
		}

		// inner cutout
		translate([0,0,base]) {
			cylinder(r=innerRadius, h=fullHeight);
		}
		translate([0,0,lipHeight+max(wall,base)]) {
			cylinder(r=middleRadius, h=fullHeight);
		}
		if (style == "round thin") {
			assign(cutHeight = height-lipHeight-base*2 - wallThickness*2) {
				if (cutHeight > 0)
				translate([0,0,lipHeight+base])
				hull() {
					translate([0,0,wallThickness])
					cylinder(r=radius-wall, h=cutHeight);
					cylinder(r=innerRadius, h=cutHeight + wallThickness*2);
				}
			}
		}

		// thread cutout
		translate([0,0,fullHeight-lipHeight-partGap]) {
			cylinder(r=middleRadius, h=lipHeight+partGap+eps);
		}

		// top thread
		thread(middleRadius-eps, middleRadius+bayonetDepth,
				topBayonetAngle, lipHeight+eps, fullHeight - lipHeight/2 + eps/2, twistAngle + topBayonetAngle);

		// top thread
		thread(middleRadius-eps, middleRadius+bayonetDepth,
				topBayonetAngle+twistAngle, bayonetHeight + eps,
				fullHeight - lipHeight + bayonetHeight/2 + eps/2,
				twistAngle + topBayonetAngle,
				chamfer, middleRadius-eps, middleRadius);

	}
}

////////////// Utility Functions ///////////////////

// only works from [0 to 180] degrees, runs clockwise from 12 o'clock
module smallArc(radius0, radius1, angle, depth) {
	thickness = radius1 - radius0;
	eps = 0.01;

	union() {
		difference() {
			// full arc
			cylinder(r=radius1, h=depth, center=true);
			cylinder(r=radius0, h=depth+2*eps, center=true);

			for(z=[0, 180 - angle]) {
				rotate([0,0,z])
				translate([-radius1,0,0])
				cube(size = [radius1*2, radius1*2, depth+eps], center=true);
			}
		}
	}
}

module torus(r1, r2) {
	rotate_extrude(convexity = 4)
	translate([r1, 0, 0])
	circle(r = r2);
}

module roundCylinder(radius, height, rounding) {
	if (rounding == 0) {
		cylinder(r=radius, h=height);
	} else {
		hull() {
			translate([0,0,height-rounding]) {
				cylinder(r=radius, h=rounding);
			}
			translate([0,0,rounding]) {
				torus(radius-rounding, rounding);
			}
		}
	}
}

module taperedCylinder(radius1, radius2, height, rounding) {
	eps = 0.1;
	hull() {
		translate([0,0,height-eps]) {
			cylinder(r=radius1, h=eps);
		}

		if (rounding == 0) {
			cylinder(r=radius2, h=eps);
		} else {
			translate([0,0,rounding]) {
				torus(radius2-rounding, rounding);
			}
		}
	}
}

module crownCylinder(sides, radius, height, rounding) {
	eps = 0.1;
	angle = 360/sides;
	hull() {
		translate([0,0,height-eps]) {
			cylinder(r=radius, h=eps);
		}
		translate([0,0,rounding])
		hull() {
			for (a=[0:angle:360])
			rotate([0,0,a])
			translate([0,(radius-rounding) / cos(angle/2),0]) {
				if (rounding == 0) {
					cylinder(r=1, h=eps);
				} else {
					sphere(r=rounding, $fn=30);
				}
			}
		}
	}
}

module polyCylinder(sides, radius, height, rounding) {
	angle = 360/sides;
	if (rounding == 0) {
		hull() {
			for (a=[0:angle:360])
			rotate([0,0,a])
			translate([0,(radius - rounding)/cos(angle/2),0]) {
				cylinder(r=1, h=height, $fn=30);
			}
		}
	} else {
		hull() {
			translate([0,0,height-rounding]) {
				hull() {
					for (a=[0:angle:360])
					rotate([0,0,a])
					translate([0,(radius - rounding)/cos(angle/2),0]) {
						cylinder(r=rounding, h=rounding, $fn=30);
					}
				}
			}

			translate([0,0,rounding])
			hull() {
				for (a=[0:angle:360])
				rotate([0,0,a])
				translate([0,(radius - rounding) / cos(angle/2),0]) {
					sphere(r=rounding, $fn=30);
				}
			}
		}
	}
}

```


[User]
Okay, I'm looking to design a holder for a dial indicator, specifically one without lugs, that I can attach to my RepRapPro Mendel Mono 3D printer. I need it to be parametric so I can adjust it for different dial sizes. I have a design in mind, but I need help putting it into a usable OpenSCAD file.

Here's what I'm envisioning:

*   **Overall Structure:** The holder should have a kind of 'block' base with a 'mill' that cuts out spaces for the dial and its stem. The block will be kind of stepped, with a base, a middle section, and then an angled part, finally ending with another base that supports the dial. This will be mostly rectangular prism shapes combined using the `union()` module.

*   **Dial and Stem Mounting:** I need a hole for the stem to pass through. This hole will be a cylinder. I also need a larger cylindrical cutout for the bezel of the dial indicator to sit in. These will be created with the `cylinder()` module.

*   **Clamp Option:**  I want the option to include a small clamp to secure the dial indicator in place. This clamp, if enabled, should be a small cube that intersects with the side of the stem hole and have an additional cylindrical hole for a small screw. If the clamp is not enabled there will be an additional cylindrical hole for a screw for the same purpose but without the block.

*   **Parametric Design:**  I need parameters to control the following:
    *   **`Orientation`:** To choose between "Upright" and "Sideways".  This affects how the main body is rotated.
    *   **`Clamp`:** A boolean to enable or disable the clamp (it looks like true/false is good).
    *   **`Units`:** To use either millimeters or inches (specifically 1 for mm, 25.4 for inches).
    *   **`Stem_Diameter`:**  The diameter of the dial indicator's stem (where it goes into the hole.)
    *   **`Bezel_Diameter`:** The diameter of the dial indicator's bezel (the outer ring).

*   **Positioning:** I need the basic position and dimensions of the block to be similar to the example .scad I provided (I can give you more context if needed), such as the base shapes being at offsets of approximately [-12,0,0], [-12,-17,0], [-12,-20,0], and [-12,-42,-17] with the mill cutouts appropriately placed to interact. I'd like the 'block' and 'mill' modules to be defined, then combined in a `dialholder` module using a `difference()`. The rotation for the Sideways orientation should be -90 deg around the y axis and translate of [12,0,0]

*   **Library:** I'm expecting this to be written in standard OpenSCAD; I am not expecting any external libraries.

Basically, I need an OpenSCAD file that replicates the functionality and structure of my example file, but with all the correct parameterization I specified. Can you please provide the OpenSCAD code for this?

[Assistant]
dialholder.scad:
```
//Upright or Sideways (whichever you feel works best with your support needs/capabilities)
Orientation="Sideways";//[Upright,Sideways]

//Clamp (Requires support)
Clamp="True";//[True,False]

//Units
Units=1;//[1:mm,25.4:inches]

//Diameter of the stem where inserted into the holder
Stem_Diameter=8;

//Diameter of the dial bezel
Bezel_Diameter=56;

Stem_Radius = Stem_Diameter * Units * 0.5;
Bezel_Radius = Bezel_Diameter * Units * 0.5;

module block(){
	union(){
		translate([-12,0,0])
		cube([30,15,15]);

		translate([-12,-17,0])
		cube([22,18,15]);

		rotate(30,[1,0,0])
		translate([-12,-20,0])
		cube([22,20,15]);

		translate([-12,-42,-17])
		cube([22,25,17]);
	}
}

module mill(){
	translate([7.5,5,-2])
	cylinder(r=1.5,h=25,$fn=20);
	translate([-7.5,5,-2])
	cylinder(r=1.5,h=25,$fn=20);

	translate([-1,-30,-20])
	cylinder(r=Stem_Radius,h=40,$fn=20);

	rotate(90,[0,1,0])
	translate([30-(2*Bezel_Radius),-30,0])
	cylinder(r=Bezel_Radius,h=25, center=true,$fn=30);

	if(Clamp=="True"){
		translate([-2,-54,-20])
		cube([2,25,25]);
		rotate(90,[0,1,0])
		translate([10,-38,-20])
		cylinder(r=1.5,h=40,$fn=20);
	}else{
		rotate(90,[0,1,0])
		translate([10,-30,-20])
		cylinder(r=1.5,h=40,$fn=20);
	}
}

module dialholder(){
	difference(){
		block();
		mill();
	}
}

if(Orientation=="Sideways"){
	rotate(-90,[0,1,0])
	translate([12,0,0])
	dialholder();
}else{
	translate([0,0,17])
	dialholder();
}

```


[User]
Okay, I'm looking to design a custom skateboard truck riser, and I'd like to be able to adjust the wedge angle, the height, and the bolt patterns. I found this example code online that seems pretty close to what I want, and I'd like to refine it to make it easier to customize.

Specifically, I want an OpenSCAD file that allows me to set the following parameters:

*   **`tolerance`**: A value, in millimeters, to add to hole diameters for a looser fit (for printing).
*   **`rise`**:  The base thickness of the riser at its thinnest point, in millimeters. This will be 0 for a wedge with a tapered edge.
*   **`angle`**: The angle of the wedge, in degrees, between 0 and 45.
*  **`length`**: The length of the riser in mm
*   **`width`**: The width of the riser in mm
* **`bolt_size`**: the metric bolt size (e.g. 3 for M3, 5 for M5, etc).
*   **`oldschool_pattern`**: A boolean (0 or 1) to enable or disable the old-school truck mounting holes.
*   **`newschool_pattern`**: A boolean (0 or 1) to enable or disable the new-school truck mounting holes. The current code displaces one of the patterns to handle both patterns. I'd like this to be controlled by a separate displacement variable, so I can choose to put either pattern at the base and move the other.
*   **`newschool_displacement`**: A float, to control displacement of the newschool pattern, so I can move either the front or rear truck to the base.

I also would like to ensure that the following libraries and functions are used:
*  Metric nut and bolt dimensions should be obtained via lookup tables, I prefer the method in the example which is based on: http://www.roymech.co.uk/Useful_Tables/Screws/Hex_Screws.htm.
*   The holes should be made using a function that uses the `tolerance` variable so they are sized right, and the depth needs to go all the way through the object.
*   The base of the riser needs to be a swept 2D shape that is then extruded to the given width, not a cube.
* I am not interested in using inches, so the `units` variable should be ignored.

The core functionality that I want is essentially the same as the provided example code `wedge()` module, but I need more flexibility over how the two different bolt patterns are placed, and I'd like to see it made in a clean way with well-named parameters.  I do want it to automatically handle the offset between the oldschool and newschool patterns if both are enabled.

Could you create an OpenSCAD file that meets these requirements?

[Assistant]
truckwedge_customizer.scad:
```
// This makes the holes bigger.
tolerance = .3;
// This determines how thick the base of the riser will be in mm.
rise = 0; // [0:100]
// This Determines the angle of the wedge, between 0 and 45 degrees. Dont forget you can stack these too!
angle = 7.5; // [0:45]

// Copyright 2010 D1plo1d

// This library is dual licensed under the GPL 3.0 and the GNU Lesser General Public License as per http://creativecommons.org/licenses/LGPL/2.1/ .

//testNutsAndBolts();

module SKIPtestNutsAndBolts()
{
	$fn = 360;
	translate([0,15])nutHole(3, proj=2);
	boltHole(3, length= 30, proj=2);
}

MM = "mm";
INCH = "inch"; //Not yet supported

//Based on: http://www.roymech.co.uk/Useful_Tables/Screws/Hex_Screws.htm
METRIC_NUT_AC_WIDTHS =
[
	-1, //0 index is not used but reduces computation
	-1,
	-1,
	6.40,//m3
	8.10,//m4
	9.20,//m5
	11.50,//m6
	-1,
	15.00,//m8
	-1,
	19.60,//m10
	-1,
	22.10,//m12
	-1,
	-1,
	-1,
	27.70,//m16
	-1,
	-1,
	-1,
	34.60,//m20
	-1,
	-1,
	-1,
	41.60,//m24
	-1,
	-1,
	-1,
	-1,
	-1,
	53.1,//m30
	-1,
	-1,
	-1,
	-1,
	-1,
	63.5//m36
];
METRIC_NUT_THICKNESS =
[
	-1, //0 index is not used but reduces computation
	-1,
	-1,
	2.40,//m3
	3.20,//m4
	4.00,//m5
	5.00,//m6
	-1,
	6.50,//m8
	-1,
	8.00,//m10
	-1,
	10.00,//m12
	-1,
	-1,
	-1,
	13.00,//m16
	-1,
	-1,
	-1,
	16.00//m20
	-1,
	-1,
	-1,
	19.00,//m24
	-1,
	-1,
	-1,
	-1,
	-1,
	24.00,//m30
	-1,
	-1,
	-1,
	-1,
	-1,
	29.00//m36
];

COURSE_METRIC_BOLT_MAJOR_THREAD_DIAMETERS =
[//based on max values
	-1, //0 index is not used but reduces computation
	-1,
	-1,
	2.98,//m3
	3.978,//m4
	4.976,//m5
	5.974,//m6
	-1,
	7.972,//m8
	-1,
	9.968,//m10
	-1,
	11.966,//m12
	-1,
	-1,
	-1,
	15.962,//m16
	-1,
	-1,
	-1,
	19.958,//m20
	-1,
	-1,
	-1,
	23.952,//m24
	-1,
	-1,
	-1,
	-1,
	-1,
	29.947,//m30
	-1,
	-1,
	-1,
	-1,
	-1,
	35.940//m36
];

module nutHole(size, units=MM, tolerance = +0.0001, proj = -1)
{
	//takes a metric screw/nut size and looksup nut dimensions
	radius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance;
	height = METRIC_NUT_THICKNESS[size]+tolerance;
	if (proj == -1)
	{
		cylinder(r= radius, h=height, $fn = 6, center=[0,0]);
	}
	if (proj == 1)
	{
		circle(r= radius, $fn = 6);
	}
	if (proj == 2)
	{
		translate([-radius/2, 0])
			square([radius*2, height]);
	}
}

module boltHole(size, units=MM, length, tolerance = +0.0001, proj = -1)
{
	radius = COURSE_METRIC_BOLT_MAJOR_THREAD_DIAMETERS[size]/2+tolerance;
//TODO: proper screw cap values
	capHeight = METRIC_NUT_THICKNESS[size]+tolerance; //METRIC_BOLT_CAP_HEIGHTS[size]+tolerance;
	capRadius = METRIC_NUT_AC_WIDTHS[size]/2+tolerance; //METRIC_BOLT_CAP_RADIUS[size]+tolerance;

	if (proj == -1)
	{
	translate([0, 0, -capHeight])
		cylinder(r= capRadius, h=capHeight);
	cylinder(r = radius, h = length);
	}
	if (proj == 1)
	{
		circle(r = radius);
	}
	if (proj == 2)
	{
		translate([-capRadius/2, -capHeight])
			square([capRadius*2, capHeight]);
		square([radius*2, length]);
	}
}

/* length, width of wedge
    height of side 1 and 2
    drill oldschool and/or newschool pattern
    bolt size (M)

    NOTE: if both oldschool and newschool bits are set to 1,
    the newschool pattern will be displaced to match on one side.
*/
module wedge(len, wid, hei1, hei2, oldschool, newschool, bolt, angle1, derpschool) {

len = 80;
bolt_wid = 41.28;
new_len = 53.98;
old_len = 63.5;
angle1 = angle;
hei1 = tan(angle1)*len+rise;
hei2 = rise;

mx = len/2;
my = wid/2;

difference() {
  rotate([0,-90,0])
  linear_extrude(height=wid)
    polygon (points = [[0,0],[0,len],[hei2,len],[hei1,0]]);

/* for sunken holes you'll never need,
   translate z by
                     hei1 + (hei2-hei1)/len * (mx + x*mx*3/4) -0.5
*/

if (oldschool==1) {
  for (x = [-1,1])
  for (y = [-1,1])
  translate([-my + y * bolt_wid/2, mx + x * old_len/2, hei1+hei2 ])
  rotate([180,0,0])
  boltHole(bolt, length=hei1+hei2+0.1, tolerance=tolerance, 2);
}

if (newschool==1) {
  for (x = [-1,1])
  for (y = [-1,1])
  translate([-my + y * bolt_wid/2, mx + x * new_len/2 +(old_len-new_len)/2 * oldschool, hei1+hei2])
  rotate([180,0,0])
  boltHole(bolt, length=hei1+hei2+0.1, tolerance=tolerance, 2);
}
if (newschool==1) {
  for (x = [-1,1])
  for (y = [-1,1])
  translate([-my + y * bolt_wid/2, mx + x * new_len/2 -(old_len-new_len)/2 * oldschool, hei1+hei2])
  rotate([180,0,0])
  boltHole(bolt, length=hei1+hei2+0.1, tolerance=tolerance, 2);
}
}
}

/* example */
wedge (90, 58, 15, 10, 1, 1, 5);
/**/
```


[User]
Okay, I'm looking to create a custom carabiner for my keyring, similar to one I saw online. I'd like to be able to adjust several key dimensions and have it be relatively smooth.

Here are the features I'm looking for:

1.  **Shape:** The basic shape should be a loop formed by connecting two cylinders of different radii.  The smaller cylinder radius will be at one end, and the larger radius at the other. These cylinders are not complete circles, rather they are partial cylinders that combine to form a C-shape with a constant height.

2.  **Parameters:** I want to control these parameters:
    *   `radius1`: The radius of the smaller cylinder.
    *   `radius2`: The radius of the larger cylinder.
    *   `length`: The distance between the centers of the two cylinders.
    *   `width`:  The thickness of the carabiner body.
    *   `height`: The height of the carabiner body.
    *   `gap`: The width of a gap that cuts through the carabiner to allow it to be opened. This gap should be implemented by two rectangular cuts through the body, angled at 45/60 degrees in the X/Y/Z plane of rotation so the gap is diagonal through the body.
    *   `overhang`: An angle (in degrees) that specifies how much of an overhang the printer should be able to manage when making the bevels. The bevels will be generated using Minkowski sums.
    *   `rounded`: The width (in mm) of the rounded, bevelled edge.

3.  **Construction:**
    * The main body should be created with a `minkowski()` to add rounded bevels to the carabiner's edges. The bevel should be subtracted from the original shape to create rounded edges at the ends of the extruded body.
    * The base shape is constructed using a `swept_cylinder()` module, which is really a hull of two cylinders to create a smooth curve connecting the radii. This module will need parameters for height, length, and the two radii.
    * The gap should be a subtractive cut, and should use rotated cubes so the gap is diagonal through the body.

4.  **Hollow Core:** I'd like the final design to be hollow to reduce material usage, leaving the solid shell of the carabiner. This should be achieved by a difference of a slightly smaller copy of the main shape. The shell thickness will need to be an additional parameter, `thick`, so that the body is hollowed out.

5. **Bevel Details:** The edges should have a bevelled profile. This should be created with a `diamond()` module, which uses a `cutter()` module to make the bevels. The `cutter()` module uses several rotated cubes with respect to the bevel angle to create the bevel on the Minkowski operation.

6.  **Libraries:** I am not aware of any specific libraries that would be helpful, so no library usage is required. I would like you to provide all necessary modules.

7.  **Smoothness:** I'd like the resulting model to be smooth. Using `$fs` and `$fa` variables to manage the smoothness of the generation would be preferable.

Can you provide an OpenSCAD file that implements these features?

[Assistant]
CustomCarabiner.scad:
```
// Title: Key Carabiner
// Author: http://www.thingiverse.com/Jinja
// Date: 17/12/2012

/////////// START OF PARAMETERS /////////////////

// the first smaller radius
radius1 = 6;

// the second larger radius
radius2 = 11;

// the distance between the centers of the radii
length = 36;

// the thickness of the body
width = 6;

// the height of the body
height = 6;

// the width of the gap that cuts the body
gap = 0.39;

// the angle of overhang your printer can manage
overhang = 40;  //[35:45]

// the mm width of the bevelled edge
rounded = 1;

/////////// END OF PARAMETERS /////////////////

$fs=0.3*1;
$fa=5*1; //smooth
//$fa=20*1; //rough

module loop( height, length, width, radius1, radius2 )
{
	minkowski()
	{
		translate([0,0,rounded])
		difference()
		{
			swept_cylinder( height-2*rounded, length, radius1+width-rounded, radius2+width-rounded );
			swept_cylinder( height-2*rounded, length, radius1+rounded, radius2+rounded );
		}
		diamond();
	}

}

thick = 1.2*1;

difference()
{
	difference()
	{
		loop( height, length, width, radius1, radius2 );
		difference()
		{
			translate([0,0,thick])
			loop( height-2*thick, length, width-2*thick, radius1+thick, radius2+thick );
			cube([3*radius1+width,3*radius1+width,3*radius1+width],true);

			translate([length-(thick/cos(60)),radius2-width,height*0.5])
			rotate([0,45,60])
			{
				cube([height*2, length, gap+2*thick]);
				cube([gap+2*thick, length, height*2]);
			}

		}
	}
	translate([length,radius2-width,height*0.5])
	rotate([0,45,60])
	{
		cube([height*2, length, gap]);
		cube([gap, length, height*2]);
	}
}

module swept_cylinder( height, length, radius1, radius2 )
{
	hull()
	{
		cylinder( height, radius1, radius1 );
		translate( [length,0,0] )
		cylinder( height, radius2, radius2 );
	}
}

module cutter(dist, overhang)
{
	size = dist*2;

	translate([dist,-dist,-dist])
	cube([size,size,size]);

	translate([-dist-size,-dist,-dist])
	cube([size,size,size]);

	translate([dist,-dist,0])
	rotate([0,-overhang,0])
	cube([size,size,size]);

	translate([-dist,-dist,0])
	rotate([0,-90+overhang,0])
	cube([size,size,size]);

	translate([dist,-dist,0])
	rotate([0,90+overhang,0])
	cube([size,size,size]);

	translate([-dist,-dist,0])
	rotate([0,180-overhang,0])
	cube([size,size,size]);

}

module diamond()
{
	dist = rounded;
	difference()
	{
		cube([2*rounded,2*rounded,2*rounded], true);
		for(i=[0:45:179])
		{
			rotate([0,0,i])
			cutter(dist, overhang);
		}
	}
}

```


[User]
Okay, I'd like to design a customizable battery case, kind of like a travel holder. I've seen a design online, but it uses magnets and I'd prefer something that just snaps together. I need it to be parametric so I can adjust it for different battery sizes and quantities.

Here's what I have in mind:

**Core Features:**

*   **Two-Part Design:** The case should be made of two parts: a top and a bottom, which snap together using a lip or tab system rather than magnets.
*   **Cylindrical Battery Holders:** The interior should consist of individual cylindrical recesses or pockets to hold the batteries securely.
*   **Customizable Grid:** I need to be able to specify how many rows and columns of batteries I want the case to hold.
*   **Adjustable Battery Size:** I need to be able to set the diameter of the battery holders to accommodate different battery sizes (like AAA, AA, 123A, etc.).
*   **Adjustable Depth:** I'd like to specify the depth of the battery recesses as well as the overall height of the top and bottom pieces, ideally to be slightly larger than the battery to ensure they are not sticking out.
*   **Wall Thickness:** I want to set the thickness of the side walls of the case, and also the thickness of the bottom part.

**Snap-Fit Mechanism:**

*   **Overlapping Lip:** The snap fit should be based on an overlapping lip system. The top should have a lip that goes down and overlaps the base, or vice versa.
*   **Adjustable Lip Height:** I need to be able to adjust the height of this lip to get a snug and secure fit.
*   **Adjustable Fit Gap:** I need to adjust the gap between the top and bottom parts to dial in the fit.

**Optional Features:**

*   **Label:** I'd like to be able to add a label to the top or bottom, like "AA" or "AAA". This should be able to be embossed or extruded.
*   **Font Choice:** I need to specify the font to use for the label.
*   **Adjustable Label Depth:**  I need to be able to adjust the depth of the label (positive for extrusion, negative for embossing).
*   **Adjustable Label Height:** I need to specify how tall the label text should be.

**Specific Requests for the Design:**

*   The design should be fully parametric, so every dimension mentioned above is adjustable through variables.
*   I'd like the design to have rounded corners, but I don't want to have to use a large number of small parts to do so. I see there's a `roundRect()` module in the example I've included, and that seems good.
*   I need to ensure the design does *not* use any magnets or cutouts for magnets.
*   The design should use the `write/Write.scad` library for text generation/embossing. I've also included an example where I'm using that.

Can you generate a parametric OpenSCAD file based on these requirements?

[Assistant]
battery_carrier_v2-3.scad:
```
use <write/Write.scad>

// part type, you will need a top and bottom piece
_part = "bottom"; //[top, bottom]

// AA-14.6mm, AAA-10.7mm, 123A-16.9mm, CR2-15.6mm
_batteryDiameter = 10.7;

// height of the battery recess (height of top and bottom piece should be equal to or slightly larger than the battery height)
_insideHeight = 30;

// number of batteries across
_columns = 3; // [1:50]

// number of batteries deep
_rows = 2; // [1:50]

// thickness of the side walls
_walls = 0.8;

// thickness of the bottom layer
_base = 0.8;

// height of the lip where the parts overlap, increase the value for a more secure fit
_lipHeight = 2;

// gap between the top and bottom pieces, decrease the value for a tighter fit.
_fitGap = 0.1;

// rendered on top of the lid or on the bottom of the base (you'll need to rotate the tray to see the text underneath)
_labelText = "";

// font used to render the label
_labelFont = "write/orbitron.dxf"; // ["write/orbitron.dxf":Orbitron, "write/letters.dxf":Basic, "write/knewave.dxf":KneWave, "write/BlackRose.dxf":BlackRose, "write/braille.dxf":Braille]

// depth of the label (negative values to emboss, positive values to extrude)
_labelDepth = -0.3;

// height of the label in mm
_labelHeight = 8;

///////////////////////////////////////////////////////////////////////////

module cylinderAt(r, h, x, y, z) {
	translate([x,y,z]) {
		cylinder(r=r, h=h, center=true);
	}
}

module cubeAt(xy, h, x, y) {
	translate([x,y,0]) {
		cube(size=[xy,xy,h], center=true);
	}
}

module roundRect(width, depth, height, rounding) {
	hull()
	for (x=[-width/2 + rounding, width/2 - rounding])
	for (y=[-depth/2 + rounding, depth/2 - rounding]) {
		translate([x,y])
		cylinder(r=rounding, h=height);
	}
}

module batteryGrid(diameter, height, rows, columns) {
	angle = 35;
	r = diameter/2;
	cut = 2*r*sin(angle);
	tan = tan(angle);
	filletCenter = r - r * tan;
	filletCenter2 = r + r * tan;
	filletOffset = r * tan;
	filletRadius = r/cos(angle) - r;
	xstart = ((columns-1) * diameter)/2;
	ystart = ((rows-1) * diameter)/2;
	eps = 0.1;

	union() {
		difference() {
			union() {
				// cylinder
				for (x=[-xstart:diameter:xstart+eps]) {
					for (y=[-ystart:diameter:ystart+eps]) {
						cylinderAt(r,height,x,y,0);
					}
				}

				if (rows > 1) {
					for (x=[-xstart:diameter:xstart+eps])
					for (y=[-ystart+r:diameter:ystart-r+eps]) {
						cubeAt(cut, height, x, y);
					}
				}

				if (columns > 1) {
					for (x=[-xstart+r:diameter:xstart-r+eps])
					for (y=[-ystart:diameter:ystart+eps]) {
						cubeAt(cut, height, x, y);
					}

				}
			}

			if (columns > 1) {
				for (x=[-xstart+r:diameter:xstart-r+eps])
				for (y=[-ystart-r:diameter:ystart+r+eps])
				for(y2=[filletOffset, -filletOffset]) {
					cylinderAt(filletRadius,height+eps,x,r+y+y2,0);
				}
			}

			if (rows > 1) {
				for (x=[-xstart:diameter:xstart+eps])
				for (y=[-ystart:diameter:ystart+eps])
				for(x2=[filletOffset, -filletOffset]) {
					cylinderAt(filletRadius, height+eps,x + x2, r+y, 0);
				}
			}
		}
	}
}

module makeTray(diameter, height, rows, columns, wall, base, lipHeight, fitGap, label, lfont, ldepth, lheight) {
	eps = 0.1;
	wall2 = wall * 2;
	rounding = diameter/2 + wall;
	width = diameter * columns + wall*2;
	depth = diameter * rows + wall*2;
	gridHeight = (lipHeight > 0) ? height + lipHeight - fitGap : height;

	union() {
		difference() {
			roundRect(width, depth, gridHeight+base, rounding);

			translate([0,0,gridHeight/2 + base + eps/2]) {
				batteryGrid(diameter, gridHeight+eps, rows, columns);
			}

			if (lipHeight < 0) { // lid
				assign(gap = min(fitGap, -0.01)) {
					translate([0,0,base+height+lipHeight]) {
						roundRect(width - 2*wall+gap, depth - 2*wall+gap, -lipHeight+eps, rounding - wall);
					}
				}
			} else if (lipHeight > 0) {
				assign(gap = max(fitGap, 0.01)) {
					translate([0,0,base+height])
					difference() {
						translate([0,0,(lipHeight+eps)/2]) {
							cube(size=[width+eps, depth+eps, lipHeight+eps], center=true);
						}

						translate([0,0,-eps]) {
							roundRect(width - 2*(wall+gap), depth - 2*(wall+gap), lipHeight + 2*eps, rounding - wall - gap);
						}
					}

				//	bevel
				if (lipHeight > wall) {
					for (m = [-1,1]) {
						hull()
						for (o = [0,1]) {
							translate([0,m*(depth/2 + lipHeight/2 - wall*2 + o*wall - gap), base + height + 1.5*lipHeight - o*wall - gap]) {
								cube(size=[width, lipHeight, lipHeight], center=true);
							}
						}

						hull()
						for (o = [0,1]) {
							translate([m*(width/2 + lipHeight/2 - wall*2 + o*wall - gap),0, base + height + 1.5*lipHeight - o * wall - gap ]) {
								cube(size=[lipHeight, depth, lipHeight], center=true);
							}
						}
					}
					}
				}
			}

			if (ldepth < 0) {
				addLabel(label, (-ldepth+eps)/2 - eps, -ldepth+eps, lheight, lfont);
			}
		}
		if (ldepth > 0) {
			addLabel(label, -(ldepth+eps)/2 + eps, ldepth+eps, lheight, lfont);
		}
	}
}

module addLabel(label, zoffset, depth, height, font) {
	if (label != "") {
		translate([0,0,zoffset])
		mirror([0,1,0])
		write(label, t=depth, h=height, font=font, space=1.2, center=true);
	}
}

module make($fn=90) {

	if (_part == "top") {
		makeTray(_batteryDiameter, _insideHeight, _rows, _columns, _walls, _base, -_lipHeight, _fitGap,
					_labelText, _labelFont, _labelDepth, _labelHeight);
	} else {
		makeTray(_batteryDiameter, _insideHeight, _rows, _columns, _walls, _base, _lipHeight, _fitGap,
					_labelText, _labelFont, _labelDepth, _labelHeight);
	}
}

make();
```


[User]
Okay, so I've got this OpenSCAD file for a thumb piano, and I'd like to make it more customizable and easier to understand. I'm thinking it needs a complete overhaul, but I want to keep the same basic idea.

Here's what I have (and some of my thoughts on what I'd like to change):

The original design has these parts that can be printed: the tines (the metal bits that you pluck), a sound board, and a sound box, and a socket on the soundbox for an amplifier jack, but they're all optional.  I like being able to choose which parts to print but the code is a bit hard to follow.

The tines are generated using a `linear_extrude` with carefully calculated lengths, but it's all kind of buried in there with `translate` calls. I'd like a more parametric approach, maybe using modules, so I could easily change the number of tines, spacing, and so on. And I'd really like to be able to specify the notes and not just rely on the current scale math built in there, including changing tunings and scales. I want to be able to enter the desired frequency for each tine or the tuning interval, instead of the relative length.

The sound board and sound box are basic shapes that could be easily customized and it would be nice to have some options for the style (e.g. rounded corners, a more stylized shape).

Here's what I'm looking for in the new parametric OpenSCAD file:

1.  **Clear Module Structure:** I want well-defined modules for the tines, the sound board, and the sound box.
2.  **Tine Customization:**
    *   A module to create a single tine, taking length, width, and position as parameters, and ideally frequency or the interval from a base note.
    *   A parameter to determine how many tines there are.
    *   A parameter to control the gap between tines.
    *   A parameter for the base tine length.
    *   An option to define the frequency, note name, or interval of each tine explicitly.
    *   Option for using a standard tuning (e.g. 12-TET) for frequency math
    *   Option to define tuning in cents or interval
    *   Option to set a global tuning frequency (A4 = 440Hz, for example)
    *   Option to define which note each tine should be
3.  **Sound Board Customization:**
    *   Parameters for the sound board's width, length, and thickness.
    *   Options for mounting/attachment points, maybe with a parameter to specify the size and position.
    *   Option for corner radius
4.  **Sound Box Customization:**
    *   Parameters for the sound box's overall dimensions and wall thickness.
    *   An option to include the socket hole for an amplifier plug, with size and position parameters, and options for different socket sizes (e.g. 3.5mm).
    *   Option for rounding corners
5.  **Print Options:**
    *   I'd like to keep the ability to easily choose which parts to print, using variables or parameters for each component (tines, sound board, sound box).
6.  **Libraries:**
    *  I know there is a build_plate module in this design, so make sure to include that.
    *  I am okay with any libraries that seem reasonable. (but not too many, I want to keep the core parametric). I know there are many math libraries for OpenSCAD, I am okay with using one of those. Please let me know which libraries you will use in the response.
7.  **Comments:** I would like all of the code to be well commented to explain the function of different parts of the design.

Essentially, I want to be able to easily create different thumb pianos by changing a few parameters, including the notes, shape and overall dimensions. I would also appreciate a good explanation of the provided code.

[Assistant]
ThumbPiano.scad:
```
// A Thumb Piano
// by Patrick Wiseman
// Version 20130305
// thingiverse.com/thing:57380
use <utils/build_plate.scad>;
print_sound_board="no"; // [yes,no]
print_sound_box="no"; // [yes,no]
// For easy installation of socket to plug in to amplifier
print_sound_box_socket="no"; // [yes,no]
print_tines="yes"; // [yes,no]
// of the longest tine, in mm, to determine key (75x4 = F# with my red PLA!)
tine_length=75; // [20:80]
// from 3-5 mm
tine_width=4; // [3,3.1,3.2,3.3,3.4,3.5,3.6,3.7,3.8,3.9,4,4.1,4.2,4.3,4.4,4.5,4.6,4.7,4.8,4.9,5]
// between tines, from 1-2 mm
tine_gap=1.5; // [1,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2]
// for future customization
tine_number=8*1; // [7,8,9,11,13]
build_plate(3,230,200); // Type A Machines Series 1 build plate
// Save each part as a separate STL file by answering "yes" one by one
// I print each part with .2mm layers, 3 solid layers top and bottom, 2 perimeters
if (print_tines=="yes") {
// print solid to provide consistent density, vibration
translate([-((tine_number+1)*(tine_width+tine_gap))/2,0,0]) cube([(tine_number+1)*(tine_width+tine_gap),6,6]);
translate([-20,0,6]) cube([40,4,4]);
linear_extrude(height=2) {
// the frequency ratios below use just intonation (Google it!)
// Use F = A/L^2 to find L for each frequency F, where A is a constant dependent on the material, and L is the length of the tine. Knowing L0 (our base length), L = sqrt(1/c)*L0, where c is the ratio defining the frequency
translate([0,6,0]) square([tine_width/2,tine_length]);
translate([tine_width/2+tine_gap,6,0]) square([tine_width,tine_length*sqrt(8/9)]); // major 2d
translate([tine_width/2+tine_width+2*tine_gap,6,0]) square([tine_width,tine_length*sqrt(3/4)]); // perfect 4th
translate([tine_width/2+2*tine_width+3*tine_gap,6,0]) square([tine_width,tine_length*sqrt(3/5)]); // major 6th
translate([tine_width/2+3*tine_width+4*tine_gap,6,0]) square([tine_width,tine_length*sqrt(1/2)]); // octave
mirror([1,0,0]) {
translate([0,6,0]) square([tine_width/2,tine_length]);
translate([tine_width/2+tine_gap,6,0]) square([tine_width,tine_length*sqrt(4/5)]); // major 3d
translate([tine_width/2+tine_width+2*tine_gap,6,0]) square([tine_width,tine_length*sqrt(2/3)]); // perfect 5th
translate([tine_width/2+2*tine_width+3*tine_gap,6,0]) square([tine_width,tine_length*sqrt(8/15)]); // major 7th
}
} // end linear_extrude
} // end print_tines
if (print_sound_board=="yes") {
// print with 15% infill
difference() {
translate([1,-85,0]) // 1,-(y+5),0
cube([100,80,3]); // x,y,z
union() {
translate([15,-66,0])
cube([4,40,4]);
translate ([75,-45,0]) cylinder(4,15,15);
}
}
translate([3,-83,3]) linear_extrude(height=3) difference() {
square([96,76]); // x-4,y-4
translate([1.5,1.5,0]) square([93,73]);
}
}
if (print_sound_box=="yes") {
// print with 50% infill
translate([-101,-85,0]) // -(x+1),-(y+5),0
difference() {
cube([100,80,40]);
union() {
translate([2,2,2]) cube([96,76,50]);
if (print_sound_box_socket=="yes") {
// hole for 1/4" (6.35mm) plug
translate([-4,20,20]) rotate([0,90,0]) cylinder(8,5.5,5.5);
}
}
}
}

```


[User]
Okay, I need help creating a parametric LCD enclosure in OpenSCAD. I'm aiming for a simple box design, with a cutout to fit an LCD screen, and an optional lid. I'd like to be able to adjust several key dimensions, like the overall box size, the size and position of the screen cutout, the wall thickness, and the height of the box.

Here's a more specific breakdown of the features I want:

*   **Box Dimensions:** I need to be able to set the overall length and width of the box. Let's call these `box_length` and `box_width`. These should define the *outer* dimensions of the box.
*   **Screen Cutout:**  The box needs a rectangular cutout for the LCD screen. I want to specify the length and width of this cutout ( `screen_length` and `screen_width`).  I also want to be able to control its position within the box. Let's use `screen_offset_x` and `screen_offset_y` to control the position, measured from the *inner* edge of the box.
*   **Wall Thickness:** The thickness of the box walls should be adjustable. Let's call this `wall_thickness`. This should apply to all walls (front, back, sides).
*   **Wall Height:** I need to be able to set the height of the sidewalls, let's call this `wall_height`.
*   **Optional Lid:** I'd like an option to generate a lid for the box. This should be a flat piece that matches the box's outer dimensions, and will also have a matching cutout. I'd prefer a variable to enable and disable this, such as `generate_top`, with the options "yes" or "no".

I would like the final code to be self-contained, without requiring any external .scad files or libraries.

Could you generate the OpenSCAD code for me? I'm not looking for anything super complex, just a good starting point for a simple and customizable box.

[Assistant]
lcdbox.scad:
```
// Customizable LCD Holder Box
// 2013 Frank Avery
// dieselpoweredrobotics.com

//Settable Variables

// Defines the length of the box
box_length = 160; // Numeric vaue highter than Screen Length

// Defines the width of the box
box_width = 80; // Numeric value higher than Screen Width

// Defines the LCD screen length
screen_length = 100; // Numeric value smaller than Box Length

// Defines the LCD screen height
screen_width = 40; // Numeric value smaller than Box Width

// Determines the thickness of the box walls
wall_thickness = 5; // Top may not fix if thickness is reduced below 2.

// Determines how tall the box is (height of the sidewalls)
wall_height = 30; // Any numeric value

// Generate a cover for the other side of the box
generate_top = "yes"; // [Yes,No]

//Calculated Variables
wall_offset = wall_thickness / 2;
screen_offset_y = (box_length - screen_length) / 2;
screen_offset_x = (box_width - screen_width) / 2;

module lcdbox()
{
	//lcd screen box
	module screen()
	{
		translate([screen_offset_x,screen_offset_y,-5])
		cube([screen_width,screen_length,30]);
	}

	//front faceplate
	module holder()
	{
		cube([box_width,box_length,wall_thickness]);
	}

	//sidewalls of the box
	module sidewalls()
	{
		difference()
		{
			translate([0,0,wall_thickness]) cube([box_width,box_length,wall_height]);
			translate([wall_offset,wall_offset,-5]) cube([box_width-wall_thickness,box_length-wall_thickness,wall_height+20]);
		}

	}

	//join sidewalls to difference between holder and screen
	union()
	{
		sidewalls();
		difference()
		{
			holder();
			screen();
		}
	}
}

//top to be printed
module lcdbottom()
{
	translate([-100,0,0])
	cube([box_width, box_length,wall_thickness]);

	translate([-100+wall_offset,wall_offset,wall_thickness])
	cube([box_width-wall_thickness,box_length-wall_thickness,wall_thickness]);
}

lcdbox();

if (generate_top == "Yes")
{
	lcdbottom();
}

```


[User]
Okay, I'd like to create a parametric OpenSCAD model for a music box strip, similar to the one described in the provided code. The idea is to generate a strip with holes that correspond to musical notes and their timings, which can then be used with a DIY music box mechanism.

Here's what I'm looking for in the parametric design:

**Core Functionality:**

1.  **Note Input:** The design should accept a string input that defines the notes and their timing. This string would be structured as: `notebeat|notebeat|...`, where `note` is a two-character code representing the musical note (e.g., c1, d1, e1...b1,c2...c3) and `beat` is a two-digit number representing the beat at which the note should occur (e.g., 01, 02, 03...). So, for example, `c101|d102|e103|` would mean a C1 on beat 1, a D1 on beat 2 and an E1 on beat 3.
2.  **Predefined Songs:** It should also be possible to select from pre-defined note strings for common songs like the "Star-Spangled Banner" (Note: I can give you the specific note string later if needed). It should default to the user defined Note-String if no song is selected.
3. **Note String Helper:** The design should include instructions for using a note string helper like the one linked in the description.

**Parameters:**

*   **`LayerThickness`:**  The thickness of the strip. Should have a default of 0.4mm, with the understanding that it shouldn't exceed 0.4mm for compatibility with music boxes, and should likely be created with at least two layers from a slicer.
*   **`StripeWidth`:** The width of the strip. I'd like a default of 42mm, and would like the option to change it between 30 and 50mm.
*   **`StripeLength`:** The total length of the strip, allowing for variable song lengths. A default of 90mm would be good, with the option to choose between 10 and 200mm.
*   **`MarginLeft`:** The distance of the lowest note (c1) from the left edge of the strip. A default of 5mm, and should be adjustable between 2 and 10mm.
*   **`BeatDistance`:** The distance between each beat along the length of the strip.  A default of 3.5mm, but I'd like to change this as well.
*   **`ToneDistance`:** The distance between each of the notes in pitch, across the width of the strip. A default of 2mm would be good.
*   **`SongPicker`:** To select between "Note-String" for a user-provided string, or "Star-Spangled Banner" for the pre-defined note string for that song.

**Output:**

*   The design should output a 3D printable model of the music box strip, with cutouts (holes) in the correct locations, corresponding to notes and their timings based on the input parameters.

**OpenSCAD Implementation Specifics:**

* I don't need any external libraries.

**Additional Notes:**

* The hole diameter should be 1mm, and should extrude beyond the base layer so that the hole is created properly.

Could you please create an OpenSCAD model based on these requirements? Let me know if you need any clarification.

[Assistant]
MusicBoxStripe.scad:
```
$fn=10*1;  //More polygons

//Defines whether a pre-defined song or the NoteString shall be used.
SongPicker = "Star-Spangled Banner"; // [Note-String,Star-Spangled Banner]

//Defines where to set the holes for the notes. You have the notes c1 to c3. The first two characters define the note (c1,d1,e1...b1,c2,...c3), the last two characters define the beat. You have 50 beats to use. After every note-definition place a |. One c1 on the third beat would result in this NoteString: "c103|". Don't forget the | at the end!
NoteString = "c101|d102|e103|f104|g105|a106|b107|c208|d209|e210|f211|g212|a213|b214|c315|";

//The layer-thickness must not be more then 0.4mm. Otherwise it won't fit into the music box! Also try to print at least two layers - so slice it with a layer height of 0.2mm.
LayerThickness = 0.4;

//Defines the width of the stripe (in mm).
StripeWidth = 42; // [30:50]

//Defines the length of the stripe. 15 beats need a length around 60mm. The full 50 beats would need 200mm.
StripeLength = 90;// [10:200]

//For fine-tuning only: defines how far the c1 is away from the left stripe-border (in mm).
MarginLeft = 5; // [2:10]

//For fine-tuning only: defines the distance between the beats.
BeatDistance = 3.5;

//For fine-tuning only: defines the distance between the beats.
ToneDistance = 2;

Start( );

module Start()
{
NoteString_AmericanAnthem = "a101|f103|d104|f106|d106|a108|e108|d210|d110|f113|f214|f114|e215|f115|d216|f116|f118|d118|g120|d120|a122|c122|";

if( SongPicker == "Star-Spangled Banner")
	BuildStripe(NoteString_AmericanAnthem);
else if (SongPicker == "Note-String")
	BuildStripe(NoteString);
}

module BuildStripe(NoteStringLocal){
	takte=search("|",NoteStringLocal,1000)[0];
	difference()
	{
		BuildBase();
		for(i=[0:len(takte)-1])
		{
			printNote(str(NoteStringLocal[takte[i]-2],NoteStringLocal[takte[i]-1]), str(NoteStringLocal[takte[i]-4],NoteStringLocal[takte[i]-3]));
		}
	}
}

module printNote(takt,note)
{
	//I did not find a way to convert the string "01" into the number 1.
	//So there is this ugly convertion, I'm sorry. ;)
	if (takt == "01")
		printNote2(1,note);
	else if (takt == "02")
		printNote2(2,note);
	else if (takt == "03")
		printNote2(3,note);
	else if (takt == "04")
		printNote2(4,note);
	else if (takt == "05")
		printNote2(5,note);
	else if (takt == "06")
		printNote2(6,note);
	else if (takt == "07")
		printNote2(7,note);
	else if (takt == "08")
		printNote2(8,note);
	else if (takt == "09")
		printNote2(9,note);
	else if (takt == "10")
		printNote2(10,note);
	else if (takt == "11")
		printNote2(11,note);
	else if (takt == "12")
		printNote2(12,note);
	else if (takt == "13")
		printNote2(13,note);
	else if (takt == "14")
		printNote2(14,note);
	else if (takt == "15")
		printNote2(15,note);
	else if (takt == "16")
		printNote2(16,note);
	else if (takt == "17")
		printNote2(17,note);
	else if (takt == "18")
		printNote2(18,note);
	else if (takt == "19")
		printNote2(19,note);
	else if (takt == "20")
		printNote2(20,note);
	else if (takt == "21")
		printNote2(21,note);
	else if (takt == "22")
		printNote2(22,note);
	else if (takt == "23")
		printNote2(23,note);
	else if (takt == "24")
		printNote2(24,note);
	else if (takt == "25")
		printNote2(25,note);
	else if (takt == "26")
		printNote2(26,note);
	else if (takt == "27")
		printNote2(27,note);
	else if (takt == "28")
		printNote2(28,note);
	else if (takt == "29")
		printNote2(29,note);
	else if (takt == "30")
		printNote2(30,note);
	else if (takt == "31")
		printNote2(31,note);
	else if (takt == "32")
		printNote2(32,note);
	else if (takt == "33")
		printNote2(33,note);
	else if (takt == "34")
		printNote2(34,note);
	else if (takt == "35")
		printNote2(35,note);
	else if (takt == "36")
		printNote2(36,note);
	else if (takt == "37")
		printNote2(37,note);
	else if (takt == "38")
		printNote2(38,note);
	else if (takt == "39")
		printNote2(39,note);
	else if (takt == "40")
		printNote2(40,note);
	else if (takt == "41")
		printNote2(41,note);
	else if (takt == "42")
		printNote2(42,note);
	else if (takt == "43")
		printNote2(43,note);
	else if (takt == "44")
		printNote2(44,note);
	else if (takt == "45")
		printNote2(45,note);
	else if (takt == "46")
		printNote2(46,note);
	else if (takt == "47")
		printNote2(47,note);
	else if (takt == "48")
		printNote2(48,note);
	else if (takt == "49")
		printNote2(49,note);
	else if (takt == "50")
		printNote2(50,note);
	else
		printNote2(10,note);
}

module printNote2(takt,note)
{
	if (note == "c1")
		MakeHole(takt,1);
	else if (note == "d1")
		MakeHole(takt,2);
	else if (note == "e1")
		MakeHole(takt,3);
	else if (note == "f1")
		MakeHole(takt,4);
	else if (note == "g1")
		MakeHole(takt,5);
	else if (note == "a1")
		MakeHole(takt,6);
	else if (note == "b1") //h
		MakeHole(takt,7);
	else if (note == "c2")
		MakeHole(takt,8);
	else if (note == "d2")
		MakeHole(takt,9);
	else if (note == "e2")
		MakeHole(takt,10);
	else if (note == "f2")
		MakeHole(takt,11);
	else if (note == "g2")
		MakeHole(takt,12);
	else if (note == "a2")
		MakeHole(takt,13);
	else if (note == "b2") //h
		MakeHole(takt,14);
	else if (note == "c3")
		MakeHole(takt,15);
}

module BuildBase(){
	cube([StripeWidth,StripeLength,LayerThickness]);
}

module MakeHole(beatNumber,pitchNumber){
	Y = MarginLeft + (beatNumber * BeatDistance);
	X = StripeWidth - MarginLeft - (pitchNumber * ToneDistance) + 1;

	translate([X,Y,-1]) cylinder(h=LayerThickness*20,r=1);
}
```


[User]
Okay, I'm looking to create a customizable bookbinding for either A5 or half-letter sized paper, and I need an OpenSCAD file to do this. The design is based on a model I found, but I want to make it fully parametric so I can easily adjust it for different paper thicknesses and potentially other sizes in the future.

Here's what I need:

**Overall Design:**

*   The binding should consist of two main parts: a "key" that locks the binding and a flexible back piece that holds the pages.
*   The binding should accommodate standard hole spacing of 80mm.
*   The design should include holes for the paper, with appropriate clearance for the pins and a way to lock the paper in place.
*  There should be space on the spine of the flexible back piece for a text label.

**Parametric Requirements:**

1.  **Paper Size:**
    *   I need a parameter, let's call it `paper_type`, to switch between A5 and Half Letter paper sizes. A5 is 148mm x 210mm and half letter is 140 x 216 mm, and the code should use the height of the paper in its design.
    * The `paper_type` parameter should automatically set the correct value for a variable that defines the paper's height. I think the original code used a variable called `a4m`.

2.  **Paper Thickness:**
    *   I need a parameter to define the thickness of the paper stack, which will determine the width of the spine. I'll call this parameter `paper_thickness_mm` .
    *   I need parameters, based on `paper_thickness_mm`, to set the width of both the axes and the flexible back (like the variables xsu, and lt in the example code) .

3.  **Text on the Spine:**
    *   I need a parameter to define the text string that is written on the spine. Let's call it `spine_text`.
    *   I need to be able to set the size and thickness of the text, and its vertical offset.
    *   I'd like to use the "Write.scad" library for text, so the design should work with that library, including the `h` and `t` parameters to control text size and thickness.

4.  **General Dimensions:**

    *   The overall length of the key and back piece should be determined based on the `a4m` variable.
    *   The positions of the holes should be relative to the center of the paper's height, and should remain 80mm apart.

5.  **Text Position**
     *  The text should be placed centrally on the spine, horizontally (between the edges of the spine), and offset vertically from the bottom edge of the spine piece.

6. **Hole Clearance**
    * The code should expose parameters to adjust the diameter of the holes in the binding to accommodate different types of locking mechanism.

**Libraries:**

*   The design should use the `Write.scad` library, but I don't need you to create the library file.

**Output:**

*   I need a single OpenSCAD file that incorporates all of these parametric features.

Can you generate an OpenSCAD file based on these requirements?

[Assistant]
bkbd.scad:
```
//Customizable Half Letter/A4 bookbinding
//by avalonn

// include write.scad by HarlanDMii
use<Write.scad>
include <write/Write.scad>

//	Paper size
// half letter=140 x 216 mm, A5=148 x 210 mm
a4m = 32.02;	// [32.02:A5,30:Half Letter]

//	sheets thickness (15 is about 100 sheets)
x_m = 15;	//	[15:45]

xsu=x_m-1.6;
lt=x_m-9.6;
lta=lt/2;

// text on the binding back - Max : 27 letters
message = "Volume I";

// first part : key, to lock the bookbinding
rotate([0,0,90])translate([-50,-50,0])
{
	difference()
	{
		cube([24,2*a4m+83.95,3]);
		// 1st hole
		translate([11.13,a4m,-1])cube([1.74,4.9,5]);
		translate([10.03,a4m,1.5])cube([3.94,3.85,2]);
		translate([10.03,a4m+4.85,-1])cube([3.94,3.75,5]);
		translate([10.03,a4m+4.85,1.5]) rotate([79,0,0]) cube([3.94,3.75,4]);
		// 2d hole
		translate([11.13,a4m+80.11,-1])cube([1.74,4.9,5]);
		translate([10.03,a4m+80.11,1.5])cube([3.94,3.85,2]);
		translate([10.03,a4m+4.85+80.11,-1])cube([3.94,3.75,5]);
		translate([10.03,a4m+4.85+80.11,1.5]) rotate([79,0,0]) cube([3.94,3.75,4]);
	}

// 2d part : flexible back
	translate([30,0,0])
	{

		difference()
		{
		cube([24,2*a4m+83.95,3]);
		translate([7.9,a4m,1.5])cube([8.2,3.85,2]);
		translate([10.03,a4m,-1])cube([3.95,3.85,5]);
		translate([7.9,a4m+80.11,1.5])cube([8.2,3.85,2]);
		translate([10.03,a4m+80.11,-1])cube([3.95,3.85,5]);
		}

		// curve part
		difference()
		{
		translate([24,0,0])cube([lt+6,2*a4m+83.95,1]);
		translate([24,-1,0.6]) rotate([0,-8,0]) cube([4,2*a4m+85.95,4]);
		translate([24+lt+6,-1,0.6]) rotate([0,-82,0]) cube([4,2*a4m+85.95,4]);
		translate([27,3,0.6]) cube([lt,2*a4m+77.95,4]);
		}

		difference()
		{
		translate([30+lt,0,0]) cube([24,2*a4m+83.95,0.6]);
		translate([40.03+lt,a4m,-1]) cube([3.85,3.95,2]);
		translate([40.03+lt,a4m+80.11,-1]) cube([3.85,3.95,2]);
		}
		// text on the binding back
		union() {
		translate([29.5+lta,4.5,.5]) rotate([0,0,90]) write(message,h=5,t=.6,space=1.5);
		}
	}
}
// axes
rotate([0,0,90])translate([-50,-100,0])
{
		difference()
		{
		cube([x_m,8,3.74]);
		translate([-.01,-.01,-.01])cube([xsu,2.14,4]);
		translate([-.01,5.87,-.01])cube([xsu,2.14,4]);
		translate([1.5,2.09,-.01])cube([1.73,1.1,4]);
		translate([1.5,4.87,-.01])cube([1.73,1.01,4]);
		}

		translate([0,20,0])difference()
		{
		cube([x_m,8,3.74]);
		translate([-.01,-.01,-.01])cube([xsu,2.14,4]);
		translate([-.01,5.87,-.01])cube([xsu,2.14,4]);
		translate([1.5,2.09,-.01])cube([1.73,1.1,4]);
		translate([1.5,4.87,-.01])cube([1.73,1.01,4]);
		}
}

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

 By Harlan Martin
 harlan@sutlog.com
 January 2012

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

*/

	pi=3.1415926535897932384626433832795028841971693993751058209;
	pi2=pi*2;

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

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

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

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

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

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

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

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

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

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

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

}

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

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

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

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

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

module write(word){

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

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

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

```


[User]
Okay, I need a parametric design for a sand scoop, something like a small shovel. I've got a basic idea, but I want to make sure it's easy to customize.

Here are the key features I need:

*   **Handle:** The handle should be a cylinder, and I need to be able to adjust its length (`handle`) and radius (`hrad`).
*   **Scoop:** The scoop part should be based on a cylinder as well. I need to control the scoop's radius (`srad`) and length (`scoop`). The scoop needs to be hollow, so I need a parameter for the wall thickness (`wall`).
*   **Truncation:** I want the option to truncate the back and sides of the scoop to give it more of a shovel shape. I need a boolean parameter `bpt` where "yes" truncates and "no" leaves it as a cylinder. When truncated, the sides of the scooped are flattened by a distance of `srad` / 2, and extend into the part a distance of `2*(srad-wall)` if `bpt` is yes, and a distance of `srad - wall` if `bpt` is no. The part should extend along the length of the scoop based on a value of `scoop`.
*   **Scoop Angle:** I also need a way to adjust how much the scoop is angled relative to the handle. This should be an angle parameter `grade`, which controls the angle of a cut through the scoop. The angle of this cut should always be from behind the scoop, so should always cut down and forwards (positive on the x axis in the code). The code should work from angles of 35 degrees to 65 degrees.
*   **Skew:** I'd also like to be able to skew the scoop a bit rotationally, along the handle axis, so a parameter `skew` would be ideal.
*   **Handle Text:** It would be great if I could add some text to the handle. I'd need a parameter for the text string (`text`), and a way to control the font size (`asize`) of the text.
*   **Libraries:** Finally, I'd like to use the `write` library from the write.scad file to render the text on the cylinder, so that will need to be included. The handle text should be on the handle so that it's oriented so the text is readable when you are holding the handle upright.

To summarize, I'd like to be able to control these parameters: `handle`, `hrad`, `srad`, `scoop`, `wall`, `bpt`, `grade`, `skew`, `text`, and `asize`.

Could you generate the OpenSCAD code for this?

[Assistant]
scoop_nomult.scad:
```
// Customizable Parametric sand scoop
// Daniel M. Taub March 8 2013

include<write/Write.scad>
//use<write.scad>

// Length of the handle
handle = 80; // [20:200]

// Radius of the handle
hrad = 20; // [10:30]

// Radius of the scoop
srad =60; // [20:60]

// Length of scoop
scoop = 60; // [60:200]

// Scoop wall thickness
wall = 2; // [2:10]

// point on spade
//walltaper = 5; // [1:5]

// truncate back and sides?
bpt = "yes" ; //[yes,no]

//grade on spade
grade =35; // [35:light,45:medium,55:hard,65:steep]

//rotational skew
skew = 0; // [0:10]

// text for handle
text = "This is a handle";

// font size
asize=5; //[1:32]

tsize=asize/4;

istaper = bpt == "yes" ? 2 : 1;

rotate([0,90,0]){
  cylinder(h=handle,r=hrad);
  writecylinder(text,[0,0,0],hrad,handle,rotate=-90,west=90,h=5*tsize,t=tsize);
}
translate([handle,0,0])sphere(r=hrad);

translate([-scoop/2,0,srad-hrad])
  rotate([0,90,0])
    difference(){
      cylinder(h=scoop,r=srad,center=true);
      translate([-wall,0,-wall])
        union(){
          cylinder(h=scoop,r=srad-wall,center=true);
          translate([-srad/2,0,0])cube([srad,2*istaper*(srad-wall),scoop*istaper],true);
        }
     translate([sin(grade)*(srad+scoop)/2,0,wall*2-scoop]){
        rotate([0,-grade,0])cube([scoop/2+srad/2,scoop*2+srad*2,scoop*4],true);

      }

    }
```


[User]
Okay, I'd like to create a parametric 3D model of the RubyMotion logo, specifically the upper part. I'm looking for an OpenSCAD file that will let me adjust the overall size of the logo, and the depth of the engraved "A" symbol.

Here's the breakdown of the design I have in mind:

1.  **Base Shape:** The base should be a rounded cube or a "pillow" shape. Think of a cube with rounded edges. The size of this cube, both width and height/depth, should be controllable with a variable. Let's call that variable `size`. The overall height of this pillow is a smaller fraction of that size, perhaps 1/10. The radius of the rounding on the cube's edges should also be a function of the size, maybe also 1/10.
2.  **Engraved "A":** On the top face of the rounded cube, we'll have an "A" symbol engraved. This "A" is made up of three bars.
    *   The first bar is angled up to the right, at about 60 degrees from horizontal, located toward the left of the logo. Its length should be a fraction of `size`.
    *   The second bar is angled up to the left, at approximately 120 degrees from horizontal, located towards the right of the logo. This bar is also a fraction of `size`.
    *   The third bar is horizontal, placed near the middle of the other two, and it should be a shorter length.
    *   All three bars should have the same thickness, which can be derived from the overall size.
    *   The depth of the engraving should be controlled with another variable, let’s call that `engrave_depth`.
3.  **Parametric Variables:** I need at least two primary customizable variables:
    *   `size`: This controls the overall dimensions of the rounded cube (width and height).
    *   `engrave_depth`: This controls the depth at which the "A" is engraved into the base.

I don't need it to be a perfect replica, but as close as possible to the example.

I'd like the final result to be an OpenSCAD file that makes it easy for me to adjust these two variables. The file should be well commented and structured logically. It should use only basic OpenSCAD primitives; I don't want to use any external libraries for this one.

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

// edge length (width/height)
size = 80;

// for the "A" character
engrave_depth = .8;

//CUSTOMIZER VARIABLES END

height = size/10;
radius = size/10;
outer_size = size + 2*radius;
engrave_thickness = outer_size / 19.2;

l_a = outer_size/3.25;
l_b = outer_size/2.65;
l_c = outer_size/2.375;

a_a = 59.5 * 1;
a_b = 122 * 1;
a_c = 0 * 1;

difference() {
    color("lightgray") translate([radius,radius,-height]) difference() {
        // create a rounded cube
        translate([0,0,height]) {
            hull() {
                sphere(r=radius);
                translate([size,0,0]) sphere(r=radius);
                translate([size,size,0]) sphere(r=radius);
                translate([0,size,0]) sphere(r=radius);
            }
        }

        // cut away the lower half
        translate([-radius,-radius,0]) cube([size+radius*2,size+radius*2,height]);
    }

    color("gray") union() {
        // the three bars representing the "A"
        translate([outer_size*0.335,outer_size*0.37,height-engrave_depth])
            rotate([0,0,a_a])
                cube([l_a, engrave_thickness, engrave_depth]);

        translate([outer_size*0.71,outer_size*0.39,height-engrave_depth])
            rotate([0,0,a_b])
                cube([l_b, engrave_thickness, engrave_depth]);

        translate([(outer_size-l_c)/2,outer_size*0.49,height-engrave_depth])
            rotate([0,0,a_c])
                cube([l_c, engrave_thickness, engrave_depth]);

    }
}
```


[User]
Okay, I'd like to design a customizable magic wand, building off of the concept I've already got, but I need it to be much more flexible. I've been using the attached SCAD file, but I want to add more options.

Here's what I want in the final design:

**Core Structure:**

*   **Wand Center:** The main body of the wand should be a cylinder with a customizable length. The code I have right now uses `wand_center`, but I need to be able to adjust its diameter as well. I'd like to refer to diameter as `wand_diameter`.
*   **Hollow Core:** It should have a hollow core through the length of the wand so I can add a dowel or something to increase rigidity. I should be able to control the diameter of that core, which will be referred to as `core_diameter`. This `core_diameter` should be smaller than the `wand_diameter`.
*   **Material and Fit:** I'd like to control the tolerances via a `tolerance` variable, which means that when the `core_diameter` is used for subtraction, it should add the `tolerance` value.
*   **Taper Option:** I'd like an option to taper the main cylinder of the wand. Tapering should start at the base and go up to the tip. This taper should be defined by `taper_amount` with the base diameter remaining `wand_diameter`, and the tip diameter being the result of the taper. If `taper_amount` is zero, it should be a regular cylinder. If its not, it should use a `linear_extrude` function (or equivalent). The taper should begin at the beginning of the `wand_center` section.

**Wand Tips:**

*   **Dual Tips:** The wand should have two tips, attached on opposite sides. Each tip should be identical, but should be positioned symmetrically to each other from the center of the main wand cylinder.
*   **Tip Length:** I want to control the length of each tip with `tip_length`.
*  **Tip Diameter:** I want to control the widest diameter of the tip, referred to as `tip_diameter`.
*   **Tip Inner Diameter:** The tip should have an inner diameter for mounting the wand. This inner diameter should be referred to as `tip_inner_diameter` and I want to be able to control this. The tips should be attached with a dowel hole. The dowel hole should be controlled by the `dowel_diameter` variable. There should be an additional `dowel_length` variable to control how much the `dowel_diameter` goes through the tip.
*  **Tip Angled:** The tips in my example are angled. I want to be able to control that angle and make it zero if I prefer. I should be able to control that angle with a `tip_angle` variable. The `tip_angle` variable would also control how many of these angled portions there are (e.g. 120 degrees would create 3 segments)

**Overall:**

*   **Parametric Design:** All the dimensions mentioned should be controlled by variables to easily customize the design.
*   **Modular Design:** I'd like it to be modular if possible, to make it easy to understand or modify later.
*   **Units:** All measurements should be in millimeters.

**Libraries:**

*   I'm not using any libraries right now, but feel free to add any that would be helpful!

Could you create a parametric OpenSCAD file based on these requirements? Thanks!

[Assistant]
MagicWandCmplteCstmizd.scad:
```

////////// Magic Wand //////////////////////
////////////by: Mario The Magician////////////////////
/////////////www.mariothemagician.com/////////////////////

//////////Magic Wand Tips///////////////////////
tip_length = 50; // [15:50]
///////////////////////////////////////////////

//////////////////Center of Wand/////////////////
wand_center = 230; // [30:230]
////////////////////////////////////////////////

//Magic Wand tip
translate([0,32.5,0])
rotate([90,0,0]) {
rotate([0,0,22.5]) {

union() {
cylinder(r=6,tip_length,$fn=8); // outer end
translate([0,0,tip_length]) // keeps inner dowel attached while sizing
cylinder(r=3,h=15,$fn=50); // inner end

      }
translate([20,-8,0])
union() {
cylinder(r=6,tip_length,$fn=8); // outer end
translate([0,0,tip_length]) // keeps inner dowel attached while sizing
cylinder(r=3,h=15,$fn=50); // inner end

      }

   }

}

translate([0,50,0])
translate([-115,0,0])
rotate([0,90,0])

difference() {
translate([0,0,10])
cylinder(r=6,wand_center,$fn=8); // Center of Wand
cylinder(r=3.5,h=250,$fn=50); // inner hole

}

```