[User]
Okay, I need help designing a parametric clamp for pipes or tubes. I've got a basic design idea, and I want to make it more flexible using parameters.

The basic idea is a C-shaped clamp that snaps onto a pipe. One side of the C has a lip that makes the opening smaller than the pipe, so you have to click it into place. I want to be able to control the following aspects:

*   **Pipe Diameter:** This is the diameter of the pipe the clamp is intended to hold.
*   **Clamp Thickness:** This is the thickness of the material used to make the clamp.
*   **Clamp Height:** The overall height of the clamp.
*   **Opening Angle:** The angle of the opening in the C shape. This controls how much force is needed to click the pipe in, as well as how securely it will hold it.
*   **Screw Diameter:** The diameter of the screw that will hold the clamp shut.
*   **Screw Head Diameter:** The diameter of the screw head.

The clamp will be constructed with the following general shapes:
1.  A "C" shape formed by the union of a rectangle and a circle.
2.  A portion is removed from the "C" to create the opening.
3.  Small circles are added to each end of the C to make it easier to screw the parts together.
4.  A screw hole is then created through the center of the assembled part.
5.  A screw head recess is then created around the screw hole.

I've tried to sketch out a basic OpenSCAD design, but I'm struggling to make it truly parametric and robust. Ideally, the code should be able to handle different pipe sizes and clamp thicknesses without breaking. The small semicircles on the clamp arms should also be parametric. I'm not super familiar with advanced OpenSCAD techniques but I'd like the design to be easy to modify.

Could you help me create a parametric OpenSCAD file for this clamp? I'd also like to be able to specify the offset of the screw from the center of the clamp.

[Assistant]
click_and_clamp.scad:
```

// click & clamp

pipe_diameter=50;
pipe_radius=pipe_diameter/2;

clamp_thickness=4;

clamp_radius=pipe_radius+clamp_thickness;

screw_diameter=4;
screw_radius=screw_diameter/2;

screw_head_diameter=7;
screw_head_radius=screw_head_diameter/2;

clamp_height=12;
opening_angle=110;

difference(){
	linear_extrude(height=clamp_height){
		difference(){
			union(){
				translate([-clamp_radius,-clamp_radius-clamp_thickness,0])
					square([2*clamp_radius,clamp_radius+clamp_thickness]);
				circle(r=clamp_radius);
			}
			circle(r=pipe_radius);
			polygon(points=[	[0,0],
								[clamp_radius*cos((180-opening_angle)/2),clamp_radius*sin((180-opening_angle)/2)],
								[clamp_radius*cos((180-opening_angle)/2),clamp_radius],
								[clamp_radius*cos(90+opening_angle/2),clamp_radius],
								[clamp_radius*cos(90+opening_angle/2),clamp_radius*sin(90+opening_angle/2)]],
					path=[0,1,2,3,4]);
		}
		rotate([0,0,(180-opening_angle)/2]) translate([pipe_radius+1/2*clamp_thickness,0,0]) circle(r=clamp_thickness/2);
		rotate([0,0,90+opening_angle/2]) translate([pipe_radius+1/2*clamp_thickness,0,0]) circle(r=clamp_thickness/2);
	}
translate([0,0,clamp_height/2]) rotate([90,0,0]) cylinder(r=screw_radius,h=clamp_radius*2);
translate([0,0,clamp_height/2]) rotate([90,0,0]) cylinder(r=screw_head_radius,h=clamp_radius);
}

```


[User]
Okay, I'd like to have a parametric OpenSCAD model of a pirate ship, but one that's a bit more detailed and customizable than the one I have now.

The existing model, which I'm providing (pirateship.2.scad), uses a `shipscale` variable to generally control the size, along with some manual scaling factors throughout the code, and a `thickness` variable for thin parts. I like that approach, but I want to make it more flexible.  I also want to maintain the overall style, with the curved hull and the simple sail design. I am using no libraries at this point.

Here's what I'm thinking for customization parameters:

*   **Overall Size:**  I'd like a primary parameter, maybe call it `ship_length`, that controls the overall length of the ship. All other dimensions should scale proportionally to this parameter, where possible, to maintain the general proportions of the ship.

*   **Hull:**
    *   `hull_width_ratio`: A parameter to control the width of the hull relative to `ship_length`.
    *   `hull_height_ratio`: A parameter to control the height of the hull relative to `ship_length`.
    *   `hull_curve_ratio`:  A parameter to exaggerate or flatten the curvature of the hull.
    *   `hull_deck_height_ratio`: control the height of the deck along the hull relative to `ship_length`.

*   **Sails:**
    *   `sail_height_ratio`: Controls the overall height of the sails relative to `ship_length`.
    *   `mast_thickness_ratio`: Controls the thickness of the masts relative to the `ship_length`.
    *   `sail_count`: Controls the number of sails. This would affect the number of masts and sails.

*   **Bowsprit:**
    *   `bowsprit_length_ratio`:  Controls the length of the bowsprit relative to `ship_length`.
    *    `bowsprit_thickness_ratio`: Controls the thickness of the bowsprit.

*   **Rudder:**
    *   `rudder_height_ratio`:  Controls the height of the rudder relative to `ship_length`.
    *    `rudder_width_ratio`: Controls the width of the rudder relative to `ship_length`.

*   **Detail Level:**
   *   `detail_level`: A parameter to control the number of faces for the curved shapes. This would be similar to the existing `fn` variable, but I would prefer to use a higher value by default.

*  **General Thickness:**
    *   `base_thickness_ratio`: Controls the base thickness of all the thinner components of the model relative to `ship_length`.

I'm hoping for a design where, for example, setting `hull_width_ratio` to a higher number will make the hull wider without losing its overall style, and changing `sail_count` will automatically add or remove the correct number of masts and sails.

Could you provide me with an updated OpenSCAD file that implements these parameters and maintains the same overall aesthetic as the provided file?

[Assistant]
pirateship.2.scad:
```
//A remix of OpenSCAD Pirate Ship
//by MakerBlock, published Oct 24, 2011
//http://www.thingiverse.com/thing:12856
//A few tweaks for use with customizer by Ari M. Diacou on 8-12-2013

//The thickness of the thin structures
thickness=0.6;
//Approximate size of the ship
shipscale=50;
//What level of curviness is acceptable?
fn=64;

th=thickness;

ship();

module ship(size=shipscale)
	{
	sails(size);
	hull(size);
	rudder(size);
	bowsprit(size);
	//Uncomment the next line to see cube(size) for comparasion:
	//% translate([0,0,size/4]) cube(size, center=true);
	}

module rudder(rh)
	{
	intersection()
		{
		translate([0,rh*-25/64,rh*-10/64]) cube([th,rh*5/32,rh*13/64], center=true);
		translate([0,rh*-33/64,rh*-1/64]) rotate([0,90,0]) cylinder(r=rh*8/32,h=th,$fn=fn);
		}
	}

module bowsprit(bs)
	{
	translate([0,bs*37/64,bs*3/64]) rotate([290,0,0]) intersection()
		{
		scale([0.5,1,1]) cylinder(r1=bs*8/64,r2=th,h=bs/3,$fn=fn/4,center=true);
		translate([0,bs/2,0]) cube(bs,center=true);
		}
	}

module hull(hl)
	{
	difference()
		{
		translate([0,hl*-1/32,-hl*3/32]) union()
			{
			scale([0.7,2.1,1]) translate([0,0,-hl/12])
				cylinder(r1=hl/6, r2=hl/4, h=hl/6, $fn=fn,center=true);

			difference()
				{
				scale([0.7,2.1,1]) translate([0,0,hl/12])
					cylinder(r=hl/4, h=hl/6, $fn=fn,center=true);
				difference()
					{
					scale([0.7,2.1,1]) translate([0,0,hl/12+th/4])
						cylinder(r=(hl/4) -th, h=hl/6, $fn=fn,center=true);
					translate([0,-hl*13/32,hl/32]) cube([hl,hl/4,hl/4],center=true);
					translate([0,-hl*12/32,-hl*2/32]) cube([hl,hl/4,hl/4],center=true);
					translate([0,hl*14/32,-hl*2/32]) cube([hl,hl/4,hl/4],center=true);
					translate([0,-hl*15/32,hl/32]) cube([hl,hl/8,hl/2],center=true);
					}
				translate([0,hl/4.5,hl/1.7]) cube(hl, center=true);
				translate([0,hl*1/32,hl*9/32]) cube(hl/2, center=true);
				}
			}
		translate([0,-hl*17/32,hl/32]) cube([hl,hl/8,hl/2],center=true);
		}
	}

module sails(mh)
	{
	translate([0,0,mh*-4/62])
		{
		translate([0,0,mh*28/32]) cylinder(r1=mh*2/64,r2=mh*2.5/64,h=mh*3/64,$fn=fn/4,center=true);
		translate([0,0,mh*53/64]) cylinder(r1=th/2,r2=mh*2/64,h=mh*3/64,$fn=fn/4,center=true);
		translate([0,mh/4,0]) rigging(mh*5/6);
		translate([0,0,0]) rigging(mh);
		translate([0,-mh/5,0]) rigging(mh*4/6);
		translate([0,mh*15/32,mh*8/32]) rotate([205,0,0]) scale([1,1,2]) rotate([0,90,0])
			cylinder(r=mh/5,h=th,$fn=3,center=true);
		translate([0,mh*-1/32,-mh*1/32]) cube([th,mh*14/16,mh/8],center=true);
		}
	}

module rigging(mh=30)
	{
	cylinder(r=th*2/3,h=mh*11/12,$fn=fn/4);
	rotate([0,-90,0])
	translate([mh/2,0,0]) union()
		{
		translate([0,-mh/64,0]) intersection()
			{
			difference()
				{
				scale([1,0.67,1]) translate([-mh/6,0,0])
					cylinder(r=mh/1.5,h=th,$fn=3,center=true);
				translate([0,-mh*5/6,0]) rotate([0,0,27.5]) scale([2,1,1])
					cylinder(r=mh/1.5,h=th+1,$fn=fn,center=true);
				}
			translate([0,-mh*1/1.9,0]) rotate([0,0,-27.5]) scale([2,1,1])
				cylinder(r=mh/1.5,h=th+1,$fn=fn,center=true);
			}
		translate([0,mh/16,0]) mast(mh);
		}
	}

module mast(mh=30)
	{
	translate([-mh/4,0,0]) sail(mh/4);
	translate([mh/8,-th*1.5,0]) sail(mh/8);
	translate([mh*5/16,-th*2,0]) sail(mh/16);
	}

module sail(size)
	{
	intersection()
		{
		scale([1.5,1,1]) translate([0,-size,0]) difference()
			{
			cylinder(r=size, h=size*5/2,$fn=fn,center=true);
			cylinder(r=size-th, h=size*5/2+1,$fn=fn,center=true);
			}
		cube(size*2,center=true);
	*	translate([size*2,0,0]) scale([2,1,1])
			rotate([0,45,0]) cube(size*3,center=true);
		translate([size/3,0,0]) scale([2,1,1]) rotate([90,0,0])
			cylinder(r=size*1,h=size*2,$fn=fn,center=true);
		}
	}

```


[User]
Okay, I'm looking to design a wall-mountable dock for iPhones, and I'd like it to be customizable. I have a basic SCAD file that I've been working on, but I need to make it more flexible and user-friendly.

Here's what I'm hoping to achieve:

**Core Functionality:**

*   **Multiple Phone Support:** The dock needs to be able to accommodate multiple iPhones side-by-side. The user should be able to choose how many docks they want (1, 2, or 3) and which iPhone model/case is used in each dock. If the user only needs one, it would be nice for the code to omit the others, instead of leaving them floating unused.
*   **Predefined Phone Profiles:** I'd like to have some predefined phone/case dimensions for common models. My current file has profiles for the iPhone 5 (bare and in a couple of cases) and the iPhone 4/4s (bare and in cases). I may add more to this list later.
*   **Custom Phone Dimensions:** Users should also be able to specify custom dimensions for their particular phone/case combinations. This will allow users to create docks even when a predefined profile is not available.

**Key Parameters:**

*   **Phone Selection:** A dropdown list for each docking position (1, 2, and 3) to select a predefined phone/case, or "custom". If a given position is not used, it should be able to be set to "none".
*   **Wall Thickness:** A parameter to control the wall thickness of the dock.
*   **Rounding Radius:** A parameter to control the rounding of the dock's edges.
*   **Screw Hole Dimensions:** Parameters for the screw hole height, diameter, countersink size, and countersink depth, so it can be mounted to the wall.
*   **Custom Dimensions:** If the user selects "custom" for a given dock position, they'll need to specify the phone's width, depth, connector type ("Lightning" or "Dock"), and how far the connector body should stick out of the bottom of the dock.

**Specific Design Considerations:**

*   **Connector Cutouts:** The code should create cutouts for either a Lightning connector or the older 30-pin dock connector, as appropriate for the selected phone/case.
*   **Button Cutouts:** A cutout should be made for the phone's button on the side. The size of this cutout should be parametric.
*   **Wall Mounting:** The dock should have screw holes for wall mounting.
*   **No-Overlap Construction:** The docks should be placed beside one another without overlapping, taking the wall thickness of each dock into account.

**Desired Code Structure:**

*   I would like the code to use modules to organize the dock structure.
*   I'd like it to be fully parametric, so that all parameters can be easily adjusted.
*   I'd prefer the code to be easily readable and well commented.

I'm thinking it would be useful to make use of some library functions for the rounded edges, so I think the BOSL library would be a good place to start.

My current code is below for reference:

```
/* [Phones] */

Phone_1=0; // [0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]
Phone_2=-1; // [-1:None, 0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]
Phone_3=-1; // [-1:None, 0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]

// Dock Wall Thickness

/* [Advanced Settings] */
wall_thickness=4; //[1:6]
rounding_radius=2;

// Screw hole height
screw_height=20; //[0:35]
// Screw Diameter
screw_diameter=4; //[1:6]
// Countersink Size
screw_countersink_size=3;
//  Countersink Depth
screw_countersink_depth=3;

actual_depth=20.25;
/* [Custom Dimensions] */
/* Custom 1 Width */
Custom1_width=59.4;
/* Custom 1 Depth */
Custom1_depth=8.25;
//What kind of connector does your phone have?
Custom1_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom1_stickout=0;

/* Custom 2 Width */
Custom2_width=59.4;
/* Custom 2 Depth */
Custom2_depth=8.25;
//What kind of connector does your phone have?
Custom2_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom2_stickout=0;

/* Custom 3 Width */
Custom3_width=59.4;
/* Custom 3 Depth */
Custom3_depth=8.25;
//What kind of connector does your phone have?
Custom3_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom3_stickout=0;

/* [hidden] */
custom1=[Custom1_width, Custom1_depth, 40, Custom1_connector, Custom1_stickout];
custom2=[Custom2_width, Custom2_depth, 40, Custom2_connector, Custom2_stickout];
custom3=[Custom3_width, Custom3_depth, 40, Custom3_connector, Custom3_stickout];

button_cutout_radius=8;
button_height=10;
circle_precision=1;
usb_connector_height=20;

dock_connector_thickness=6.0;
dock_connector_width=27;
dock_connector_height=9;

lightning_connector_height=12;
lightning_connector_width=8.25;
lightning_connector_thickness=5.5;

/* Turn of rounding for fast preview */
preview_tab="none";

extra=0.1;
overlap=0.05;
dimensions=[ /* [phone_width, phone_depth, pocket_height, connector, connector_stickout] */
	/* iphone 5 */
	[59.4,8.25,40,"lightning",0],
	/* iphone 5 in belkin case */
	[64.25,10.75,40,"lightning",2.5],
	/* iPhone 5 in incipio Dual Pro */
	[65.25, 13.5, 40, "lightning", 0],
     /* iphone 4/4s */
	[59.25, 9.75, 40, "dock", 0],
     /*  iphone 4/4s in elago S4 Glide */
     [63.5, 12.25, 40, "dock", 0],
	/*  iphone 4/4s in ifrogz */
     [61.5, 12, 40, "dock", 0]
	];

if (Phone_1==99)
	iphone_dock(custom1,rounding=rounding_radius);
else
	iphone_dock(dimensions[Phone_1], rounding=rounding_radius);
if (Phone_2 != -1) {
	translate([(Phone_1==99 ? custom1[0] : dimensions[Phone_1][0])+wall_thickness*2-overlap,0,0]) 	{
		if (Phone_2==99 )
			iphone_dock(custom2, rounding=rounding_radius);
            else
			iphone_dock(dimensions[Phone_2], rounding=rounding_radius);
		if (Phone_3 != -1)
			translate([(Phone_2==99 ? custom2[0] : dimensions[Phone_2][0])+wall_thickness*2-overlap,0,0])
				if (Phone_3==99)
					iphone_dock(custom3, rounding=rounding_radius);
				else
					iphone_dock(dimensions[phone3], rounding=rounding_radius);
	}
}

module iphone_dock(setup=[59.4, 8.25, 40, "lightning", 0], rounding=false) {
	phone_width=setup[0];
	phone_depth=setup[1];
	pocket_height=setup[2];
	connector=setup[3];
	connector_stickout=setup[4];

	case_width=phone_width+wall_thickness*2;
	case_depth=phone_depth+wall_thickness*2;
	case_height=pocket_height+wall_thickness+dock_connector_height;

	translate([case_width/2,case_depth/2,0]) difference() {
		if (rounding!=0 && preview_tab == "none") {
			minkowski() {
				difference() {
					translate([-case_width/2,-case_depth/2,0]) rotate([90,0,90])
						linear_extrude(height=case_width)
							polygon(points=[[rounding_radius,rounding_radius],[actual_depth-rounding_radius,rounding_radius],[actual_depth-rounding_radius,case_height-rounding_radius*2.5],[rounding_radius,case_height-actual_depth-rounding_radius/2]]);
						translate([0,0,pocket_height/2+wall_thickness+dock_connector_height-rounding_radius])
							cube([phone_width+rounding_radius*2,phone_depth+rounding_radius*2,pocket_height+rounding_radius], center=true);
						translate([0,-case_depth/2+wall_thickness/2,wall_thickness+dock_connector_height+button_height])
							button_cutout();
					}
				sphere(rounding_radius, $fs=circle_precision);
			}
		} else {
			difference() {
				translate([-case_width/2,-case_depth/2,0]) rotate([90,0,90])
					linear_extrude(height=case_width)
						polygon(points=[[0,0],[actual_depth,0],[actual_depth,case_height],[0,case_height-actual_depth]]);
						translate([0,0,pocket_height/2+wall_thickness+dock_connector_height])
							cube([phone_width,phone_depth,pocket_height], center=true);
						translate([0,-case_depth/2+wall_thickness/2,wall_thickness+dock_connector_height+button_height])
							button_cutout();
			}
		}
		if (connector=="dock") {
			usb_connector(h=wall_thickness+dock_connector_height);
			translate([0,0,wall_thickness+connector_stickout]) dock_connector();
		} else if (connector=="lightning") {
			translate([0,0,wall_thickness-(lightning_connector_height-dock_connector_height)+connector_stickout])
				lightning_cutout();
		}
		translate([0,case_depth/2,wall_thickness+dock_connector_height+screw_height])
			rotate([90,0,0]) {
				translate([0,0,-wall_thickness]) cylinder(r=screw_diameter/2, h=wall_thickness*2, $fs=circle_precision);
					translate([0,0,wall_thickness-screw_countersink_depth])
						cylinder(r1=screw_diameter/2, r2=screw_diameter/2+screw_countersink_size, h=screw_countersink_depth+0.01);
		}
	}
}

module dock_connector() {
		translate([0,0,dock_connector_height/2]) union() {
			cube([dock_connector_width-dock_connector_thickness,dock_connector_thickness,dock_connector_height], center=true);
			for (offset=[-1,1]) translate([offset*(dock_connector_width/2-dock_connector_thickness/2),0,0]) cylinder(r=dock_connector_thickness/2, h=dock_connector_height, $fs=circle_precision, center=true);
		}
}

module usb_connector(height=20) {
	connector_thickness=8.0;
	connector_width=15.0;
	rounding=1.6;

	translate([0,0,height/2]) {
		cube([connector_width-rounding*2, connector_thickness, height], center=true);
		cube([connector_width, connector_thickness-rounding*2, height], center=true);
		for (yoffset=[-1,1]) for (xoffset=[-1,1]) translate([xoffset*(connector_width/2-rounding),yoffset*(connector_thickness/2-rounding),0]) cylinder(r=rounding, h=height, $fs=circle_precision, center=true);
	}
}

module lightning_connector() {
	thickness=lightning_connector_thickness;
	width=lightning_connector_width;
	height=lightning_connector_height;
	cord=4;
	translate([0,0,height/2])
		cube([width-thickness, thickness, height], center=true);
	for (n=[-1,1])
		translate([n*(width/2-thickness/2),0,0])
			cylinder(r=thickness/2, h=height);
	translate([0,0,-25])
		cylinder(r=cord/2,h=26);
}

module lightning_cutout(height=30) {
	width=lightning_connector_width;
	thickness=lightning_connector_thickness;
	lightning_connector();
	translate([0,0,lightning_connector_height-height])
		rotate([0,0,90]) {
			translate([0,0,height/2])
				cube([width-thickness, thickness, height], center=true);
			for (n=[-1,1])
				translate([n*(width/2-thickness/2),0,0])
					cylinder(r=thickness/2, h=height);
	}
}

module button_cutout() {
		translate([0,wall_thickness,0])
			rotate([90,0,0])
				cylinder(r=button_cutout_radius+rounding_radius, h=wall_thickness*2, $fs=circle_precision);
		translate([-button_cutout_radius-rounding_radius,-wall_thickness,0])
			cube([button_cutout_radius*2+rounding_radius*2, wall_thickness*2, 100]);

}
module button_cutout_rounding() {
	button_cutout_height=case_height-case_depth-button_height-wall_thickness-dock_connector_height;
	union() {
		rotate([90,0,0]) difference() {
			rotate_extrude(convexity=4, $fn=30)
				translate([button_cutout_radius+rounding_radius,0,0])
					circle(r=rounding_radius, $fs=circle_precision);
			translate([-button_cutout_radius-rounding_radius*2,0,-rounding_radius])
				cube([button_cutout_radius*2+rounding_radius*4,button_cutout_radius*2+rounding_radius*2,rounding_radius*2]);
		}
		for (xloc=[-button_cutout_radius-rounding_radius,button_cutout_radius+rounding_radius]) translate([xloc,0,0]) {
			cylinder(r=rounding_radius, h=button_cutout_height, $fs=circle_precision);
			translate([0,0,button_cutout_height]) sphere(r=rounding_radius, $fs=circle_precision);
		}

	}
}
```

I am looking forward to seeing what you can do!

[Assistant]
iphone_dock_customizer.scad:
```
/* [Phones] */

Phone_1=0; // [0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]
Phone_2=-1; // [-1:None, 0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]
Phone_3=-1; // [-1:None, 0:iPhone 5, 1:iPhone 5 in Belkin Grip Candy Sheer, 2: iPhone 5 in Incipio Dual Pro, 3:iPhone 4/4s, 4:iPhone 4/4s in elago S4 Glide, 5:iPhone 4/4s in iFrogz Luxe Lean, 99:Custom]

// Dock Wall Thickness

/* [Advanced Settings] */
wall_thickness=4; //[1:6]
rounding_radius=2;

// Screw hole height
screw_height=20; //[0:35]
// Screw Diameter
screw_diameter=4; //[1:6]
// Countersink Size
screw_countersink_size=3;
//  Countersink Depth
screw_countersink_depth=3;

actual_depth=20.25;
/* [Custom Dimensions] */
/* Custom 1 Width */
Custom1_width=59.4;
/* Custom 1 Depth */
Custom1_depth=8.25;
//What kind of connector does your phone have?
Custom1_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom1_stickout=0;

/* Custom 2 Width */
Custom2_width=59.4;
/* Custom 2 Depth */
Custom2_depth=8.25;
//What kind of connector does your phone have?
Custom2_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom2_stickout=0;

/* Custom 3 Width */
Custom3_width=59.4;
/* Custom 3 Depth */
Custom3_depth=8.25;
//What kind of connector does your phone have?
Custom3_connector="Lightning"; /* ["Lightning", "Dock"] */
//How far should the connector body stick out of the bottom of the dock?
Custom3_stickout=0;

/* [hidden] */
custom1=[Custom1_width, Custom1_depth, 40, Custom1_connector, Custom1_stickout];
custom2=[Custom2_width, Custom2_depth, 40, Custom2_connector, Custom2_stickout];
custom3=[Custom3_width, Custom3_depth, 40, Custom3_connector, Custom3_stickout];

button_cutout_radius=8;
button_height=10;
circle_precision=1;
usb_connector_height=20;

dock_connector_thickness=6.0;
dock_connector_width=27;
dock_connector_height=9;

lightning_connector_height=12;
lightning_connector_width=8.25;
lightning_connector_thickness=5.5;

/* Turn of rounding for fast preview */
preview_tab="none";

extra=0.1;
overlap=0.05;
dimensions=[ /* [phone_width, phone_depth, pocket_height, connector, connector_stickout] */
	/* iphone 5 */
	[59.4,8.25,40,"lightning",0],
	/* iphone 5 in belkin case */
	[64.25,10.75,40,"lightning",2.5],
	/* iPhone 5 in incipio Dual Pro */
	[65.25, 13.5, 40, "lightning", 0],
     /* iphone 4/4s */
	[59.25, 9.75, 40, "dock", 0],
     /*  iphone 4/4s in elago S4 Glide */
     [63.5, 12.25, 40, "dock", 0],
	/*  iphone 4/4s in ifrogz */
     [61.5, 12, 40, "dock", 0]
	];

if (Phone_1==99)
	iphone_dock(custom1,rounding=rounding_radius);
else
	iphone_dock(dimensions[Phone_1], rounding=rounding_radius);
if (Phone_2 != -1) {
	translate([(Phone_1==99 ? custom1[0] : dimensions[Phone_1][0])+wall_thickness*2-overlap,0,0]) 	{
		if (Phone_2==99 )
			iphone_dock(custom2, rounding=rounding_radius);
            else
			iphone_dock(dimensions[Phone_2], rounding=rounding_radius);
		if (Phone_3 != -1)
			translate([(Phone_2==99 ? custom2[0] : dimensions[Phone_2][0])+wall_thickness*2-overlap,0,0])
				if (Phone_3==99)
					iphone_dock(custom3, rounding=rounding_radius);
				else
					iphone_dock(dimensions[phone3], rounding=rounding_radius);
	}
}

module iphone_dock(setup=[59.4, 8.25, 40, "lightning", 0], rounding=false) {
	phone_width=setup[0];
	phone_depth=setup[1];
	pocket_height=setup[2];
	connector=setup[3];
	connector_stickout=setup[4];

	case_width=phone_width+wall_thickness*2;
	case_depth=phone_depth+wall_thickness*2;
	case_height=pocket_height+wall_thickness+dock_connector_height;

	translate([case_width/2,case_depth/2,0]) difference() {
		if (rounding!=0 && preview_tab == "none") {
			minkowski() {
				difference() {
					translate([-case_width/2,-case_depth/2,0]) rotate([90,0,90])
						linear_extrude(height=case_width)
							polygon(points=[[rounding_radius,rounding_radius],[actual_depth-rounding_radius,rounding_radius],[actual_depth-rounding_radius,case_height-rounding_radius*2.5],[rounding_radius,case_height-actual_depth-rounding_radius/2]]);
						translate([0,0,pocket_height/2+wall_thickness+dock_connector_height-rounding_radius])
							cube([phone_width+rounding_radius*2,phone_depth+rounding_radius*2,pocket_height+rounding_radius], center=true);
						translate([0,-case_depth/2+wall_thickness/2,wall_thickness+dock_connector_height+button_height])
							button_cutout();
					}
				sphere(rounding_radius, $fs=circle_precision);
			}
		} else {
			difference() {
				translate([-case_width/2,-case_depth/2,0]) rotate([90,0,90])
					linear_extrude(height=case_width)
						polygon(points=[[0,0],[actual_depth,0],[actual_depth,case_height],[0,case_height-actual_depth]]);
						translate([0,0,pocket_height/2+wall_thickness+dock_connector_height])
							cube([phone_width,phone_depth,pocket_height], center=true);
						translate([0,-case_depth/2+wall_thickness/2,wall_thickness+dock_connector_height+button_height])
							button_cutout();
			}
		}
		if (connector=="dock") {
			usb_connector(h=wall_thickness+dock_connector_height);
			translate([0,0,wall_thickness+connector_stickout]) dock_connector();
		} else if (connector=="lightning") {
			translate([0,0,wall_thickness-(lightning_connector_height-dock_connector_height)+connector_stickout])
				lightning_cutout();
		}
		translate([0,case_depth/2,wall_thickness+dock_connector_height+screw_height])
			rotate([90,0,0]) {
				translate([0,0,-wall_thickness]) cylinder(r=screw_diameter/2, h=wall_thickness*2, $fs=circle_precision);
					translate([0,0,wall_thickness-screw_countersink_depth])
						cylinder(r1=screw_diameter/2, r2=screw_diameter/2+screw_countersink_size, h=screw_countersink_depth+0.01);
		}
	}
}

module dock_connector() {
		translate([0,0,dock_connector_height/2]) union() {
			cube([dock_connector_width-dock_connector_thickness,dock_connector_thickness,dock_connector_height], center=true);
			for (offset=[-1,1]) translate([offset*(dock_connector_width/2-dock_connector_thickness/2),0,0]) cylinder(r=dock_connector_thickness/2, h=dock_connector_height, $fs=circle_precision, center=true);
		}
}

module usb_connector(height=20) {
	connector_thickness=8.0;
	connector_width=15.0;
	rounding=1.6;

	translate([0,0,height/2]) {
		cube([connector_width-rounding*2, connector_thickness, height], center=true);
		cube([connector_width, connector_thickness-rounding*2, height], center=true);
		for (yoffset=[-1,1]) for (xoffset=[-1,1]) translate([xoffset*(connector_width/2-rounding),yoffset*(connector_thickness/2-rounding),0]) cylinder(r=rounding, h=height, $fs=circle_precision, center=true);
	}
}

module lightning_connector() {
	thickness=lightning_connector_thickness;
	width=lightning_connector_width;
	height=lightning_connector_height;
	cord=4;
	translate([0,0,height/2])
		cube([width-thickness, thickness, height], center=true);
	for (n=[-1,1])
		translate([n*(width/2-thickness/2),0,0])
			cylinder(r=thickness/2, h=height);
	translate([0,0,-25])
		cylinder(r=cord/2,h=26);
}

module lightning_cutout(height=30) {
	width=lightning_connector_width;
	thickness=lightning_connector_thickness;
	lightning_connector();
	translate([0,0,lightning_connector_height-height])
		rotate([0,0,90]) {
			translate([0,0,height/2])
				cube([width-thickness, thickness, height], center=true);
			for (n=[-1,1])
				translate([n*(width/2-thickness/2),0,0])
					cylinder(r=thickness/2, h=height);
	}
}

module button_cutout() {
		translate([0,wall_thickness,0])
			rotate([90,0,0])
				cylinder(r=button_cutout_radius+rounding_radius, h=wall_thickness*2, $fs=circle_precision);
		translate([-button_cutout_radius-rounding_radius,-wall_thickness,0])
			cube([button_cutout_radius*2+rounding_radius*2, wall_thickness*2, 100]);

}
module button_cutout_rounding() {
	button_cutout_height=case_height-case_depth-button_height-wall_thickness-dock_connector_height;
	union() {
		rotate([90,0,0]) difference() {
			rotate_extrude(convexity=4, $fn=30)
				translate([button_cutout_radius+rounding_radius,0,0])
					circle(r=rounding_radius, $fs=circle_precision);
			translate([-button_cutout_radius-rounding_radius*2,0,-rounding_radius])
				cube([button_cutout_radius*2+rounding_radius*4,button_cutout_radius*2+rounding_radius*2,rounding_radius*2]);
		}
		for (xloc=[-button_cutout_radius-rounding_radius,button_cutout_radius+rounding_radius]) translate([xloc,0,0]) {
			cylinder(r=rounding_radius, h=button_cutout_height, $fs=circle_precision);
			translate([0,0,button_cutout_height]) sphere(r=rounding_radius, $fs=circle_precision);
		}

	}
}
```


[User]
Okay, I'm looking to create a parametric LED matrix holder in OpenSCAD, and I want to make it very flexible to handle different LED sizes and layouts. I've seen a few examples online, but I need something that really lets me adjust everything.

Here's what I'm thinking. I need to be able to specify the following parameters:

*   **Number of Rows:**  This will define how many horizontal rows of LEDs the matrix will have.
*   **Number of Columns:** This will define the number of vertical columns of LEDs.
*   **Grid Spacing:**  This needs to be settable, as I'll often be working with standard perfboard spacing (like 2.54mm), but I might have different needs sometimes.
*   **LED Diameter:** I need to be able to set the LED size directly, so the cutouts fit 3mm, 5mm, or other sized LEDs.
*   **LED Spacing Multiplier:** This is to help define how far apart the LEDs are on the grid. If I’m using perfboard for a 5mm LED, the LED spacing will be 3 x grid spacing.
*   **Base Plate Thickness:**  I need control over the base plate's thickness.
*   **Wall Thickness:** The thickness of the side walls should be settable to strengthen the matrix as needed.
*   **Overall Height:** I want to set the full height of the holder.
*   **Edge Supports:** I need the ability to add or remove optional round support disks at each corner of the matrix. This should be a simple on/off toggle.

The design should do the following:

1.  **Generate a base plate** with the dimensions determined by the number of rows and columns, the grid spacing, and the LED spacing multiplier.
2.  **Cut holes for the LEDs** at the correct positions, with the diameter defined in the parameters, and going all the way through the case.
3.  **Create side walls** to form a frame around the base plate using a specified thickness.
4.  **Add the optional edge supports**, if selected in the parameters.
5.  Be able to change any of the parameters to alter any dimension.

Essentially, I'm looking for a flexible and easy-to-use parameterized way to generate a custom LED matrix holder that I can easily modify.  Could you provide me with the OpenSCAD code that does this?

I'm not sure if I'll need any libraries for this, but if you need any, let me know and I'll install them.

[Assistant]
Parametric_LED_Matrix_a.scad:
```
/*
Parametric LED matrix cover by Nils R., 2013
Work in progress!
This is a script I have created to learn making stuff in OpenSCAD.

Version 1.2
Enter your parameters below.
*/

//Number of rows
rows=5;

//Number of columns
columns=7;

//2.54mm for standard veroboard
grid=2.54;

//LED diameter in mm
led_diameter=5;

//How many grid points the LEDs are apart (usually 3 for 5mm LEDs, 2 for 3mm LEDs).
spacing=3;

//Thickness of the base plate in mm
BasePlateThickness=1;

//Thickness of walls in mm
WallThickness=1;

//Full height of the matrix in mm
height=8;

//Helper Disks (1=yes, 0=no)
edge_Supports=1;

//Calculate base plate size and frame size
baseX=grid*spacing+(columns*grid*spacing);
baseY=grid*spacing+(rows*grid*spacing);
baseXinner=(grid*spacing+(columns*grid*spacing))-(WallThickness*2);
baseYinner=(grid*spacing+(rows*grid*spacing))-(WallThickness*2);

//Combined object
union()
{
	//Generate basic shape with holes for LEDs
	difference()
	{
		//Generate base plate
		cube ([baseX,baseY,height]);

		//Generate holes for LEDs
		for (y = [1 : rows] )
		{
				for (x = [1 : columns] )
				{
						translate([x*grid*spacing,y*grid*spacing,-1])
						cylinder (r=led_diameter/2,h=height+1, $fn=16);
				}
		}

		//Leave only the frame
		translate([WallThickness,WallThickness,BasePlateThickness])
		cube ([baseXinner,baseYinner,height-(BasePlateThickness-1)]);

	}

	//Generate circles around edges of the base plate if enabled
	if (edge_Supports==1)
	{
		cylinder(r=5,h=0.1, $fn=16);
		translate ([baseX,0,0])
		cylinder(r=5,h=0.1, $fn=16);
		translate ([0,baseY,0])
		cylinder(r=5,h=0.1, $fn=16);
		translate ([baseX,baseY,0])
		cylinder(r=5,h=0.1, $fn=16);

	}
}
```


[User]
Okay, I need help designing a single-wall cylinder for testing 3D printer settings, specifically with a focus on continuous extrusion. I'd like a parametric OpenSCAD file that allows me to easily adjust several key dimensions.

Here's what I need:

*   **Core Shape:** A cylinder with a single wall. This means it should have an outer wall, but no internal infill or top/bottom solid layers. The bottom is optional
*   **Parameters:** I want to be able to control the following through variables:
    *   `diameter`:  The outer diameter of the cylinder.
    *   `extrusionWidth`: The thickness of the single wall. This should correspond to my nozzle width, like 0.4mm, 0.55mm, etc.
    *   `height`:  The overall height of the cylinder.
	*	`layerHeight`: The height/thickness of the bottom layer. Set to 0 to disable the bottom.
    *   `fn`: The number of facets (resolution) for the cylinder. I should be able to set the `$fn` variable so that I can achieve a smooth cylinder even at small diameters.
*   **Functionality:**
    *   The single wall should be created by using a difference operation between two cylinders, where the inner cylinder is slightly smaller than the outer by `extrusionWidth`. This ensures I get a consistent wall thickness.
	*   The bottom should be optional and should be a cylinder with the same diameter as the outer cylinder and the specified `layerHeight`.
    *   The code should be well-commented so that I can understand what each line does.
*   **Libraries:** I don't think I'd need any external libraries for this, just basic OpenSCAD functions.

I'd like the resulting `.scad` file to have all these parameters clearly defined at the beginning of the file so that I can change them easily.

[Assistant]
singleWallCylinder.scad:
```
//Diameter of cylinder
diameter=30;
//Width of single wall layer
extrusionWidth=0.55;
//Height of cylinder
height=8;
//Height/thickness of bottom (0 for no bottom)
layerHeight=0.2;

/* [hidden] */
rad=diameter/2;
$fn=200;

union() {
translate([0,0,-layerHeight]) cylinder(r=rad, h=layerHeight);
	difference () {
		cylinder(r=rad, h=height);
		translate([0,0,-1])
		cylinder(r=rad-extrusionWidth, h=height+2);
	}
}
```


[User]
Okay, I'm looking to design a parametric hourglass in OpenSCAD, and I've got a few specific ideas and some inspiration from an existing design.  I want it to be fully customizable, with the ability to change a bunch of parameters to get the look and functionality I need.

Here's what I'm envisioning:

**Core Shape & Components:**

*   **Glass Bulbs:**  The main hourglass shape should consist of two mirrored glass bulb shapes connected by a narrow passage. I’d like to be able to adjust the overall width of these bulbs and their height, as well as the width of the narrow passage in the middle. I want to control the shape of the glass bulbs with a parameter too, similar to the `glassPretty` parameter in the example design, with higher numbers generating smoother curves.
*   **Pillars:** I want support pillars surrounding the glass part of the hourglass, and the number, width, and height of those pillars should all be customizable parameters. The pillars should be arranged evenly around the glass, and they should be able to have a variable number of sides, so they can be triangular, square, hexagonal, etc. I also want to control the amount they rotate up the sides, like a twist.
*   **Bases:** I want to be able to adjust the base thickness on the top and bottom of the hourglass. These bases should be circular and slightly wider than the pillars. I'd like to add a beveled edge to the top and bottom of the base.

**Customization Parameters:**

I’d like to have parameters that will control:

*   `pillarCount`:  Number of pillars around the glass (e.g., 3 to 8).
*   `pillarWidth`:  Radius of each pillar.
*   `pillarHeight`: Height of both pillars and the glass part (it should all be one overall height).
*   `glassWidth`:  The width of the main "glass" part of the hourglass.
*   `pillarSides`: The number of sides on the pillars (e.g., 3 for triangle, 4 for square, etc).
*   `glassJunction`:  Width of the narrow passage connecting the two glass bulbs.
*   `baseHeight`: Thickness of the top and bottom bases.
*   `rotation`: How much the pillars twist as they go up the height
*   `wallWidth`: Thickness of the glass walls.
*   `pillarSlices`: Number of slices used to create pillars (should impact print quality)
*   `glassPretty`: Controls the smoothness/shape of the glass bulbs.
*   `minki`: Controls the beveling of the edges on the base
*   `part`:  Lets the user select to generate only the glass, base and pillars, or all of the parts. This should be implemented as a string.

**Other Considerations:**

*   I want the design to be manifold, so it's ready for 3D printing.
*   I'd like to be able to adjust the individual colors of the glass, pillars, and bases for viewing purposes
*   The fill plug from the example code isn’t necessary, so you don’t need to include that part

I'm hoping for a flexible design that I can tweak to get the precise hourglass I need. I think I'd be using BOSL2, for its improved modifier and object handling capabilities.

Let me know what you think!

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

		This file had been created by Tim Chandler a.k.a. 2n2r5 and is
		being shared under the creative commons - attribution license.
		Any and all icons, references to 2n2r5.com, 2n2r5.net, Tim
		Chandler ,2n2r5 or Trademarks must remain in the the end product.
		This script is free to use for any and all purposes, both
		commercial and non-commercial provided that the above conditions
		are met.

		Please refer to http://creativecommons.org/licenses/by/3.0/
		for more information on this license.
*/

/*

Script by: Tim Chandler (2n2r5)

Filename: hourGlass.scad
Date of Creation: 8/8/13
True Revision Number: V1.2
Date of Revision: 8/12/13

Description:
Hour glass for printing challenge. Week 2

Todo:
 - Name Plate for Customization
 - Make Manifold Objects!
 - Make prettier glass

 Change Log:

 8/8/2013 - Basic Functionality completed.

*/
/* [Basic Options] */
// How many pillars should be around the glass?
pillarCount = 5 ;// [3:8]
// Radius of pillars
pillarWidth = 5	; //[3:10]
// Height of Pillars and Glass
pillarHeight = 60;// [30:150]
// Width of "Glass"
glassWidth = 50 ; //[20:100]

/* [Advanced Options] */
// Pillar Shape
pillarSides = 4 ;// [3,4,5,6,8,15,30]
// Center hole size where sand passes through
glassJunction = 3.25 ; //[2,2.25,2.5,2.75,3,3.25,3.5,3.75,4]
// Size of base
baseHeight = 5	; // [2:10]
// Rotation of Pillars
rotation = 360 ; // [0:1080]
// Thickness of "Glass"
wallWidth = .42;

/* [Expert] */
//Set this to Pillar height/layer height for the best quality. Default should be fine for most.
pillarSlices = 300; // [50:500]
//Shape of "Glass".
glassPretty = 30; // [3:100]
//Sets beveled edges on the top and bottom "base"
minki = 1.5; // [0,.5,1,1.5,2,2.5,3,3.5,4]

part = "All"; //[Bases_and_Pillers,Glass,All]

/* [Hidden] */
ff = .001;

module base(){

	union(){
			minkowski() {
			translate([0,0,-pillarHeight/2]) cylinder(r=glassWidth/2+pillarWidth-minki ,h=baseHeight,$fn=pillarCount);
			sphere(r=minki);
				}
			minkowski() {
			translate([0,0,+pillarHeight/2+baseHeight]) cylinder(r=glassWidth/2+pillarWidth-minki ,h=baseHeight,$fn=pillarCount);
			sphere(r=minki);
					}

		}

}
module pillars(){

			for (i=[1:pillarCount]){
		  		rotate([0,0,i*360/pillarCount]) translate([glassWidth/2,0,baseHeight-pillarHeight/2]) {
		  			linear_extrude(height=pillarHeight  , convexity = 50 , slices=pillarSlices, twist=rotation, $fn = pillarSides) circle(r=pillarWidth, $fn = pillarSides,  center=true);
				}
			}

}

module glassBulbs(){

	difference(){
			cylinder(r2=glassWidth/2 - pillarWidth , r1 = glassJunction/2 +wallWidth, h=pillarHeight/2+ff-minki, $fn=glassPretty);
			cylinder(r2=glassWidth/2-pillarWidth-wallWidth , r1 = glassJunction/2, h=pillarHeight/2+ff-minki , $fn=glassPretty);

	}
}

module fillPlug(){
	 	union(){
				translate([0,0,-pillarHeight/2-minki]) cylinder(r=(glassWidth/2+pillarWidth)/2,h=baseHeight/2+minki,$fn=pillarCount);
				translate([0,0,-pillarHeight/2+ baseHeight/2 ]) cylinder(r=(glassWidth/2+pillarWidth)/2-2,h=baseHeight/2+minki,$fn=pillarCount);
		}
}

print_part();

module print_part() {

	 if (part == "All") {

	difference(){
		union(){
			color("BurlyWood")pillars();
			color("SaddleBrown")translate([glassWidth,0,(baseHeight*.03)]) rotate ([0,0,0]) scale([.97,.97,1]) fillPlug();
			color("SaddleBrown")base();

			union(){

					translate([0,0,baseHeight]){color("skyblue")glassBulbs();
					mirror([0,0,1])color("skyblue")glassBulbs();}
					}
				}

		union(){
			fillPlug();
		}
	}
	}else if (part == "Glass") {

			translate([0,0,baseHeight]){color("skyblue")glassBulbs();
			mirror([0,0,1])color("skyblue")glassBulbs();}

	} else if (part == "Bases_and_Pillers") {
		difference(){
			union(){
				base();
				pillars();
			}
				union(){
			fillPlug();
		}
		}
		translate([glassWidth,0,(baseHeight*.03)]) rotate ([0,0,0]) scale([.97,.97,1]) fillPlug();
	}

	 else {

			difference(){
		union(){
			color("BurlyWood")pillars();
			color("SaddleBrown")translate([glassWidth,0,(baseHeight*.03)]) rotate ([0,0,0]) scale([.97,.97,1]) fillPlug();
			color("SaddleBrown")base();

			union(){

					translate([0,0,baseHeight]){color("skyblue")glassBulbs();
					mirror([0,0,1])color("skyblue")glassBulbs();}
					}
				}

		union(){
			fillPlug();
		}
	}
}
}

```


[User]
Okay, I'm looking to design a hard hat clip for a flashlight, and I'd like to use OpenSCAD. I've already got a basic design, but I need something more robust and parametric. I'd like your help generating an OpenSCAD file based on my existing design, but with a few improvements.

My current design, which I've attached, is a bit rough. It works by clipping into the accessory slot of my hard hat and holding a cylindrical flashlight. I want to make sure the new clip design is much more adjustable, and easier to tweak using parameters, for different flashlight sizes, hard hat slot widths, and locking strengths.

Here's a breakdown of the key features and parameters I need:

*   **Clip Width:**  This needs to be a variable (`clip_width`), representing the overall width of the clip. It should match the width of the accessory slot on my hard hat. It should be in millimeters.
*   **Flashlight Diameter:** The diameter of the flashlight (`diam`) in millimeters, it should dictate the size of the main circle.
*   **Clip Thickness:** The thickness of the clip material (`thickness`) in millimeters, it should control the thickness of the entire body.
*   **Release Tab Length:** Length of the tab for releasing the clip (`release_tab_length`) in millimeters. I want to be able to change how far the tab sticks out.
*   **Locking Clip Angle:** Angle of the locking clip (`locking_clip_angle`) in degrees, which determines how tight or “snappy” the fit is.
*   **Locking Clip Reach:** How far the locking clip extends into the slot (`locking_clip_reach`) in millimeters. This also needs to be adjustable so I can tweak the depth.
*   **Locking Clip Barb Size:** Width of the barb on the locking clip (`locking_clip_barb_size`) in millimeters. A wider barb will provide more locking force.
*  **Overall Length:** Parameterize the length of the body of the clip. I want to add a `clip_length` parameter which determines the overall length along the x-axis of the clip, from the outermost point of the circular section to the tip of the locking clip.

I'd like for the design to have the following structural elements:

*   **Circular Body:** The core of the clip that grips the flashlight. The inner diameter should be `diam`, and the outer should be `diam + 2*thickness`.
*   **Insertion Tabs:** Two triangle-shaped tabs at the opening to help guide the clip into the hard hat slot.
*   **Brace:** A small fillet, or connecting piece, between the main circular body and the insertion tabs for added strength. This should use the `thickness` variable to remain consistent.
*   **Locking Clip:** A small, angled arm with a barb at the end that grips the hard hat slot to hold the clip in place. I need to ensure that it extends deep enough into the slot, and that its barb can be adjusted in width.
*   **Release Tab:** A tab that extends out past the circular body to allow easy removal from the hard hat.

Specifically, I need to ensure that the design is entirely parametric and can be easily modified with different values of the aforementioned parameters. This will help me to adjust it for different light sizes, and different hard hats.

For libraries, I think we can stick to the built in libraries.

Could you please generate the OpenSCAD file based on these requirements?

[Assistant]
flashlight_clip_v2.scad:
```
//overall width of clip, in mm, measure hardhat slot
clip_width=30;

//Diameter of flashlight, in mm
diam=21.2;

//Thickness of clip, in mm
thickness=2;

//length of release tab, in mm
release_tab_length=5;

//Locking clip angle, in degrees; More angle = tighter/"snappier" fit
locking_clip_angle=15;

//Adjust this larger to reach deeper into hard hat slot
locking_clip_reach=13;

//Width of barb, in mm: Wider barb = more secure locking action
locking_clip_barb_size=2;

module insertion_tabs() //tabs at mouth of clip (draws a big wide triangle
{
polygon(points=[[0,0],[50,50*sqrt(3)],[50,-50*sqrt(3)]],path=[[0,1,2]]);
}

module insertion_tabs_trim() //trims off big triangle leaving the two tabs
{
translate([(thickness/2)*sqrt(3),0])
{
polygon(points=[[0,0],[50,50*sqrt(3)],[50,-50*sqrt(3)]],path=[[0,1,2]]);
}
difference()
{
circle(r=100);
circle(r=(diam/2)+thickness+release_tab_length);
}
}

module brace() //adds a little fillet between circle and tab
{
translate([-(diam/2)-thickness,-0.38*diam,0])
{
rotate(-55,[0,0,1])
{
square([2,7]);
}
}
}

module clip_segment1() //draws first half of tongue
{
translate([-(diam/2)-(thickness-1),-7.5,0])
{
square([2,20], center=true);
}
}

module clip_segment2() //draws second(bent) half of tongue
{
translate([-(diam/2)-(thickness-1)-(0.5*locking_clip_reach*sin(locking_clip_angle)),-(17+(0.5*locking_clip_reach*cos(locking_clip_angle))),0])
{
rotate(-locking_clip_angle,[0,0,1])
{
square([2,locking_clip_reach], center=true);
polygon(points=[[-1,-(locking_clip_reach/2)],[-1,-(locking_clip_reach/2)+5],[-1-locking_clip_barb_size,-(locking_clip_reach/2)+5]],paths=[[0,1,2]]);
}
}
}

//main body
linear_extrude(height=clip_width)
{
union()
{
difference()
{
	union()
	{
		circle(r=(diam/2)+thickness);
		insertion_tabs();
		brace();
}
circle(r=(diam/2));
insertion_tabs_trim();
}
clip_segment1();
clip_segment2();

}
}
```


[User]
Okay, so I have this OpenSCAD file for a fader knob, and it's mostly working great. I need a replacement fader for my old Radio Shack mixer, and this design is pretty much perfect. However, I want to make it more flexible and easier to customize for different faders, especially the indicator line on the top surface. Right now, I'm struggling to get that customization to work with the OpenSCAD Customizer.

Here's what I'm looking for:

*   **Base Dimensions:** I need to be able to independently adjust the `width` and `length` of the base rectangle of the knob. This is currently set to `width=8.9;` and `length=15.25;`.
*   **Top Dimensions:** Similarly, I need to be able to independently control the `topwidth` and `toplength` of the top rectangle. Right now, these are `topwidth=6.6;` and `toplength=14.25;`.
*   **Overall Height:** The `height` of the knob should be adjustable too, currently at `height=13;`.
*   **Bottom Slot Dimensions:** I need independent control of the slot dimensions on the bottom - the `slotwidth`, `slotlength`, and `slotdepth`. These are currently `slotwidth=4.1;`, `slotlength=1.27;`, and `slotdepth=10.5;`.
*   **Indicator Line Customization:** This is the tricky part. Instead of using a simple conditional (`if (linestyle == "slot")`), I'd like to be able to select between several different indicator line options, maybe through a dropdown menu or something in the customizer. I want to choose between:
    *   **Slot:** A recessed line (like it is now, though more parametric).
    *   **Raised:** A raised line, like a small ridge on the top.
    *   **None:** No indicator line at all.
    *   **Other options:** (not required for initial version, but would be nice): a textured line (maybe a knurled or dimpled surface), or even the ability to upload a 2d polygon that would be extruded into an indicator line.
*   **Parametric Indicator Line Dimensions:**  For the "slot" and "raised" indicator lines, I need to control the `thickness`, and `depth` (for slot or raised height for the raised indicator).  I'd like these parameters to apply for the simple "line", as well as an option for a circle, square or triangle indicator.
*   **Overall Improvements:**  I would like the design to be more flexible/parametric, using more modular shapes so it can be extended or re-purposed in the future. This is currently implemented as a single polyhedron.

Essentially, I need the whole thing to be *more* parametric and user-friendly for the customizer. I don't think the way I'm doing the line customization currently is working well.

I'm not using any libraries, and I would prefer to keep it that way unless you think it would make it significantly easier.

Can you generate a new OpenSCAD file that addresses these points? I'd like to be able to easily adjust these parameters through the OpenSCAD customizer.

[Assistant]
Fader_knob.scad:
```

// This doesn't work with customizer :(
// The indicator line
//linestyle = "slot"; // ["slot", "raised", "none"]

// base dimensions
width=8.9;
length=15.25;

// top dimensions
topwidth=6.6;
toplength=14.25;

// height
height=13;

// slot in bottom
slotwidth=4.1;
slotlength=1.27;
slotdepth=10.5;

/* [hidden] */
point0=[0,0,0];
point1=[0,width,0];
point2=[length,width,0];
point3=[length,0,0];
point4=[(length-toplength)/2,(width-topwidth)/2,height];
point5=[(length-toplength)/2,width-(width-topwidth)/2,height];
point6=[length - (length-toplength)/2,width-(width-topwidth)/2,height];
point7=[length - (length-toplength)/2,(width-topwidth)/2,height];

difference() {
polyhedron(
points=[ point0, point1, point2, point3, point4, point5, point6, point7],
triangles= [ [0,2,1],[0,3,2], // cw bottom
		   [0,1,5],[0,5,4], // cw short 1
		   [0,4,7],[0,7,3], // cw wide 1
             [2,3,7],[2,7,6], // cw short 2
             [1,2,5],[2,6,5], // cw wide 2
             [4,5,6],[4,6,7] ] // cw top
);

// carve out line for fader slot.
translate([length/2-slotlength/2, width/2-slotwidth/2, 0])
cube([slotlength,slotwidth,slotdepth]);

// line in top, if a slot.
//	if (linestyle == "slot") {
		translate([(length-toplength)/2 + 1,(topwidth/2 + (width - topwidth)/2)-.5 ,height-1])
		cube([toplength-2,1,2]);
//	}
}

// line in top, if a raised line
//	if (linestyle == "raised") {
//		translate([(length-toplength)/2 + 1,(topwidth/2 + (width - topwidth)/2)-.5 ,height-1])
//		cube([toplength-2,1,2]);
//	}

```


[User]
Okay, I've been working on a project to frame an LCD panel, basically turning it into a digital picture frame. I've designed some basic fingers in OpenSCAD, but I need something much more flexible and robust.

Here's what I need in a parametric OpenSCAD file:

**General Framing Finger Requirements:**

*   **Finger Type:** The design should be able to produce different types of framing fingers, specifically for the top, bottom, and sides of the frame. I also need one to hold a bar instead of a panel, but the bar holder finger has fewer constraints. I should be able to select which type of finger to generate using a `part` variable, with values such as 1 for top, 2 for bottom, 3 for side, and 4 for bar holder.
*   **Customizable Dimensions:** The design needs to handle frames of different sizes and monitor thicknesses, so everything should be parametric. I need to be able to set:
    *   `height`: Distance from the back of the glass to the wall (or whatever the frame is mounted on).
    *   `frame_height`: Total height of the frame.
    *   `frame_width`: Total width of the frame.
    *   `glass_height`: Height of the space within the frame where the glass/panel sits.
    *   `glass_width`: Width of the space within the frame where the glass/panel sits.
    *   `glass_offset`: Depth of the glass from the back of the frame.
    *   `monitor_thickness_top`: Thickness of the monitor at the top edge.
    *   `monitor_thickness_bottom`: Thickness of the monitor at the bottom edge.
    *    `monitor_width`: Width of the monitor (not necessarily the same as the frame)
    *    `monitor_height`: Height of the monitor (not necessarily the same as the frame)
    *   `wiggle`: A small amount of wiggle room to add for tolerance
    *   `layer`: Layer thickness for 3D printing
    *   `width`: Total finger width.
*   **Screw Holes:** The design should include screw holes for mounting. It should allow for one hole on each end of the finger and a third somewhere in the middle. The screw holes should be sized for typical mounting screws.
*   **Rounded Edges:** The outer profile of the fingers should have rounded edges, not sharp ones. A sort of capsule-like shape would be good, maybe based on `hull()` and cylinders.
*   **Mounting Method:** The fingers should mount to the frame by grabbing the frame and applying pressure to the edge of the glass/panel.
*  **Hexagonal Recess:** The finger should have hexagonal recesses for nuts to keep screws in place.

**Specific Finger Requirements:**

*   **Top and Bottom Fingers:**
    *   These fingers should have a different monitor thickness parameter for the top and bottom edge of the monitor.
    *   They should hold the monitor by grabbing the frame and applying pressure to the *edge* of the monitor.
*   **Side Fingers:**
    *   These fingers should grab the side of the frame and apply pressure to the side of the monitor.
*   **Bar Holder Finger:**
     * This finger should be much simpler, and just hold a bar. It won't need to support a monitor, so it should not have monitor thickness parameters, but it should still have the other parameters like the height and the depth.

**Code requirements:**

*   The design should be written in a well-commented, easy-to-understand parametric OpenSCAD file.
*   Units should be millimeters.
*   I'm using version 2021.01 of OpenSCAD.

**What I DON'T need (at least not yet):**

*   I don't need any specific libraries for this, just the basic OpenSCAD functions.

Could you please design this parametric OpenSCAD file? I'm ready for your code!

[Assistant]
finger.scad:
```
// What type of framing finger?
part=1; // [1:Top Finger, 2:Bottom Finger, 3:Side Finger, 4:Bar Holder]

// Distance from back of glass to wall.
height=40;

// How tall is the frame?
frame_height_v=590;

// How wide is the frame?
frame_width_v=742;

// How tall is the space in the frame for the glass?
glass_height_v=461;

// How wide is the space in the frame for the glass?
glass_width_v=612;

// How deep is the glass from the back of the frame?
glass_offset=8.7;

// Monitor thickness at the top edge.
monitor_thickness_top=11;

// Monitor thickness at the bottom edge.
monitor_thickness_bottom=8;

// Monitor width
monitor_width_v=545;

// Monitor height
monitor_height_v=322;

// How much wiggle room?
wiggle=0.5;

// Layer thickness.
layer=0.41;

// Total finger width.
width=25.4;

/* [Hidden] */

inch=25.4;
thickness=width/4;
screw_depth=inch / 4 + 1;

frame_height=frame_height_v + wiggle;
frame_width=frame_width_v + wiggle;
glass_height=glass_height_v - wiggle;
glass_width=glass_width_v - wiggle;
monitor_width=monitor_width_v + wiggle;
monitor_height=monitor_height_v + wiggle;

frame_hook=(frame_height - glass_height)/2 - height/2;

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

module basic_finger(width, offset, monitor_thickness) {
  length = frame_hook+ offset + width/2;
  difference() {
    ovoid(length, width, height);
    translate([0,0,-1])
      difference() {
      ovoid(length-thickness*2, width - thickness*2, height * 2);
      translate([-length/2,-width/2,-1+glass_offset]) {
	difference() {
	  cube([length - 1, width,screw_depth + 2]);
	  translate([width/2, width/2, 0]) cylinder(r=2, $fn=10, h=screw_depth+2-layer);
	  translate([length - width/2, width/2, 0]) cylinder(r=2, $fn=10, h=screw_depth+2-layer);
	  translate([length/2, width/2, 0]) cylinder(r=2, $fn=10, h=screw_depth+2-layer);
	}
      }
    }

    translate([0,0,0]) cube([length + 2,width+2,glass_offset * 2], center=true);

    translate([length/2-width/2-4,0,height - 5])
      rotate([90,0,0])
      cylinder(r=3 / cos(180/6), $fn=6, h=width + 2, center=true);

    translate([0,0,height - 5])
      rotate([90,0,0])
      cylinder(r=3 / cos(180/6), $fn=6, h=width + 2, center=true);

    rotate([0,0,180])
      translate([length/2-width/2-4,0,height - 5])
      rotate([90,0,0])
      cylinder(r=3 / cos(180/6), $fn=6, h=width + 2, center=true);
  }
}

module finger(width, offset, monitor_thickness) {
  length = frame_hook+ offset + width/2;
  difference() {
    ovoid(length, width, height);
    translate([0,0,-1])
      difference() {
      ovoid(length-thickness*2, width - thickness*2, height * 2);
      translate([length/2-frame_hook+1,-width/2,-1+glass_offset]) {
	difference() {
	  cube([frame_hook - thickness/2,width,screw_depth + 2]);
	  translate([thickness, width/2, 0]) cylinder(r=2, $fn=10, h=screw_depth+2-layer);
	  translate([frame_hook - width/2 -1, width/2, 0]) cylinder(r=2, $fn=10, h=screw_depth+2-layer);
	}
      }
    }

    translate([-length/2,0,0]) cube([width,width+2,monitor_thickness * 2], center=true);
    translate([length/2,0,0]) cube([frame_hook*2,width+2,glass_offset * 2], center=true);

    translate([length/2-width/2-4,0,height - 5])
      rotate([90,0,0])
      cylinder(r=3 / cos(180/6), $fn=6, h=width + 2, center=true);

    rotate([0,0,180])
      translate([length/2-width/2-4,0,height - 5])
      rotate([90,0,0])
      cylinder(r=3 / cos(180/6), $fn=6, h=width + 2, center=true);
  }
}

rotate([180,0,0]) {

// Fingers for the top edge
if(part == 1) finger(width, (glass_height-monitor_height)/2, monitor_thickness_top);

// Fingers for the bottom edge
if(part == 2) finger(width, (glass_height-monitor_height)/2, monitor_thickness_bottom);

// Fingers for the side
if(part == 3) finger(width, (glass_width-monitor_width)/2, monitor_thickness_bottom);

// Bar holder
if(part == 4) basic_finger(width, (glass_width-monitor_width)/2, 0);

}
```


[User]
Okay, I've got this design I've been working on for an 8020 extrusion cover, but I'd like to make it more flexible and easier to customize. Right now, it's a simple cover that clips into the channel and has a few posts for cable management, but I want to make it fully parametric.

Here's what I'm looking for:

I want a design that can snap into standard 8020/T-Slot extrusion channels (specifically size 10). Right now my design is more of a cover, but the ultimate goal is for it to be able to function as a clip (short lengths) or a cover (long lengths). Here's the basic shape: it's essentially a rounded rectangle that fits into the channel with two little wing-like "clips" that keep it secure. It should also have two posts that can help guide wires along.

Here's a breakdown of the features and the parameters I'd like to control:

*   **`channel_width`**:  The width of the 8020 channel. I'm using size 10 right now, but want it to work with others by changing this value. I think 10mm would be a good starting default for this.
*   **`channel_depth`**:  The depth of the 8020 channel. I think that 3.5mm would be a good starting point for this size.
*   **`cover_length`**:  The length of the cover/clip. This one is straightforward.
*   **`cover_thickness`**: The thickness of the main body of the cover. The rounded rectangle bit that fits into the channel.
*   **`wing_width`**:  The width of the "wings" that clip into the sides of the channel.
*   **`wing_thickness`**: How far the wings protrude out from the cover (along the Z axis).
*   **`post_diameter`**:  The diameter of the posts.
*  **`post_offset`**: the distance from the edge of the inner rectangle to the center of each post.
* **`post_height`**: the height of the posts.

I'd like the rounded rectangle to have radiused corners to match the channel.

For the wing clips I want them to be offset from the center so they create an interference fit with the extrusion channel.

Could you generate an OpenSCAD file that has all of these parameters and creates the object? I'd like the main body to be created from a rounded rectangle via intersections and the wing clips should be simple cubes. The posts can be simple cylinders. I need to be able to control all of the parameters and have it generate as a single object.

I don't have any specific library requirements beyond what's in a basic OpenSCAD install.

[Assistant]
8020_cable_cover.scad:
```
cover_length = 20; // the length of the cover

/* [Hidden] */
wing_width = 1.5;

module cover(cover_len)
{

	union() {

		translate([0, -2.2/2 - .95, 0])

			intersection() {
				cube([20.5/2, 1.6, cover_len], center=true);
				translate([0, 3.5, 0])
					cylinder(r=6, h=cover_len, $fn=50, center=true);

			}

		translate([-6.5/2 + wing_width/2,0,0])
			cube([wing_width,  2.75, cover_len], center=true);

		translate([6.5/2 - wing_width/2,0,0])
			cube([wing_width, 2.75, cover_len], center=true);

		translate([6.5/2 - wing_width/2 + 0.15, 2.2/2 + 0.35, 0])
			cylinder(r=1.05, h=cover_len, center=true, $fn=60);

		translate([-6.5/2 + wing_width/2 - 0.15, 2.2/2 + 0.35, 0])
			cylinder(r=1.05, h=cover_len, center=true, $fn=60);
	}
}

rotate([90, 0, 0])
	cover(cover_length);
```


[User]
Okay, I need some help designing a part. I have a file called `ballcorner.scad` that creates a corner piece with a spherical top, three triangular faces coming down from the sphere, and three screw holes along the edges. It's designed to print without supports.

Here’s the current design, which I’d like to generalize:

*   **Base Structure:** The main form is a sort of a quarter of a sphere intersecting with a cone. This creates three triangular faces where the cone meets the "ground".
*   **Screw Holes:** There are three screw holes, one along each of these edges of those faces.
*   **Parameters:** The current file uses `r` for the sphere radius, and `d` and `s` are used to define the screw hole cylinder and depth.

I want to make this design more flexible and easier to use. I'm looking for a parametric OpenSCAD file that allows me to control the following things:

1.  **Ball Radius (`ball_radius`):** This is the radius of the sphere part at the top, currently `r` in the provided file. I'd like to control the overall size of this curved top.
2.  **Cone Radius Multiplier (`cone_radius_multiplier`):** This is currently hardcoded at `2` times the ball radius. I'd like to make this adjustable using a multiplier, so the triangular "faces" can be made wider or narrower in relation to the spherical top.
3.  **Wall Strength (`wall_thickness`):** This is related to the size of the cone, basically, how much "meat" is in the part, and can be adjusted by changing the cut-out cone's dimensions, currently `d` in the provided file.
4.  **Screw Hole Diameter (`screw_diameter`):** This is the diameter of the screw holes, currently derived from `s` in the provided file. This needs to be directly adjustable.
5.  **Screw Hole Depth (`screw_depth`):** This is the depth of the screw holes along the edges, currently `d*3` in the provided file. I'd like this to be independently adjustable.
6.  **Screw Hole Offset (`screw_offset`):** The screw holes are currently positioned at a fixed offset from the edge of the triangular faces, controlled by the magic number `1.25`. I'd like to adjust this.

Essentially, I'd like a version of `ballcorner.scad` that uses named variables for all these parameters, instead of hardcoded values. I'd like to be able to change all of these values at the top of the file, and have the model update dynamically.

Can you help me generate this parametric OpenSCAD file? Please make sure it's well-commented so I can understand what each part does. I don't need any custom libraries, it should be all vanilla OpenSCAD code.

[Assistant]
ballcorner.scad:
```

r = 10;
r2 = 2 * r;

d = 2.5;
s = 4;

difference()
{
	union()
	{
		translate( [ 0, 0, r2*3/4 ] )
			sphere( r = r, center = true );
		translate( [ 0, 0, r2/2 ] )
			cylinder( r1 = r2, r2 = 0, h = r2, center = true, $fn = 3 );
	}

	translate( [ 0, 0, r2/2-d*sqrt(2) ] )
		cylinder( r1 = r2, r2 = 0, h = r2, center = true, $fn = 3 );

	cube( [ r*4, r*4, 1 ], center = true );

	for ( a = [ 0, 120, 240 ] ) rotate( a+60, [ 0, 0, 1 ] )
		translate( [ r2*cos(60), 0, 0 ] )
			rotate( [ 0, 60, 0 ] )
				translate( [ -1.25*s, 0, 0 ] )
			cylinder( r = s/2, h = d*3, center = true );
}
```


[User]
Okay, I'm looking to design a 90-degree post clamp for optical posts, similar to what's already available on Thingiverse, but I need it to be more configurable and use a different library than what I saw the other design use. I'd prefer to use the BOSL2 library, and I want the clamp to be fully parametric based on the post diameters and screw sizes I'm using.

Here's what I want the design to do:

The basic idea is that one optical post will be screwed into a base on the clamp and then a second post will be clamped into a perpendicular hole in the clamp.

Specifically, I need the following parameters to be configurable:

*   **`post_diameter_1`:** The diameter of the post that will be *clamped*.
*   **`clamp_wall_thickness`:** The thickness of the walls of the clamp around the post. This would be outside of the `post_diameter_1`.
*   **`clamp_screw_diameter`:** The diameter of the clearance hole for the screw that tightens the clamp.  I'm planning on using a tapped hole, so this should be the clearance hole before tapping.
*   **`mount_diameter`:** The diameter of the mounting base that will be screwed to the first post.
*   **`mount_depth`:** The depth of the mounting base.
*   **`mount_screw_diameter`:** The diameter of the clearance hole for the screw that attaches the clamp to the first post. Again, a tapped hole is what I want here, so this should be the clearance size before tapping.

The clamp section will have a "pinch" feature to allow for a tight grip on post_diameter_1 when the clamp screw is tightened, like how the example design in `custom_90_postclamp_v2.scad` does it. Also, the clamp section height should be equal to the `mount_diameter`. I need the clamp and mounting base to be a single solid piece.

Can you create an OpenSCAD file using the BOSL2 library that implements this design? I'd like to see the code be well-organized with meaningful variable names. Also, is there any way to preview the design with the dimensions labeled? I think that would make visualizing the design easier when tweaking parameters.

[Assistant]
custom_90_postclamp_v2.scad:
```
//design and code by emanresu (http://www.thingiverse.com/Emanresu)

// preview[view:north west]

//CUSTOMIZER VARIABLES

//post clamp parameters

//What diameter of post will you be clamping?
post_diameter = 13.1;
//How thick do you want the walls of the clamp?
clamp_wall_thick = 5;
//tap hole for clamp retention screw
clamp_screw_diameter = 5.6;

//mount base parameters

//how deep do you want the mount screw hole?
mount_depth = 5;
//how big around is the top of the post you will be attaching the clamp to?
mount_diameter = 10;
//tap hole for mounting screw, what kind of screw is the post you will attach the clamp to tapped for?
mount_screw_diameter = 3.5;

/* [Hidden] */

//sets the depth/height of the clamp section to be the diameter of the mount base
clamp_height = mount_diameter;

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

module post_clamp_90() {
	// Generates a 90º post coupling which will screw into the end of one post
	// and clamp around another oriented perpendicular to the first
	difference() {
		hull() {
			//generates basic shape, a hull of two perpendicular cylinders

			//the first cylinder will be "drilled" to fit around a post
			cylinder(r=post_diameter/2+clamp_wall_thick, h=clamp_height, $fn=360, center=true);
			translate([0, post_diameter/2+clamp_wall_thick+mount_depth/2, 0]) {
				//base of clamp that will be "drilled" and tapped
				rotate([90, 0, 0]) {
					cylinder(r=mount_diameter/2, mount_depth, $fn=360,center=true);
				}
			}
		}
		cylinder(r=post_diameter/2, h=clamp_height+1, $fn=360, center=true); //hole for post
		translate([post_diameter/4+clamp_wall_thick/5, 0, 0]) {//generates clamping notch in post hole
			rotate([0, 0, 0]) {
				cube(size=[post_diameter/2, post_diameter/3, clamp_height+1], center=true);//clamping notch
			}
		}
		translate([-(post_diameter/2+clamp_wall_thick+1)/2, 0, 0]) {//clamp screw hole
			rotate([0, 90, 0]) {
				cylinder(r=clamp_screw_diameter/2, h=post_diameter/2+clamp_wall_thick+1, $fn=360, center=true);
			}
		}
		translate([0, post_diameter/2+clamp_wall_thick, 0]) {//mount screw hole
			rotate([-90, 0, 0]) {
				cylinder(r=mount_screw_diameter/2, h=mount_depth+1, $fn=360, center=false);

			}
		}
	}
}

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

translate([0, 0, clamp_height/2]) {
	post_clamp_90();
}

```


[User]
Okay, I've got this basic parametric truss design in OpenSCAD, and I'm looking to expand it quite a bit. It's currently just a 2D rectangular truss, but I'd like to build on that concept and make it much more versatile.

Here's what I want the new parametric design to be able to do:

1.  **Basic 2D Rectangular Truss:** Retain the current functionality, where I can specify a `truss_width`, `truss_height`, `truss_thickness`, and `beam_thickness_percentage`. I'd like to keep it using a difference operation with the main cube/rectangle to cut away the material.

2.  **Variable Bay Count:** Instead of just a single bay (the current design), I'd like to specify a `bay_count_x` and a `bay_count_y` to control how many bays (squares) are in each direction.

3.  **3D Extrusion:** I'd like to be able to extrude the 2D truss design into a 3D structure. I should be able to specify a `truss_depth`. This will essentially add thickness along the Z-axis and make the structure a 3D truss.

4.  **Optional Top and Bottom Skins:** I would like to be able to add optional top and bottom skins to the truss. These skins would be attached to the truss in the Z-direction. I'd like to be able to control the `skin_thickness` and have a boolean parameter like `has_top_skin` and `has_bottom_skin` to turn these on or off.

5.  **Beam Thickness Control:** Rather than just a percentage that controls all beam thickness, I want finer grained control using individual beam thickness parameters (percentage). I'd like to separately control the `horizontal_beam_thickness`, `vertical_beam_thickness`, and `diagonal_beam_thickness`, all as percentages relative to the full width or height of the current bay. I want these to be able to be different values.

6.  **Rounded Corners:** It would be awesome if the corners of the beams could be rounded with a specified `corner_radius`. I realize this might significantly change the geometry.

7. **Variable Beam Shapes:** Rather than always being a simple rectangle, I'd like to be able to select from various beam shapes. So an additional parameter of `beam_shape` that could be "rectangle", "circle", "triangle", or a custom polygon defined by a list of x,y coordinates. The default would be "rectangle"

8.  **Unit-test Module:** A separate module that runs through a series of test cases, generating sample trusses with varied parameters for visual inspection. This will make debugging and future modification much easier.

9.  **No Dependencies:** I'd prefer the code to be self-contained without any external dependencies on libraries if possible. This is for portability, although if a compelling reason exists for a library, I'm open to using it.

So basically, I want to take my simple 2D truss and turn it into a very flexible, parametric 3D truss system that I can use for lots of different projects. Can you help me create this in OpenSCAD?

[Assistant]
parametric_truss.scad:
```
//Parametric Rectangular Truss
//Created by Jon Hollander, 8/16/13

truss_width=40;
truss_height=40;
truss_thickness=5;
beam_thickness_percentage=10; //[1:100]

module truss(base_w,base_h,link_thickness, p){
	x0 = base_w/2;
	y0 = base_h/2;

	x1 =(1-p/100)*x0;
	y1 =(1-p/100)*y0;

	d=p/100*x0/sqrt(2);

	difference(){
		cube([base_w, base_h, link_thickness], center=true);
		translate([0,0,-link_thickness/2-1]){
			linear_extrude(height=link_thickness+2) polygon([[-x1+d,-y1],[x1-d,-y1],[0,-d]]);
			linear_extrude(height=link_thickness+2) polygon([[-x1+d,y1],[x1-d,y1],[0,d]]);
			linear_extrude(height=link_thickness+2) 	polygon([[-x1,-y1+d],[-x1,y1-d],[-d,0]]);
			linear_extrude(height=link_thickness+2) 	polygon([[x1,-y1+d],[x1,y1-d],[d,0]]);

		}
	}
}

//For testing and customizer
truss(base_w=truss_width, base_h=truss_height, link_thickness=truss_thickness, p=beam_thickness_percentage);

```


[User]
Okay, I'm looking to create a parametric Sarrus linkage that can be 3D printed in place, similar to the design I found online. I want to be able to adjust the overall size and the number of arms, specifically to choose between two or four arms.

Here's a breakdown of the parameters and features I'd need:

**Overall Dimensions:**

*   `linkage_length`: The total length of the linkage when fully extended. I'd need this to control the overall travel distance.
*   `linkage_width`: The width of the base and top plates.
*   `linkage_height`: The height of the base and top plates.
*   `link_thickness`: The thickness of all the plates.

**Linkage Arm Configuration:**

*   `number_of_linkage_arms`: An integer parameter that takes on a value of 2 or 4. This determines whether the linkage has two side arms or all four side arms.

**Hinge Details:**

*   `hinge_spacing`: The clearance between the hinge parts to enable smooth movement after printing.
*  `hinge_length`: The overall length of the hinge arms.

**Internal Structure:**

* The internal structure of the plates should be a truss design with cutouts, similar to the "truss" module I'm looking at. I don't need to control the specific truss parameters directly, but the design should be parametric to the size of the plate, and look similar to what I see in the provided code. I need to ensure this is parametric so the truss is proportional to the base plate.

**Hinge Mechanism**

*   The hinge mechanism should be based on a simple stacked-clip design, similar to the "hhinge" module from the code I've provided. I need to ensure that the number of hinge clips are parametric to the size of the linkage. I'd like the number of clips to scale with the width of the plates. Specifically, the number of clips in x should be scaled with floor(linkage_width/12) and the number of clips in y scaled with floor(linkage_height/12). This parameter needs to be an integer, so please apply the floor function if you need to in any calculations.
    * I need to be able to control the radial clearance around the hinge clips with the `hinge_spacing` parameter, so that is an important consideration for calculating the `clear` value in the hhinge module. Specifically, the `clear` variable should equal the specified `hinge_spacing` variable
    *   The hinge length should be controllable by the `hinge_length` parameter. The length of the clips (`l`) should be calculated based on `l=hinge_length-link_thickness/2`. The clip radius should be defined as `r=0.5*link_thickness`

**Other Considerations:**

* The design should be able to be 3D printed in place without supports.
* I'd like to use the `MCAD` library, specifically `regular_shapes.scad` for any standard shapes.
*  I'd like a parametric version of the whole design, so I can change the size and number of arms easily.

I need the full OpenSCAD code for this model, using the parameters I've defined and the specifications I've mentioned. I'd like all the parts to be defined using modules, so I can reuse those if I need to modify this further down the line. Could you please generate the complete code for me?

[Assistant]
in_place_sarrus.scad:
```
//Print-in-place Modular Sarrus Linkage
//Created by Jon Hollander, 8/16/13

use <MCAD/regular_shapes.scad>

//User Parameters
linkage_length = 80;
linkage_width = 30;
linkage_height = 30;
link_thickness = 5;

number_of_linkage_arms = 2;//[2,4]
hinge_spacing = 1;
hinge_length = 5.5;

n_x=floor(linkage_width/12);
n_y=floor(linkage_height/12);

//Draw Sarrus Linkage
sarrus_linkage();

module sarrus_linkage(){
	base_plate();
	side_plate_x1();
	side_plate_x2();
	top_plate();
	side_plate_y1();
	side_plate_y2();

	base_w = linkage_width-2*hinge_length;
	base_h=linkage_height-2*hinge_length;

	if(number_of_linkage_arms == 4){
		mirror([1,0,0]){
			side_plate_x1();
			side_plate_x2();
		}
		mirror([0,1,0]){
			side_plate_y1();
			side_plate_y2();
		}

		translate([-base_w/2-hinge_length,0,0])
			hinge_pair(n_y);
		translate([0,-base_h/2-hinge_length,0]) rotate([0,0,90])
			hinge_pair(n_x);
	}
}

module base_plate(){
	base_w=linkage_width-2*hinge_length;
	base_h=linkage_height-2*hinge_length;
	//echo(base_w);
	truss(base_w, base_h, link_thickness);
	translate([linkage_width/2,0,0]){
		hinge_pair(n_y);
		//#cube([hinge_length,1,1],center=true);
	}
	translate([0,linkage_height/2,0]) rotate([0,0,90]){
		hinge_pair(n_x);
	}

}

module side_plate_x1(){
	base_w=linkage_length/2-2*hinge_length;
	base_h=linkage_height-2*hinge_length;

	translate([(linkage_width+linkage_length/2)/2,0,0]){
		side_plate_x(base_w, base_h);
		translate([base_w/2+hinge_length,0,0]) {
			hinge_pair(n_y);
		}
	}
}

module side_plate_x2(){
	base_w=linkage_length/2-2*hinge_length;
	base_h=linkage_height-2*hinge_length;

	translate([(linkage_width+3*linkage_length/2)/2,0,0]){
		side_plate_x(base_w, base_h);
		translate([base_w/2+hinge_length,0,0])
			single_hinge(n_y);
	}
}

module side_plate_x(w,h){
	truss(w, h, link_thickness);
}

module top_plate(){
	base_w=linkage_width-2*hinge_length;
	base_h=linkage_height-2*hinge_length;
	translate([linkage_width+linkage_length,0,0]){
		truss(base_w, base_h, link_thickness);

		translate([-base_w/2-hinge_length,0,0]) rotate([0,0,180])
			single_hinge(n_y);
		translate([0,linkage_height/2,0]) rotate([0,0,90]){
			single_hinge(n_x);
		}
		if(number_of_linkage_arms == 4){
			translate([base_w/2+hinge_length,0,0]) rotate([0,0,180]) mirror([1,0,0]) single_hinge(n_y);
			translate([0,-linkage_height/2,0]) rotate([0,0,90]) mirror([1,0,0]) single_hinge(n_x);

		}
	}

}

module side_plate_y1(){
	base_h=linkage_length/2-2*hinge_length;
	base_w=linkage_width-2*hinge_length;

	translate([0,(linkage_height+linkage_length/2)/2,0]){
		side_plate_y(base_w, base_h);
		translate([0,base_h/2+hinge_length,0]) rotate([0,0,90]){
			hinge_pair(n_x);
		}
	}
}

module side_plate_y2(){
	base_h=linkage_length/2-2*hinge_length;
	base_w=linkage_width-2*hinge_length;

	translate([0,(linkage_height+3*linkage_length/2)/2,0]){
		side_plate_y(base_w, base_h);
		translate([0,base_h/2+hinge_length,0]) rotate([0,0,90]){
			single_hinge(n_x);
		}
	}
}

module side_plate_y(w,h){
	truss(w, h, link_thickness);

}

//Note that length of hinge arm is l+r, so need to subtract r from hinge_length to get correct length hinges.

module hinge_pair(n){
	hhinge(n,space=1.38,clear=hinge_spacing,r=0.5*link_thickness,l=hinge_length-link_thickness/2,pin = false );
	rotate(180,[0,0,1]) hhinge( n,space=1.38,clear=hinge_spacing,r=0.5*link_thickness,l=hinge_length-link_thickness/2,pin = false );
}

module single_hinge(n){
	rotate(180,[0,0,1]) hhinge(n,space=1.38,clear=hinge_spacing,r=0.5*link_thickness,l=hinge_length-link_thickness/2,pin = false );
}

module truss(base_w,base_h,base_t){
	x0 = base_w/2;
	y0 = base_h/2;

	x1 =.9*x0;
	y1 =.9*y0;

	d=.1*x0/sqrt(2);

	difference(){
		cube([base_w, base_h, base_t], center=true);
		translate([0,0,-base_t/2-1]){
			linear_extrude(height=link_thickness+2) polygon([[-x1+d,-y1],[x1-d,-y1],[0,-d]]);
			linear_extrude(height=link_thickness+2) polygon([[-x1+d,y1],[x1-d,y1],[0,d]]);
			linear_extrude(height=link_thickness+2) 	polygon([[-x1,-y1+d],[-x1,y1-d],[-d,0]]);
			linear_extrude(height=link_thickness+2) 	polygon([[x1,-y1+d],[x1,y1-d],[d,0]]);
		}
	}
}

//Uses Basic Hinge by mrule - http://www.thingiverse.com/thing:5922

/**
michael rule
openscad script for sparkfun polygonal pieces
GPL/CC non-commercial share alike etc.
**/

//basic clip piece
module nub(h=2,k=5,r=10,r1=5,l=1.2)
	difference() {
		union() {
			cylinder(k,r1,0,$fn=30);
			translate([0,0,-h]) {
				cylinder(r=r,h=h,$fn=30);
				translate([0,-r,0]) cube([r+l,2*r,h]);
				translate([-r,0,0]) #cube([r,r,h]);
			}
		}
		translate([0,0,-h]) cylinder(k,r1,0,$fn=30);
	}

//stack of like facing clips
module rack(n=5,space=4,clear=0.4,r=5,l=2)
	for (i=[1:n]) translate([0,0,(2*clear+2*space)*i]) nub(h=space,k=2.5,r=r,r1=r-1,l=l);

//two mirrored stacks make a hinge
module hinge(n=2,space=4,clear=0.0,r=5,l=2,pin=false){
	translate([0,0,-0.5*clear])
		rack(n,space,clear,r,l);
	translate([0,0,1.5*clear+space])
		mirror([0,0,1]) rack(n,space,clear,r,l);
	if(pin) translate([-r,r-0.4,-(clear+space)*n*2+space+clear*1.5])
		cube([1.6,0.4,(clear+space)*n*4-space-clear*2]);
}

/**

 hhinge 	: basic horizontal hinge piece

 variable	description
 n  		: number of clips ( doubled )
 space 	: width of and space between clips
 clear 	: additional spacing between clips for clearance
 r 		: radius of clip ( half the height )
 l 		: length of that little square bit coming off the back for connecting hinge to objects
 pin 		: if true, a small piece will be added at the bottom, which helps hold the hinge together while printing
*/
module hhinge(n=3,space=1.38,clear=0.4,r=0.5*5.6,l=0.4*5.6,pin=true)
	rotate(270,[1,0,0]) hinge(n,space,clear,r,l,pin);

//basic demo
//hhinge();

////example mating
//hhinge( pin = false );
//rotate(180,[0,0,1]) hhinge( pin = false );

```