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125 lines
3.8 KiB
OpenSCAD
125 lines
3.8 KiB
OpenSCAD
//////////////////////////////////////////////////////////////////////
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// LibFile: constants.scad
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// Useful Constants.
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// Includes:
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// include <BOSL2/std.scad>
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//////////////////////////////////////////////////////////////////////
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// Section: General Constants
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// Constant: $slop
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// Description:
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// The printer specific amount of slop in mm to print with to make parts fit exactly.
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// You may need to override this value for your printer.
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$slop = 0.20;
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// Constant: INCH
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// Description:
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// The number of millimeters in an inch.
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INCH = 25.4;
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// Section: Directional Vectors
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// Vectors useful for `rotate()`, `mirror()`, and `anchor` arguments for `cuboid()`, `cyl()`, etc.
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// Constant: LEFT
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// Description: Vector pointing left. [-1,0,0]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=LEFT);
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LEFT = [-1, 0, 0];
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// Constant: RIGHT
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// Description: Vector pointing right. [1,0,0]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=RIGHT);
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RIGHT = [ 1, 0, 0];
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// Constant: FRONT
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// Description: Vector pointing forward. [0,-1,0]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=FRONT);
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FRONT = [ 0, -1, 0];
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// Constant: BACK
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// Description: Vector pointing back. [0,1,0]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=BACK);
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BACK = [ 0, 1, 0];
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// Constant: BOTTOM
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// Description: Vector pointing down. [0,0,-1]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=BOTTOM);
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BOTTOM = [ 0, 0, -1];
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// Constant: TOP
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// Description: Vector pointing up. [0,0,1]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=TOP);
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TOP = [ 0, 0, 1];
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// Constant: ALLPOS
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// Description: Vector pointing right, back, and up. [1,1,1]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=ALLPOS);
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ALLPOS = [ 1, 1, 1]; // Vector pointing X+,Y+,Z+.
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// Constant: ALLNEG
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// Description: Vector pointing left, forwards, and down. [-1,-1,-1]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=ALLNEG);
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ALLNEG = [-1, -1, -1]; // Vector pointing X-,Y-,Z-.
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// Constant: CENTER
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// Description: Zero vector. Centered. [0,0,0]
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// Example(3D): Usage with `anchor`
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// cuboid(20, anchor=CENTER);
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CENTER = [ 0, 0, 0]; // Centered zero vector.
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// Section: Vector Aliases
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// Useful aliases for use with `anchor`.
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CTR = CENTER; // Zero vector, `[0,0,0]`. Alias to `CENTER`.
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UP = TOP; // Vector pointing up, alias to `TOP`.
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DOWN = BOTTOM; // Vector pointing down, alias to `BOTTOM`.
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BTM = BOTTOM; // Vector pointing down, alias to `BOTTOM`.
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BOT = BOTTOM; // Vector pointing down, alias to `BOTTOM`.
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FWD = FRONT; // Vector pointing forward, alias to `FRONT`.
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FORWARD = FRONT; // Vector pointing forward, alias to `FRONT`.
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// CommonCode:
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// orientations = [
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// RIGHT, BACK, UP,
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// LEFT, FWD, DOWN,
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// ];
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// axiscolors = ["red", "forestgreen", "dodgerblue"];
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// module text3d(text, h=0.01, size=3) {
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// linear_extrude(height=h, convexity=10) {
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// text(text=text, size=size, valign="center", halign="center");
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// }
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// }
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// module orient_cube(ang) {
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// color("lightgray") cube(20, center=true);
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// color(axiscolors.x) up ((20-1)/2+0.01) back ((20-1)/2+0.01) cube([18,1,1], center=true);
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// color(axiscolors.y) up ((20-1)/2+0.01) right((20-1)/2+0.01) cube([1,18,1], center=true);
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// color(axiscolors.z) back((20-1)/2+0.01) right((20-1)/2+0.01) cube([1,1,18], center=true);
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// for (axis=[0:2], neg=[0:1]) {
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// idx = axis + 3*neg;
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// rot(ang, from=UP, to=orientations[idx]) {
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// up(10) {
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// fwd(4) color("black") text3d(text=str(ang), size=4);
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// back(4) color(axiscolors[axis]) text3d(text=str(["X","Y","Z"][axis], ["+","NEG"][neg]), size=4);
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// }
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// }
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// }
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// }
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// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
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