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Add 2020 T-Slot profile

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mmcwilliams 2023-04-23 21:56:23 -04:00
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/**
* @file
* Generic library for fractional T-Slot extrusions.
*
* Creative Commons Share Alike 3.0
* Copyright (c) 2014 Manuel García
*
* Original library (David Lee Miller)
* https://www.thingiverse.com/thing:136430
*
* Modified to be used in customizer
*/
//CUSTOMIZER VARIABLES
ProfileCore = 4.3 * 1; // Profile core Ø (Default M5).
minkR_TS = 0.04 * 20; // Minkowski radius for the T-Slot.
minkR_IC = 0.075 * 20; // Minkowski radius for the inner cutout.
minkR_PF = 0.05 * 20; // Minkowski radius for the profile corners.
//CUSTOMIZER VARIABLES END
module 2020Profile(height, core = ProfileCore) {
linear_extrude(height = height, center = true)
union() {
difference() {
minkowski() {
translate([0, 0, 0]) circle(r = minkR_PF, center = true, $fn = 32);
square([1 * 20 - 2 * minkR_PF, 1 * 20 - 2 * minkR_PF], center = true);
}
translate([0, 0, 0]) circle(r = core / 2, $fn = 24);
translate([-0.5 * 20 + 0.087 * 20, 0, 0]) tSlot();
rotate([0, 0, 180]) translate([-0.5 * 20 + 0.087 * 20, 0, 0]) tSlot();
translate([0, -0.5 * 20 + 0.087 * 20, 0]) rotate([0, 0, 90]) tSlot();
translate([0, 0.5 * 20 - 0.087 * 20, 0]) rotate([0, 0, -90]) tSlot();
}
}
}
module fillet(rad) {
translate([-rad, -rad, 0])
difference() {
translate([0, 0, 0]) square([rad + 0.01, rad + 0.01]);
circle(r = rad, center = true, $fn = 32);
}
}
module insideCutout() {
minkowski() {
translate([0, 0, 0]) circle(r = minkR_IC, center = true, $fn = 32);
hull() {
square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
}
}
}
module doubleCutout() {
union() {
minkowski() {
translate([0, 0, 0]) circle(r = minkR_IC, center = true, $fn = 32);
union() {
rotate([0, 0, 0]) hull() {
translate([-0.5 * 20, 0, 0]) hull() {
square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
}
translate([0.5 * 20, 0, 0]) hull() {
square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
}
}
rotate([0, 0, 90]) hull() {
translate([-0.5 * 20, 0, 0]) hull() {
square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
}
translate([0.5 * 20, 0, 0]) hull() {
square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
}
}
}
}
rotate([0, 0, 0]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
rotate([0, 0, 180]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
rotate([0, 0, 90]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
rotate([0, 0, -90]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
}
}
module tSlot() {
union() {
translate([minkR_TS, 0, 0])
minkowski() {
translate([0, 0, 0]) circle(r = minkR_TS, center = true, $fn = 32);
hull() {
square([0.001 * 20, 0.585 * 20 - 2 * minkR_TS], center = true);
translate([(0.233 * 20 - 2 * minkR_TS) / 2, 0, 0]) square([0.233 * 20 - 2 * minkR_TS, 0.2 * 20], center = true);
}
}
translate([-0.255 * 20 / 2 + 0.01, 0, 0]) square(0.255 * 20, center = true);
translate([-0.35 * 20 / 2 - 0.087 * 20 + 0.01, 0, 0]) square(0.35 * 20, center = true);
translate([0, -0.255 * 20 / 2, 0]) fillet(minkR_TS / 2);
translate([-0.087 * 20, -0.255 * 20 / 2, 0]) rotate([0, 0, 90]) fillet(minkR_TS / 2);
scale([1, -1, 1]) translate([0, -0.255 * 20 / 2, 0]) fillet(minkR_TS / 2);
scale([1, -1, 1]) translate([-0.087 * 20, -0.255 * 20 / 2, 0]) rotate([0, 0, 90]) fillet(minkR_TS / 2);
}
}