133 lines
4.9 KiB
OpenSCAD
133 lines
4.9 KiB
OpenSCAD
/**
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* @file
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* Generic library for fractional T-Slot extrusions.
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*
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* Creative Commons Share Alike 3.0
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* Copyright (c) 2014 Manuel García
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*
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* Original library (David Lee Miller)
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* https://www.thingiverse.com/thing:136430
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*
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* Modified to be used in customizer
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*/
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include <./common.scad>;
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//CUSTOMIZER VARIABLES
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ProfileCore = 4.3 * 1; // Profile core Ø (Default M5).
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minkR_TS = 0.04 * 20; // Minkowski radius for the T-Slot.
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minkR_IC = 0.075 * 20; // Minkowski radius for the inner cutout.
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minkR_PF = 0.05 * 20; // Minkowski radius for the profile corners.
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//CUSTOMIZER VARIABLES END
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module 2020_tslot(height, core = ProfileCore) {
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linear_extrude(height = height, center = true)
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union() {
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difference() {
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minkowski() {
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translate([0, 0, 0]) circle(r = minkR_PF, $fn = 32);
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square([1 * 20 - 2 * minkR_PF, 1 * 20 - 2 * minkR_PF], center = true);
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}
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translate([0, 0, 0]) circle(r = core / 2, $fn = 24);
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translate([-0.5 * 20 + 0.087 * 20, 0, 0]) 2020_tslot_void();
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rotate([0, 0, 180]) translate([-0.5 * 20 + 0.087 * 20, 0, 0]) 2020_tslot_void();
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translate([0, -0.5 * 20 + 0.087 * 20, 0]) rotate([0, 0, 90]) 2020_tslot_void();
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translate([0, 0.5 * 20 - 0.087 * 20, 0]) rotate([0, 0, -90]) 2020_tslot_void();
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}
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}
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}
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module fillet(rad) {
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translate([-rad, -rad, 0])
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difference() {
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translate([0, 0, 0]) square([rad + 0.01, rad + 0.01]);
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circle(r = rad, $fn = 32);
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}
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}
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module inside_cutout() {
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minkowski() {
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translate([0, 0, 0]) circle(r = minkR_IC, center = true, $fn = 32);
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hull() {
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square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
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square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
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}
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}
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}
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module double_cutout() {
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union() {
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minkowski() {
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translate([0, 0, 0]) circle(r = minkR_IC, center = true, $fn = 32);
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union() {
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rotate([0, 0, 0]) hull() {
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translate([-0.5 * 20, 0, 0]) hull() {
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square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
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square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
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}
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translate([0.5 * 20, 0, 0]) hull() {
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square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
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square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
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}
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}
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rotate([0, 0, 90]) hull() {
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translate([-0.5 * 20, 0, 0]) hull() {
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square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
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square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
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}
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translate([0.5 * 20, 0, 0]) hull() {
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square([0.2 * 20 - minkR_IC, 0.645 * 20 - 2 * minkR_IC], center = true);
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square([0.8 * 20 - 2 * minkR_IC, 0.001 * 20], center = true);
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}
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}
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}
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}
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rotate([0, 0, 0]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
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rotate([0, 0, 180]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
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rotate([0, 0, 90]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
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rotate([0, 0, -90]) translate([-0.645 * 20 / 2, -0.645 * 20 / 2, 0]) fillet(minkR_IC);
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}
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}
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module 2020_tslot_void() {
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union() {
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translate([minkR_TS, 0, 0])
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minkowski() {
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translate([0, 0, 0]) circle(r = minkR_TS, $fn = 32);
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hull() {
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square([0.001 * 20, 0.585 * 20 - 2 * minkR_TS], center = true);
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translate([(0.233 * 20 - 2 * minkR_TS) / 2, 0, 0]) square([0.233 * 20 - 2 * minkR_TS, 0.2 * 20], center = true);
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}
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}
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translate([-0.255 * 20 / 2 + 0.01, 0, 0]) square(0.255 * 20, center = true);
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translate([-0.35 * 20 / 2 - 0.087 * 20 + 0.01, 0, 0]) square(0.35 * 20, center = true);
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translate([0, -0.255 * 20 / 2, 0]) fillet(minkR_TS / 2);
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translate([-0.087 * 20, -0.255 * 20 / 2, 0]) rotate([0, 0, 90]) fillet(minkR_TS / 2);
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scale([1, -1, 1]) translate([0, -0.255 * 20 / 2, 0]) fillet(minkR_TS / 2);
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scale([1, -1, 1]) translate([-0.087 * 20, -0.255 * 20 / 2, 0]) rotate([0, 0, 90]) fillet(minkR_TS / 2);
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}
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}
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module 2020_tslot_insert (pos = [0, 0, 0], rot = [0, 0, 0]) {
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H = 6;
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TopGapY = 7.5;
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TopGapZ = 4.3;
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BottomBevelY = 5;
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BottomBevelZ = -4;
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BevelAngle = 45;
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translate(pos) rotate(rot) difference() {
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cube([10, 10, H], center = true);
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//sides
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translate([0, TopGapY, TopGapZ]) cube([11, 10, H], center = true);
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translate([0, -TopGapY, TopGapZ]) cube([11, 10, H], center = true);
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//bevels
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translate([0, -BottomBevelY, BottomBevelZ]) rotate([-BevelAngle, 0, 0]) cube([11, 10, H], center = true);
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translate([0, BottomBevelY, BottomBevelZ]) rotate([BevelAngle, 0, 0]) cube([11, 10, H], center = true);
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//nut
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translate([0, 0, -(H/2) + (3/2) - 0.01]) m3_nut(3);
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//bolt
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cylinder(r = R(3.25), h = H + 1, center = true, $fn = 30);
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//trim bottom
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translate([0, 0, -H+0.3]) cube([10+1, 10+1, H], center = true);
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}
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} |