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85 lines
1.6 KiB
OpenSCAD
85 lines
1.6 KiB
OpenSCAD
include <config.scad>
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use <GDMUtils.scad>
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use <publicDomainGearV1.1.scad>
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module drive_gear() {
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h = 10;
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shaft = motor_shaft_size + 2 * printer_slop;
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color("Salmon")
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prerender(convexity=10)
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union() {
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difference() {
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// Herringbone gear
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mirror_copy([0, 0, 1]) {
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translate([0, 0, h/4]) {
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gear (
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mm_per_tooth = rack_tooth_size,
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number_of_teeth = 9,
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thickness = h/2,
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hole_diameter = shaft,
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twist = 15,
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teeth_to_hide = 0,
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pressure_angle = 20
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);
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}
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}
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// Bevel end of gear.
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tube(h=6, r1=20, r2=7.5, wall=4);
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}
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difference() {
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union() {
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// Fix up gear weirdness with solid center.
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cylinder(h=h, r=shaft, center=true);
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// Base
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translate([0, 0, -(h+10)/2])
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cylinder(h=10, r=9, center=true);
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}
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difference() {
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// Shaft hole
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cylinder(h=(h+5)*3, r=shaft/2, center=true, $fn=16);
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if (motor_shaft_flatted) {
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// Shaft flat side.
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translate([1.4*shaft, 0, 0])
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cube(size=[shaft*2, shaft*2, (h+6)*3], center=true);
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}
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}
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translate([motor_shaft_size/2+1.5, 0, -(h/2+5+11)/2]) {
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yrot(90) {
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// Nut Slot
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scale([1.1, 1.1, 1.1]) hull() {
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metric_nut(size=set_screw_size, hole=false);
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translate([5, 0, 0])
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metric_nut(size=set_screw_size, hole=false);
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}
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// Set screw hole.
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translate([0, 0, 2])
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cylinder(r=set_screw_size/2+printer_slop, h=9, center=true, $fn=8);
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}
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}
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}
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}
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}
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//!drive_gear();
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module drive_gear_parts() { // make me
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drive_gear();
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}
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drive_gear_parts();
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// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
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