Replaced bearings.scad with bearing.scad (from http://github.com/zzorn/FunRap)
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README
4
README
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@ -20,12 +20,14 @@ Currently Provided Tools:
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Other tools (alpha quality):
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* nuts_and_bolts.scad: for creating metric and imperial bolt/nut holes
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* bearings.scad: standard/custom bearings
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* bearing.scad: standard/custom bearings
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* screw.cad: screws and augers
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* materials.scad: color definitions for different materials
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Utils:
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* math.scad: general math functions
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* constants.scad: mathematical constants
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* curves.scad: mathematical functions defining curves
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* units.scad: easy metric units
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You are welcome to fork this project in github and request pulls. I will try to accomodate the community as much as possible in this.
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66
bearing.scad
Normal file
66
bearing.scad
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@ -0,0 +1,66 @@
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/*
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* Bearing model.
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*
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* Originally by Hans Häggström, 2010.
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* Dual licenced under Creative Commons Attribution-Share Alike 3.0 and LGPL2 or later
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*/
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include <units.scad>
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include <materials.scad>
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module bearing_test(){
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bearing();
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bearing(pos=[5*cm, 0,0], angle=[90,0,0]);
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bearing(pos=[-2.5*cm, 0,0], model=Bearing688);
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}
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BEARING_INNER_DIAMETER = 0;
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BEARING_OUTER_DIAMETER = 1;
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BEARING_WIDTH = 2;
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Bearing608 = [8*mm, 22*mm, 7*mm];
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Bearing627 = [7*mm, 22*mm, 7*mm];
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Bearing688 = [8*mm, 16*mm, 5*mm];
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SkateBearing = Bearing608;
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function bearingWidth(model) = model[BEARING_WIDTH];
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function bearingInnerDiameter(model) = model[BEARING_INNER_DIAMETER];
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function bearingOuterDiameter(model) = model[BEARING_OUTER_DIAMETER];
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module bearing(pos=[0,0,0], angle=[0,0,0], model=SkateBearing, material=Steel, sideMaterial=Brass) {
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w = bearingWidth(model);
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innerD = bearingInnerDiameter(model);
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outerD = bearingOuterDiameter(model);
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innerRim = innerD + (outerD - innerD) * 0.2;
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outerRim = outerD - (outerD - innerD) * 0.2;
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midSink = w * 0.1;
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color(material)
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translate(pos)
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rotate(angle) {
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difference() {
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// Basic ring
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Ring([0,0,0], outerD, innerD, w, material, material);
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// Side shields
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Ring([0,0,-epsilon], outerRim, innerRim, epsilon+midSink, sideMaterial, material);
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Ring([0,0,w-midSink], outerRim, innerRim, epsilon+midSink, sideMaterial, material);
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}
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}
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module Ring(pos, od, id, h, material, holeMaterial) {
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color(material) {
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translate(pos)
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difference() {
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cylinder(r=od/2, h=h, $fs = 0.01);
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color(holeMaterial)
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translate([0,0,-10*epsilon])
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cylinder(r=id/2, h=h+20*epsilon, $fs = 0.01);
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}
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}
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}
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}
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@ -1,11 +0,0 @@
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// License: GPL 2.0
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//Todo: placeholder; should generate standard + cusom bearing mounting holes
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module bearing_hole(outer_radius, hole=true, mochup=true)
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{
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union()
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{
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if (mochup==true) %translate([0,0,-1.5])cylinder(r=outer_radius,h=3);
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if (hole==true) circle(r=outer_radius);
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}
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}
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