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vwheel.scad
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vwheel.scad
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// MakerSlide Component
// http://www.makerslide.com
// b17001_rev_2
// Single Bearing Delrin V Wheel
// Original by Barton Dring
// OpenSCAD model by Mike Sheldrake
union() {
vwheel(false);
translate([0,0,-3]) vwheelbearing();
}
module vwheelbearing() { //id=5mm,od=16mm,width=5mm
color([0.5,0.5,0.5])
difference() {
cylinder(r=9,h=6.0,$fn=24);
translate([0,0,-0.05]) cylinder(r=2.5+0.1,h=7,$fn=40);
}
}
module vwheel(withbearing=true) { //MakerSlide.com delrin v wheel
id1=15.9743;
id2=14.8;
od1=23.5;
od2=18.75;
color([0.2,0.2,0.2])
rotate_extrude(convexity = 10,$fn=40)
translate([id1/2, 0, 0])
rotate([0,0,-90])
polygon(points = [
[3 - 0.3/sqrt(2),0],
[-2,0],
[-2,-(id1-id2)/2],
[-3,-(id1-id2)/2],
[-3,(od1-id1)/2 - 0.2/sqrt(2)],
[-3 + 0.2/sqrt(2),(od1-id1)/2],
[-3 + 0.75,(od1-id1)/2],
[-0.55/2, (od1-id1)/2 - (3 - (0.75+(0.55/2)))],
[-0.55/2,(od2-id1)/2],
[0.55/2,(od2-id1)/2],
[0.55/2, (od1-id1)/2 - (3 - (0.75+(0.55/2)))],
[3 - 0.75,(od1-id1)/2],
[3 - 0.2/sqrt(2),(od1-id1)/2],
[3,(od1-id1)/2 - 0.2/sqrt(2)],
[3,0.3/sqrt(2)]
],
paths = [
[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14]
], convexity = 10);
if (withbearing) {translate([0,0,-3]) vwheelbearing();}
}