41 lines
1.2 KiB
OpenSCAD
41 lines
1.2 KiB
OpenSCAD
$fn=150;
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wheel_width = 15;
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wheel_dia=75;
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bearing_outer_dia = 30;
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bearing_width=9;
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bearing_shoulder = 1.5;
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rope_dia = 8;
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opening_angle = 8;
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rounding_dia=3;
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rotate_extrude(angle=360){
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difference(){
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translate([0,-wheel_width/2,0])square([wheel_dia/2 , wheel_width]);
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translate([wheel_dia/2 - rope_dia/2,0,0])circle(d=rope_dia);
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translate([wheel_dia/2- rope_dia/2,-rope_dia/2,0])
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rotate([0,0,opening_angle]) square([rope_dia, rope_dia]);
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translate([wheel_dia/2- rope_dia/2,-rope_dia/2,0])
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rotate([0,0,-opening_angle]) square([rope_dia, rope_dia]);
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translate([0,-bearing_width/2,0])square([bearing_outer_dia/2, bearing_width]);
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translate([0,0,0])square([bearing_outer_dia/2, bearing_width]);
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translate([0,-10,0])square([bearing_outer_dia/2 - bearing_shoulder, bearing_width]);
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difference(){
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translate([wheel_dia/2-rounding_dia/2,wheel_width/2 - rounding_dia,0])square([rounding_dia/2 , rounding_dia]);
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translate([wheel_dia/2-rounding_dia/2,wheel_width/2 - rounding_dia/2,0])circle(d=rounding_dia);
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}
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difference(){
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translate([wheel_dia/2-rounding_dia/2,-wheel_width/2 ,0])square([rounding_dia/2 , rounding_dia]);
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translate([wheel_dia/2-rounding_dia/2,-wheel_width/2 + rounding_dia/2,0])circle(d=rounding_dia);
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}
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}
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}
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