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fix knurling to work with cones (at least mostly)
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1 changed files with 6 additions and 2 deletions
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@ -50,6 +50,7 @@
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// knurled_cylinder(l=30, r=20, count=20, profile=120, helix=30);
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// knurled_cylinder(l=30, r=20, count=20, profile=120, helix=30);
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// knurled_cylinder(l=30, r=20, count=20, profile=120, helix=0.01);
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// knurled_cylinder(l=30, r=20, count=20, profile=120, helix=0.01);
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// knurled_cylinder(l=30, r=20, count=20, profile=140, helix=60);
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// knurled_cylinder(l=30, r=20, count=20, profile=140, helix=60);
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// knurled_cylinder(l=30, r1=20, r2=12, count=40, profile=90, helix=55);
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module knurled_cylinder(
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module knurled_cylinder(
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l,
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l,
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r=undef, r1=undef, r2=undef,
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r=undef, r1=undef, r2=undef,
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@ -79,8 +80,11 @@ module knurled_cylinder(
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vertices = concat(
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vertices = concat(
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[
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[
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for (layer = [0:1:layers], pt=path)
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for (layer = [0:1:layers], pt=path)
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(layer%2)? [pt.x, pt.y, layer*knob_h-layers*knob_h/2] :
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let(scale_factor = lerp(1,r2/r1,layer/layers))
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rot(180/count, p=[pt.x, pt.y, layer*knob_h-layers*knob_h/2])
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scale([scale_factor,scale_factor,1],
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(layer%2)? [pt.x, pt.y, layer*knob_h-layers*knob_h/2] :
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rot(180/count, p=[pt.x, pt.y, layer*knob_h-layers*knob_h/2])
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)
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], [
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], [
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[0,0,-layers*knob_h/2],
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[0,0,-layers*knob_h/2],
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[0,0, layers*knob_h/2]
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[0,0, layers*knob_h/2]
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