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43 lines
1.6 KiB
43 lines
1.6 KiB
/////////////////////////////////////////////////////////////////////////////////
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// Module for a open box with rounded edges.
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//
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// Author: Maximilian Stiefel
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// Last modification: 26.04.3017
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/////////////////////////////////////////////////////////////////////////////////
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module open_box(width, length, height, thickness, allowance)
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{
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/////////////////////////////////////////////////////////////////////////
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// Vars
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/////////////////////////////////////////////////////////////////////////
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edge_rounding = 15;
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compensation = 2*abs(edge_rounding-thickness);
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width = width + 2*allowance;
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length = length + 2*allowance;
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/////////////////////////////////////////////////////////////////////////
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// Action
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/////////////////////////////////////////////////////////////////////////
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translate([0, 0, 0]) difference(){
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// Hull 4 cylinders which are compensated against the thickness
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// so the actual desired thickness/2 and edge rounding is always achieved.
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hull(){
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// x=0, y=0
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translate([edge_rounding, edge_rounding, 0])
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cylinder(r = edge_rounding, h = height + thickness);
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// x=width, y=0
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translate([width + edge_rounding - compensation, edge_rounding, 0])
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cylinder(r = edge_rounding, h = height + thickness);
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// x=0, y=length
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translate([edge_rounding, length + edge_rounding - compensation,0])
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cylinder(r = edge_rounding, h = height + thickness);
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//x=width, y=length
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translate([width + edge_rounding - compensation, length + edge_rounding - compensation,0])
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cylinder(r = edge_rounding, h = height + thickness);
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}
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translate([thickness, thickness, thickness])
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cube([width, length, height + 1]);
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}
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}
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