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OpenSCAD Paste

include <BOSL2/std.scad> cir_rad = 20; r_offset = -8; wallThickness = 0.5; base_start_layer = 4; module epitrochoid(cir_rad, r_offset){ offset(r=r_offset) for(i=[0:120:360]) translate([cos(i)*20,sin(i)*20,0]) circle(r=cir_rad); } module slice(bottom){ linear_extrude(1) difference(){ epitrochoid(20, r_offset); epitrochoid(20, r_offset - wallThickness); } } for(j=[base_start_layer:1:30]){ scale([log(1*j*j),log(1*j*j),1.5]) translate([0,0,j]) slice(false); }
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