45 RPM Record Adapter (Openscad)

prusaprinters

I modeled this for the contest using Openscad.  Jurriaan already had a similar item https://www.printables.com/model/28489-45-rpm-record-phono-adapter which was in turn based upon another.These might be fun as a retro decorator item.  String them into a necklace or a tree garland. module disk() {  cylinder(1/16*25.4,1.5/2*25.4*1.05,1.5/2*25.4*1.01,$fn=100,center=true);  cylinder(1/16*25.4,1.5/2*25.4*1.01,1.5/2*25.4*1.05,$fn=100,center=true);}  difference() {  disk();  cylinder(10,5/16/2*25.4,5/16/2*25.4,$fn=100,center=true);  for(th=[0,120,240])rotate([0,0,th])relief();  for(th=[0,120,240])rotate([0,0,th])relief2();}module relief() {  for(th=[0:1:60-5]) {     hull() {        rotate([0,0,th])translate([(1.5+1/16)/2*1.01*25.4,0,0])cylinder(10,5/16/2*25.4,5/16/2*25.4,$fn=100,center=true);        rotate([0,0,th+1])translate([(1.5+1/16)/2*1.01*25.4,0,0])cylinder(10,5/16/2*25.4,5/16/2*25.4,$fn=100,center=true);     }     }   }  smidge=.17;module relief2() {  for(th=[0:1:130-5]) {     hull() {        rotate([0,0,th-77])translate([(1.15-th/200+smidge)/2*1.01*25.4,0,0])cylinder(10,2/32/2*25.4,2/32/2*25.4,$fn=100,center=true);        rotate([0,0,th-76])translate([(1.15-(th+1)/200+smidge)/2*1.01*25.4,0,0])cylinder(10,2/32/2*25.4,2/32/2*25.4,$fn=100,center=true);     }     }   }