Topic: Ultimate Spool
I'm designing a spool that can be printed in one piece.
Here's a prototype, scaled to approximately the size of a cupcake.
PLA at 0.4 mm layers and 33% infill.
There's plenty of room to remove material. I haven't started with that yet.
OpenSCAD code
difference(){
cylinder(r1=10,r2=5,h=5,$fn=50);
cylinder(r=2,h=10,$fn=50);
}
translate([0,0,10])
difference(){
cylinder(r1=5,r2=10,h=5,$fn=50);
cylinder(r=2,h=10,$fn=50);
}
translate([0,0,3])
difference(){
cylinder(r=5,h=10,$fn=50);
cylinder(r=2,h=10,$fn=50);
}
The angles are nearly 30, 60, 90.