OpenSCAD Simple & Smart Spool Holder

This is an OpenSCAD crafting of a spool holder very much along the lines of dagoma's inspired design. Easily tweaked for the size you'd like by changing parameter values and re-rendering.

Noticeable differences from the original are the pre-formed countersunk screw holes for attaching to things, and the top of the axle is a cone rather than spheroid.

Provided here are STL files for the two independent parts, and also versions with adjacent discard-able towers (these make for a more reliable print when the layers are small).

Note that if you increase $fn, be prepared to wait a long time for the wheel to render! I recommend switching off "Automatic Reload and Preview" if you go high on $fn...

See the source file simple_holder.scad for more commentary and details.