Simple toroid winding wire holder

Simple parametric design to hold wire to wind a toroid easily.

The end cutouts are inset the same as the width, so the default version is 30mm long and 5mm wide (for a 6mm toroid hole) so wire held for one complete wrap is
2*(L-(W*2)) = 2 * (30-10) = 40mm wire per wrap.
One turn on my particular Toroid is 2* (5.33mm + 2.33mm) = approx 16mm rounded up
So to wrap 100 turns I need 1600mm or 40 turns on the spool.
Now simplified so you just enter how much wire you want to hold for one COMPLETE turn on the spool, the spool thickness is taken into account as well.

My first customizer job, to see how it works..

edit:seems the customizer is broken, so you need to have openscad (Get it anyway!)
https://www.thingiverse.com/groups/thingiverse/forums/site-issues-and-feedback/topic:26898

I will upload some different sizes anyway.

done, format is wire_length_per_turn,spool_width,spool_thickness
So for 1600mm of wire (100 turns) on my 6mm ID toroid, I need the 50_5_1 version, an