prototype spool winder

This is very much a work in progress, just a basic idea really, put it on so better designers than me can input or change/improve
I am working on both mechanical and electrical ideas to link the spool mechanism to the cam mechanism.
Mechanical gearing for 1.75mm filament a ratio of 30 to 1 is about right
for 3mm filament 18 to one would be resonable
Not electrical minded so have a friend working on stepper motor drive,
I will add the threads to