SMD Component Reel / Film Reel Holder/Hub (parametric)

Hub for SMD Component / Super 8 Film reels.
Reels are varying widths so holder needs customising.
Holder is in two parts which lock the reel in place.
They fit over a bolt (eg a shoulder bolt), with a spring to lock the cap castellations into the rod.

Design is optimised for building with minimum support.

If you need one of these you might also need http://www.thingiverse.com/thing:482051