Adjustable Spool Spindle (ASS) for 21.5mm Plumbing Pipe

Update 31/05/2018
New design to fit filament 75mm diameter centre hole

Update 21/02/218:
Added cut aways to use less material. May use same amount though as supports will be required. Untested

Update 26-01-18:
Printed and tested and seems to be doing well.
Fits together nicely and keeps things in place.
Took around 1 1/2 hours to print at 0.2 layer height

Update v3 24-01-18:
Simplified to 2 parts
untested

Update v2 24-01-18:
I've added a single sided threaded spindle so you