Please find attached my spool holder design for the UK based company 3DQF's filament rolls. (https://www.3dqf.co.uk)
this is for their newer 35mm holed cardboard and metal spools.
I have made 2 versions:
1: For a standard 8mm threaded rod
2: For a 19mm rod. Like ones that tend to be used in DIY filament storage boxes.
the end cap will fit both versions 19mm/8mm.
I have also included the test thread piece I slice off the top to allow you to test your printers tolerance with the threads without printing the whole spool holder.
I hope this helps some else other than me. Plus it helps me learn fusion 360.
(Actual Pics to come i don't have enough time to print a full one yet will do when home sunday)
3DQF's Jetblack PLA