(Yet another) Replacement spindle for the filament spool holder on the Wanhao Duplicator i3 series printers...with:
- Larger diameter for smoother filament dispensing.
- Over 80 mm of useful shaft length to accommodate even uncommonly large spools.
- All overhangs comply with the 45° rule. (Print on end, with threads up)
For tall, skinny Makerbot spools, check out driph's remix.
While Fusion 360 automatically adds a bit of tolerance to threads, a lot of people have had trouble with getting the nut to fit. To that end, I've added a version of the nut with an additional 0.1mm of tolerance. Hopefully that should solve the problem.
Note: This does not work with the stock nut. I wish I had designed it to do so, but it was the very first thing I designed in Fusion 360, and I wasn't prepared to try to match the thread sizes, sorry.
Monoprice Maker Select Plus
Looks and works good at fast print settings.
Print spindle with threaded end up, no support.
Print nut with flat side down, no support.
After about 9 months, my original print finally broke (while off the printer)-- the threads snapped off of the spindle. For this reason, I'd recommend going with more shells...at least 2, maybe 3.