Simple 608 bearing spool holder for Ultimachine spools
by epengr, published
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Great, I'll be printing out two today. I just got the larger spools from ultimachine but was surprised to find that the larger spool has a smaller hub size.
Oddly enough, I feel that my spool is actually working better without the swanky bearings. With the bearings in place, there's so little friction that the filament on the spool starts unwinding itself. I haven't seen any complaints on this with any bearing-based hub, though. Does anyone else have this problem?
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The bearing recess is tight fit, you can warm the plastic to help press fit it in.
With the two bearing in place, sandwich the spool between them and run a 8 mm (or 5/16") thread rod though the bearing. Snug a nut on either side (not too tight). I'd suggest another pair of nuts to lock the first two in place.
You can figure out a mount yourself, either hang it as I have done, mount one end of the thread rod to something, of set the rod across a stand of some kind.
Enjoy your nice, smooth turning, spool mount!
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