Instructions
(M8 can be substituted with no ill effects)
3 yards 5/16 rod
1 4" electrical PVC pipe coupling (center of spool)
2 round disks of plastic, the harder the better, no need to the top to be nearly as big as the bottom.
3 foot 1/4 inch OD tubing
2 1/4 inch wing nuts
2 5/16 washers
64+- 5/16 nuts
Epoxy for spool (remember don't epoxy the top, you need it to come off, don't ask why I have to say this)
5 608 skate board bearings
My unit is ruffly the same size as the Makerbot Filiment spool, and I cut the Rod in the following pattern
6 315mm (outside and 2 bottom support rods
4 115mm (4 bearing rods)
1 135mm (spool rod)
You will need to run a drill though the tube where the wing nuts grab it so it doesn't add friction.





