Horizontal spool mount for Sunhokey prusa i3 (2015 version)
Had extra m3 nuts/bolts from the sunhokey kit so I made a spool holder with some 623zz bearings and 3mm rod I had.
1 - 20 cm m3 threaded rod or 4-40 threaded rod
4 - 623ZZ bearings
3 - m3 30mm screws
4 - m3 nuts
Take out 1 m3 bolt holding the acrylic top piece and thread rod into bottom disc then the nut in the acrylic frame. Careful when tightening the disc onto the frame it's easy to break the acrylic when the disc is turned too tight.
Option 1: Use bearing disc and 1 spool cone.
Like this (http://www.thingiverse.com/thing:31678)
1 nut for the bottom disc. 3 nuts to hold bearings on the m3 bolts. screw 3 bolts on the bearing disc. 1 bearing in bearing disc. My bearing was loose in the hole so i tightened the m3 screws enough to hold the bearing in place
Option 2: Use 2 spool cones no bearings needed.
Like this (http://www.thingiverse.com/thing:569454)
I found the bearings are optional for the spool cones. It spins OK without them.