Prusa spool holder remixed

I printed the awesome spool holder made by SoundDoc but there were a couple things I wanted better. First, the original will not work on the Prusa i3-mk3 frame and this one will not either. This one, just like the original can be mounted on a shelf. Second, I didn't like the way the rollers came out. Following a comment, I printed the rollers from the spool holder made by MartinMajewski and they worked perfect. After assembling everything I noticed that the rollers could move laterally between the base_post_screw and the base_post_screw_cap. So I reworked the cap to make the shoulder the same diameter as the inner part of the bearing. This way the cap and screw shoulders tighten against the bearing preventing lateral movement.

Since the mounts won't work on an i3-mk3 I welded a shelf made from some 14 gauge steel and mounted it to my filament rack. Orientation is sideways from the stock spool holder which I think works much better.

The base, base_post_screw, screw, slider