Misumi collection: spool holders and NEMA 17 motor holder

These are 3 things: spool holder for 60 mm filament spools, rod holder for universal ball bearing spool holders and nema17 motor holder for bowden setup.

So rod holders. I use these http://www.thingiverse.com/thing:545954
But it should fit to http://www.thingiverse.com/thing:124649, http://www.thingiverse.com/thing:127181, http://www.thingiverse.com/thing:173204, http://www.thingiverse.com/thing:596838. Generally I think that fancy frictionless ball bearing spool holders are not so good beca