Sliding Carriage & Track for Filament Rack System

Sliding Carriage solution compatible with the “Filament Storage System” by Printerly https://makerworld.com/en/models/1028236-filament-rack-system-spool-filament-holder

The carriage platform uses 4x 608 bearings (ZZ/2RS/?? doesn't matter). To keep everything in place there are some flat track pieces. My storage problem was limited height, but I could do 2 racks deep. This solution lets me move the front racks easily to access the rear ones.

The bearings are held in place with printed pins. Print these on the seperate plate just in case they spaghetti and ruin the carriage print. They are a tight press fit. The sample I printed in ABS, I was able to push in by hand. The (poorly tuned profile) PLA I printed required some assistance from the hammer. If you have issues, there is a plate of 97% scale pins. Just use glue if they don't stay in place. 

Note: One side of the pins is tapered, the other end is not so it's flush once installed.

The track pieces connect together fairly easy, and the tongue fits into the filament rack to prevent sideways movement. 

For the same width as the racks print:

1x Left End 

1x Right End

?x Middle Sections for the remaining racks

If you want to space the track wider than your racks (to hold it in place between two walls for example) print all middle sections for each rack, and use Bambu studio to cut the Extra Width End Spacers.

Carries at least 10x racks in height printed in PLA. Could probably go higher and it would still be stable but YMMV.

Happy Sliding!