This Thing is a spool holder for the LulzBot Mini
I have been printing the leftover ABS from the Fortus 250mc we have at work. These spools have small groves on the ID that get snagged on the stock holder. I made this thing to replace the arm on the original holder. Just unscrew the 2 M5 bolts and replace with the adapter (longer bolts are needed).
This spool holder can easily be adapted to other printers. It provides smooth motion and easy filament changes.
See attached .PDF for a parts list.
Modeled in SolidWorks. I can provide the .sldprt files if anyone would like.
The bearings and 5/16 bolt should be a light press fit in their respective parts. The adapter needs to be tapped to 5/16 - 18 to accept the threaded rod.