Alunar M508 (also Infitary) ball bearing spool holder TUSH-style

A remix of Soeren_Stobbe's really clean design, resized to fit onto the Alunar M508. I believe the Infitary M508 is the same printer, so it should work there as well.

You'll need four (4) 608ZZ bearings. No screws or any other hardware is needed.

Modifications to the original design:

1. Size. The Alunar main frame is 90mm high and is 28.5mm between the front of the frame and rear LCD acrylic panel. This is design to 'rest' on that acrylic frame behind the LCD panel electronics.