Spool holder, flexible width, without screws

I designed a spool holder with adjustable width.
It is also possible to print the "bearings" if you don't have any.
The print needs 8x Type 608 (8x22x7 mm) bearings.

From the files you have to print:

1x Fixed side
1x Movable side
4x Bolt
4x Pin
(4x "Bearing" - if you don't have actual bearings)

I printed everything with 20% infill and 0,3 mm resolution. Fits nicely.