Filament roller experiment

Update: I updated the rollers due to problems with almost empty filament rolls; they aren't heavy enough and the friction just tops them off the holder.
The new rollers are based on bearing idea I saw in Thingiverse some time ago. I didn't find the thing, but modeled my own. Rolling just fine. The model has tolerance of 0.1mm. Use horizontal compensation. feed rate etc. to make them print properly.

Wanted to test some ideas and needed better, adjustable filament roller. Soo I tested my ideas by creating this filament roller.

The roller parts need some lubricant, I used PTFE spray and/or some silicon grease. Still they don't roll too well in this application so I might replace them with something else. Doesn't seem to matter, filament rolls glide on them so it still works fine.

Highlights:
- only printed parts
- adjustable for different size spools

BOM:
4x axle.stl
4x washer.stl
4x nut.stl
4x roller.stl
4x foot.stl
1x big_nut.stl
1x frame_parts.stl
1x frame_nut.