I added axis for spools with inner holes of 19mm.
If you want additional axis, leave the comment.
Update filament guide
I changed the filament guide part and now filament have enough space to move around. Much better as previous design. Part is with support.
Top mount spool holder for CraftBot 3D printer.
You can mount holder on both sides of your CraftBot printer. No need to use additional screws.
It is possible to use also 2.3 kg spools.
Part filament-guide is work in progress.
Layer height: 0.3 mm
Shells: 3 (5 for spool-shaft)