3D printer cabinet side wall modular spool holder.
For smaller (1Kg Prusament) use 2 parts, for wider spools - attach middle part. Or if you don`t need it - you can remove holder, but leave base and reuse for other accesories.
2 parts = 8cm (ideal for 1Kg Prusament)
3 parts = 12cm
Used standard bearings, Prusa provides with Mini spool holder (608zz)
Printed with 15% cubic infill and supports for holes.
0.4 nozzle, 0.2mm layer height.
Modified some blocks with infill 30% for strength near sliders and at holder base. Should be available at fullSet file.
Strength for this print is more, then enough to hold 2 - 3KG spools at ease.
Unfortunately was unable to upload Fusion 360 model files f3d
The author hasn't provided the model origin yet.