I was having issues with my 2.5kg spools being damaged by my beloved parcel service.
I was unable to use my rolls (see pictures of the dents) so I was looking for a spool holder that would be able to carry the 2.5kg spools and was printable on my A1 mini.
This is not my design, I added all the single parts to the plates, adjusted the placing and some settings so it would work with my reduced space on the A1 mini.
All credits and thanks go to Ideenlabor: https://www.thingiverse.com/thing:2804147
For an assembly video visit above link. You have to glue the frames together and you have to glue the knobs together. Please follow the video for a correct assembly!