A1 Mini SpoolAdapter V3

This is V3 of my Spooladapter for the A1 Mini. On the V2, the friction got lost over time, so the adapter started to rotate with the spool. also was the width a little tight. so i made a few optimizations: now there is an arm which is extending in the frame of the spoolholder, preventing the rotation.the width for the spool is 5mm wider and the radius is smaller, so spools sit more loose on the adapterand i decreased the flange size, so that putting a spool on it is a little easier. just stick the top part from above to the spoolholder and then slide on the bottom part. happy printing!