This adapter works with all spools with an inner diameter of 5cm to 6cm.

The problem is that the resulting spool often is too wide for the ams. Therefore this only works for spools up to 6cm wide. If you cut off small unnecessary plastic notches on the ams this should work up to 7cm. With the AMS hydra mod, there shouldn't be any problems. But I haven't, tested it.

The side B with the screw may be printed with 100% infill

Heres my eryone asa spool with the old burn marks if you use the ams without the adapter. You can ignore the insulation tape- I put it there to test if it will work with wider spools but without success.