Konica Hexanon 57mm f1.2 focus gear "D" type lens
Could find one of these anywhere so i decided to model it.
This works on the Konica Hexanon 57mm f1.2 "D" type (the one with a rubber focus ring)
You might have to play around with the scale so it fits snuggly.
The scale is perfect if printed on a bambu labs X1C using PLA-CF
I have included a X_T (Parasolid)