Gretsch Junior Jet G2220 bass parametric pickup ring
Didn't feel like cutting my pickguard or drilling new holes, so I made this - in case you ever feel like replacing the custom-sized pickup, or custom-sized pickup ring, on your Gretsch Junior Jet bass.
Fits a full-sized humbucker by default (cavity is big enough for a drop-in replacement). Edit pickup hole size and pickup screw distance parameters to fit. All measurements in mm. Also allows for 2D projection if you want to e.g. export it to DXF in OpenSCAD for CNC cutting.
Edit of Parametric Pickup Ring.