Fits guitars up to 52mm thickness.

Prints without supports.
I printed in PLA with 0.2mm layer height, 0.4mm nozzle, 2 walls, 10% rectilinear infill.
180g filament.

Cut up X-Protector felt furniture pads to fit in the recesses for a soft surface for the guitar to sit on.

Update (2023-09-14):
* Added step file to make modification easier
* Added bumpers you can print out of TPU and attach with double sided tape
* Added stand-raised-base.stl with a raised portion on the footprint. Will need support to print. Probably only worthwhile if your printer is capable of using a support interface material.
* Also check out jangrewe's model here.