Pimax KDMAS Bass Extender

This mod replaces the ear cups that attach to the headphones on the PImax deluxe modular audio strap (kickstarter edition) also called the KDMAS.

The headphone-to-ear distance on the KDMAS is not adjustable, so they can sit too far from your ears if you have a narrow head. This results in the loss of a lot of the bass. Extending the length of the earcups to push them closer to your ears will restore the bass and sound a lot better.

Instructions
Simply pop the earcups off the headphones and carefully remove the ear cushions (they are pretty easy to remove, but a bit trickier to install). Install the ear cushions onto the new Bass Extender earcups and push them on the headphones. Done.

2020-12-19 Version1 (5mm): This will move each earcup 5 mm closer to your ears.
2020-12-20 Added 10 mm option: moves each earcup 10 mm closer.
2020-12-22 Added adjustable version (6-18 mm)
2020-12-28 Added chamfer to remove need for printing supports (thanks alanjames1987 for the suggestion)

Printing: print the model as situated in the STL file.

Tested with PLA at 0.2 mm resolution, other resolutions might not fit as well (but will probably be fine).