Side cup that clips onto typical wheelchair. Flips over for cleaning. I’ve reached this this configuration by having previous versions break. This is version 7 and it is in 2 parts to fit my printer’s volume.

Printed at 80% infill for strength. The 2 parts go together using 1/8”x .5” screws with epoxy filling the grooves, also for strength. Install the slide lock with the cup in place and tilted over.