This cup holder support is designed to fit under the wheelchair cushion and is secured to the seat pan with Velcro. The cup holder mounts comfortably between your knees and keeps your drinks within easy reach.
This support is for either of my wheelchair cup holders.
If you are familiar with your slicers advanced settings, you can set the cup holder support end to print at 40% and the rest of the seat pan base can be printed at 15%. This will save you filament and time without compromising strength.