This cup holder snaps onto a 10-32 plastic clamping knob that I got from Ace. It's specifically for my plane to fit in a pull handle hole, as my pull handles have been removed. The large knob was necessary to make the assembly hand removable, so that it wasn't considered to be permanently mounted in the plane.
This is the knob (couldn't find it on the Ace site):
https://www.tractorsupply.com/tsc/product/hillman-deep-drawer-clamping-knob-7-8-in-diameter-x-3-4-in-stud-length-with-10-32-fine-male-thread-3288607
Anyone is welcome to remix this for other knobs, etc. I based it off of one of my stroller cup holders:
https://www.thingiverse.com/thing:4799819
| cessna_150_cup_holder.STL | 290.4KB | |
| cessna_150_cup_holder_-_thicker_walls_easier_print.STL | 314.7KB |
