Watching a video posted by Barbatos Rex, he was showing some PVC pipe end caps a subscriber had sent him to try as a stabilizer for the 30ml plastic cups he used for mixing and thinning paints (used in the medical industry for giving pills and liquid medications to patients); because of the shape of the cups, he had problems with stir sticks making it easy for the cups to tip over and spill paint across his desk.
The PVC end caps only enclosed a small part of the bottom of the cups, and didn’t seem to provide much stabilization; remembering support bases I’d 3D printed for the square bottles Tamiya uses, I thought I could quickly make a design for these cups. With a bit of tinkering in OpenSCAD, I whipped up a stand the cups can sit in that makes them considerably more stable:
After I verified that everything fit properly, I posted the STL model up on printables.com for anyone to download and print for themselves, so if you use these small cups for mixing or thinning paints, you can download and print these holders to end the risk of tipping them over.
