No spill cup holder (gimbal)

thingiverse

These things work incredibly well. As long as you don't bump the hanging tray, you can literally jog with this and not spill a single drop. I've always wanted one, so I made myself one. We have some big 130mm coffee cups, so I designed it large enough to accommodate them. Even with a small tea-cup filled to the brim sitting on this thing, you can walk around carelessly and the cup never slides, and the fluid never spills. You can check out how well it works in action here: http://www.youtube.com/watch?v=Fo9SajeU2b4 Update: If you put a glass on it, the glass is very slippery on PLA, so you might want to spread a little rubber cement on the platform to help keep the glass stable. It's just a minor tweak to ensure everything stays in place. Update 2: On further consideration, I realize that this design uses way too much filament and could be significantly lighter if simplified. I'll need to revisit the design and make some adjustments to reduce its weight without compromising its performance.