O-Ring for Card Shooter

thingiverse

This is an O-Ring that fits the Playing Card Shooter by LoboCNC, which can be found here: https://www.thingiverse.com/thing:961084 Not sure if this is technically a remix, really it's more of an addition. I ordered the skate-bearings off amazon, but thought I might be able to print the O-Rings with flexible filament rather than buy them. It worked great! I use this card shooter in my trig classes when we are talking about angular speed and linear speed. The lesson is here: https://graspthemath.files.wordpress.com/2018/05/angular_linearspeed.pdf I printed one to use in class, and one that comes apart easily so I can show how the gears work under a document camera. That is the reason for the black lines I sharpied in - it helps show how fast the gears turn.