/challenges-projects/design-challenges/makelifeaccessible/b/blog/posts/color-er---update-2In my first update , I've mentionned that 3 forces were needed. Obviously, I can't really use 3 actuators (1 motor and 2 linear actuators or 3 motors...), that would be overkill for such a device. Ideally, a single motor would have to be able ...en-USTelligent Community 12