5 ms·
This is far from trivial, there is significant control needed to keep the gears in sync and track the relative position of the main spherical gear.
by samwillis 4y ago
This is far from trivial, there is significant control needed to keep the gears in sync and track the relative position of the main spherical gear.
- calvinmorrison 4y agoSignificant like more than someone can do with a 3d printer and two stepper motors? I don't know... I just feel like this would have been solved. Looks like an old mouse, except it has a motor instead of a sensor
- calvinmorrison 4y agoand here's a very similar article from 2008.. "A new kind of spherical gear and its application in a robot's wrist joint"
- addaon 4y agoThis 2008 paper seems to describe the mechanical and manufacturing side of a 2DOF spherical joint, not a fully-realized actuated 3DOF spherical joint.
- jacquesm 4y agoIt's not even close.
- sacnoradhq 4y ago[flagged]
- bqmjjx0kac 4y agoA mouse ball has two degrees of freedom, but this spherical joint has three.