Quote:
Originally Posted by Andrew Schuetze
I am not a Discobot mentor however, I conjecture that the point of 4 wheel omni drive is to create as much turning ability from a tank steer drive-train as is possible on carpet. With just omniwheels on the front the robot pivots from the mid-point of the rear axle. You will notice in the video that this robot pivots from the center of the drive-train. Not a sweeping or gate turn but rather a point turn.
I too am interested in where, what type, and why they intend to add more wheels are posted by Andrew L.
Andrew S.  |
You can achieve the same zero turn radius spin with two omni and two traction wheels if the omni/traction wheels are at opposite corners of the robot. So if the front left wheel was an omni, the rear left would be traction, the front right would be traction, and the rear right would be omni.