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This is version 2 of my omni-directional tank.
The tank is omni-directional. That means it can move forwards, backwards, and left and right, or diagonally, or any combination out of 360 degrees. It can also turn on the spot.
Each track has little wheels mounted in each segment which allows them to slide sideways. This is really similar to other omni-directional robots I’ve built which use various types of omni directional wheels.
This seemed like it worked well, but it was really bad at climbing over things, which is what tanks are generally supposed to be good at. Two tracks at an angle like that just slipped on the edge of most objects and it couldn’t get traction. Also, as the front of the tank was lifted up, the back edge was pivoted off the ground, which didn’t have any drive in that direction anyway.
The main suggestions to improve this from the comments on the original video were to make the track style a trapezoidal shape like a traditional tank, and also to have each section able to pivot so each track can comply with the terrain.
Also at least one person suggested moving the little wheels in each track segment to the outside of the tracks so that they can help grip better on the corners as the track approaches objects.

CAD & code: https://github.com/XRobots/OmniTracks...

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CAD and Code for my projects: https://github.com/XRobots

Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside out-Farm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon.

HARDWARE/SOFTWARE

Below you can also find a lot of the typical tools, equipment and supplies used in my projects:

Filament from: https://www.3dfuel.com/
Lulzbot 3D Printers: http://bit.ly/2Sj6nil
Bearings from: https://simplybearings.co.uk/
Lincoln Electric Welder: https://bit.ly/2Rqhqos
CNC Router: https://bit.ly/2QdsNjt
Ryobi Tools: http://bit.ly/2RhArcD
Axminster Micro Lathe: http://bit.ly/2Sj6eeN
3D Printer Filament: http://bit.ly/2PdcdUu
Soldering Iron: http://bit.ly/2DrNWDR
Vectric CNC Software: http://bit.ly/2zxpZqv