Quote:
Originally Posted by Dunngeon
True, but traditionally 8WD setups have raised both the front and rear set of wheels to shorten the wheelbase length to promote turning.
With the shorter robots, it's possible to drive 6wd without a drop center fairly smoothly. With the further shortened wheelbase provided by the front wheel being raised, I'd imagine it's pretty easy to drive the other 6 wheels...... Although I'm still not sure exactly why they chose 8wd with only a single set of wheels raised.
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Depending on where your center of gravity ends up on the final robot, you can adjust which wheels you raise/drop and by how much, because your frictional/scrub force will be greater in the areas close to the CoG. All about the weight distribution.