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Re: Long vs. Wide Drivebase
My team was initially favoring a wide base over a long base, for the reasons mentioned above. This changed when our prototype shooter bot almost tipped backwards when I lifted its front wheels onto the barrier. Our current design is now a long base with a hybrid mecanum/traction drive to aid in climbing the barrier.
I think that teams are underestimating the difficulty of crossing the barrier. It will be very difficult or impossible to do with 8 inch wheels or smaller, unless you have a way to change your wheel's initial contact point on the barrier. The necessity of large wheels or other chassis shenanigans will reduce the length of the wheelbase and make a wide configuration less advantageous.
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