pic: Team 2022's Drivebase

[spage]

thanks- we got lots to people looking over our drive train at Wisconsin - they liked that it used easy to find parts- Post season plan is to teach the sophs to cad-

[keehun]

Wow, amazing drive base. I am wondering, will the CAD files ever be uploaded?

Thank you,
Keehun,
Captain, Team 2502

[JHSmentor]

So - did you drive this as a crab drive or did you switch between all wheels pointing in the same direction (crab) and having the front / back wheels pointed in opposite directions? Or - did you just drive with the front and back wheels turning oppositely?

I ask because our bot this year was a somewhat similar design but probably a lot more simple (we just don't have the equipment to do anything more fancy). We had Ackermann steering for the front wheels and Ackermann for the back wheels separetely so they would turn opposite each other. our experience was very similar: we could push any other bot around easily and in many cases, 2 bots at a time (no traction control used either). Having properly designed Ackermann steering allowed the wheels to point in the direction of the turn at all times so there was no slip required to turn.

[big1boom]

Originally Posted by JHSmentor

So - did you drive this as a crab drive or did you switch between all wheels pointing in the same direction (crab) and having the front / back wheels pointed in opposite directions? Or - did you just drive with the front and back wheels turning oppositely?

I ask because our bot this year was a somewhat similar design but probably a lot more simple (we just don't have the equipment to do anything more fancy). We had Ackermann steering for the front wheels and Ackermann for the back wheels separetely so they would turn opposite each other. our experience was very similar: we could push any other bot around easily and in many cases, 2 bots at a time (no traction control used either). Having properly designed Ackermann steering allowed the wheels to point in the direction of the turn at all times so there was no slip required to turn.

We had crab drive for most of the time, however, whenever the trigger on our steering joystick was pulled, and the stick twisted, the wheels pointed opposite directions for turning.

The reason we were able to maintain traction, was because we had less power than other robots. This made it so that we never broke into dynamic friction.