[seg9585]

Originally Posted by T3_1565

Looks good! I like how your intake was used to help you over the ramparts.

I also love seeing it drive slowly over, Gives a much better sense of what is happening.

Quick question: What is your wheel psi? Have you played around with that number at all yet?

We are hoping to have something driving tomorrow so its something I'm currently thinking about! lol

We use the arm as leverage for the ramparts and some of the other obstacles to position our CG. The arm is actually strong enough to pick up the middle wheels if we got stuck anywhere (another part of this test). We drove over the obstacles at both slow speeds and fast speeds to look at the dynamics of the wheels and impact angles after crossing (especially landing after the rock wall).

Great question about the pneumatic wheel pressure -- we first tested with pressure maximized at the tire's pressure rating (32psi?) and the robot was very bouncy (you can see that here). For the tests in the original thread, we lowered the pressure to about 10psi and below which gives us great dampening and more surface area to get traction. We are still trying to decide on our final pressure but we know it will be low.