[MikeBrock]

Ah yes, I am aware of the wheel orientation. I was quickly making a CAD and just used the mirror component tool. And yes, I am well aware of the individual power to each wheel.

As for the cantilevered shaft on the arm, I totally missed that, my apologies. It should be constrained in the center.

As for recoil, we are not worried about that, we plan on taking very close shots with this design so one pneumatic piston will be enough for power. We may add some sort of spring and release mechanism. The roller on the cradle of the arm is not in the CAD, but you might be able to see the mounting holes for it. Once I fix the CAD you will be able to see how the arm can swing down with ease to suck a ball in.

The frame is now going to be welded. Thanks for that suggestion.

-MB