I Challenge You: Driving Ball Machine!
I know, it seems impossible, but it can be done, if you think about it:
A driving ball machine!
A hint if you dare to try:
Try to connect the axle to the ball lifter.
It will make the construction lighter and with that, more room for ball machine surface.
Anyway, dare if you're cool!
Run, if you scared!
Best of luck, dudes!
Link to the group.