PROTOTYPE #9

The launch tube is still attached to the prototype. We changed the sandpaper wheels into rubber wheels.
This is the best prototype up to now. The ball goes further and higher than the first wheel-system-prototype.

CONCLUSION

Expected positive feedback:
The ball goes higher and further then before. And the ball isn't affected.

Unexpected positive feedback:
/

Expected negative feedback:
The launch tube isn't steady enough to launch the ball in the best way every time.

Unexpected negative feedback:
/

Makeability score: 2