Team 3992 Launcher - Help w/ Vibration?

[jkessler_22]

Originally Posted by ksafin

Hello all.

We just recently got our launcher working to the distance and height we'd like:
http://www.youtube.com/watch?v=RWVur...ature=youtu.be

However, as you can see, there's IMMENSE vibration which is moving the frame and keeping us from being consistent.

Any suggestions? Some issues we think may be causing this:

1) Pneumatic wheels aren't true (even) they have some kind of wobble to them.
2) No bearing/support at the top of the shafts for the wheels

Thoughts? Suggestions?

We have had good success by placing 0.75 oz of stick-on weights (Harbor Freight or other places sell them) in the open space on the plastic wheel hub , directly across from the valve stem. It made quite a difference without doing anything else.