pic: Another stripped VexPro gear

[techhelpbb]

Originally Posted by LSanchez439

When you say 'broach' them some steel gears, what exactly are you referring to?

Buy a gear with a 1/2" round hole (also maybe a keyway) and push broach it 1/2" hexagonal.

The push broach looks like this (this one is from Dumont):
http://www.andymark.com/product-p/am-2204.htm

It fits in either a hydraulic or arbor press.

The 20 tooth steel gear I did for other teams look like this before I broach them:
http://www.andymark.com/Gear-p/am-0186.htm

You know that intelligence test where you put the round peg, in the round hole and the square peg, in the square hole?
In this case you push with about 1,100lbs of force until the round hole chisels out to a hexagon
Proving once and for all - brute force can solve problems.

[MVCI]

Is the output direct driving a wheel (ie output shaft going through a rigid frame)? Look into the possibility for relative motion between the output gear and its driving gear. This could be caused by loose transmission mounting or flexing of the plastic case. With extra load/impacts on the gears being part of this game and improper gear mesh (caused by relative motion between gears) I imagine this could easily happen.

[Reptilefox]

That exact thing happened to us (3230) at the Idaho Regional!