Cannot get collision between ball and Teeter Totter

I am working on a rube goldberg machine and everything was working fine until i added a teeter totter. The yellow ball passes right through the teeter totter. I have tried turning on collision for both the ball and totter to no evail. All the other objects do not have collision turned on, so i don’t think it is needed. Without collision, same result.

Try centering your origin to geometry and then apply your scale and see if that helps. Mesh objects get crazy.

Tried that, origin waqs off, but made no difference still moves right through totter. I attached revised blend with origins correctly positioned.

Did you clear your scale, Control A scale?

http://www.pasteall.org/blend/40469

Did that and it corrected the problem, thanks