Mistakes Were Made

One of my favorite shot ever is an early shot I did with rubber bands stretched across a frame and hit by a pellet.

 

I go back to it with almost every new launcher I build.

 

This was a strange shot. My timing with the steel bearings has been very good, almost zero problems. I was noticing, though, that loading the marble was getting rough. So I sprayed some oil down the barrel and ran the bearing up and down the barrel a few times.

 

This was the first shot after that action. The timing was way late. I thought maybe the lubrication had changed the speed drastically, but the next shot was as expected.

 

One time fluke.

 

Cheers.

Done