[Thad House]

Originally Posted by Dunngeon

To be honest, we weren't sure how the cantilevered shafts would affect the 2x1 bearing holes. Last year our shooter utilized 2x1 with bearings mounted directly into the 2x1. Over the season, the pressure caused the holes to ovalize. The forces aren't equivalent, but the construction is. I linked a picture of our shooter mechanism (JVN Cam).

I wasn't aware you could add cams to this type of bearing block

Those blocks are designed to be put in slots and moved by cams. That's exactly how our drive worked last year. If you use the blocks, it doesn't hurt to slot them and make them slide.

EDIT. Andrew beat me to it.