Originally Posted by Oblarg

Seems similar to what I was toying around with a few months ago.

Any reason why you appear to have the WCP cams with the milled-slot bearing blocks? I can't see how those work together.

Is there any support for those gearboxes other than the two visible bolts with the spacers on them? If those are it, I'd be worried about that. Not having the plate in contact with the framing member removes a lot of rigidity.