Well that is the most ambitious first cut yet!
Do I see two machines being build?
Good observation but no The board is 5 mm thick. I cut an extra set in case I decide to double up for extra strength. However, I just tried doing a dry fit a few min back and I am not sure if there is enough clearance there. So, I guess I will just leave out the extra set.
Ryan made some adjustments during beta test to accommodate a thicker strut. My first set did not work well as you can see in my build thread