After a couple of false starts, today we cut the final sled! And basically, once you have cut the final sled all the other projects are the same.
We have not moved the parts from the temporary sled to the final sled, but everyone is happy that the machine actually works.
Our sled measured 18" horizontally, and was 1/16" short vertically, so that’s pretty good too.
The only problem outstanding is occasional loss of communication. This could get very frustrating very quickly, but for now we were lucky that the machine did not lose its position when it lost communication.