I received the set of printed parts from Nophead last night.
It took me two weeks of spare time and hours of drilling, grinding and sanding to get all the subassemblies for the x-axis built using the cast parts. Even then, they didn't align properly when it came to installing them on the rails. With the properly printed parts I was able to build all of the same subassemblies in 2 hours and all of the holes for the rails align so they should go together just fine. I hope to have the whole x-axis together tonight if I get some free time. Since it has been raining here for days that seems likely.