I've accurately made the bridge to exactly the size I want.
The 3D printers weren't even on today. I tried with the small white printer but it just didn't want to work.
I found out I cant even print this bridge on the two little printers, it will have to be on the makerbot because of how long it is: 22cm.
I've emailed Chris and will hopefully hear back on Monday.
All my stuff is ready for printing and I've got plenty of copies for safety.