It's something to do with version 3. before that I had no problems. And it's not just on the delta either.
The flashforge shows reversed text but prints fine.

Yeah the nuts need to be about 1mm thinner to actually turn in the channel.
Other than that, they look great and are certainly strong enough to hold most things. Printed at 0.2. 3 minutes per - saves 20p per knut :-)
Damn fine idea.

I loaded up the basket at reprapmall with about $100 worth of filament, but wanted another $74 for postage. Which begs the question how the hell do they offer free postage on the printers ?