Warped front plate  

Warped front plate

I started assembling my MK3 this weekend and didn't make it past frame assembly. After tightening and loosening screws for over an hour, I discovered that my front plate is slightly warped. I can slide about 8 pieces of printer paper under one edge of it when I press the other edge flat. I also noticed that if I stand it up and press one side of it level with my surface, the other side raises up (not sure if this is normal or not).

I chatted with support and they recommended I "tighten while pressing the plates to let them be slightly turning outwards". He also said to send them an email with more details, which I did. I'm not entirely sure what he is describing and I am concerned that I'll bend another part of the frame trying what he describes. Has anyone else had a similar issue?

To prove that the bent plate was the cause, I took the frame apart and assembled it with the short extrusions on the inner set of holes so I could attach the front plate to those and the rear plate to the long extensions. When I did that, the corner of the frame that lifted was on one of the short extrusions (it was on a long extrusion when assembling the printer normally). I also tried flipping the plate around to see if that improved things, but it did not.

https://imgur.com/a/akO8T shows the gap under one edge when I lay it flat.
shows the rocking motion when I stand it up.

Thanks