We (personally) purchased an AirWolf AXIOM 3D Printer in January and have used is a ton since then, even for parts for the robot this year. Very easy setup, no issues and a ton of filament support. We even printed PolyCarb for our motor protectors on our shooter as well as our Camera holder/protector.
Our larges print was our battery holder this year out of PolyCarb and it held up all year even with the tough defenses and batteries fit perfect with a nice velcro strap (even though it did not need it) on top.
I just sent it back to AirWolf to have the dual extruder installed so we can do multiple media as well as multi-color.
So far best printer we have used by far and cannot wait to get it back with the dual extruder.
It is a bit pricey, but worth every penny so far.
www.airwolf3d.com