I would request some calibration models. Someplace there was a description of hand editing Gcode to print at multiple temperatures to help pick the right one. This and similar calibrations would be great.

Based on this forum it looks like the V4 hot end has been through its beta cycles, is ready for prime time and is in all respects preferred over the V3b. In getting a new M2, it would seem much better (and cheaper and less confusing) to just start with the V4. Is there any reason that new M2s would ...

I have just ordered a M2 as the first printer for me and my son, very excited to get started! :D While we will start with PLA to get our feet wet, we do want at least one other "goto" material that is stronger and more heat resistant. I'm looking for thoughts on those materials, what works with the ...