Topic: A Little G-code/M-code test
I mentioned in some posts the stock firmware appears to have hard-coded pre-heating of bed and nozzle, and that Repetier does not and does respond to M-codes.
I have the stock firmware but, I’m considering upgrading the board, extruder/etc… But, before I ‘bite that bullet’, I’d like to know if someone with modded firmware, different board, and/or Repetier… can run the attached G-code file. There are two of them (only difference is header info).
Either way, the bed and extruder will go to position’s but, I want to know if it reads the M-codes and does what I intended - if it does, not only will it go to positions, the Temp’s will go to 40ºC and extruder will pause for different times (testing Dwell commands). Then, it returns home.
Thanks in advanced to the curious and helpful ![]()
Below are screenshots of referenced code info


Prusa i3 (two built from kits), 1 hacked DaVinci
Solidworks for models, Netfabb to repair, Repetier/Slic3r and Simplify3D
