Hi Ryan. I have been playing with Grblgru the last while. The author has made a program that can simulate virtual CNC machines as well as generate and run GCode suitable for Grbl, TinyG, G2core and now more importantly GRBL Mega 5X. This last flavour of GRBL Mega 5X you may know runs on a regular Arduino Mega with or without a RAMPS board and is easily capable of 5 true axes (and maybe 6 in the future). Most of us would like at least a 4th axis. I am running on both my MPCNC and LowRider V2.
Grblgru’s author has recently adapted his program to run with Grbl Mega 5X as well as simulate a true fourth axis for now. His manual has been in German but we have been working to make an English language version. He also has many YouTube videos.
He has made many ‘popular’ CNC machine models available within Grblgru but neither of the V1Engineering machines. What is required is an STL file for each axis, then he is able to generate an animated virtual version of that machine. He has never dealt with the way your machine axes work but is up to the challenge. I was wondering if you might already have such STL versions of the MPCNC and LowRIder V2 that you might be able to share with me or directly with Grblgru? It would save me having to figure out how to retroactively design the two machines and speed up the process. If not, let me know and I’ll try to make something appropriate but not as pretty as your photos ha ha. He usually colors the different axes as you see in the attached photo for all the different types he already has. Oh, BTW the program is fully functional and Free from Grblgru.com