No worries! I am slowly adding all the necessary information to my GitHub.
[attachment 25441 gusplate.png]
The only thing that is really important is that you have the M8 holes located on the verticies of a equilateral triangle with 250mm sides. (You can actually change that dimension. Smaller=Bigger Work Envelope. However, the bigger work envelope starts to get harder to use for standard parts.) It is also important to have room for the shoulders to rotate through 60 degrees. Other than that you can make some fun shaped GUS beds. I just happen to like constant width shapes.
[attachment 25442 WORKENVELOPE.png]
The work envelope will get wider and taller the closer the shoulders are together. However, you start losing the area behind each shoulder.
[attachment 25441 gusplate.png]
The only thing that is really important is that you have the M8 holes located on the verticies of a equilateral triangle with 250mm sides. (You can actually change that dimension. Smaller=Bigger Work Envelope. However, the bigger work envelope starts to get harder to use for standard parts.) It is also important to have room for the shoulders to rotate through 60 degrees. Other than that you can make some fun shaped GUS beds. I just happen to like constant width shapes.
[attachment 25442 WORKENVELOPE.png]
The work envelope will get wider and taller the closer the shoulders are together. However, you start losing the area behind each shoulder.