I have Mach3 on 2 PCs: one on my desk for design and one on my CNC for operations. I have added a rotary axis to the CNC, and this works very well.

However, because of physical machine constraints (ie space), the rotary axis is aligned with the Y-axis, not the X axis. Somehow I was able to get Mach3 to treat it as being the A axis, which fits in nicely with the standard screen set. This was done some time ago - pre-COVID.

I am SURE that I was able to get my desk machine to behave in the same way. However, just recently it seems to have forgotten this and the A axis on my desk is now aligned with the X axis. This is extremely inconvenient for design work!

I am sure that there is some way to swap the X and Y axes, but I cannot find it. I imagine that I used the same commands to swap the A and B axes - I think? But my brain seems to have gone fuzzy - Long COVID maybe.

Help? How does one do this?

Cheers
Roger

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