4th Axis Posting going from + to - 355 in few lines posting with MC2021
Hi, hoping to get a better understanding of what might be happening when I try to post an operation, whether roughing, finishing, contour, etc.
I have a simple shape as a test model that *should* just rock the A-axis back and forth to roughly +7.5 degrees, through 0 degrees, to -7.5 degrees, 0 deg, and repeat. If I simulate the operation Mastercam shows me exactly what I would expect it to do.
When I post the operations when using the default machine (Default.mcam-control) and post (MPFAN,pst) it jumps back and forth from positive to negative and if I were to run it would cause the table to rotate 2 revolutions without lifting the tool instead of a 10 degree sweep across the 0 degree mark.
So... I'm confused. The A-axis rotary under Machine Definition shows it can support continuous positioning, signed continuous and the max travel limits are super high, but even changing the travel limits doesn't seem to do anything.
Does anyone know if this is because the default/generic machine needs to be changed or is it a post processor issue? At this point it's *prior* to being able to run on any machine. I also tried adding a 4th axis to our existing Fadal config that was supposed to be good for 3 or 4 axis setups but that's doing it too.
Re: 4th Axis Posting going from + to - 355 in few lines posting with MC2021
Quick update on this... it appears the post processor isn't actually reading the machine definition like it should so I'm hunting that down. When I manually hardcode the post to have the machine setup I want (just setting certain parameters that aren't carrying over) then the code outputs as I would expect. I've got some more research to do but I have an idea of the root of it.