Hi, i'm reviving this thread because i have another issue.
The machine is working well with the 7i96, and i decided to upgrade the stepper motors with step/dir driven bldc servos.
I bought one, i installed it and from the first test it looks very promising. At that point i decided to try to push it as it should be able to reach 3000RPM without any issues (that would translate in a whopping 30m/min rapid speed!), but i can't seem to push it further that what i did with stepper motors.
The problem is that i run into a "following error" as soon as i try to go beond 7000mm/min on that axis. I also tryed to push to the limit the X axis which is still driven by a stepper motor, but that also generated the same error (at a higher speed, as the X axis is driven with a belt with a different ratio).
What could be the limit in this case? 7000mm/m with a scale value of 401 isn't really even close to reaching the 10MHz limit of the mesa board ((7000/60)*401)= 46'783 pulses/sec). Am i reaching some kind of limit with the servo / base period of linuxcnc? Or is there something else wrong with my configuration?
