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Author Topic: Mpg3 for Z axis on lathe  (Read 623 times)

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Mpg3 for Z axis on lathe
« on: June 10, 2020, 10:36:17 AM »
I have 2 mpg's working on my lathe. all was ok when on mpg1 for x axis and mpg2 for z axis. however now i  want to use a spindle encoder for speed reporting controlled via my ESS and that has to connect to MPG1.
i have moved my mpgs to mpg2 &3 but the Z movement controlled via mpg3  is slow and eratic.
i have tried all maner of settings, not helped by the fact thar
t calibration refuses to work on mpg3. I am beginning to suspect that mpg3 does not work properly on a lathe setup.
i have tried swapping things about including alt a and alt b and physically changing the wiring. plus the counts and velocity tabs in mpg setup.
any suggestions would be apprerciated!