During launching the machine it is worth checking to see if the step signal is polarized properly. The
easiest way is to mark a reference on the axis shaft of motor and on the cover. Now prepare and run a test
g-code, it should consist of short rides of the test axis. For X axis it will look like below:
G0 X0
G1 X5 F4000
G1 X0
G1 X5
…
G1 X0
M30
Run this test for several minutes then you should check if the marks line up on the motor shaft and the
cover. If the marks do not match it may mean improper polarization of the STEP signal. You should
change the polarization in the Mach3 program (menu Config/Ports & Pins/Motor Outputs - select/deselect
„STEP Low Active”) and run the test again. Of course, you can also use appropriate measurement tools
instead.
CS- Lab s.c. – CNC CSMIO/IP- M controller
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