Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: John40131 on October 04, 2017, 03:42:42 PM

Title: Motor Tuning with 2 motors on X Axis
Post by: John40131 on October 04, 2017, 03:42:42 PM

Hi, I am about to power up my CNC build and I have 2 motors on the "X" axis which will run 1 CCW and 1 CW how do I setup the motor travel and tuning, I presume I disconnect a motor and do one then set "A" the same values, can anyone advise.

Many thanks John

Title: Re: Motor Tuning with 2 motors on X Axis
Post by: joeaverage on October 04, 2017, 05:04:14 PM

Hi,
yes the 'steps per', velocity and accel must all be the same. You can cause a motor to run in opposite direction
by swapping ONE winding OR reversing the Dir pin (active low vs active high).

Craig

Title: Re: Motor Tuning with 2 motors on X Axis
Post by: ger21 on October 04, 2017, 05:49:03 PM

Quote

You can cause a motor to run in opposite direction
by swapping ONE winding OR reversing the Dir pin (active low vs active high).

Or checking the "Reverse" box in Config > Homing/Limits.

Title: Re: Motor Tuning with 2 motors on X Axis
Post by: John40131 on October 04, 2017, 05:57:21 PM

I thought as much I suppose once I have say "X" motor tuned and then connect "A" as the slave then insert the same numbers in that drives tuning, then once I have 2 motors connected splits the load so it would be trial and error to change the velocity,acceleration  to the optimum , and then make sure both axis have the same steps per inch, Velocity and acceleration.

Regards John