Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: woodguy7777 on July 08, 2021, 08:53:56 AM

Title: x axis reverse problem
Post by: woodguy7777 on July 08, 2021, 08:53:56 AM

Running mach3 on prt 96 shopbot cnc
my motors are slaved running off one Gecko drive.
motors started running in opposite direction.
how do i reverse the direction of one motor?
thanks for your help. Paul

Title: Re: x axis reverse problem
Post by: Tweakie.CNC on July 08, 2021, 10:28:38 AM

Transpose the connection of the two wires on just one phase of one steppr motor connection.

Tweakie.

Title: Re: x axis reverse problem
Post by: woodguy7777 on July 08, 2021, 01:32:34 PM

Hi Tweakie.
Thanks for your reply   sorry about this but i poster the incorrect information.
each stepper motor is running on its  independent  gecko drive
both gecko drives  are connected to a PMDX -122    to the same connector J3
the cnc  have been running for the past 7 years  with no problem.
so not sure how do i go about solving this problem.
both motors are turning  just one need reversing .
does your reply still stand?     if so can this be done off the gecko drive?

Title: Re: x axis reverse problem
Post by: Tweakie.CNC on July 09, 2021, 12:50:47 AM

Yes it still applies, just swap the connection of the two leads connected to one of the phases (eg. A - +A) at the gecko.

Tweakie.