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Author Topic: Mach3 Goto Zero issue  (Read 1070 times)

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Mach3 Goto Zero issue
« on: April 08, 2019, 05:10:53 AM »
Hello all,
I have a new OMNI 1325 that randomly seems to jam or get stuck on "goto Zero" moves or at the start of running a job in MACH3
I can manually jog the CNC at full speed without issues and when the job is running there are no issues.
If I move the CNC and hit Goto zero maybe 1 in 10 times in will jam as in the video that can be seen here -  https://youtu.be/LUjYjvEOt-M
Most of the time when i do this a thud or clunk can be heard but the move manages to finish as one would expect
Occasionally it will work without any thud,clunk or jam.
Im totally stumped, reducing the movement speed of the Z axis is not the issue as I can manually jog at full speed without issue
I do not understand how the goto zero command in mach 3 is being treated different to just normal Jogging operations and if this is a mach3 setup issue or an issue with the CNC controller
any expert advice would be greatly appreciated as so far OMNI support have been unable to provide any meaningful assistance

Offline reuelt

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Re: Mach3 Goto Zero issue
« Reply #1 on: April 08, 2019, 06:42:16 AM »
Who supplied the computer and the Motion Control card?
Are you using Parallel port(s) or USB motion Controller or Ethernet Motion Controller? What name & model of the motion Controller?
Are you using steppers or Servo motors?
Are your power supply running at the correct voltage? I thought it only runs on 3-phase 220V or 380V only?
Who setup MACH3 software?

I think you need to mechanically align up, lubricate and even tramp all new machines before use.
Then you need to do motor tuning speed and acceleration within Mach3.
You may have to slow down the machine if rails are not parallel or level.

The go to home routine could be modified to do Z-axis first and the Y and Z and not all together. In the script you can also define the % of the max speed to move.

But before people to help you, please answer the questions I ask first.

« Last Edit: April 08, 2019, 06:43:59 AM by reuelt »
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