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Loosing Coordinates
« on: August 15, 2008, 07:43:47 AM »
Hi

We are having a problem where the machine looses it's coordinates during operation. After a run of the program it is normally out by 1mm
in both the X & Y axis. This also varies in magnitude aswell as direction. Is there something that needs to be calibrated ?

Offline Hood

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Re: Loosing Coordinates
« Reply #1 on: August 15, 2008, 09:19:49 AM »
Sounds like you could be loosing steps, turn down the acell and velocity a bit on each axis and see if that helps. Also check for binding ways or dirty ballscrews.
 If none of that checks out please let us know what kind of machine, type or motors and drives and other hardware you are using.
Hood
Re: Loosing Coordinates
« Reply #2 on: August 18, 2008, 05:06:06 AM »
Hi

I disabled a surveilance system wich was running on the same computer and found better results , But when I slowed the machine down to half the speed of wich it was running at , the deviatiation was much worse.

We're running on XP 2002 with a Pentium 4 CPU @ 3.00GHz and it's got 1 Gig RAM. The stepper motors are from Motion King ,
Model Nr. : 23HS0405

What about a network connection ? Could that be a problem ?

Offline Hood

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Re: Loosing Coordinates
« Reply #3 on: August 18, 2008, 05:53:39 AM »
Shouldnt be but anything is possible. Just try deleting everything or stop them running to see irf you can find the problem. If you have Apples Quicktime get rid of that as it is notorious for causing havoc with Mach engine.
Hood
Re: Loosing Coordinates
« Reply #4 on: August 18, 2008, 07:44:30 AM »
Hi

Turned off just about everything. But if anything the problem has just got worst.

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Re: Loosing Coordinates
« Reply #5 on: August 18, 2008, 07:50:39 AM »
Have you run the driver test to see how the pulse looks?
 Have you tried the optimisation steps detailed on the downloads page?

Hood
Re: Loosing Coordinates
« Reply #6 on: August 18, 2008, 08:29:02 AM »

Where do I find the driver test ? I'm a bit new to this program.

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Re: Loosing Coordinates
« Reply #7 on: August 18, 2008, 08:30:50 AM »
Drivertest.exe should be in the Mach3 folder on your drive, make sure Mach is not running when you try it.
Hood
Re: Loosing Coordinates
« Reply #8 on: August 19, 2008, 05:07:37 AM »
I've done the Driver Test , but the machine is still loosing coordinates.

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Re: Loosing Coordinates
« Reply #9 on: August 19, 2008, 05:20:43 AM »
What does the driver test look like? if its nice and smooth then fine, if its jumping all over the place with big peaks then its not so good.
Hood