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Author Topic: Mach3 2010 Screenset - Now available  (Read 427938 times)

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Offline ger21

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Re: Mach3 2010 Screenset - Now available
« Reply #250 on: October 08, 2014, 07:36:39 PM »
AS I said, most people with this issue never even see the LED.
It's not that any of your components are bad, you probably just have bad ground loops causing interference.

Remove your probe wires from the breakout board, and replace them with short (2-3") wires. Then run the macro, touching the wires to simulate the tool touching the plate. I'm guessing that it will work fine.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Mach3 2010 Screenset - Now available
« Reply #251 on: October 08, 2014, 08:06:43 PM »
i'll try that in the AM. if it works with the short wire what would you suggest? i have a cut area of 4ft x 8 feet and my fixed plate is all the way at the end of my table. thank you for all your help.
Safe machining everyone

Offline ger21

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Re: Mach3 2010 Screenset - Now available
« Reply #252 on: October 08, 2014, 08:17:18 PM »
All I can suggest is try re-routing your wires.
I'd maybe try disconnecting everything but the probe wires, and see if it works then. If it does, then start adding components back in until you see a problem.

Ground loops can be very hard to diagnose and fix.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Mach3 2010 Screenset - Now available
« Reply #253 on: October 09, 2014, 10:52:08 AM »
i will let you know how it goes today. thanks
Safe machining everyone
Re: Mach3 2010 Screenset - Now available
« Reply #254 on: October 09, 2014, 05:26:54 PM »
not sure if I fixed the ground problem or if there was even a ground problem. i removed my shielded wires for the probe and plate, replaced them wire just regular old 18 gauge wire and installed a .01uF capacitor from 5v to Pin 13 and tested it. well to my surprize the touch off works great again. Hey Gerry thanks for helping me.
Safe machining everyone

Offline ger21

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Re: Mach3 2010 Screenset - Now available
« Reply #255 on: October 09, 2014, 05:37:00 PM »
If the shielded wire is not grounded properly, it can make the problem worse.

Glad you got it working.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Mach3 2010 Screenset - Now available
« Reply #256 on: October 24, 2014, 12:21:32 AM »
I just set up the zero probing this evening.  It works exactly as I would expect.  It comes down, touches the plate, backs off a few hundredths, comes back down more slowly, then moves to the clearance plane setting.  I can run the simple zero multiple times and it works every time, except in one case.   I start a cycle, let it run for a bit, then hit the stop button to stop the job. If I try to simple zero again, it does the first part of the process the same, but when it backs off, it is backing off approximately 1/2 an inch instead of a few hundredths.  Then it gives up before it gets back down to the plate again. If I shut down MACH3 and reopen, it works just fine again. I've repeated this multiple times.

I've got a 4.7k pullup and a small ceramic capacitor on the input, so I don't think I am getting any noise.  I could snag an o-scope from work to double check if need be, but this only seems to occur after I run a cycle.

Do I have something configured incorrectly?

Thanks,
Jason

Offline ger21

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Re: Mach3 2010 Screenset - Now available
« Reply #257 on: October 24, 2014, 08:37:35 AM »
I typed a reply, than re-read  your post and realized I missed the issue with hitting stop.
Try using feedhold, and then AFTER movement stops, then hit stop. It should work correctly then. I'm guessing it's some type of bug in Mach3 that doesn't like the way your stopping.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Mach3 2010 Screenset - Now available
« Reply #258 on: October 24, 2014, 09:24:11 AM »
I can give that a try when I get home, but I think it did the same thing when I either hit the e-stop or a limit switch, I don't remember which.  I'll check that as well.

Offline ger21

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Re: Mach3 2010 Screenset - Now available
« Reply #259 on: October 24, 2014, 10:10:35 AM »

Are you using the parallel port, or a motion controller?
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html