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Author Topic: Z-axis Auto zero wiring  (Read 30634 times)

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Offline cvk31

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Re: Z-axis Auto zero wiring
« Reply #20 on: April 06, 2011, 10:09:55 PM »
I checked the voltage of the pin I have the plate hooked up to and it reads +5v.  If I run the resistor from pin 10
(which is in use by my homing switches) which is also +5v what will happen? Do I have my probe in the wrong pin?
I tried another script and same issue, z runs up.
Am I trying to "jump" +5v to the probe pin which should be reading +5v?

Offline ger21

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Re: Z-axis Auto zero wiring
« Reply #21 on: April 06, 2011, 10:16:36 PM »
When you touch the plate to the bit, does the digitize LED light up. It should.
Gerry

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Offline cvk31

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Re: Z-axis Auto zero wiring
« Reply #22 on: April 06, 2011, 10:20:41 PM »
Without active lo enabled the led is lit and turns off when I touch plate to bit.
With active lo enabled the light is off until contact is made.

Offline ger21

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Re: Z-axis Auto zero wiring
« Reply #23 on: April 06, 2011, 10:23:30 PM »
The active lo way is correct.


When you run the macro, what Z position are you starting at?
Gerry

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JointCAM Dovetail and Box Joint software
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Offline cvk31

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Re: Z-axis Auto zero wiring
« Reply #24 on: April 06, 2011, 10:27:07 PM »
Just below the home switch which is mounted at the top of the travel.

Offline cvk31

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Re: Z-axis Auto zero wiring
« Reply #25 on: April 07, 2011, 01:14:30 AM »
I have tried running several tool setter scripts and with every one I have the same problem.
Z takes off in positive direction.
I edited a couple of the scripts so that the move was in the opposite direction and it made no difference.
Anyone have any ideas?

Offline Tweakie.CNC

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Re: Z-axis Auto zero wiring
« Reply #26 on: April 07, 2011, 02:14:10 AM »
Is the touch plate itself operating correctly now ? - Digitize LED only illuminating when the plate touches the tool tip.

Tweakie.
KEEP SAFE !

Offline ger21

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Re: Z-axis Auto zero wiring
« Reply #27 on: April 07, 2011, 07:26:26 AM »
Quote
Just below the home switch which is mounted at the top of the travel.

Something like Z-.25? Is your home Z=0?

Try creating a new .xml from scratch.

I had a problem two weeks ago where, when homing my Z axis, it would move 1" away from the switch and stop. Creating a new .xml fixed it.
Gerry

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

JointCAM Dovetail and Box Joint software
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Offline cvk31

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Re: Z-axis Auto zero wiring
« Reply #28 on: April 07, 2011, 11:31:29 AM »
Yes, the touch plate is working correctly, led goes green when contact is made.  The z will stop when contact is made... of course, I've only been able to test it by picking up the plate and chasing Z as it goes up.
I have all axis set to auto zero at home position.

Z is working correctly: page up runs z up, page down runs z down or negative.
When I home my axis everything travels in the right direction to the home switches.
The only problem I have is when I run the macro instead of moving down to the plate, z goes up away from the plate.
I know this is just grasping at straws but... If I click active lo and emulate the z goes down toward the plate but does not register contact with the plate.

Offline ger21

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Re: Z-axis Auto zero wiring
« Reply #29 on: April 07, 2011, 11:36:09 AM »
You might have noise triggering the probe right away. It can happen so fast that you don't see the LED.

What does it do if you let it go up? Try starting it with the tool near the table, and see if it finishes?
Gerry

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

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