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Author Topic: AutoZero Plate for Z Axis  (Read 21263 times)

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Offline kolias

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AutoZero Plate for Z Axis
« on: March 03, 2011, 01:39:39 PM »
I want to set up an auto zero plate for my Z axis as per attached doc. which I got it from the web some time ago. My questions:

1. Is the VB script correct (I will change the plate thickness to mine which is Aluminum 0.125””

2. I dont have any more outputs from my BOB to get the +5V. They all are taken for my limit/home switch. Can I use one of them since they will never be working together at the same time?

Nicolas

Offline Hood

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Re: AutoZero Plate for Z Axis
« Reply #1 on: March 03, 2011, 02:27:37 PM »
5v supply can be used by more than one function, its the input that needs to be seperate.
Hood

Offline kolias

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Re: AutoZero Plate for Z Axis
« Reply #2 on: March 03, 2011, 03:21:47 PM »
Thank you Hood
Nicolas

Offline kolias

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Re: AutoZero Plate for Z Axis
« Reply #3 on: March 04, 2011, 11:37:34 AM »
I made the connections for the auto zero of my Z axis but it doesn’t work. When I press the Auto Tool Zero button on Mach I hear a clack clack on the Z axis and nothing moves.

Is the attached VB script good for all machines. The 0.125 on the script is the thickness of my touch plate.

I also enable the probe on the input signals screen with port 1 and pin 10 (where I connected the Red), and clicked the active low.

Is it perhaps because I have these capacitors on my limit / home switches that does not allow the auto zero to work?

What am I doing wrong?
Nicolas

Offline Tweakie.CNC

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Re: AutoZero Plate for Z Axis
« Reply #4 on: March 04, 2011, 12:29:53 PM »
Try zeroing your Z axis DRO first.

Tweakie.
KEEP SAFE !

Offline kolias

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Re: AutoZero Plate for Z Axis
« Reply #5 on: March 04, 2011, 12:33:03 PM »
Never though about it, I will do it right now and post back
Nicolas

Offline kolias

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Re: AutoZero Plate for Z Axis
« Reply #6 on: March 04, 2011, 12:45:26 PM »
My machine was off so I turn it on and all axes were at 0

I clicked the Auto Zero Tool and it said

"Auto Zeroing........" and after a few seconds it said

"Probe Ignore, Activated at call for probe"

I moved the Z axis a bit and tried again but got the same message

So now what?
Nicolas

Offline Tweakie.CNC

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Re: AutoZero Plate for Z Axis
« Reply #7 on: March 04, 2011, 12:58:45 PM »
Just as an experiment please try this code


DoOemButton (1010)
Code "(Setting Tool Zero)"
While IsMoving ()
Wend
If GetOemLED (825) = 0 Then
Code "G90 G31 Z-3 F20" & ProbeFeed
While IsMoving ()
Wend
If GetOemLED (825) = True Then
End If
ProbePos = GetVar (2002)
Code "G0 Z" & ProbePos
While IsMoving ()
Wend
Call SetDRO (2, 0.125)
Code "G0 Z1"
While IsMoving ()
Wend
End If


Tweakie.
KEEP SAFE !

Offline kolias

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Re: AutoZero Plate for Z Axis
« Reply #8 on: March 04, 2011, 01:11:15 PM »
I installed the new code and now it says

"Setting Auto Tool Zero"

Nothing happens but now I dont get that clack...clack noise from the Z axis
Nicolas

Offline Tweakie.CNC

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Re: AutoZero Plate for Z Axis
« Reply #9 on: March 04, 2011, 01:15:42 PM »
Can you go to the Diagnostics screen and check that Digitize LED is off.  Now short touch plate to tool (probe) and check Digitize LED comes on.

Tweakie.
KEEP SAFE !