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Author Topic: Z height unstable  (Read 1775 times)

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Z height unstable
« on: September 09, 2014, 02:47:33 PM »
Good day folks. When I set the Z either using AUTO ZERO button or manually, it doesn't seem to "remember" it. So many times I Have set the Z to zero then ran the code and it plunges into the work or sits and moves around in the air.
What gives?? Am I missing a setting or something??

MACH 3  Version R3.043.066  is what I am using.

I would love to fix this.

Andrew

Offline ger21

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Re: Z height unstable
« Reply #1 on: September 09, 2014, 06:13:11 PM »
1) Is your zero actually being set correctly?

2) Is there anything in your g-code that can alter Z zero? (G43?)
Gerry

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

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Z height unstable
« Reply #2 on: September 10, 2014, 10:21:39 AM »
Well I use an auto zero script from this forum and sometimes when I set it manually it does the same thing. I'll look for a G43 code. I have Aspire that makes my G code.
Thank you Gerry.


Andrew
Re: Z height unstable
« Reply #3 on: September 10, 2014, 10:24:07 AM »
I think I found something.

N130 (V-Bit {60 deg 0.5"})
N140G00G43Z0.8000H1

that is some G code from the beginning of the file.  Is that what you meant about G43?? If so how do I stop it from doing that??


Andrew

Offline ger21

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Re: Z height unstable
« Reply #4 on: September 10, 2014, 10:37:58 AM »
Do you have a tool length for tool #1 in your tool table?
Gerry

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

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Z height unstable
« Reply #5 on: September 12, 2014, 02:02:22 PM »
All my bits are tool 1 it would seem. I looked in the tool database but is there somewhere else?