G54 issue with limit switch

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24 Jan 2024 18:12 - 24 Jan 2024 18:25 #291540 by Lpkkk
Hi I've recently added limit switches to my 3040. Before I was using touchplate to measure tool and set g54 z. After adding limit switches, I'm not sure what happened but when I load any program, it's is offseted much lower than it should be. Please look at screen below
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Last edit: 24 Jan 2024 18:25 by Lpkkk. Reason: Image add

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24 Jan 2024 18:20 #291543 by tommylight
Please attach the pictures here on the forum, not on 3rd party sites, they tend to have way to much suspicious scripts running, so present a security risk.

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24 Jan 2024 18:25 #291544 by Lpkkk
Replied by Lpkkk on topic G54 issue with limit switch
Thx. Corrected
The following user(s) said Thank You: tommylight

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25 Jan 2024 11:29 #291589 by Lpkkk
Replied by Lpkkk on topic G54 issue with limit switch
Ok lads, I've found it. The issue was caused by using
REMAP=M6 modalgroup=6 ngc=touch_plate

I've added it because after each tool change I would like to use touchplate to measure tool.
What I'm doing wrong? Any help?

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25 Jan 2024 12:10 #291590 by Aciera
Replied by Aciera on topic G54 issue with limit switch
Looking at your hal file, I don't see any links for limit switches for the Z axis:
setp stepgen.2.position-scale [JOINT_2]SCALE
setp stepgen.2.steplen 1
setp stepgen.2.stepspace 0
setp stepgen.2.dirhold 70000
setp stepgen.2.dirsetup 70000
setp stepgen.2.maxaccel [JOINT_2]STEPGEN_MAXACCEL
net zpos-cmd joint.2.motor-pos-cmd => stepgen.2.position-cmd
net zpos-fb stepgen.2.position-fb => joint.2.motor-pos-fb
net zstep <= stepgen.2.step
net zdir <= stepgen.2.dir
net zenable joint.2.amp-enable-out => stepgen.2.enable
#net max-home-z => joint.2.home-sw-in
#net max-home-z => joint.2.pos-lim-sw-in

Then in your ini I see you have HOME = 25 and HOME_OFFSET=25 yet you have not set any homing velocities, which makes me wonder how you home your z-axis?
 

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26 Jan 2024 20:44 #291683 by Lpkkk
Replied by Lpkkk on topic G54 issue with limit switch
You are right, I've commented out my limitswitch on Z as I thought this config could be the reason for my issue with g54. I will bring it back.
It's still not answer for my problem

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27 Jan 2024 09:01 #291727 by Aciera
Replied by Aciera on topic G54 issue with limit switch
Limit switches have no influence on your Z-offset but not properly homing your Z-axis certainly does.

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27 Jan 2024 09:11 #291728 by Lpkkk
Replied by Lpkkk on topic G54 issue with limit switch
That's interesting, could you please extend this topic?

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27 Jan 2024 09:21 #291729 by Aciera

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27 Jan 2024 19:33 - 27 Jan 2024 20:42 #291760 by Lpkkk
Replied by Lpkkk on topic G54 issue with limit switch
Ok. I've enabled limit sw on Z axis and everything is correct.

After I add remap line, it is still wrong like on 1st screenshot. I've found out it is like that because of what I have in routines/touchplate.ngc.
Can someone point me where?
Is it missing G49? If yes where? 
Ps. When I press on button to manually measure the tool it works like a charm. But in connection with remaping M6 it cause an issue. 
All I want is if in gcode there is a tool change, lift z axis up, display message box to start manual change, measure tool in some position xy, measure using touchplate, display another messagebox with info to take touchplate, carry on the gcode. 

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Last edit: 27 Jan 2024 20:42 by Lpkkk.

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