[solved] How to set manual tool change remapping in qtdragon. Z limit error

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22 Jul 2024 14:42 - 25 Jul 2024 14:29 #305860 by sou528
I am having trouble setting up manual tool changes and remaps in QTDragon.
I'm trying to migrate from Gmoccapy, but I just can't get it to work.

I am setting it up from scratch, but currently the replacement instruction window is displayed and the tool probe and workpiece are moved.

In this state, the Z-axis height above the pre-beam appears to be about twice the maximum height.

The message reads:
invalid params in linear command error parameter is [3.000000]
Linear move on line 17 would exceed Z's negative limit

I've been doing this all day today. It seemed to work once, but I can't reproduce it. I've set it up from scratch many times, but it's stuck in the same place.

LinuxCNC2.9.3 
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Last edit: 25 Jul 2024 14:29 by sou528.

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23 Jul 2024 04:35 #305886 by cmorley
Can you figure out in what part of the process it is failing?
ie before the tool change? During the probe? etc

You could add some msg() commands to qt_auto_probe_tool.ngc to help in that regard.

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23 Jul 2024 13:04 #305900 by sou528
Thanks for the reply!I tried the installation again.I got to the point where the machine was working, but REMAP didn't work.I want to get back to that point soon.MDI↓T1 M6↓Move to [CHANGE_POSITION]↓Nothing happens. No dialog box appears.I don't know why, but I'm sure I'm missing something.No matter how many times I try to configure it, I can't keep up with it.

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23 Jul 2024 19:38 - 23 Jul 2024 19:39 #305920 by COFHAL
I notice this error after having changed a tool with M6 Tx. I attach my INI file and that of qtdragon_hd.pref. The entire change process makes it correct. The problem is that once it has measured the new height of the tool, the Z axis goes up and stops with that error.
 


File Attachment:

File Name: YYS6040_QD.ini
File Size:7 KB

File Attachment:

File Name: qtdragon_hd.pref.txt
File Size:4 KB
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Last edit: 23 Jul 2024 19:39 by COFHAL.

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24 Jul 2024 04:05 - 24 Jul 2024 04:06 #305942 by sou528
The error occurs after a tool change.

**************************
Cycle Start

Move to [Tool_change_position]

Replacement instructions

Go to [VERSA_TOOLSETTER] and measure the tool

Go to WORK

Z limit error

Linear move on line 17 would exceed Z's negative limit
Linear move on line 17 would exceed joint 2's negative limit
invalid params in linear command
error parameter is [3.000000]
Cannot switch pages while in AUTO mode

****************************

It looks like the z-axis is now jumping out of the machine area.
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Last edit: 24 Jul 2024 04:06 by sou528.

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25 Jul 2024 10:50 - 25 Jul 2024 11:53 #306003 by sou528
I still don't know the cause, but I think I'm getting a little closer to the answer.


What value does <zworkoffset> represent?

qt_auto_probe_tool.ngc
#<zworkoffset> = [#[5203 + #5220 * 20] + #5213 * #5210]


When calculating using <touch_result>, the results will be more accurate if you omit <zworkoffset>.

qt_auto_probe_tool.ngc
#<touch_result> = [#5063 + #<zworkoffset>]

In other words, when G92/G52 = 0 and G54, the value of <zworkoffset> is "0", right?
<zeorkoffset> value is around "110", so I think that's the cause.
I don't know if the "ini" settings are wrong or what the cause is. Do you know anything?
Last edit: 25 Jul 2024 11:53 by sou528.

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25 Jul 2024 11:14 #306005 by Aciera

In other words, when G92/G52 = 0 and G54, the value of <zworkoffset> is "0", right?

That is correct.

The value is around "110", so I think that's the cause.

this would indicate that #5063 (which should hold the Z coordinate value at the time the probe tripped) has the value 'around 110'.

Typing this command in MDI should show the current value of parameter 5063:
(DEBUG, value = #5063)



linuxcnc.org/docs/html/gcode/overview.ht...:numbered-parameters

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25 Jul 2024 11:34 - 25 Jul 2024 11:45 #306008 by sou528
I wrote it poorly.

The value of “110” is indicated by <zworkoffset>.
(DEBUG, value = #5063)
This value is -120.
#<touch_result> = #5063

When I changed it to this it worked fine.
I don't know what the results would be if there was an offset.
Last edit: 25 Jul 2024 11:45 by sou528.

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25 Jul 2024 13:19 - 25 Jul 2024 13:22 #306012 by sou528
Resets the Z value of the active coordinate system.
Before getting #<zworkoffset>, you must reset the Z value of the active coordinate system.

;Resets the Z value of the active coordinate system
G10 L2 P#5220 Z0
#<zworkoffset> = [#[5203 + #5220 * 20] + #5213 * #5210]
Last edit: 25 Jul 2024 13:22 by sou528.

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