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I have added the Material Thickness parameter option for Ohmic Probe with Material Height.

The updated files are in the attached qtvcp folder. It needs to be placed into your working machine config directory.
Also the attached custom_postgui.hal must also be in your machine config folder.

The qtplasmac-imperial_material.cfg file has the material thickness added, it has the settings for a Hypertherm Powermax 85.

Snowgoer, I'm not sure if the custom_postgui file is the proper place to do the hal pin linking. If you have time to review the changes and add it to the source code, I would appreciate it. Otherwise I can try to figure out git and do a pull request.

For probe basic non of that is required, the existing rack atc is fully setup for configuring the atc in the gui once the correct ini settings and var file parameter numbers have been added. It uses random tool change and tracks pockets the same as random carousel. Looks for the first open pocket for storing the tool and finds the tool by its tool number and the parameter number its stored in. We made it super easy to setup with only a few user entries in the ui itself to determine where the rack is on the machine and the direction of ascending pocket order . Then the first pocket coordinate and the pocket spacing is entered and the drop off and pickup heights and clearance distance and its ready to rock and roll!

I wasn't good with my phrasing. I touch off G54, and explicitly set G10 L20 P1 X0 Y0 Z0 to force G54 (I may not need to do this? because it's what automatically happens when I touch off if I have the popup set to G54?), but don't ever use that except for touchoff/part location. (I *think* this is how I should be doing this?) Then I subsequently set up G10 P2, G10 P3, and so forth, and only machine at the work offsets referenced by those.

Is this for probe basic? If so the docs here have the information on how the rack atc should be setup in configs:

kcjengr.github.io/probe_basic/

See linuxcnc.langdonstaab.ca/qtpyvcp/57875-rack-atc

Consider setting the HOME_SEQUENCE value for joint 4 and 5 to 2 so it can be homed with the Y axis.

Are you sure HOME_IGNORE_LIMITS = YES is a good idea?

Seems a bit potentially risky.

Anyway, linuxcnc.langdonstaab.ca/media/kunena/at..._auto_probe_tool.ngc seems to have stuff like `#<_ini[CHANGE_POSITION]Y>`

But as far as I can see, no such variable with that name is in the INI file.

Is there another INI file?

Otherwise, where the is LinuxCNC retrieving these values from?

In the NGC file it shows an error message and returns LinuxCNC is not in the correct measurement mode, why not just call G21 at the top of the file to ensure the correct mode is enabled always?

Why show a prompt when a simple G21 would (likely) suffice?

On the Fujitsu also make sure that if it has the AMT feature
(common in corporate desktops), that it is disabled.

Also disable EEE and any PCIE power saving  in grub.

When you get to about the stepper motor section of pncconf check out "tandem" axis... like this:

 

Also, depending on your machine you may or may not need to invert the direction of one of the motors. There's a few ways to do that but this is one way:

 

attached are my config files. I have been trying for over a week to get the remap to work, I don't know what am I doing wrong. thank you!

I don't really know but have a look here:
github.com/LinuxCNC/linuxcnc/blob/bd96ca...tion/control.c#L2023

Thanks for your feedback. I'm not so worried about the first issue above as much as the second issue that I describe above.

The second problem has persisted for a long time and many have tried their luck at resolving it. I continue to see problems being discussed
that may be probable causes for this subroutine. 

Honestly, I think that the documentation around what I have described is perhaps incorrect or simply doesn't provide enough information
for the operator to make the subroutine work as expected. A good example of this is line number 31, the instructions indicate the following:

  31;  4 - Workpiece Measure: Use the button under the Probe Screens for "Probe Z height
  32 ;        of material:" this will set and display on the Probe Settings screen the
  33 ;        "Block Ht" = #<_hal[qtversaprobe.blockheight]> value in ABS coordinates.

What is missing is is there should be a "Jog to a coordinate" in order to measure the work piece height which will determine the "Block Ht" .

I am curious if there are any other steps involved that are not documented?

You should not need to "Clear all tool offsets (set Z to 0.0)"

Isn't that what G53 is for?

Please post .hal and ini files.

So sorry that meant around 22mm

Included with LinuxCNC, go to "sample configurations">sim>axis>remap>ract-toolchange>racktoolchange
It will copy the sample config to your config directory, so you can have a look at what it uses, and copy/paste the relevant stuff to your working machine config for testing on the actual machine.
Do make a backup or two before editing your machine files.