No dialog box on tool change?

gSender ❓ Question
1

Trying to configure my tool setter on my DIY CNC running grblHal. For some reason, when I run the M6 command I never see a dialog box. None of the tool probing options change this behavior, I’m using V1.55 and also tried v1.54 to no avail. Using tools between 1-16 with M6 T#. It shows the purple status bar saying tool change but no where to proceed. Any help? Am I missing something? Thanks

2

What do your tool change settings look like? Depending on them, tool change commands will not trigger a dialog:

Screenshot 2025-10-06 at 9.23.16 AM
Screenshot 2025-10-06 at 9.23.16 AM1686×647 92.2 KB

3

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I’ve also gone through all the drop down menus and changed settings to no avail

4

Ah I see, it only triggers the dialog box when the M6 is issued from a .nc file. I’m confused about the workflow, if I wanted to manually touch off to find my Z offset, is there a way I can measure the tool without loading a .nc file? That’s my usual workflow; i.e. load a tool → probe tool length → touch off → all other tools reference the original TLO.

5

Older thread but I setup a macro to do the z touch, and that worked fine for me I just push that button and it would move in machine coordinates to the plate and do the touch off

6

That strategy is incompatible with the built-in toolchanging routines until we add one for grblHAL only that uses internal state. The built in fixed routines need to get the tool length reference in-file, not before.

8

I’ll also refer this question to the current feature request thread to effectively do what you’re looking for @jayem1427