Tool-change macros with parameters

rero

Good evening,

when using duet-boards on CNC-Mills (or other devices != 3D Printer) it is required to create/write a set of tool-change macros for each tool(-position):

tfree1.g, tpre1.g, tpost1.g, tfree2.g, tpre2.g, tpost2.g, and so on and so forth ...

For my current project I created these files, but they contain just a single line to call a generic, parametrized version:

; tfree1.g calls my tool-change macro
M98 P"tfree.g" X1

It would be nice if such a mechanism would be supported out of the box inside RRF.
And I could get rid of 57 macros (19 tools) in my sys-folder

jay_s_uk

@rero it would be nice to be able to have tfree.g etc work without the number and just call one set of tool change files, especially if it's a single head machine.
I'm lazy and use a macro to create multiple of the same file.
E.g.

while iterations < 4
        set var.filename = "tpost"^{iterations}^".g"
        echo >{var.filename} "; autogenerated tpost"^iterations^".g file"
        echo >>{var.filename} "M98 P""0:/sys/AFC/tpost.g"" A"^{iterations}

dwuk

@rero From looking at the RRF code it looks like it will first try tfree with a number on it - but will then if this doesn't work it will then try a file without a number as a fallback.

https://github.com/Duet3D/RepRapFirmware/commit/7cea891dcdc276e12edda2c991ce8fb415cfc03a

0

chrishamm committed to Duet3D/RepRapFirmware

Added support for tool macro fallbacks

tpre.g/tpost.g/tfree.g is executed if the specific t...N.g macro is not found

jay_s_uk

@dwuk oh really? I'll try that and see if it works

rero

@dwuk great find!

Just tried it on my test-setup and it works as intended.
Only complaint: no information about the upcoming tool-number in the tpre.g macro.
But for my concrete needs I should be able to move existing tpre-code to tpost.

-> Maybe someone can add this information to https://docs.duet3d.com/User_manual/Tuning/Tool_changing ?

Another idea: having another tXXX-macro which is executed in case a tool has been already selected previously (e.g. to probe a current milling-tool again).

jay_s_uk

@rero the next tool should be available in the object model under state.nextTool

rero

@jay_s_uk thanks for pointing out!

"Can't see the forest for the trees" ...

T3P3Tony

@rero said in Tool-change macros with parameters:

-> Maybe someone can add this information to https://docs.duet3d.com/User_manual/Tuning/Tool_changing ?

paging @droftarts