Coming from a home built CNC using MACH3β¦
One of the things I liked about the post processor Aspire had for my machine was the fact the resulting gcode included in the header was information about the file (filename, machine, material size, and tool(s) used).
A simple addition to the Vectric Grbl post processor (basically copied from the MACH3 pp) gives me the same info for my Altmill gcode files.
Thought the community might also like it. Simply insert these ten lines into the HEADER section of your Grbl post processor (between βbegin HEADERβ and the first line (βT1β):
β( [TP_FILENAME] )β
β( File created: [DATE] - [TIME])β
β( for Altmill from Vectric )β
β( Material Size)β
β( X= [XLENGTH], Y= [YLENGTH], Z= [ZLENGTH])β
β([FILE_NOTES])β
β(Toolpaths used in this file:)β
β([TOOLPATHS_OUTPUT])β
β(Tools used in this file: )β
β([TOOLS_USED])β
You will have to access the post processor file from the MACHINE/Post Processor Management menu and then select the Grbl and right click and select CUSTOMIZE. This will put a copy of it at the top of the list with a pen indicating it is editable via right click and selecting βopen file locationβ and then editing it with a text editor.
Subsequent gcode files will have the following in the HEADER:
( Pocket 1 )
( File created: Friday May 30 2025 - 08:47 PM)
( for Altmill from Vectric )
( Material Size)
( X= 317.500, Y= 101.600, Z= 15.494)
()
(Toolpaths used in this file:)
(Pocket 1)
(Tools used in this file: )
(1 = End Mill (1/4"))
Lenp