Enhanced Avid Post Processor for Fusion 360

Everything Lasers
11

unfortunately in Mach 3 it is not as simple as just using M11/M10. I have a separate laser only machine 3 profile with many modification made to the configuration to make those commands work without any delay in firing the laser. This also requires a small breakout board to be added to your CNC controller this is outlined in the mach 3 set upI have attached. I made this profile many years ago after scouring Mach 3 and other forums for information. I don’t know if this will help you but it might help others who have Mach 3 and would like to use a laser attachment. I will also attach my apple scripts for GRBL-M3 and GRBL-NEW to convert these to something created in lightburn that Mach3 can use. This could very well be specific to my Endurance laser and how it interacts with Mach 3. I have never tested it with a different set up. Hopefully there is some value to it for you.

I have attached my set up guide for Mach 3. this is also posted in this forum in a different thread. I will add the link to the thread also. Mach 3 set up thread

Mach 3 set up.pdf (372.9 KB)

I am not able to upload scripts to this thread. my laser script is pasted into this thread. M3/M5 to M11/M10 apple script. This is the apple script I use to convert GRBL-M3 in light burn for 100% power/cutting. I have a separate script that I use for fill tool paths or to use less than 100% power that works with GRBL-NEW. That script Adds M11PxSx commands above every G0 move to an fire or turn off the laser.

this apple script is pasted below as I can not upload the file. Again I’m not sure how much use this is but maybe it gives you some information or helps someone else. Feel free to use/modify this as needed if it is helpful to you. One day I will try to modify these further to see if I can get my system to output greyscale raster images but I have not yet had the time or motivation to try this. But this thread has be shining about this again.

_________________________________________________________________________

-- Choose the file to be modified using the Finder

set chosenFile to choose file with prompt “Choose a file to modify:”

set fileReference to open for access chosenFile with write permission

-- Initialize variables

set modifiedLines to {}

-- Define the text to be inserted

set insertLineAbove to “M10P2”

set insertLineBelow to “M11P2 S45”

-- Read and process the file line by line

try

-- Read the file line by line

**set** eofReached **to** *false*

**repeat** **until** eofReached

	**try**

		-- Read the current line

		**set** currentLine **to** **read** fileReference until "

"

		-- Check if the line contains "G0"

		**if** currentLine **contains** "G0" **then**

			-- Add M10P2 one line above the G0 command

			**set** **end** **of** modifiedLines **to** insertLineAbove

			**set** **end** **of** modifiedLines **to** currentLine

			-- Add M11P2 S30 one line below the G0 command

			**set** **end** **of** modifiedLines **to** insertLineBelow

		**else**

			-- Keep the line unchanged

			**set** **end** **of** modifiedLines **to** currentLine

		**end** **if**

	**on** **error**

		-- End of file reached

		**set** eofReached **to** *true*

	**end** **try**

**end** **repeat**

-- Close the file

**close access** fileReference

-- Combine the modified lines into a single string

**set** modifiedText **to** (*items* 1 **thru** -2 **of** modifiedLines) **as** *text*

-- Write the modified text back to the file

**set** fileReference **to** **open for access** chosenFile **with** write permission

**set eof** **of** fileReference to 0

**write** modifiedText to fileReference

**close access** fileReference

**display dialog** "File successfully modified and saved." buttons {"OK"} default button "OK"

on error errMsg

-- Handle any errors that occur

**try**

	**close access** fileReference

**end** **try**

**display dialog** "Error: " & errMsg buttons {"OK"} default button "OK"

end try