Transfer files nc to ngc

I am now running lcnc with a Probotix controller and motors and a 5i25 board from and with the help of J Thornton. I have had this router for about fifteen years and it is running better than it ever has.

I have a number of nc files that were created for Mach3 and I would like to make them work with lcnc. The cad drawings have been lost so if I can make them work it will save me a load of time. Any idea what I need to do to make them run?

Ian

I am not to familiar with the G-code formats used with Mach3, but if it is mostly basic G-code it shouldn't be too hard to make it work with either minor editing, or by making a script to auto convert it as it loads into Linuxcnc.
If you could share an example file, we might be able to give some suggestions.

Here is a typical file. I looked at the code but it is beyond me unless I spend a lot of time on it. Help is appreciated.

Yes, that should run almost as is.
What do some of the codes in your preamble do such as G40.1 and G50 in Mach?
I would simply set up a script that automatically replaces those 2 codes with the appropriate equivalent when opening a .nc file.
Otherwise it should run as is.

Here is a script to fix the 2 Mach3 G-codes, save it in your nc_files directory and change the permission to executable.



Then add these 2 lines to the [FILTER] section of your .ini file.

I will try it as soon as I get to the shop, Thanks!

Now that script may not work on every file, if there are other unrecognized codes or codes interpreted differently, they will need to be added to the script as well.