How to setup a 4axis gantry plasma machine using gmoccapy?

emad wrote:

I can't alter the HAL manually without a GUI.

I don't understand what you are saying here.
Can you try try re-phrasing it?

I am on the phone so i can not help much, but i know there is a wiki on seting up 2 motors on the same axis, and if you study the ini file you can easily figure out how and what to change. So make a usual config for 4 axis, and edit the ini file to set the A axis as the second Y or X axis. This is for 2.8pre version.

emad wrote:

Please, don't expect me to rephrase my sentences because my native tongue is Arabic

I am very aware that most of the people in the world do not speak English. But often a different combination of words can make the meaning more clear.

There are (often only partial) translations of the LinuxCNC documentation in French, and the software itself has a number of language choices:

github.com/LinuxCNC/linuxcnc/tree/master/src/po has entries for de, es, fi, fr, hu, it, ja, pl, pt, ru, ro, sk, sr, sv and Chinese.

If you fancy a project that would increase your understanding of the software, perhaps you would like to consider making an arabic translation file?

emad wrote:

The word "under" is repeated.

Fixed, thanks.