Maho MH 300 C Retrofit...?

Eu não tenho duvidas que funciona. As duvidas que eu tenho é se eu sou capaz de fazer o retrofiting usando a Mesa 7i77,... fazer todas aquelas programações e ligações...
Eu estou longe. Marinha Grande.

I have no doubt that it works. The doubts I have is if I am able to do the retrofiting using the 7i77 Table, ... make all those schedules and atachments ...

If I understand correctly, to do the retrofiting using Linux I will need:
-Mesa 7i77
-Mesa 5i25
-PC Desktop + keyboard + monitor
- Linux operating system
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-Mesa 5i25 is for installing on the Desktop
-Mesa 7i77 is to be installed/atachment in the machine
-Mesa 5i25 communicates with the 7i77 via a cable
-Programming / command of the machine follows the following path:

-Desktop (Linux) - 5i25 - 7i77 - Drives - Machining

Is that how I described it?
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Is there any way, ... or is it possible to install linux on my desktop to know the interface without harming the current operating system?

Correct. You probably will also need a 7i84 generally used for the IO of the control panel, if you have a lot of buttons.

From you to us is about 5 hours driving. This would save you a lot of time in the future as you can see a running machine with the exact hardware that you are proposing.

If I wil going to use a desktop (for Linux Software). 7i84 is for what??

A 7i84 is a Mesa Smart Serial card and adds additional isolated digital IO points (16 out and 32 in), essentially doubling the the IO available with only the 7i77. It may or may not be necessary with your conversion.

Good Morning!
I tried to install linux CNC on an old pc and an empty disk but the best I could do was to have normal linux operating system installed on my computer. I thought I was going to stick with something similar to this I send in the photo.

If you installed the linuxcnc iso, then you have linux + linuxcnc. In the menu you do not have a group of programs that are named linuxcnc ?

In the picture that you sent, it is linuxcnc running gmoccapy, that is a "front screen" to linuxcnc that can be customised.

Yes, I already knew that. Subsequently in what way is it possible to put LinuxCNC (after customizing) to communicate with 5i25?

Not sure I understand your question, but Linuxcnc communicates with Mesa cards (such as your 5i25) via the Hostmot2 driver software.(which is included with Linuxcnc.)

(You can build a Linuxcnc config for using Mesa cards using the PNCconfig wizard.)