Other ways to interface with LinuxCNC

Yeah, you're right on that one mate,especially the ones stack side by side like the ones Mesa uses. They are aren't that many suppliers for them.

Your idea reminds me a lot of the Klipper projekt in the 3D Printing Space. Do you know about it?

With Klipper the calculation is also done by a more potent CPU, such as on a Pi, then Data is send to an Arduino via USB, which then executes it.

I suggest you take a look at this post
forum.linuxcnc.org/27-driver-boards/5038...or-5a-75b-and-5a-75e

HerrNamenlos123 wrote:

According to your other posts in the link, you got the BTS7960 to work nicely with Mesa cards, right? Is there also an example of an Ethernet Mesa card that will work for this? I am not a fan of the parallel port in general and would like to move away from it, since most PCs (even older ones) don't even have it anymore and Ethernet is a lot more future proof.

How did i miss this ???
Mesa 5i25/6i25 and 7i92 are the same thing functionally, so the only change needed is 3 lines in hal and ini for it to work with 7i92 ethernet card.