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A bit of history of Mach and LinuxCNC

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John Alexander Stewart19/04/2020 18:56:35
776 forum posts
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I know lots of people here are Mach users, so you may like to find out a bit of background:

LinuxCNC used to be called EMC, until some company decided to patent "EMC", and somehow won. (I don't think it was much of a fight)

EMC has its' roots in the US NIST (standards); not sure of the date.

is a paper from 1994.

A while ago I did see a message from Art Fenerty requesting permission to use some of the EMC code for Windows, but I can't seem to locate that anymore.

But, the following message from 2002 might help shed some light:

"Pieces of EMC were used as a base for Art Fenerty's Master CNC and

Mach-1, which does run on some Windows systems, but it is NOT EMC."

I find it really interesting that this "stuff" has been around for at least 25 years; I would not have guessed it.

Anyway, FYI, or TMI, or whatever, for what is a rainy day here. JohnS.



Edited By John Alexander Stewart on 19/04/2020 18:57:08

Michael Gilligan19/04/2020 21:17:41
16360 forum posts
712 photos

Thanks for that, John

... and there was me fondly believing that EMC was ElectroMagnetic Compatibility.


mike T19/04/2020 22:54:28
173 forum posts
1 photos

LinuxCNC, was formerly known as EMC2, which was the second variant of Enhanced Machine Controller, Linux-based CNC software.

And as MichaelG will no doubt be able to confirm:

In physics, mass–energy equivalence is the principle that anything having mass has an equivalent amount of energy and vice versa, with these fundamental quantities directly relating to one another by


E = energy
m = mass
c = the speed of light



Edited By mike T on 19/04/2020 22:57:29

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