On 1/24/26 07:56, Stuart Stevenson wrote:
This article -
https://www.cncsourced.com/cnc-machining/cnc-industry-facts-stats/ - point
number 9 - says
9. Linux introduced the first publicly available software for CNC machining
in 1989.
While another source (History of Linux - Wiki) says this:
Linux began in 1991 as a personal project by Finnish student Linus Torvalds
something doesn't quite match
possible typo?
Fred Proctor and William Shackleford created the original
code of EMC in the late 1980's. They first built it on Sun
workstations, I believe, using Delta Tau interface boards.
Then, they tried to migrate the code to PC's running a
Windows OS with a real time extension, but ran into horrible
real time lags. They then tried an early real time Linux
and were quite impressed by the performance. Matt Shaver
got hooked up with them and was the first outside user of
EMC. I ran into Matt online, and became the second outside
user. I first learned of EMC in 1997, and had some major
problems trying to get it to run on an 80486 system, which
was not compatible with the RTAI real time extension, but I
didn't figure that out for a while. I then got that solved
with a Pentium motherboard, and had a Bridgeport mill
running in early 1998. There were reliability problems as
the real time code was not saving machine state, and it
would cause the Linux user side to crash sometimes. That
issues was solved in late 1998 and I ran that version of EMC
productively for a number of years.
This is all from memory, and could be slightly off.
Here are a few documents describing some EMC early history:
https://linuxcnc.org/docs/devel/html/fr/common/emc-history.html
https://web.archive.org/web/20120417094958/https://www.isd.mel.nist.gov/documents/shackleford/4191_05.pdf
Jon
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