Hi Ron,
On 2020-01-20 12:10, R C wrote:
Hello Rafael,
First; As I said, I am setting up a test bed, not even a CNC, just to
work out how to make some combination of linux-cnc, stepper drivers and
stepper motors work.
Second; When I get it figured out, and I am sure I will, because this
list/forum is great in providing solutions, suggestions, pointers and
positive directions in general etc. I
probably won't use X forwarding, but then again, I might,
who knows.
That's fine. You can experiment with software/HW any way you want. I was
pointing out what makes sense and what not. You can try running
X-windows over PPP connection through 56k modem over the phone line if
you want.
I would rather "experiment" with headless CNC machine located in EU from
my GUI front-end on Linux workstation in CA. Modern bandwidth would
allow for video from a camera mounted above CNC machine.
- headless LinuxCNC core with USB for keyboard and simple text display
needed for basic OS installation, configuration, or troubleshooting
- GUI fronted for machine operator; platform independent (i386, Arm)
- API for special additions and future development
third; I have no Idea what a caw is, however on my travels I once heard
a breed of parrots being referred to as a caw, and indeed, it would not
make much sense to put a saddle on a bird
like that. Unless you meant cow, in that case, and because of
caw was a trap ... cow it is. You passed the test.
losing track of the topic, I would have carved out some time to spend on
reading/writing English from those decades
of research if I were you.
thanks for English lesson. Plenty of opportunities for your police work
on this mailing list. Perhaps you can cleanup "Pandemonium of rabbits"
and untrimmed emails that are impractical to read on tiny mobile devices
for years now.
fourth: Your email sounds like a Chevy vs Ford, Windows vs Mac vs Linux
rant, no one probably cares.
Failed test. Better comparison: embedded systems vs. CNC on PC; DOS vs.
RTOS; metric vs. feet/inches;
The fact you, and few others, don't have a solid understanding of linux,
"The fact"? based on what? My installations of Linux containers,
clusters, Saltstack, Openstack, ESX,...?
Compiled Linux kernel hundreds of times, installed OS on thousands of
servers or VMs in the data centers over VPN from 5 to 1000 miles away.
Add BSD, Solaris, HP-UX, and other Unix to that list. I only used
X-windows on workstations installs. When you exceed that number I'll
sign up for you to give me more lessons.
Fact: millions keep dragging feet and inches over 200 years after much
better system was invented for science and daily use by people born with
10 fingers to count.
is not an argument. The fact it is open source isn't either. HPC, super
computers, worth hundreds of millions, run
some version/distro of linux. One of the reasons being that the ways it
can be configured, tweaked, modified are enormous, better then one
single OS vendor would ever be able to provide.
"better then"? Thanks for English lesson again.
Also, I am not sure, but most on this list/forum, are probably not even
professional machinists, there are probably a lot of "CNC enthusiasts"
around, some know a bunch about
that's precisely why I was hinting at need for growing up from "parallel
port" days. Perhaps discuss how SATA, PCIe, M.2 technologies and related
protocols could be taken advantage of. May I remind you that this is
"Python3 year".
CNC machining, some are more software/programming inclined, some are
more OS or electronics inclined. That's probably how linux-CNC came of
the ground, which is pretty cool.
Exactly. We do agree on something. I believe that we reached the point
where significant improvements can be or should be done to carry
LinuxCNC forward.
If you look at it, linux-CNC is pretty slick. Granted I had some trouble
installing it, using it, it is not based on the OS of my choice (but I
don't mind/care, and
I never had problems with installing it in VM to test software
functionality. Granted, I'm not using it for CNC at this point. With
attacks on my comments make it even less desirable now.
no one else, except you, probably really does.). The reason for my CNC
"troubles" , I am sure, largely have to do with my own shortcomings, not
exactly knowing
a lot about linux-CNC, or CNC machining in general. It is an open source
project, which means that it is available to anyone. It might not be the
perfect solution, BUT, what is?
I have nothing against people trying this or that. Experiments lead to
new discoveries but not all.
My active participation in Linux install-fests held at Cisco in north
San Jose is history. Anybody was welcome to see how our personal
computers with CRT monitors work. We would help visitors setup their
systems. I remember a gentleman who asked me to come to his home to help
him out with Linux. He wrote some critical drivers etc. That was my
little give back to open source community for excellent software.
Lessons I learned were handy at work obviously.
One of the big advantages is that as soon as a few people come up with
and idea to implement something, even if a majority doesn't like the
idea, they still can.
With an OS/Application vendor, you're pretty much dead in the water if
you want something they don't/won't implement.
Countless number of OSS projects grew into commercially supported and
enhanced products and work on both sides. Some times it's the other way
around. A commercial product is released as OSS for smaller
installations to attract new customers. Nginx, Ubuntu, Hadoop, ROS,
Apache, OpenVPN, and such.
Also, returning back to the topic, you might have heard of LOM, (Lights
Out Management), of equipment, including CNC machines, during your
decades of research where it
My toolbox includes adapters, cables, or breakout thingies I built for
connectors to SunMicrosystems and other computers used in semiconductor
industry etc.
actually might be convenient, if not mandatory, to remotely check in
with CNC machines running autonomously. So X11 forwarding might be
useful, who knows.
why push pixels to see what's going on a remote system with RT kernel
when simple ASCII (JSON?) string can tell you all? What about API to
Linux CNC?
It's about software footprint and real estate used by silicon components
on PCBs.
Anyway, last but not least, to those of you actively contributing to
linux-CNC, most of us here, I am sure, would like to thank you for your
countless hours spent
Amen.
on making this open source project possible. There will always be those
that are whining and complaining, but they are vastly outnumbered by
those of us
that are happy this projects exists.
</RANT>
Perfectionist, where's the opening tag for rant?
thanks!
Ron
You are welcome.
People who keep things the way they are or never complain don't improve
or invent anything. Some people get it: OpenEmbedded, Toradex,
buildroot, eLinux, etc.; others don't.
Sorry guys, when a response to my email is a real time troll (not
knowing how particular OS is crippled) and another one as a rant I can
only come to conclusion that there is no interest in making improvements
in LinuxCNC or desire for easier way to install and support it on modern
embedded HW platforms.
--
Rafael
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