that the
coffee pot is empty because the coffee machine had a problem downloading the
most recent bean roast sensing algorithm.
--- On Mon, 2/20/12, Jon Elson el...@pico-systems.com wrote:
From: Jon Elson el...@pico-systems.com
Subject: Re: [Emc-users] Latency - was Re: Which video card/driver for LinuxCNC
)
Subject: Re: [Emc-users] Latency - was Re: Which video card/driver for LinuxCNC?
the allocation of computing resources seems to be a recurring theme with pc
based machine controllers.
while i have wished for an accesible pocket calculator gui more than one time
while standing in front
On Tue, 2012-02-21 at 03:47 -0800, charles green wrote:
the allocation of computing resources seems to be a recurring theme
with pc based machine controllers.
while i have wished for an accesible pocket calculator gui more than
one time while standing in front of a machining center console,
It would be nice to know enough to debug latency issues, instead it feels
like kludging around with no idea what is the cause. I suppose rtai has
some tools if you know what you are doing.
On Tue, Feb 21, 2012 at 1:12 PM, Kirk Wallace
kwall...@wallacecompany.comwrote:
On Tue, 2012-02-21 at
On Tue, Feb 21, 2012 at 1:26 PM, Erik Friesen e...@aercon.net wrote:
It would be nice to know enough to debug latency issues, instead it feels
like kludging around with no idea what is the cause. I suppose rtai has
some tools if you know what you are doing.
Do they? It's been a while since I
On 20 February 2012 06:14, Jon Elson el...@pico-systems.com wrote:
Dropout wrote:
A quick question, does latency matter for servo drives?
Yes, absolutely. But, it is not as critical. For software stepping,
the base
thread is typically around 20 us, and so a jitter of even 5 us is more
2012/2/20 Roland Jollivet roland.jolli...@gmail.com
So the norm is that a stepper system can run off the parallel port, but for
DC servo's, extra hardware is required to sample the encoders.
My question is; if one built a headless system(no video) and disabled
drivers wherever possible,
2012/2/20 Roland Jollivet roland.jolli...@gmail.com:
My question is; if one built a headless system(no video) and disabled
drivers wherever possible, would such a system be fast enough to run DC
servo's and read the encoders on the parallel port?
As Andrew mentioned, for normal speed with
Roland Jollivet wrote:
My question is; if one built a headless system(no video) and disabled
drivers wherever possible, would such a system be fast enough to run DC
servo's and read the encoders on the parallel port?
You have to figure this out for each case. What is the maximum encoder
A quick question, does latency matter for servo drives?
Dropout.
On 2/19/2012 1:36 PM, Viesturs Lācis wrote:
2012/2/19 Alan Browningajbrowning2...@yahoo.com:
Thanks for the quick response. So you build your machines from the ground up
with new componenets? Due to budget limitations I have to
- was Re: Which video card/driver for LinuxCNC?
A quick question, does latency matter for servo drives?
Dropout.
Well at some amount of latency it matters but servo systems will tolerate a
lot more latency than software step generation will. 50 - 100 uSec of latency
on a servo system will do
@lists.sourceforge.net
Subject: [Emc-users] Latency - was Re: Which video card/driver for LinuxCNC?
A quick question, does latency matter for servo drives?
Dropout.
Well at some amount of latency it matters but servo systems will tolerate a
lot more latency than software step generation
Dropout wrote:
A quick question, does latency matter for servo drives?
Yes, absolutely. But, it is not as critical. For software stepping,
the base
thread is typically around 20 us, and so a jitter of even 5 us is more than
noticeable. But, on a typical servo system (or a stepper with
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