Message: 1 Date: Mon, 25 Mar 2013 15:25:31 -0400 From: Kent A. Reed
kentallanr...@gmail.com Subject: Re: [Emc-users] Latency problem To:
Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Message-ID: 5150a4ab.6050...@gmail.com Content-Type: text/plain;
charset=ISO-8859-1;
Il 27/03/2013 23:41, emc-users-requ...@lists.sourceforge.net ha scritto:
Message: 2
Date: Wed, 27 Mar 2013 11:35:24 +0100
From: Peter Blodowp.blo...@dreki.de
Subject: Re: [Emc-users] 3PWM on 7i43 MESA board
To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
On 28 March 2013 09:35, Roberto Sassoli bobwolf@gmail.com wrote:
i've downloaded the last xilinx program but i don't understand how can
modify the .xml .BIT and .PIN files included in hostmot's firmware linux
Those are not the files you need to change. The input files to the
Xilinix
G64 does this for you without changing the code.
See
http://www.linuxcnc.org/docs/html/gcode/gcode.html#sec:G64
for more details.
On Wed, Mar 27, 2013 at 6:17 PM, Frank Tkalcevic
fr...@franksworkshop.com.au wrote:
Does anyone know of a script that converts G1 line segments into G2/G3
Gentlemen,
When a control requests a speed from a motor it will send a signal to the
drive ex 500 rpm.
The drive wants to put out 500 rpm of current to the motor but it cannot
because the motor is not turning. The drive knows this because the tach
feedback is zero (the motor is not turning).
continuing our dialog about the latency spikes bjørn is observing with his
Intel D525MW MB
On 3/28/2013 5:23 AM, bjørn wrote:
that I bought the power supply together with the D525MW board. here are a
link -
http://www.ebay.com/itm/160721043666?ssPageName=STRK:MEWAX:IT_trksid=p3984.m1438.l2649
does not appear on mail list yet is timestamped as 1st reply to thread, why?
Original Message
Subject: Re: [Emc-users] tach feedback
Date: Wed, 27 Mar 2013 22:57:03 -0500
From: TJoseph Powderly tjt...@gmail.com
To: Enhanced Machine Controller (EMC)
On 3/28/2013 9:04 AM, TJoseph Powderly wrote:
does not appear on mail list yet is timestamped as 1st reply to thread, why?
Original Message
Subject: Re: [Emc-users] tach feedback
Date: Wed, 27 Mar 2013 22:57:03 -0500
From: TJoseph Powderlytjt...@gmail.com
To: Enhanced
On 03/28/2013 04:35 AM, Roberto Sassoli wrote:
Il 27/03/2013 23:41, emc-users-requ...@lists.sourceforge.net ha scritto:
Message: 2
Date: Wed, 27 Mar 2013 11:35:24 +0100
From: Peter Blodowp.blo...@dreki.de
Subject: Re: [Emc-users] 3PWM on 7i43 MESA board
To: Enhanced Machine Controller (EMC)
On 3/28/2013 7:56 AM, BRIAN GLACKIN wrote:
G64 does this for you without changing the code.
See
http://www.linuxcnc.org/docs/html/gcode/gcode.html#sec:G64
for more details.
On Wed, Mar 27, 2013 at 6:17 PM, Frank Tkalcevic
fr...@franksworkshop.com.au wrote:
Does anyone know of a script
On Mon, Mar 25, 2013 at 8:45 PM, James Boulton james.boul...@xtra.co.nz wrote:
I have run the latency test for a Gigabyte GA-350N motherboard.
On first boot (ran with glxgears and updating 140 add packages through
the system updates):
Servo thread Max: 11411ns
Base thread Max: 10233ns
On 03/28/2013 08:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:04 AM, TJoseph Powderly wrote:
does not appear on mail list yet is timestamped as 1st reply to thread, why?
Original Message
Subject: Re: [Emc-users] tach feedback
Date: Wed, 27 Mar 2013 22:57:03 -0500
From:
On 3/28/2013 9:57 AM, TJoseph Powderly wrote:
On 03/28/2013 08:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:04 AM, TJoseph Powderly wrote:
does not appear on mail list yet is timestamped as 1st reply to thread, why?
Original Message
Subject: Re: [Emc-users] tach feedback
On 03/28/2013 09:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:57 AM, TJoseph Powderly wrote:
On 03/28/2013 08:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:04 AM, TJoseph Powderly wrote:
does not appear on mail list yet is timestamped as 1st reply to thread,
why?
Original Message
Robert
concerning permissions to use the programming hardware,
also the web notes say
to restart udev, issue /etc/init.d/boot.udev restart
no, use
sudo service udev restart
hth
regards
tomp
--
Own the
On 03/28/2013 09:17 AM, Kent A. Reed wrote:
snip
Aha! You probably just need to adjust your list subscription. I don't
recall the setting offhand, but the list server lets you choose either
to get your own messages reflected back to you or not.
success ( well at least i get a msg saying its
On Thu, 28 Mar 2013, Stuart Stevenson wrote:
Date: Thu, 28 Mar 2013 07:05:01 -0500
From: Stuart Stevenson stus...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: dengv...@charter.net,
Enhanced Machine Controller (EMC)
On Thu, 2013-03-28 at 07:05 -0500, Stuart Stevenson wrote:
Gentlemen,
snip
Everyone says the drive/motor servo tuning is the best but if that is
the case why is there tuning capability in LinuxCNC? Obviously, it is
not good enough or no effort would be expended in making it better.
I will
Gentlemen,
The ultimate goal is simplification. When I am tuning a servo system I am
not tuning the motor as much as I am tuning the already tuned servo/motor
system. This piles tuning upon tuning and seems more complicated than it
needs to be.
I am trying to dumb down the drive so the
Stuart Stevenson wrote:
I ask this because I want to remove the drive tuning from the system.
Everyone says the drive/motor servo tuning is the best but if that is the
case why is there tuning capability in LinuxCNC? Obviously, it is not good
enough or no effort would be expended in making it
Jon,
Will your amps handle the motors on my Cinci?
thanks
Stuart
On Thu, Mar 28, 2013 at 11:10 AM, Jon Elson el...@pico-systems.com wrote:
Stuart Stevenson wrote:
I ask this because I want to remove the drive tuning from the system.
Everyone says the drive/motor servo tuning is the best
On Thu, Mar 28, 2013 at 10:51:12AM -0500, Stuart Stevenson wrote:
I am trying to dumb down the drive so the LinuxCNC tuning is directly
effecting the motor motion instead of manipulating the tuned servo system.
My VMC uses velocity mode amps with tachs, and I had one tach that
would
Heh, I have been getting practice with the soldering iron removing parts
BUT that is on a board with no intention of it ever working again. I am
just harvesting plugs to use.
I would be very afraid to try this on a board with any life left. :)
On Thu, Mar 28, 2013 at 11:19 AM, Chris Radek
snip
/I keep mulling over this 5-6 hours observation. I know we recommend
running the latency test for a long time but I don't think we understand
why these spiking events show up rarely. It's all well and good to blame
power saving features in modern CPUs but they are functioning over much
I'm trying to answer a couple of general questions that don't seem like an easy
find on the wiki, etc. Yes I know there are many contributing factors involved
on accurate answers, so a rough ballpark is all I'm looking for.
Without additional hardware:
How many encoder counts per second can be
On 28 March 2013 20:29, Wesley Moore wmo...@jlab.org wrote:
Without additional hardware:
How many encoder counts per second can be handled?
20kHz, maybe 50 on a really low latency machine
What is the PWM frequency range available?
About the same for PDM. For true PWM divide by the
I have an extruder attached to my cnc router.
I've never had much luck with G64. The default settings always round off
sharp corners. I usually use G64 P0.1, which doesn't make much difference
to the speed.
I managed to get the Douglas-Peucker algorithm working. It shaved 4 minutes
off a 20
On Thursday 28 March 2013 17:58:34 TJoseph Powderly did opine:
On 03/28/2013 09:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:57 AM, TJoseph Powderly wrote:
On 03/28/2013 08:17 AM, Kent A. Reed wrote:
On 3/28/2013 9:04 AM, TJoseph Powderly wrote:
does not appear on mail list yet is
On Mar 28, 2013 2:58 PM, bjørn bj...@spesmek.no wrote:
snip
/I keep mulling over this 5-6 hours observation. I know we recommend
running the latency test for a long time but I don't think we understand
why these spiking events show up rarely. It's all well and good to blame
power saving
should the look ahead not resolve this ???
--
jeremy youngs
--
Own the Future-Intel(R) Level Up Game Demo Contest 2013
Rise to greatness in Intel's independent game demo contest. Compete
for recognition, cash, and the
--- On Thu, 3/28/13, Przemek Klosowski przemek.klosow...@gmail.com wrote:
Nice, but the sad thing is that high-performance video
drivers tend to
hit latency (Nvidia is particularly infamous). If you
succeed making
Radeon drivers to run please re-run the latency tests and
report the results.
Watched a lot of plasma table action on Youtube last night. All but one had the
torch on a z axis mount which raised up between cuts then went down to touch
the metal and back up to cutting height before the start of each cut.
The one that didn't had a simple hand crank to set the height. Other
But, as you say, my fundamental issue is losing the curve information when I
convert my CAD models to STL. This will go into the too hard basket for
now - the waterline processing sounds interesting, but I'm put off by
having
to process a CAD file.
Thanks,
Frank
Frank
A few random of
I am altering my new matrix_kb component to not only compile in
sim/userland mode, but to also function.
I think I am pretty much there.
It uses uinput, which needs to be loaded with modprobe, and then the
/dev/uinput file needs its permissions changing.
It seems to me that there should be a way
Stuart Stevenson wrote:
Jon,
Will your amps handle the motors on my Cinci
I may get your machines confused, but I think the Cinci has Gettys motors
and amps. The motors are 8 pole DC brush, and very low voltage and very
high current. My understanding of the Gettys history is they used huge
On Thu, Mar 28, 2013 at 11:19 AM, Chris Radek ch...@timeguy.com wrote:
My VMC uses velocity mode amps with tachs, and I had one tach that
would sometimes give a bumpy output that would cause a banging
once per screw revolution.
Maxon and Escap motors are made with exactly the
Wesley Moore wrote:
I'm trying to answer a couple of general questions that don't seem like an
easy find on the wiki, etc. Yes I know there are many contributing factors
involved on accurate answers, so a rough ballpark is all I'm looking for.
Without additional hardware:
How many encoder
You won't have any issues with the D525MW and an SSD on that Pico power
supply. I have used several and never had a failure yet.
Some have 3+ years on them now..running 24x7.
Dave
On 3/28/2013 2:53 PM, bjørn wrote:
snip
/I keep mulling over this 5-6 hours observation. I know we recommend
If you are cutting thinner metal it will warp and the THC is needed for
that..
Dave
On 3/28/2013 6:40 PM, Gregg Eshelman wrote:
Watched a lot of plasma table action on Youtube last night. All but one had
the torch on a z axis mount which raised up between cuts then went down to
touch the
Can someone point me to where I can find how to change the machine units
resolution in axis? As the default for inch is 0. I would like to go
out to 0.0. What would I need to change to change the displayed
resolution?
--clint
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