On Sat, 14 Apr 2012, Kirk Wallace wrote:
Date: Sat, 14 Apr 2012 14:45:40 -0700
From: Kirk Wallace kwall...@wallacecompany.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: LinuxCNC Users List emc-users@lists.sourceforge.net
Subject: [Emc-users] G540
On 4/15/2012 5:49 AM, andy pugh wrote:
On 1 April 2012 16:24, gene heskettghesk...@wdtv.com wrote:
http://www.cnn.com/2012/04/01/us/pacific-yacht-rescue/index.html
Not good. Disabled in seas like that, they'll either need a tug, or to
abandon. 400 miles out is a long way for a
Hello,
I got troubles setting up my machine. Three small HIWIN linear motors (no
Hall sensors, just UVW inputs and temperature sensor output), linear
encoders, 7i43 with 2x7i39, and I'd like to put it all together. I also
have SVSTTP4_4_7i39 firmware.
Andy Pugh answered my first questions
On 4/15/2012 11:02 AM, Peter C. Wallace wrote:
On Sat, 14 Apr 2012, Kirk Wallace wrote:
Date: Sat, 14 Apr 2012 14:45:40 -0700
From: Kirk Wallacekwall...@wallacecompany.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: LinuxCNC Users
On Sun, 15 Apr 2012, Andrew wrote:
Date: Sun, 15 Apr 2012 18:15:25 +0300
From: Andrew parallel.kinemat...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: [Emc-users] BLDC on
On 4 March 2012 23:49, Bart Libert (EducaSoft) educas...@gmail.com wrote:
and doesn't it make a problem then that my pc has a maximum jitter of
around 45000 ?
My expensive one seems to be lucky as he stays very low in jitter, but
the cheap ones I have go upto 45000 in jitter.
You are making
On 15 April 2012 16:06, Dave e...@dc9.tzo.com wrote:
Was your boat bashed around also from the same large waves or was that boat
hit by a rogue wave?
The other boats were further ahead and missed that particular weather
system, though it was not a great deal more severe than what we had
been
On 15 April 2012 16:15, Andrew parallel.kinemat...@gmail.com wrote:
But the question is when to enable 3pwmgen. Now I just set it always
enabled.
That is probably OK.
That's what I have with this config. Encoders behave strange, only
+-0.005mm change with any movement, like only A or B is
The second picture down on the first link:
I would not consider that a wave... at least not regards to the Great
Lakes waves we experience in the Midwest USA - I would consider that a
mountain of water.. That is crazy big! I can't imagine that water
mountain in the picture breaking over the
On 9 March 2012 03:46, Scott Hasse scott.ha...@gmail.com wrote:
My question is about this analog input.
One way to do this that I keep meaning to experiment with is to use a
PWM output to create a reference voltage, and a comparator to detect
whether it is above or below the voltage to be
Definitely an interesting idea. To answer Thomas' question from earlier, I
was able to read a 500-1000 Hz range reliably enough to successfully
control EDM plunge/retreat for successful EDM on our first try using the
simple conditional gcode I referenced on the wiki page describing this.
A lot
Scott,
thats great!
Your machine will have some response-ability
meaning it just wont react to a sine above a certain frequency
at some point the control signal is saying up/down so fast the machine
tool is just quivering,
not getting to the commanded position.
this is often a basic evaluation
On Sunday, April 15, 2012 03:01:56 PM Scott Hasse did opine:
Definitely an interesting idea. To answer Thomas' question from
earlier, I was able to read a 500-1000 Hz range reliably enough to
successfully control EDM plunge/retreat for successful EDM on our first
try using the simple
andy pugh wrote:
On 14 April 2012 22:45, Kirk Wallace kwall...@wallacecompany.com wrote:
A 660 Ohm
resistor pulled the ramp up higher, but 5V / 660 Ohms = 7.5 mA and is
starting to get into an amp range that could get interesting for pin 16.
I thought that nearly all p-ports can
I think there might be some confusion about what we are reading in via
voltage to frequency using a software encoder velocity in this case. The
analog value read as a frequency between 500 and 1000Hz is a scaled version
of the voltage of the EDM process itself. Our relatively naive
understanding
Just put a few measurements on spindle moter stator power circuitry
on site: http://abcnc.se/projects/storebro260.html
Done with a 100 MHz oscilloscope 1:10 probes, signal ground on chassis.
/ Roger
--
For
I have some scope traces from LinuxCNC's pump below. I haven't had time
to add text to the pictures yet but I'll try to describe them in this
message for now. The group of pictures is here:
http://wallacecompany.com/machine_shop/G540/
Motherboard port, set to SPP in BIOS:
Roger,
You won't have any problem using that spindle drive with LinuxCNC. On
the one drawing - top left corner there is pin 56 and 57. One is the
reference and the other the analog speed input for the drive. I have a
Simoreg drive on my lathe that is probably similar, but newer. Siemens
Is there a small keyboard on that Spindle drive with some led displays?
Dave
On 4/15/2012 6:10 PM, Roger Holmquist wrote:
Just put a few measurements on spindle moter stator power circuitry
on site: http://abcnc.se/projects/storebro260.html
Done with a 100 MHz oscilloscope 1:10 probes,
On Sunday, April 15, 2012 09:24:08 PM Kirk Wallace did opine:
I have some scope traces from LinuxCNC's pump below. I haven't had time
to add text to the pictures yet but I'll try to describe them in this
message for now. The group of pictures is here:
Kirk,
In every case except the motherboard you describe
the waveform as being the same for SPP or EPP mode.
This leads me to believe that none of the cards are
actually going into EPP mode. What were you using
to set the cards to EPP mode?
Regards,
Steve Stallings
-Original Message-
Kirk,
Oops, I now realize that you did get different
result for the Startech card in EPP mode. Did
you have a utility from Startech to set that
board to EPP mode, or did you use one of the
utilities from Jon Elson or a similar routine?
Steve Stallings
-Original Message-
From: Kirk
On Sun, 2012-04-15 at 22:05 -0500, Steve Stallings wrote:
Kirk,
Oops, I now realize that you did get different
result for the Startech card in EPP mode. Did
you have a utility from Startech to set that
board to EPP mode, or did you use one of the
utilities from Jon Elson or a similar
On Sun, 2012-04-15 at 21:37 -0400, gene heskett wrote:
... snip
What happens if the pump frequency is reduced to say 10% of what its set at
now?
I haven't tried that. If I disconnect the G540 so there is no load on
the parallel port pin, the charge pump is a clean square wave. I used
10x on
gene heskett wrote:
Looking at the scope traces, either the probe is way out of calibration
against the scopes own test square wave, or the 540 has a low value series
resistor, 33-120 ohm range, with several hundred pf on the other side of
the resistor as a noise filter on that input, and
On Sunday, April 15, 2012 11:55:24 PM Kirk Wallace did opine:
On Sun, 2012-04-15 at 21:37 -0400, gene heskett wrote:
... snip
What happens if the pump frequency is reduced to say 10% of what its
set at now?
I haven't tried that. If I disconnect the G540 so there is no load on
the
On Monday, April 16, 2012 12:05:22 AM Jon Elson did opine:
gene heskett wrote:
Looking at the scope traces, either the probe is way out of
calibration against the scopes own test square wave, or the 540 has a
low value series resistor, 33-120 ohm range, with several hundred pf
on the
Hi Gene,
You don't want to use an opto-isolation card with the G540 as it already
is opto-isolated.
Cheers,
peter
---
Peter Homann
http://www.homanndesigns.com/store
On Mon 16/04/12 2:04 PM , gene heskett wrote:On Sunday, April 15, 2012
11:55:24 PM Kirk
I need to find the start of this thread. i am running a G540, an Intel
M525MW board with Probotix steppers motors and all 3 axes move fine. I
just need to calibrate them for proper distance and get the homing Hall
effect sensors connected.I am not running the charge pump enabled in the
G540.
Pretty sure that the SOT 3 device will be a reverse voltage protection
diode for the opto LED diode. pf caps are not usually termed big ones.
I would ecpect that the charge pump circuitry is on the other side of the
opto.
Cheers,
Peter.
---
Peter Homann
For whatever reason, the G540 charge pump input works fine with the
Intel D525MW board and LinuxCNC.
Whether or not you use it is really up to you.
The Intel D525MW board may be the cheap fix to the G540 charge pump
compatibility issue. :-/
Dave
On 4/16/2012 12:23 AM, Gary P. Fiber wrote:
I tried a 75AC541 buffer on the SIIG card:
http://wallacecompany.com/machine_shop/G540/g540_siig_buf.jpg
and then tried it unbuffered at 1kHz:
http://wallacecompany.com/machine_shop/G540/g540_siig_1kHz.jpg
I got a green LED on both. The SIIG worked at 5kHz unbuffered too, but
peaked 1 Volt
16 apr 2012 kl. 03:38 skrev emc-users-requ...@lists.sourceforge.net:
Is there a small keyboard on that Spindle drive with some led
displays?
Thanks for your response Dave!
I don't think i have any such devices, there is some LED-lights but
no displays on some cards and no visible
On Sun, 2012-04-15 at 21:23 -0700, Gary P. Fiber wrote:
I need to find the start of this thread. i am running a G540, an Intel
M525MW board with Probotix steppers motors and all 3 axes move fine. I
just need to calibrate them for proper distance and get the homing Hall
effect sensors
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