Hi,
Your are most probably in some mechanical resonance. You can try to tune
the DM860 for this, using the tools from leadshine "protuner"
http://www.leadshine.com/productdetail.aspx?type=products&category=stepper-products&producttype=stepper-drives&series=DM&model=DM870
Claude
Le 20.04.2016
Hi,
Thank you all for your informations.
I think I will go with 6i25 + 7i77, and most probably a 7i84 for the
additional digital In/out.
Claude
Le 21.01.2016 18:41, Andrew a écrit :
> 2016-01-21 18:53 GMT+02:00 Claude Froidevaux :
>
>> Hi,
>>
>> I may have a nice p
Linear ? angular ? multiturn ?
I have really pleasant result with IC-HAUS Biss product (using SPI
communication for micro controller). For linear absolute, IC-MU is
really neat. It can be used as well for high resolution count angular.
Claude
Le 21.01.2016 23:45, Stuart Stevenson a écrit :
> G
Hi,
I may have a nice project of retrofitting a lathe (about 20kW, quite a
nice toy, but with an old control that is dead)
I tested servo driver, they work. So basicely, all I need is:
- 3 output +- 10V (to give speed consign to servo amplifier)
- 4 quadrature input encoder (I checked this, its
with an external computer, you can spy both send and receive data using
two serial port (each wired on receive input and ground only). I
remember to have used a program for serial monitoring using this
technique (under DOS), but I cannot recall the name.
Claude
Le 23.04.2015 18:15, Jon Elson a
another possibility with python:
https://code.google.com/p/modbus-tk/ (work with serial and ethernet
modbus protocol, very handy)
for serial, the adaptor I use mostly :
http://sigma-shop.com/product/68/usb-to-rs485-ftdi-interface-board-pcb.html
work with my specific hardware @500kbauds, u
Le 31.07.2014 12:10, Gene Heskett a écrit :
> Basically, I want something that will overwrite any existing offsets,
> as opposed to adding to the existing ones at the instant of the call.
> Looking it up and reading it on that machine, that line about
> "calculated" is the confusing part.
IMHO
Le 09.07.2014 23:09, Przemek Klosowski a écrit :
> On Wed, Jul 9, 2014 at 12:23 PM, Claude Froidevaux
> wrote:
>
>> to get en estimate of needed voltage:
>>
>> get the speed you need in rad/s (1t/s --> 6.28 rad/s)
>> multiply by the torque in Nm
>>
>&
that shall do the
tricks! (so 50V needed at least)
this is a really rough calculation, but it help a lot to know what is
needed.
Claude
Le 05.07.2014 19:08, Gene Heskett a écrit :
> On Saturday 05 July 2014 12:06:33 Claude Froidevaux did opine
> And Gene did reply:
>> Hi,
&
Hi,
leadshine is a china brand of good quality stepper driver
(automationlogic seem to be leadshine model DM856 for example, there is
a lot of re-branding within leadshine drives)
I like the digital version (DM series, you can tune out some resonance,
work well). I don't know much about the st
Le 21.10.2013 18:58, Kirk Wallace a écrit :
> Andy, by the way, I tried a Delon doubler on a 240VAC 3ϕ VFD from 120VAC
> 1ϕ. I seem to recall the DC output was around 360VDC, but the VFD didn't
> seem to mind. I was hoping to try the Delon on 240VAC 1ϕ, but it seems
> the output would be around 720
Le 22.09.2013 06:54, Gregg Eshelman a écrit :
> That's not the weird thing. What is effed up is that when the motor is
> running if I pick it up or move it, it stops running. Doesn't matter if it's
> laying down or standing on its back end, if it's picked straight up or
> allowed to rotate arou
Le 08.08.2013 05:45, TJoseph Powderly a écrit :
> On 08/07/2013 06:34 PM, Andy Pugh wrote:
>>
>> On 7 Aug 2013, at 23:49, TJoseph Powderly wrote
>>> non-linear?, ok
>>> i read it repeated to same value from origin, but was consistantly off
>>> at some extreme.
>>> np. discount bad mounting
>> It s
Agree, for example this line to arc is NOT tangent:
N300 G1 X4.121 Y88.649 Z-1.000
N310 G1 X4.891 Y91.654 Z-1.000
N320 G2 X8.045 Y101.818 I125.643 J-33.412
I don't know what mach3 is doing to go full speed trough this, but it is
theoretically not possible to go full continuous speed trough this
I tried your value, and it seem you are really close to the max
frequency drive for the stepper.
Can you try to change scale on all 3 axis (divide bay 10) and check that
the total time is still the same or not ? this will help to understand
if this a trajectory interpolation limitation or a max
on Ubuntu. It may well run with the real time kernel.
>>
>>
>> On Wed, Apr 3, 2013 at 8:41 AM, Claude Froidevaux wrote:
>>
>>> Hi,
>>>
>>> Installing linux CNC on a different distribution is far from easy, as it
>>> need real time cap
Hi,
Installing linux CNC on a different distribution is far from easy, as it
need real time capabilities (RTAI). If you want to use different OS, you
can simply install as many as you want on different partition. What you
need is a few minute figuring partition size and to not use entire disk
Hi,
I'm giving some help to a friend that start a mechanical manufacturing
shop. First machine to get running (in a few week) will be a 3 axis
small CNC. This machine shall be no problem from what I have done before
with LinuxCNC.
but..
He asked me If I can restart an old CNC Lathe, that is p
Hi,
For a specific project, I ordered an all in one computer. Its name:
Shuttle X5020XA PLUS. I took a short time testing it with linuxCNC (it
will not be the final use for this project, but I may use it latter for
other project).
I spend some time getting the touchscreen working, (need to add
Are you sure the encoder work (you can read position change ?, and not
only +- 1 incr.)
Le 20.12.2012 13:39, Viesturs Lācis a écrit :
> Yupp, tried that, all 4 possible combinations of plus/minus signs for
> input _scale and output_scale, but no improvement.
---
Hi,
run away is the typical behaviour when the PID loop is on wrong polarity
(try changing INPUT_SCALE or output scale with negative number)
also, D term is really important, having P only may easily behave in
vibration. I personally prefer starting with quite a lot of D (upon it
start to vibr
écrit :
> Claude,
>
> Did it "moan" in the same kind of way?
>
> Thanks,
> Mark
>
> On Thu, Nov 22, 2012 at 9:22 AM, Claude Froidevaux wrote:
>> On a Aoyue soldering station, the transformer screw fixation where not
>> tight, making it rumble. 10 second
On a Aoyue soldering station, the transformer screw fixation where not
tight, making it rumble. 10 second repair!
Le 22.11.2012 14:13, Mark Wendt a écrit :
> I've got a Hakko 472 that "Just Works" tm. However, it has one little
> really annoying trait. The transformer "moans." By that, I mea
230V).
Le 21.11.2012 18:41, Przemek Klosowski a écrit :
> On Wed, Nov 21, 2012 at 2:37 AM, Claude Froidevaux wrote:
>
>> If you put neutral on terminal L1 and phase on terminal 2 and 3, it
>> will simply parallel 2 leg of the rectifier, this will change nothing.
>>
users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
--
Togatec Sarl Claude Froidevaux Rue de l'Helvetie 31 2300 La Chaux-de-Fonds
--
Monitor your physi
It can be both trajectory planning (especially if G-code is really
heavy), and acceleration.
High acceleration is a need to have fast curve speed, thus keeping high
moving speed on difficult trajectory.
Le 21.09.2012 13:32, aaron moore a écrit :
> Hi EMC
> I have a router running emc. Feed s
Le 30.08.2012 21:25, N. Christopher Perry a écrit :
> That great info. Thank you!
>
> If they were 1-2 mH in unipolar mode, then when parallel connected for
> bipolar mode operation they should be closer to 2-4 mH, which is just about
> right.
series connected will give 2-4mH, parallel connect
I'm using linuxCNC for some special project, using mostly MDI command
from specific software (python and Qt). This reduce development time, as
all the motion is already up and running, but bring some difficulties:
- cannot start a move if some other are still running (this is typical
for an auto
Do any one have information on the Screen/keyboard used ? (first general
picture)
It look really good and professional, but Il look a lot like a fanuc
display
Le jeudi, 19. juillet 2012 18:20:26, sam sokolik a écrit :
>
> Don't know much about this - but half way through the video they s
Le 23.05.2012 19:11, Jon Elson a écrit :
>> On May 23, 2012, at 2:01 AM, Claude Froidevaux wrote:
>>
>>
>>> 1) make a hal check, that disable drive if more than 5-10 consecutive
>>> sample period with maximum drive output without any encoder change
>>
Le 23.05.2012 10:05, Jeshua Lacock a écrit :
> On May 23, 2012, at 2:01 AM, Claude Froidevaux wrote:
>
>> 1) make a hal check, that disable drive if more than 5-10 consecutive
>> sample period with maximum drive output without any encoder change
>>
>> 2) if you use
1) make a hal check, that disable drive if more than 5-10 consecutive
sample period with maximum drive output without any encoder change
2) if you use a hal encoder (brushless motor), use it as second encoder,
and cut motor power if more than about 20° of error between both
theses are not perf
Glass scale is THE solution for really high precision. (this remove ball
screws geometric error, as well as mostly all flexure error).
Unfortunately, it is usually not possible to get a good servo loop with
the linear glass directly, thus an encoder on the motor is still needed
(mostly to have
Le 15.05.2012 14:27, Erik Christiansen a écrit :
> On 14.05.12 08:15, Ted Hyde wrote:
>> I've noticed that the current online spec sheet for the standard
>> PicoPSU says PG is acceptable between 10.5 and 13.5 vdc. It's not a
>> "bold statement spec" - you have to hunt for it. However, I'd believe
>
Le 17.05.2012 05:26, Kent A. Reed a écrit :
> On 5/16/2012 7:26 PM, Kirk Wallace wrote:
>> I wonder if this uses g-code?
>>
>> http://www.youtube.com/embed/yigRgG_NIyU
>>
> This is very cool. Less impressive, perhaps, but still interesting is
> the DIY wire bender
> http://hackaday.com/2012/05/04/
I use a chinese model with DSP, and it include 3 notch finder that kill
resonance frequency. (well, this is not exactly a notch finder, but it
kill a mechanical resonance)
even using the microstep mode, if you need a really smooth motion, you
will notice that a standard stepper driver (even wit
Le 25.04.2012 18:51, Andrew a écrit :
> 25 квітня 2012 р. 19:24 Viesturs Lācis написав:
>
>> That 8GB card was ~19 usd, add 4 usd for adapter. There is a
>> considerable price difference, when compared to SSDs and other
>> alternatives.
>>
> I wouldn't say, Viesturs...
> http://www.ebay.com/itm/27
Hi,
I do several test to use USB flashdrive pen instead of harddisk for
linuxCNC machine. Today, for mass memory, choice are :
- harddisk
- SSD
- special kind of SSD, with small capacity (DOM), directly plugable on
sata or IDE port.
basically, entry price is about the same for the 3 technology
Hi,
Time to give my point of view (really interesting threat).
IMHO, stopping inside the next code block is absolutely not needed. What
is needed, is that all processed lookahead line are stocked inside the
real-time part (EMC) and not in Axis or any other application. (EMC will
eat as many li
Hi,
I never used them, but a respectable seller in europe sell them for
typical CN use:
http://www.kinco.cn/html/en/products/Servo&Stepper/Servo&Stepper_overview/
Again, I never use them, so, other advice would be welcome.
Le 21.04.2012 03:20, Leonardo Marsaglia a écrit :
> Sorry, I meant th
Hi,
I do it for some special machine. I use Python (as axis), with pyqt. (I
completely remove axis)
My programming skill is far (really far..) from perfect, but if you want
an example, I can give it to you (a really simple example is
http://axis.unpy.net/01167419757 (but I think it does not wo
Le 22.02.2012 21:48, Kirk Wallace a écrit :
> I want to mount an outrunner (or other) to a NMTB40 tool holder to try
> some circuit board routing. I like the outrunner form because it looks
> like the motors seem shorter for the same power. I haven't flown model
> planes for over twenty years so I'
Le 08.02.2012 08:50, Don Stanley a écrit :
> Hi All;
> All my shop EMC2 applications are running on D510M0's.
> Is this also a good choice for the new one?
>
> After EMC2 was taught how to deal with the D510M0's printer port strangeness,
> the have done great except for boot up after being powered
Le 07.02.2012 21:41, Kirk Wallace a écrit :
> On Tue, 2012-02-07 at 22:20 +0200, Viesturs Lācis wrote:
>> 2012/2/7 Kirk Wallace:
>>> On Tue, 2012-02-07 at 14:40 +0100, Claude Froidevaux wrote:
>>>
>>>> In case I'm doomed, I will most probably try wit
Le 07.02.2012 18:39, Kirk Wallace a écrit :
> On Tue, 2012-02-07 at 14:40 +0100, Claude Froidevaux wrote:
>> Hi,
>>
>> It seems the Pluto can work okay when properly set up, but it takes a
>> bit of effort and luck. Apparently, it's not quite broken enough for
>
Le 07.02.2012 16:13, Chris Radek a écrit :
> On Tue, Feb 07, 2012 at 02:40:44PM +0100, Claude Froidevaux wrote:
> If your Atom board has a built-in parallel port, try that. Otherwise,
> try a non-netmos pci card, or a different computer or two (with
> built-in ports).
Hi,
reading yo
warning on the documentation.
Best regards,
Claude Froidevaux
--
Keep Your Developer Skills Current with LearnDevNow!
The most comprehensive online learning library for Microsoft developers
is just $99.99! Visual Studio,
Le 22.12.2011 17:45, Anders Wallin a écrit :
>> I have been given a quote for electrochemical machining of an encoder
>> for my project.
>> http://www.photofab.co.uk/index.php/services/chemical-etch-photo-etch/
>> There is a £95 setup charge, then another £100 for a sheet of parts. I
>> get 25 of m
This is a today CNC for watch industry prototyping (without the control
rack now!):
http://www.bctechnologies.ch/images/stories/pdf/BCT-80-CNC.pdf
Claude
Le 16.11.2011 16:31, andy pugh a écrit :
> On 16 November 2011 14:23, wrote:
>
>> What if I wanted to make say watch parts
> Are you very w
Le 07.06.2011 07:54, Viesturs Lācis a écrit :
> Hello, gentlemen!
>
> It seems to me that I am making another trivial mistake, I just do not
> understand, where and how.
> The thing is that on the robot max jogging speed in is 60 mm/min. If I
> set speed override to 200%, then I get 120 mm/min.
> I
Le 16.04.2011 14:15, kqt4a...@comcast.net a écrit :
> On Thu, 14 Apr 2011, Andrew wrote:
>
>> 2011/4/14 Michael Jones
>>
-Original Message-
From: Andrew [mailto:parallel.kinemat...@gmail.com]
Sent: Tuesday, April 12, 2011 12:37 PM
To: Enhanced Machine Controller (EMC)
>>
Le 18.11.2010 14:15, Dave Caroline a écrit :
> enjoy
> http://www.shipsnostalgia.com/guides/William_Doxford_and_Sons#The_Manufacturing_Process
>
> Dave Caroline (archivist)
Thanks, beautiful pictures !
--
Beautiful is wr
Le 30.09.2009 18:53, eu-0...@pardo.net a écrit :
> Hi, newbie EMC/G-code question:
>
> I would like to make a slot with parallel sides, say a 10mm cutter
> making an 11mm slot:
>
> G1 X10 Y0
> G1 X10 Y1
> G1 X0 Y1
>
Hi,
assuming you start from X0 Y0, and you don't care about
Le 04.09.2009 10:43, Yann Jautard a écrit :
> Hi all,
>
> (sorry for my poor english, I'm from france)
>
> I'm doing a machine to apply glue for photovoltaics modules assembly.
>
> The goal is to apply a line of silicon glue around a metal frame, before
> assembly of the frame with the laminated p
ed is simply to get information like Hall meter is
giving in axis (status of input), but even with a close look to axis
source code, I didn't find the tricks.
Any help welcome
Claude Froidevaux a écrit :
> Hi Jeff,
>
> Thanks for the prompt answer.
>
> Got your point, it seem a go
Hi Jeff,
Thanks for the prompt answer.
Got your point, it seem a good solution. I found this documentation:
http://www.linuxcnc.org/docview/html//hal_halmodule.html
I see also at chapter 1.4 that direct access seem possible, I will try
both way, soon!
Claude
Jeff Epler a écrit :
> Python pro
Hi,
For a specific HMI, I need to do operation when some Inputs are in
defined state (homing after some input in 0 state for example). What is
the good way to access hal Input (and output!) from jdi.py program ?
regards,
Claude
-
Hi,
Finally I got the point, homing is working.
Thanks for the help, and continue the good work, emc is a really nice
package.
Claude
-
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build
to complete,
and I now looking for this informations!
Is there somewhere a list of all available command and signal that can
be used in python for EMC control ?
Regards
Claude
Chris Radek a écrit :
> On Wed, Nov 05, 2008 at 09:56:40PM +0100, Claude Froidevaux wrote:
>
>> I wa
Hi,
This is my first message here, altough there is some times already I'm
playing with emc2.
I want to make a home (same as "home all" on axis). As much as I look,
it seem to be the command c.home(-1)... but it didn't work (no error are
show). When I say it didn't work, my only way to check r
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