Sorry, for the double-post, do not know, how did I do that...
2012. gada 17. marts 15:13 Viesturs Lācis viesturs.la...@gmail.com rakstīja:
Anyway, I still get this in error message:
Can not find -sec MOT -var MOT -num 1
Can not find -sec IO -var IO -num 1
Can not find -sec TASK -var
2012/3/17 Peter C. Wallace p...@mesanet.com:
I cannot see how any of those errors are eveny vaguely related to the
bitfile
I do understand that. The fact is that it works with this:
CONFIG=firmware=hm2/7i43/SVST4_4B.BIT num_encoders=3 num_pwmgens=3
num_stepgens=0
It does not work with this:
2012/3/17 Peter C. Wallace p...@mesanet.com:
Looks right, though it probably should have the right number of 0's or X's for
the number of sserial channels the config contains
How do I find that out? The firmware is BOSSV.BIT, the one You sent to
John Murphy a week or two ago.
what does dmesg
2012/3/17 Peter C. Wallace p...@mesanet.com:
Oh OK its a ancient bit file (dmesg is much more useful)
So that means that You will send me something else, right? :))
Viesturs
--
This SF email is sponsosred by:
Try
2012/3/17 Peter C. Wallace p...@mesanet.com:
Those number do not match what I have for the BOSSVSS config so that is not
a current bit file (John Murphy must have sent you an old one by mistake)
Configuration Name: HOSTMOT2
General configuration information:
Module: SSerial
There are
2012/3/15 Roger Holmquist ro...@abcnc.se:
Hello everybody!
Have just got reason to join the CNC-developing community.
Considering LinuxCNC as a professional machine control system
replacing older control systems versions from FANUC, Heidenhahn,
Siemens etc
I think that Youtube has enough
2012/3/15 Scott Hasse scott.ha...@gmail.com:
with the frequency out going to an isolated I/O daughter
card input (Mesa 7i37 I believe) of a Mesa 5i23. The problem to me seems
to be the software encoder rate, which I believe I would hit with your
suggestion as well.
Any particular reason not
2012/3/13 Jeff Epler jep...@unpythonic.net:
It appears that if you visit an other-language page such as
http://linuxcnc.org/index.php/russian
that the front page will later appear in that language by default.
I just checked by opening this link and then typing www.linuxcnc.org
in address
2012/3/13 Brad Murry bradod...@hotmail.com:
You would be able to setup a nice linux box tuned for EMC and then access it
from another linux machine, a windows PC , tablet or even a smart phone
potentially.(smartphone control pendants would be excellent)
Hmm, now that You explain it like this,
Hello, gentlemen!
I am trying to test the performance of 8i20 drive with my servo motors.
I have 7i43 card, latest buildbot version 2.5.0-pre-2-916 and a
firmware file, kindly provided by Andy Pugh.
In INI file I have:
CONFIG=firmware=hm2/7i43-4/SVSS4_8_48.BIT num_encoders=1
num_sserial=1
2012/3/8 charles green xxzzb...@yahoo.com:
the disposal liabilty pcs of a decade vintage have plenty of capacity to
function as machine controllers, so why not repurpose them to that task
rather than a dumpsite?
Ok, I totally agree with the point on nature-responsible (hopefully I
spelled
2012/3/8 charles green xxzzb...@yahoo.com:
the machines i work with only have tape drives and serial ports, so all cam
files are sent over serial lines as text (ascii i think). failed controller
component replacement is a problem because the hardware platform does not
have long term
2012/3/8 charles green xxzzb...@yahoo.com:
It's true if all you want is a machine controller and
nothing else.
so, again, strictly in the capacity of a machine controller, turbo cnc vs
linuxcnc, the comparison and contrast results are what? have you a basis for
comparison? do not limit
2012/3/8 charles green xxzzb...@yahoo.com:
cnczone - ive seen that before somehow.
Probably You saw it mentioned in other discussion, where I posted it,
but did You read it? I had a link in there that explains Your next
question.
the task manager of winxp has a process priority setting, with
2012/3/8 John Stewart alex.stew...@crc.ca:
Much of my model building is simple machining operations, and I *do* find
myself using my old mill rather than my new CNC one, because it's just faster
to throw in a bit of material and machine it.
Hmm, I have yet to grow to get my first mill or
2012/3/9 Scott Hasse scott.ha...@gmail.com:
Has anyone used a circuit with a voltage to frequency converter (LM331 or
similar) to create a digital pulse train read in linuxCNC as an encoder I
presume and then hooked that up to the analog m66 inputs?
I have it for nozzle-height-control. I
2012/3/9 Dave e...@dc9.tzo.com:
Mesa has their THC board that I believe does exactly what you are
looking for.
Dave, I think that it is unclear, if the problem is with the hardware,
or with the signal handling within LinuxCNC...
Look at the very last item on this page:
2012/3/7 John Stewart alex.stew...@crc.ca:
Hi all;
As we all know, Mach3 has a list of wizards to do simple things like
pocketing, etc, without the need to do the g-code.
I feel that NGCGUI basically is the same:
http://www.youtube.com/watch?v=Bn8T5Fw0ISs
Viesturs
2012/3/7 charles green xxzzb...@yahoo.com:
hmm. has anyone else tried turbo cnc?
I guess that this is not the right place to ask this question - we are
LinuxCNC users here :))
And why should anyone of us use TurboCNC anyway, if LinuxCNC provides
more features and better performance?
With
2012/3/7 Greg Bernard yankeelena2...@yahoo.com:
I have to say that as a newbie 2 years ago I did a trial of both Mach and
LinuxCNC. Even with practically no knowledge of Linux I found LinuxCNC to be
no more difficult to set up using the LiveCD than Mach was.
Could not say more precise about
2012/3/8 John Stewart alex.stew...@crc.ca:
Agreed.
Saying that - here we go with *my* scan through the documents and how *I*
missed NGCGUI.
Sorry, I think that ngcgui does not fit in the category getting
started with LinuxCNC, I find it to be somewhat advanced (maybe
because I have no need
2012/3/6 Tony Zampini zampi...@cox.net:
Is there a way to prevent Ubuntu from checking for updates?
Yes, in Update manager settings automatic checking for updates can be
turned off.
But then it after few weeks will display an icon, which will tell that
update information is outdated, so what I
2012/3/5 Bart Libert (EducaSoft) educas...@gmail.com:
at $250 this pico board would be a lot more expensive then the 7i43 solution
As I and Jon already mentioned, Pico's card already includes things
that You very lickely are going to need anyway - optoisolators on
limit switch inputs, some
2012/3/5 Peter C. Wallace p...@mesanet.com:
There will be a 5I25 configuration utility for Linux fairly soon.
Re-configuring a 5I25 will likely never be as quite as easy as the live
reconfigurable cards like the 7I43 and 5I2X, as it requires a power cycle
after the new configuration is
2012/3/4 Andrew parallel.kinemat...@gmail.com:
Hello,
I have two encoders on one axis, and I'd like to see the difference between
their readings with hal scope. The first encoder is on the motor, it's
'axis.0.motor-pos-fb', and the second linear encoder is connected to
'axis.1.motor-pos-fb'
2012/3/4 Bart Libert (EducaSoft) educas...@gmail.com:
So... is there any way that I could put some kind of card into my pc
(a regular $400 household machine) which could take care of these
timings, so that I could nicely to 50kHz, but with a lot cheaper PC ?
What is that You need to do at
2012/3/4 Bart Libert (EducaSoft) educas...@gmail.com:
Where do I find that information then? Or is mesa only provider of
these cards and is firmware a whole other story ?
Of course, no. There are packages in LinuxCNC repository that contain
firmwares of particular card for most frequently used
2012/3/3 Anders Wallin anders.e.e.wal...@gmail.com:
To make your design fool-proof you need to sense current, possibly on
all three motor phases, and do it reliably and quickly in order to
shutdown the IRAMS and/or pwm-source when something bad happens.
Anders, can You suggest, how to
2012/3/4 Kirk Wallace kwall...@wallacecompany.com:
I'm just wondering, how many out there have VFD's without Modbus or
other communication and might want it on their existing drives?
I built a routing machine and spindle has a VFD, which is now operated
only by its control panel - Start/Stop
2012/3/2 Kirk Wallace kwall...@wallacecompany.com:
(First Message may have failed due to attachment too big)
Attached is my first pass at an IRAMS circuit. It's pretty much a copy
of the IRF datasheet example. The plan is to hook up the digital signals
to an FPGA card, Pluto-P if I can find
2012/2/28 kqt4a...@gmail.com:
I ordered the card with PROB_RFX2 firmware to drive a probotix controller
I am not 100% sure but I thought I would only need to change the addresss in
my ini file
I have set up 2 machines with 5i25 and also with 5i23. I do not
remember any address for pci cards
2012/2/28 kqt4a...@gmail.com:
On Tue, 28 Feb 2012, Viesturs Lācis wrote:
I have set up 2 machines with 5i25 and also with 5i23. I do not
remember any address for pci cards in INI or HAL files.
Could You, please, explain, what kind of address You mean?
In my .hal file 'loadrt hal_parport
2012/2/28 kqt4a...@gmail.com:
Now I have CONFIG=
And that is it? No stepgens or pwmgens or encoder modules loaded?
Paste Your INI and HAL files somewhere for public review.
Viesturs
--
Keep Your Developer Skills
2012/2/28 kqt4a...@gmail.com:
'/usr/realtime-2.6.32-122-rtai/modules/emc2/hm2_pci.ko': -1 No such device
My unqualified guess is that 5i25 card is not recognized.
I will leave this for more knowledgeable users to comment.
Do You have a chance to attach the HDD and 5i25 to another motherboard
2012/2/28 sam sokolik sa...@empirescreen.com:
Viesturs
You must have a
firmware=whatever.bit
somewhere... Could it be in your hal file? Otherwise I don't think it will
work..
No, 5i25 is different from other Mesa pci cards, the firmware is
loaded and stored right in the card. When I
2012/2/27 Jon Elson el...@pico-systems.com:
Mark Haynes wrote:
Is linuxCNC currently funded?
Never has been, and a number of board and other members have said never
will be!
I'm not sure I agree with that, but there has been a strong sentiment to
not let it be
beholden to some company. I
2012/2/26 Dave Caroline dave.thearchiv...@gmail.com:
I think there be bugs
http://www.clipperroundtheworld.com/index.php/teams/derry-londonderry//crew-profiles/crew/
At least in this link Andy has his real picture, I have no idea who is
the guy in the link of the very first post :)
Viesturs
2012/2/25 Lee Osborne l...@lomach.com:
Hi
Can anyone help with making a user m code for a digital output on a
mesa 5i20, 7i33 and 7i37 set up. I have managed to get all the servos
working and coolant but I have extra digital outputs connected to
solenoids for a toolchanger. I have tried
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
2012/2/20 Erik Friesen e...@aercon.net:
It seems that there needs to be functionality built in to allow something down
the line of kmotion? perhaps?
I took a quick look at their homepage and their product descriptions.
Probably I missed something, but what is that additional functionality
that
2012/2/19 Alan Browning ajbrowning2...@yahoo.com:
I'm in the beginning stages of planning a DIY CNC machine using Ubuntu and
LinuxCNC. The Problematic Hardware section of the doc says that onboard video
is problematic.
I think that the statement about onboard video cards being problematic
is
2012/2/19 Alan Browning ajbrowning2...@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 build things on the
cheap.
2 of those machines were completely new builds, 2 were retrofits, one
of the
2012/2/18 Andrew parallel.kinemat...@gmail.com:
2012/2/18 Don Stanley dstanley1...@gmail.com
It is kind of a bother to apply power to the system, then
have to open the electronics cabinet and push that funny little button.
That's what I thought too.
And that is why I brought the Power
2012/2/14 Spiderdab 77...@tiscali.it:
what if (talking about mm units) i exagerate the P
value to..let's say 1000 mm, in a 'spline' made of a thousand of 1mm
lines? What the machine is expected to do?
It would do the shortest and fastest move from start to finish, taking
into account the max
2012/2/13 Viesturs Lācis viesturs.la...@gmail.com:
Any chance You might share something, because now I do not see a
chance to understand the logics, how is all the THC thing working.
My apologies, I had missed the link to PDF file.
Viesturs
2012/2/13 Tom Easterday tom-...@bgp.nu:
We talk about the distance in the Motors section. We have the
Keling KL-34GH101 10:1 gearboxes on the X and Y joints
(http://kelinginc.net/CNCGEARBOX.html) with a 2 diameter
pinion gear. 1 rev moves the truck 0.6283”.
Sorry, now that You mention I
2012/2/13 Tom Easterday tom-...@bgp.nu:
We have not noticed that any parts on the machine get warm to the touch.
Tom, thank You for sharing!
I asked about the heat because I once had a talk with local guys that
are local dealers of some foreign plasma table manufacturer and that
were thinking
2012/2/11 andy pugh bodge...@gmail.com:
On 11 February 2012 18:04, Kirk Wallace kwall...@wallacecompany.com wrote:
Andy, I recall seeing a picture from you with a blown IRAMS. I'm hoping
to order some, but I would like to learn what I can before hooking them
up. Do you have any on-line notes
2012/2/12 andy pugh bodge...@gmail.com:
On 12 February 2012 08:46, Viesturs Lācis viesturs.la...@gmail.com wrote:
Could You point out some links? I did not find anything motor drive
related in his site.
http://www.anderswallin.net/2006/06/first-steps-with-brushless-servodrive-microchip
2012/2/8 Anders Wallin anders.e.e.wal...@gmail.com:
I see a problem with using gcode generating software languages to
machine complex geometries.
So, another conclusion from this discussion would be Do Cutsim instead !?
Joseph Coffland seems to have
independently made great progress at
2012/2/8 Lars Andersson l...@larsandersson.com:
-Original Message-
From: andy pugh [mailto:bodge...@gmail.com]
Sent: den 8 februari 2012 08:28
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] AXIS default jog speed on A-axis
2012/2/8 andy pugh bodge...@gmail.com:
On 8 February 2012 14:02, Viesturs Lācis viesturs.la...@gmail.com wrote:
Erik proposed this line:
Arc CW X0 Y1 Centre X1 Y0.5 Feedrate 25
Is centre x1 y0,5 are incremental distance from current point or
absolute coordinates of center point?
I think
2012/2/8 Erik Christiansen dva...@internode.on.net:
Experiments with new grammars are only to see if there are benefits to
_some_ users in having a more explicit input syntax, which is then
converted to gcode.
Thank You for clarification!
I am all right now :)
Viesturs
2012/2/8 Spiderdab 77...@tiscali.it:
In the same link is written also that one can add a new thread, if the
base thread period is different from what needed (mine was 49k and
something..). So do you think is better to add a new thread dedicated to
the SCHP (charge-pump), or to lower the
2012/2/7 Kirk Wallace kwall...@wallacecompany.com:
On Tue, 2012-02-07 at 14:40 +0100, Claude Froidevaux wrote:
In case I'm doomed, I will most probably try with a mesa 5I25 board. Can
anyone confirm that it work ? (this time I ask first !!)
I've gotten mine to work okay, so it can be done.
2012/2/7 Kirk Wallace kwall...@wallacecompany.com:
On Tue, 2012-02-07 at 22:20 +0200, Viesturs Lācis wrote:
2012/2/7 Kirk Wallace kwall...@wallacecompany.com:
On Tue, 2012-02-07 at 14:40 +0100, Claude Froidevaux wrote:
In case I'm doomed, I will most probably try with a mesa 5I25 board
2012/2/7 Lars Andersson l...@larsandersson.com:
From: andy pugh [mailto:bodge...@gmail.com]
On 6 February 2012 23:23, Lars Andersson l...@larsandersson.com
wrote:
[AXIS_3]
TYPE = LINEAR
Tried that, no appearent effect.
That is because there is very little effect.
I find this:
2012/2/5 Lars Andersson l...@larsandersson.com:
Thanks Gene,
change in [TRAJ] was the cure.
From your post:
[AXIS_3]
TYPE = ANGULAR
HOME = 0.0
MAX_VELOCITY = 30.0
MAX_ACCELERATION = 200.0
STEPGEN_MAXACCEL = 300.0
Not immediately obvious, why is MAX_VELOCITY used here, not
2012. gada 6. februāris 21:15 Lars Andersson l...@larsandersson.com rakstīja:
How can I make [AXIS_3] linear?
[AXIS_3]
TYPE = LINEAR
It just does not make sense to me to treat extruder as another axis,
whose velocity would determine the amount of extruded material,
because the machine is
2012/2/3 Peter C. Wallace p...@mesanet.com:
Is it possible that you have some binding or tracking issues? The 7I39L has
a current limit of 15A/phase If you exceed ths current, you will suddenly
have a drastic change in your tuning as you will lose the inherent damping
of a voltage mode drive.
2012/1/31 Peter C. Wallace p...@mesanet.com:
This can be mitigated by putting a common mode choke (Big
ferrite bead) over the three motor leads (DO NOT include the ground lead)
1) I wrapped each of 3 power wires for motor around a separate ferrite bead.
2) I connected machine frame to common
2012/2/2 andy pugh bodge...@gmail.com:
On 2 February 2012 15:09, Viesturs Lācis viesturs.la...@gmail.com wrote:
Could it be anything else, but the encoder problem?
It could be an unfortunate resonance between the mechanical frequency
of the machine frame and the servo loop. This might be why
2012/1/31 Tom Easterday tom-...@bgp.nu:
Do you have differential drivers for the encoders or are you running them
single ended?
Single ended.
I would put the encoder signals on an oscilloscope and see what they look
like to the controller.
Since I do not have oscilloscope, it seems like
2012/1/31 Peter C. Wallace p...@mesanet.com:
The three phase PWM is a fair noise source. Not just capacitively coupled
noise from the three motor wires but inductively coupled noise due to
current spikes from the 28V PWM driving into the motors winding/frame
capacitance. This can be mitigated
2012/1/29 Kirk Wallace kwall...@wallacecompany.com:
Maybe I'm too picky, but WT_ may be considered offensive to some.
I sincerely apologize, if anyone felt it inappropriate!
Viesturs
--
Try before you buy = See our
2012/1/30 Peter C. Wallace p...@mesanet.com:
Before you change encoders, and noting that others have used the CUI/AMT
encoders with success, can you try a little experiment to make sure this is
not a noise -- losing count/commutation issue?
Thank You for the explanation! I really appreciate
2012/1/30 Peter C. Wallace p...@mesanet.com:
I am suggesting this test because if there is a noise problem, different
encoders may not help.
Of course, I totally agree, but I just did not see a reason for noise by now.
A possible noise source is the PWM signals. This can
couple into the
Peter, just as the name of threads says, I am trying to tune servo
motors, not steppers :)
I just checked - the supply voltage is 27,9 VDC, because 7i39 drives
have 28 VDC limit.
Ohh, and there is update:
The motor that yesterday worked fine at 4000 mm/min, today is not
working fine at that speed
2012/1/29 Spiderdab 77...@tiscali.it:
Hallo Viesturs, i don't remember who suggested, but i've read, with
those encoders, it's better to glue them to the rotating axle, because
they can slip at high speeds and during fast accelerations.
Thanks! I already did that this morning. Did not help...
2012/1/29 andy pugh bodge...@gmail.com:
On 29 January 2012 15:10, Viesturs Lācis viesturs.la...@gmail.com wrote:
I am now reading a thread, started by Jon Elson in June 2011 on
developers' list about these encoders. It turns out that they have
acceleration lag, so overall conclusion - do
2012/1/29 Peter Blodow p.blo...@dreki.de:
Viesturs,
if your laser seems too bulky - have you tried transporting the beam to
the work head via optic fibres?
The laser itself is less than 100g, so that is not the problem.
The machine itself has heavy construction as its primary task is wood
2012/1/28 andy pugh bodge...@gmail.com:
mux2 doesn't work with boolean data, unfortunately.
I do not know, what is boolean, but You are right - it did not want to
work, because limit/homing switches are bit pins, mux2 inputs and
output are float.
So I created mux2bit component, where I fixed
2012/1/28 Peter C. Wallace p...@mesanet.com:
I tried 3 times switching back and forth - with PID disconected and
BLDC value set to 0,95 motor does not move.
Thats very strange, the motor should run at full speed with a fixed bldc drive
value. Can you post your hal file somewhere (like
2012. gada 28. janvāris 18:14 noel noel.ro...@comcast.net rakstīja:
All interested in Servo Tuning.
Have a look at:
http://support.motioneng.com/Downloads-Notes/Tuning/default.htm
In the link from Noel I find that all three (well, the last maybe not
that much) PID tuning methods:
2012/1/28 Peter C. Wallace p...@mesanet.com:
Sounds like your commutation is wrong, no amount of tuning will help this
(wrong Hall order if you are using Halls wron paratmeyets if you are using q
mode etc etc)
Any tips on troubleshooting?
Viesturs
2012/1/28 Peter C. Wallace p...@mesanet.com:
If it feels coggy or snaps to other null (no force) positions, commutation is
not working (in h mode this likely means the Halls are not
connected/notconnected right or the hall mode is wrong
Is bldc.n.pattern meant with hall mode?
Viesturs
2012/1/28 Peter C. Wallace p...@mesanet.com:
You could also verify that the Hall signals connected to
the BLDC component are identical for the working and non working
axis (with HALMeter) as you slowly rotate the motor shaft (with 0 P)
I will just switch off motor power, Hall and encoder
2012/1/28 Viesturs Lācis viesturs.la...@gmail.com:
2012/1/28 Peter C. Wallace p...@mesanet.com:
You could also verify that the Hall signals connected to
the BLDC component are identical for the working and non working
axis (with HALMeter) as you slowly rotate the motor shaft (with 0 P)
I
Thank You very much!
I tested and can confirm - this is fixed.
I knew this had to be something stupid :)
Viesturs
2012/1/28 Frank Tkalcevic fr...@franksworkshop.com.au:
In AXIS_1 and AXIS_2 section, you have HOME defined twice. Once at 0, the
other at 10.0.
-Original Message-
From:
The best part was that I had it working for other joints, but not for joint 2.
I do not know, how many times I looked through those INI settings...
I know that I am extremely good at not seeing things in front of my
eyes. Especially when I need to find some tool that I used few minutes
earlier and
2012/1/28 Peter C. Wallace p...@mesanet.com:
Can you verify that in addition your raw encoder count the same way?
How do You mean - count the same way?
If I understand correctly, then I tested this:
If both motors turned clockwise
Then rawcounts increase in positive direction for _both_
2012/1/28 Peter C. Wallace p...@mesanet.com:
OK so commutation is ok, but somthing is funny here. You said it oscillated
even with a P of 1 and all else 0. Did it not oscillate with a P of 3?
what is the difference between the setup now and when it oscillates?
I will try to explain:
I am
: it actually has 5,4V between +5V and GND.
I think that voltages, when output is true are ok, but I think that
there is something wrong with the false state.
Am I missing something here?
Viesturs
2012/1/27 Viesturs Lācis viesturs.la...@gmail.com:
Hello!
In my attempts to understand, why I
Hello, folks!
I would appreciate some advice on servo tuning.
I have Keling Nema23 BLDC servo motors attached to Mesa 7i39.
And also zero experience with this :)
The way I am doing the tuning is:
1) start Emc, hit F1 and F2;
2) open Machine - Calibration;
3) change P value, for example, from 1
2012/1/27 Peter C. Wallace p...@mesanet.com:
On Fri, 27 Jan 2012, Viesturs L?cis wrote:
Date: Fri, 27 Jan 2012 11:45:30 +0200
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 08:10, Viesturs Lācis viesturs.la...@gmail.com wrote:
When output is false:
There are 3,46V between 5i23 pin and GND.
There are 1,68V between 5i23 pin and +5V.
When output is true:
There are 0.6V between 5i23 pin and GND
2012/1/27 Peter C. Wallace p...@mesanet.com:
I have been playing only with P parameter so far, following this guideline:
1) increase P up to the moment, when motor becomes unstable;
2) add I to make it stable;
3) add D to make the loop stiffer;
This is wrong, you add D to make it more
2012/1/26 Kirk Wallace kwall...@wallacecompany.com:
On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lācis wrote:
An off-the-shelf solid state relay might do the job too.
The relay was my first idea, but it turned out pretty quickly that
there are no such relays that could be driven directly
2012/1/27 Peter Blodow p.blo...@dreki.de:
Viesturs,
it seems to me that your laser diode is just acting as a normal LED,
not as a laser. This state is only achieved at a very distinct point up
on top of the voltage/current curve. The laser diode supply electronics
must take care of this which
2012/1/27 gene heskett ghesk...@wdtv.com:
Is there perchance an adjustment potentiometer? The LM317T is a linear
regulator device and could be made adjustable so as to compensate for the
wiring and switching loss in your controller.
Nope, I see 2 resistors in series for the middle leg.
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com wrote:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
2012/1/27 gene heskett ghesk...@wdtv.com:
That depends. Can, if you just short your device, burn wood? If not, or
only very much slower than you expected, then the wire is too small.
I could. Now it seems that my diy stopped working again - laser
receives ~3V DC regardless of the state of
2012/1/27 gene heskett ghesk...@wdtv.com:
On Friday, January 27, 2012 01:53:39 PM Viesturs Lācis did opine:
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com
wrote:
For those following this thread, just a reminder of what I think
Hello again!
I tried searching my mailbox with more than 2 years of this mailing
list in it for some servo tuning for noobs (actual keywords used
were servo tuning), but found only 1 viable thread, which contained
this link;
http://www.newport.com/servicesupport/Tutorials/default.aspx?id=152
My
2012/1/27 Peter C. Wallace p...@mesanet.com:
On Fri, 27 Jan 2012, Viesturs L?cis wrote:
Date: Fri, 27 Jan 2012 21:49:18 +0200
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller
2012/1/27 Peter C. Wallace p...@mesanet.com:
On Fri, 27 Jan 2012, Viesturs L?cis wrote:
Date: Fri, 27 Jan 2012 21:58:27 +0200
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 19:54, Peter C. Wallace p...@mesanet.com wrote:
What BLDC mode are you using?
...
If not you may somehow have lost encoder counts, this should be checked
Try mode h and comment-out the rawcounts lines, that ought to make
it stick
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 20:18, Viesturs Lācis viesturs.la...@gmail.com wrote:
Yes, I hit F2 to stop it (sometimes it stops for itself within a
second or two) after I release jogging button and then after enabling
motion with F2 motor stands still and I can
2012/1/27 Peter C. Wallace p...@mesanet.com:
This is not likely a tuning problem...
Sounds encouraging :)
More likely that you have either run out of headroom (what is the motor
voltage vs supply voltage?) or you have a commutation problem. Commutation
problems will happen if you have
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 20:37, Viesturs Lācis viesturs.la...@gmail.com wrote:
What's the PID output maxing out at?
OUTPUT_SCALE = 166.667
OUTPUT_OFFSET = 0.0
MAX_OUTPUT = 166.667
I don't know what these numbers mean
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