This Bandit stepper controller was working about 5 years ago when it
stopped doing any circular interpolation. The machine it was
controlling had 1.5 amp steppers, so it was easy to replace it with GRBL
and the CNC shield.
The power supply (if I remember correctly) was about 75 volts, and
I believe that R arcs that are 90 degrees or less are going to come out
very close to the IJK versions, but if you want a full circle, it's
better to break it up into 4 90 degree arcs. I don't know just where
radius arcs start to diverge from IJK arcs, but I would guess that 180
and 360
I have found that the "Magic Pixie Dust" for a damp shop comes in a
spray can called Caig deoxit. The trick is pairing a contact cleaning
solution with an appropriate oil that seals the contacts so that oxygen
can't get into the connection.
A church building is a great place for humidity
One option would be to generate one big G-code file, with the
appropriate M-CODE to break it up, and an operator's comment to let you
know which section is coming up next.
1. The operator would get a message like:
(Prepare to carve Billy G's name)
2. Put the part in the vise
I recommend the techniques in this web page:
https://www.grc.com/haystack.htm
I enjoy pointing out the smarts of Steve Gibson.
I've set up an Epson ET-2650 printer as a WIFI access point, and since
the interface for entering the password is so awful, I created a
password specifically
The point of 300,000 steps per second is in the difference between
the fastest speed you want your motors turning at and the second fastest
speed you want your motors turning at. If you want to be able to run at
10,000 steps per second, you can't use a a system that has a maximum
step rate
On 7/23/20 2:15 PM, Chris Albertson wrote:
What is really needed is for someone to write firmware for the common
STM32F103 "Blue Pill". These have the hardware to do things like step gen
and quadrature decode at MHz speeds and talk to the PC over SPI I2C or USB
and cost under $3 from 100
While this is late in this thread, and I don't know if this has been
covered, but hackaday had an article on a guy who has a program to
generate cycloidal gears. They may not have as great gear ratios as a
harmonic drive, but might help someone looking over this thread, so here
goes:
I recently discovered geared stepper motors.
http://www.zyltech.com/nema-17-stepper-motor-geared-planetary-gearbox-1-7-a-3-1-nm-435-ozin/
I've been happy with zyltech in the past. I bought one of these for
evluation, but the specs seem to be great for CNC. Low enough current to
work with a
I second the motion to try contact cleaner. I use Caig DeoxIT that i
bought from Parts Express. It's a little expansive, but worth every
penny! At my church we had a CD/DVD duplicator that started acting up.
I pulled apart all the cable connections and sprayed them and put them
back on a
On 5/29/20 8:44 PM, Gene Heskett wrote:
In this case, openscad gives me the tools I want right now, and I could
even do a set of gears for stage 2 of the reduction since that spacing
is almost too close for a belt coupling. So by using the correct tooth
profiles it could make a very usefull
Sent from my Kyocera Rise
Gregg Eshelman g_ala...@yahoo.com wrote:
--- On Sun, 5/12/13, Rafael Skodlar ra...@linwin.com wrote:
It can be used as one, certainly, but then so can
Postscript.
By that logic, we would program web sites code in assembler.
But then
millions use inches and
That nifty utility sounds like an early, buggy, limited version of SED, the
stream editor.
I am a big fan of SED. Available for Linux, Windoze, and probably for OSX.
The learning curve is steep, but the power is amazing, and as far as I know,
the file of swap rules can get bigger than you
I believe I have seen them used to advance the roller on an electric
typewriter. When the current is off, there's no cogging like hybrid steppers
have. That makes adjust paper height by hand seem normal for a typewriter.
Sent from my Kyocera Rise
Roland Jollivet roland.jolli...@gmail.com wrote:
On 04/10/2013 07:18 AM, Javier Ros wrote:
Is apparently a stepper motor that is controlled as a brushless.
Essentially a stepper is a brushless. This needs a encoder, probably one
with a index pulse correctly positioned,
so that the electronics can compute the switching accurately.
This
Getting that alu tape drum off the shaft so you can fit something else is a
problem, they are pressed on, interference fitted.
I think I'd try a nutcracker.
Sent from my Kyocera Rise
Gene Heskett ghesk...@wdtv.com wrote:
On Thursday 04 April 2013 09:23:01 Gregg Eshelman did opine:
--- On
On 03/26/2013 01:21 AM, Gregg Eshelman wrote:
I am not sure you will see good acceleration. In fact, it is
always
going to be less than 1g. This is because for any faster
acceleration
the strings go slack as the weighs don't fall fast enough.
No need to go anywhere near that fast because an
On 03/23/2013 09:51 PM, Gene Heskett wrote:
All of these seem to need way more memory to work without an OOM tummy
ache, on either the mill with 2G dram, or on this box with 4G dram. PyCAM
just took an OOM exit after running this machine 850 megs into swap, so
this box is crawling on its
On 02/18/2013 12:13 PM, John Kasunich wrote:
If you are trimming your posts, you are also trimming the ads.
It took me about three seconds to click my mouse near the top
of this message (after the part I wanted to keep), drag it
to the bottom, and hit the delete key.
I'm using Thunderbird
From a post on hackaday I got the impression OpenSCAD might be just what I
need to generate G-CODE, but I find more information on 3-D printing G-CODE
than routing.
Am I suppose to export my project as a DXF, and then use DXF2GCODE, or is
there another way usually used to get G-CODE for a
If it's worth the hassle to. Reshape the spring, I can picture wrapping it
around a ceramic rod spiraling. Then using 3 propane torches. Attached to point
toward the assembly from 120 degrees apart gradually move them from one end of
the assembly to the other, slowly enough to get the metal
God Bless us, everyone!
And Merry Christmas to y'all.
Carl
--
LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial
Remotely access PCs and mobile devices and provide instant support
Improve your
On 12/15/2012 02:14 PM, andy pugh wrote:
when I want to build (or also keep) up a business I have to be reliable
for the customers and grant continuity for my products.
There is an argument that because_any_ programmer can
support/fix/modify LinuxCNC that it is more supportable in the long
On 12/15/2012 04:23 PM, Ben Potter wrote:
I've got a machine with much the same limit (1200 line) - which is somewhat
frustrating at times. I couldn't figure out a way to (easily and cheaply)
convert it over to linuxcnc without replacing the existing drives and
resolvers - which made it a
On 12/14/2012 03:12 AM, Gene Heskett wrote:
And I screwed that royally, its 185mv/A, not .185mv. Way too late. Or too
early...
That's ok, it's late here, and I misread .185mV to be 185mV! 8-)
--
LogMeIn Rescue:
On 12/13/2012 02:29 PM, Viesturs Lācis wrote:
But my initial question was about documentation so that I could give
the guy something to read and then he would ask me questions rather
than I try to figure out, what is the best way to start explaining
things.
I was surprised that most babelfish
On 12/11/2012 11:35 AM, Ralph Stirling wrote:
There have been entire machines
built of concrete so you might just look into rebuilding your mill.
(https://www.google.com/search?q=concrete+lathe)
Why do lathes have all the fun? Where are the concrete 3 axis machines?
On 11/26/2012 03:13 PM, Ralph Stirling wrote:
Get a real power supply with a transformer, rectifier,
and capacitor.
If you have switching stepper drivers that have *a capacitor across the
DC input*, you may be able to use the power supply from an old 20 to 50
watt per channel stereo amplifier.
On 10/26/2012 12:36 PM, Charles Steinkuehler wrote:
The catch will be to see what the latency numbers look like (I don't
have hardware in-hand to play with yet, I'm waiting to see if my TI
rep will get me one of these:http://www.ti.com/tool/tmdssk3358#3 or
if I'll have to buy it myself).
It
On 10/26/2012 02:47 PM, John Stewart wrote:
OpenCL on Linux is ok. At least it was last time I tried it. I started a blog
on some stuff I did OpenCL wise:
http://gpucomputes.blogspot.com
(It was set up not as a technical treatise, but for students) (oh, and I ran
the code on OSX for the
On 10/23/2012 11:54 PM, Sebastian Kuzminsky wrote:
Cool Charles!
I'd love to see your config added to the sample configs we distribute
Ditto to that! I'd like to see this become commonplace!
--
Everyone hates
On 10/20/2012 04:18 PM, Jon Elson wrote:
If I select the line with the G01 move,
and do run from line, it performs that move, but never executes the
subroutine.
It sits there in some in-between state, forever.
I'm just throwing something in here with very limited knowledge of
what's going
On 10/18/2012 02:30 PM, Dave wrote:
A patent is only good if you can enforce it. If not, it is worthless.
Not necessarily. If something like this gets in the way of honest
people, but is easily circumvented by the crafty, then it has strong
NEGATIVE worth.
On 10/18/2012 02:53 PM, Mark Cason wrote:
Yes, and you will have to be connected to the internet, or it won't
work.:-)
And this FEATURE assures that no one can have a trade secret, because
you are compelled by law to share your designs.
Brainstorming, but not coming up with what you asked for. I still think
one of these ideas might help, so here they are.
I pictured using a key-hole tool to make the hole in the top surface
of the wood about 5.8mm for a 6mm ball, then 6mm from about .2mm below
the surface down to 3.2mm
I spotted on slashdot an item about Samsung creating a new file
system for Linux 'F2FS'. It is specifically designed to work well with
solid state flash disks such as SSD, eMMC, and SD cards. I know some
of you have used CF for your storage systems. Hopefully in the near
future, instead
On 09/27/2012 09:41 AM, Dave Caroline wrote:
I would work better if you switch it on!
There is someone at work who has done it to me so often that the first
thing I say to her is Did you plug it in? Did you turn it on?
One day she came to me and said something like The computer's stuck
in
On 09/27/2012 11:19 AM, Dave wrote:
The first question you always ask, is there a power on light on the
front of the controller, and what color is it? That way they look to
make sure it is actually on. The power on indicator lights were always
green, but they don't know that.
What a
On 09/23/2012 03:57 PM, andy pugh wrote:
Indeed, using the actual Hall sensors is much better, I was just
saying that if the motor does not provide the signals then it is not
necessarily a complete show-stopper.
Remembering an article in Machine Design about the CUI AMT303
commutating
On 09/15/2012 01:26 AM, Przemek Klosowski wrote:
If there will be a well-designed and/or inexpensive hardware with this
chipset, it'll likely get reverse-engineered.
Years ago I worked on an in-circuit test for a device called a bus
monitor chip. It was supposed to be able to monitor memory
On 09/15/2012 06:17 AM, andy pugh wrote:
That is what CSV is, comma separated variables. The special
character is a comma.
It is also a really bad choice, as a large proportion of the world use
the comma as a decimals separator.
I used to think it meant comma separated values, and I think that
On 09/14/2012 03:53 PM, Stephen Dubovsky wrote:
Python can make database calls. Just write the lengths to a database.
Use database tools to do all the analysis like histogramming, etc.
Thats what they are very good at.
Or, if the end user is handy with a spreadsheet, you could write it out
On 08/26/2012 07:29 PM, jeremy youngs wrote:
I am thinking about lining my ways with this product any
thoughts?
Tormach has a nice whitepaper about the design of their PCNC1100 that
has me salivating to get one for myself. In it they have this quote:
There is a problem with it, however.
On 08/15/2012 09:26 PM, a...@conceptmachinery.com wrote:
I think problem again here.
I am not talking about UBUNTU.
I am talking about EMC2 2.2.5 and problem in DELETE file -program name-
from icon on EMC2 where one load new program.
When load file/program into EMC2 --EMC2 2.2.5 in my
On 08/11/2012 09:09 AM, jeremy youngs wrote:
I also
being the owner and moderator If we wanted to set it up here would
give all the files freely to the organization.
I don't intend this in a mean way, but if you agree to a license, you
are bound by that license. There was a woman who
On 08/08/2012 01:50 AM, Peter Blodow wrote:
The only problem is that speed is very limited to about 3.5 kHz max.
which keeps the machine slow. So, after about 15 years of service, I am
looking for a more modern board with a little more power (esp. in
voltage). Thanks for the hints.
When
On 08/07/2012 08:42 AM, ceen...@in-front.com wrote:
The majority of boards I run are double sided so all SMT processes are
performed twice. This is one of the reasons I would like a paste printer
because the manual stencil printer requires a lot of adjusting and fixturing
changes when I
On 08/07/2012 05:01 PM, Alexander Grill wrote:
Unfortunately I don't have a Step-Direction based card installed (I plan
to build a new one based on TB6560 or A3977, but that is rather a long
term goal). In the mean time, i want to use my old card (EMIS SMC-800),
which cannot be driven directly
On 08/06/2012 09:49 PM, Jon Elson wrote:
I make my own stencils for these. It is kind of a pain, but I'm CHEAP!
How about the cheapest CNC to build, an XY plotter like this:
https://www.youtube.com/watch?v=WyLPpGdfR7s
but with the laser from an old DVD burner for the pen. You could
produce
On 08/04/2012 07:11 PM, Ron Ginger wrote:
Mach4, as it will ship, has only been underway since the first of this
year, and was demoed at the CNC workshop in June. It is intended the
first version, Mach-lite, will ship in September. I am working on the
Newfangled wizards for it and they are
I was looking up something and came across a thread from a gent in
Australia who was wondering if he could buy .9 degree steppers for his
RepRap and get them to work, and one guy commented on stepper torque
with a half truth for the situation. Apparently the norm for RepRap is
200 steps
On 07/17/2012 12:36 PM, Jon Elson wrote:
I don't use NFS, just sftp, and it works fine and is pretty easy to move
files around between
machines.
Thanks for this tip, Jon. I have 3 machines here. The one (Compaq
with Athlon 64 and obscure A8N-LA motherboard) that has my wife's and my
On 07/24/2012 07:08 AM, Kent A. Reed wrote:
Any thoughts?
From what I've seen looking into USB 2.0 device programming, the
transfers are too quick for most (maybe all) microcontrollers to keep up
with in software, so you are generally tied to DMA transfers on the
microcontroller side. FTDI
On 07/23/2012 03:05 AM, Jeshua Lacock wrote:
So I just got a response from my ballscrew vendor. They can supply a 40mm
diameter with 40mm pitch (3048 mm long) for a reasonable cost. Less than $1k
including shipping and machining.
Looks like that could safely rotate at 977 RPM which would
On 07/23/2012 10:45 AM, Stuart Stevenson wrote:
Maybe a debug gui with message tags at various places in the software to
display the control flow and where the current tag is stopped.
Are you thinking of a program to comb through the log files looking
for error messages that we know how to
On 07/10/2012 05:57 PM, Peter C. Wallace wrote:
If there is demand, it is probably not a difficult one to write.
Like a number of other components, the problem is having hardware to
test with, or someone to do the testing vicariously.
Pretty sure the SSI interface works, but the BISS one
On 06/14/2012 10:33 PM, Jon Elson wrote:
Thats inch-POUNDS! 16 times inch-Ounces.
56 In-Lb is 896 Oz-In, so you have made a mistake. Also, steppers,
ESPECIALLY
Thanks. I don't have an intuitive feeling for N-m measures, so for
quite a while I have been making this mistake in my head. I had
On 06/11/2012 11:56 PM, Jeshua Lacock wrote:
But that is also a 15V part IIRC. But that's ok - the only reason the
Makerbot uses a PC power supply is because they are dirt cheap and TUV
certified. You can use any supply you want. I use 15V supplies.
OK, that was my main concern. I just
I know there is an appeal for a controller that can do wifi and other
neat things, but just in case this could be the solution you didn't know
you needed:
http://www.megasquirt.info/
A few years back an open engine controller was designed. I think this
is the latest version of it. The
While I can see the need (sometimes) for a durable metal encoder
disc, and I have cut some out of .016 copper (was on hand, and never
got tested), I wonder how useful, or how durable laser printed
transparency film would be for many applications. Two of them glued
back to back with the
The eps file is vector graphics, it can generate as fine detail as
you need.
When I used GIMP to output to .JPG I got very good resolution, but I
had to ask for it.
Try this:
1. Right click on the .eps file.
2. Click on Open with.
3. Click on GIMP.
4. The dialog Import from
On 06/02/2012 04:27 PM, cogoman wrote:
The eps file is vector graphics, it can generate as fine detail as
you need.
One thing I forgot to mention, with this technique, your printer's
resolution is the limiting factor, and with modern printers, it's
usually not very limiting
you need.
On 06/02/2012 03:58 PM, gene heskett wrote:
Thanks cogoman. This would be useful if I had room for a 6 OD wheel, but
my limit in the space I have is about 2.7 in diameter.
%! Postscript utility for printing multiple encoder wheels
/inch {72 mul} def % #points/inch (don't
On 05/19/2012 06:06 AM, Erik Christiansen wrote:
It scares me that coordinate offsets could be cumulative. Coordinate
offsets (workspaces) should not nest, I believe. I have not read
anything in the doco to say that they do.
That doesn't scare me at all, as long as the documentation is
On 05/12/2012 10:15 AM, k...@gmail.com wrote:
There is a bit of talk on some machine shop forums, arguments perhaps, that
retrofitting a machine is a waste of time.
And that it's time and money well spent to just buy a good used
machine and move on with making money with it.
Any comments on
for section 2 Getting Started.
I have not yet gotten too far with CAD/CAM to generate gcode, but I
have a suggestion to run up the flagpole to see if anyone salutes. I
suggest we select 2 CAD/CAM solutions to include on the CD, with special
support in the wiki. One would allow complex
On 04/20/2012 06:20 PM, Peter C. Wallace wrote:
A dozen or so shorted I/O lines is unlikely to cause FPGA damage (ask
me how I know)
I can imagine... 5 years from now someone is looking at a LinuxCNC
configuration using a MESA card and wonders Why is he using stepper
outputs 4, 5 and 6 for
I am a bit behind due to trying to get my EMAIL machine upgraded to a
newer model I received as a hand me down. The on board video stymied
every distribution except puppy! I eventually was given an older PCI-X
video card that allowed me to install main stream distros, and now I've
pretty
From: Viesturs L?cis viesturs.la...@gmail.com Subject: Re: [Emc-users]
This will run in a little off-topic by me...
You can run heavy duty machines with steppers, but then the
performance will suffer - You will have to leave big safety margin in
terms of load to motors (either move slower or
Could you give me some idea of what the advantage is of using 2 and 3
stack steppers?
Perhaps I'm in over my head here, but I'll share what I think I
know. The tendency for 2 to 3 stack steppers is for the magnetic
circuit inside to get too long, and create high inductance for the
On 01/03/2012 07:26 AM, matthew venn wrote:
Hi all,
a few weeks back I asked about turning STL files from openscad to gcode for
my router. Pycam was suggested and I've been playing with that.
However the wiki is pretty bare, and the mailing list and archives are
pretty slim pickings too!
I
On 12/15/2011 05:35 AM, emc-users-requ...@lists.sourceforge.net wrote:
was thinking about this what if one was to attach a synchronus steppe as an
encoder one could under drive it ( incresed sensivity,and resolution), put
current limiting resistors inline (10 k ohm?) and opt isolate to
Seems like a zillion years ago, when I was young and dumb, I bought a used
Phillips PM3212 25MHz triggered sweep dual trace scope from a vendor at the
Trenton Computer Fair. I wasn't dumb enough for them though. They sold it
without scope leads, so I found some bare copper wire and took it
On 12/14/2011 06:59 PM, emc-users-requ...@lists.sourceforge.net wrote:
hello , bought a dell about 2 months ago, loaded with ubuntu 10.10? realized
that wont work with emc, so i downloaded the live cd (from a windows machine)
when i put the cd in the dell and try to open it it says it needs
On 10/07/2011 10:16 PM, emc-users-requ...@lists.sourceforge.net wrote:
SIG and TAC are attenuators for the velocity command input and the
tachometer input.
CLM is current limit. BAL is the zero offset. TC is most likely the
loop compensation
on either the torque loop or velocity loop.
I was
...@lists.sourceforge.net wrote:
Cogoman:
A quick Google search suggests JavE might suit.
It's just my two-cents worth, but I think you'd be better off just using
the drawing tool you like best and placing a png or pdf file of the
result in one of the file-drops used already by list members.
Regards,
Kent
From
On 10/05/2011 11:36 AM, emc-users-requ...@lists.sourceforge.net wrote:
The problem with the power-amp ideas is that that I don't see how that
would drive the motor in the reverse direction, I think an H-bridge is
needed. (unless we were to hold one terminal of the motor at 6V, and
drive the
On 10/02/2011 01:38 PM, emc-users-requ...@lists.sourceforge.net wrote:
After having more experience with getting my PWM to VFD input working,
it comes to my mind that what is behind the VFD input is an ADC, which I
think takes a snap shot (sample/hold) at a frequency. I seem to recall
one VFD
On 09/30/2011 07:52 PM, emc-users-requ...@lists.sourceforge.net wrote:
Is there any chance that I have to set something that is not 8? That
Keling's spreadsheet says that motor has 8 poles.
It took me a while to find this web page:
http://www.southernsoaringclub.org.za/a-BM-motors-3.html
I just looked at it briefly. Actually not too briefly, but if what I
need is in there (and it might be) it's going to take a bit longer to
find and understand it. The AVR code isn't an issue since I was hoping
to use one of the much faster ARM micro-controllers out there.
Thanks.
On
What is the sequence of messages sent and received to an FPGA parallel
port servo card at each servo interval? I looked on the wiki and
couldn't find this information. What all goes on when controlling 3
servos over the parallel port?
On 08/12/2011 02:10 PM, andy pugh wrote:
This is a simplification. Address auto-indexing and translation ram
(where contguous memory addresses link to non-contiguous registers)
confuse the matter.
Why are you asking?
This is a simplification. Address auto-indexing and translation ram
(where
On 08/11/2011 08:28 AM, Mark Wendt wrote:
I knew about the properties of the torque fall-off of steppers, and
that servos generally kept their torque at higher rpms, obviously much
better than steppers. i was just wondering why motors were listed with
power ratings rather than torque,
it. Then on the
right, password should say 'none'. Click on 'Change' to the right of none.
Then you can enter a new password, and check the box that says 'Don't ask for
password on logon'.
Grace to you in this matter,
cogoman
On 08/08/2011 08:14 AM, charles green wrote:
ubu8 and ubu10 + emc2
On 08/02/2011 03:06 AM, Erik Christiansen wrote:
Together, I'm sure we can make it do what you want. IIUC, that is to
start the xterm in a directory other than $HOME. (i.e. '.' is
/some/other/directory)
Thanks,
You gave a lot of options to try. I suspect oat least one will work well!
I'll
From: Erik Christiansen
But if the additional script is used, it can also open mutt in an xterm
in the top right corner,
Maybe you can solve a problem that I have been having. I have been
trying to get an icon on the desktop in Puppy Lucid 5.25 to open up an
xterminal with the default
to someone else that the mailbox may be getting too big. Now
I have a mailbox for volumes 30-39, volumes 40-49, etc under my main CNC
mailbox. I set up message filters like so:
if Subject contains Vol 7 move message to Volume 70-79 on cogoman.
I set up filters that would trash any EMAIL
I read in Machine Design, or some other tech mag in one of those device
forensics columns about a company that was getting their servo drives back from
just one company at a rate of 4 failures a month. The engineer sent to check
on it did some checking before he left and found that there was
It's not so much the 2.1 ohms, though that can be an indication of high
inductance. It's the 9mH per phase that slows you down. If you take a
quick look at the graphs in the following WIKI page:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Stepper_Motor_Speed_Limitations
they will give you
You guys amaze me! There must be at least 7 different solutions to
the problem here, and ultimately, you solved his problem with a solution
that may cost him nothing! And that tip about orienting the dial is
very valuable too!
I have been thinking about all the toys and routers and
In the past I have thought that it would be great to have a feature in
EMC2 like the C pre-processor, that would do some automatic replacements
to allow the original G-code to be more readable. It seems like two
threads here can collide, and the solution for the thread on
substituting A for E
This is only a band-aid approach, but it gives me a chance to plug the
Stream Editor. The stream editor sed when used with an edit file is
kind of like a super-colossal macro generator. It is VERY cryptic when
you first get started, but with just a little knowledge of how to use
it, it can
On 06/01/2011 07:36 PM, emc-users-requ...@lists.sourceforge.net wrote:
The resistor I did use when I was building the interface for my mills
spindle, because I read someplace that a dead short could result in field
demagnetization under the right conditions. There I used a 20 ohm 20 watt
On 04/08/2011 10:30 AM, emc-users-requ...@lists.sourceforge.net wrote:
Message: 3
Date: Fri, 8 Apr 2011 06:54:27 -0500
From: Igor Chudovichu...@gmail.com
Subject: Re: [Emc-users] OT made a new milling enclosure
To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
On 02/24/2011 01:35 PM, emc-users-requ...@lists.sourceforge.net wrote:
It would be nice if there was a way to interface CNC equipment via USB such
that the timing of actions was being scheduled in the controller rather than
by the host O/S.
That way it would not be necessary to run a specific
From: gene heskett ghesk...@wdtv.com Subject: Re: [Emc-users] My
first wiki page
snip
I must say also that since the complete step is now handled in one cycle of
the base thread, I haven't noticed my motors playing tunes as they change
speeds, it is MUCH less obvious, and that has opened up
From the previous posting of this I guess you can tell I get the list
in digest form! 8-)
From: gene heskett ghesk...@wdtv.com Subject: Re: [Emc-users] My
first wiki page
snip
I must say also that since the complete step is now handled in one cycle of
the base thread, I haven't noticed
Kent suggested I add some information about stepper motor speed
limitations to the wiki. I tend to never finish anything because it's
never good enough. This isn't good enough, but it's up there.
It's titled:
* Stepper Motor Speed Limitations
On 02/03/2011 02:49 PM, emc-users-requ...@lists.sourceforge.net wrote:
Les, I thought that friction is not at all proportional to speed?
It is a value that only depends on the direction (sign) of speed, not on the
value of speed.
Am I mistaken?
If I remember properly, Tormach goes over
Though it appears obvious that you aren't having this problem, since
on a lot of discussions on PID timing, people seem to overlook this, I
just want to mention this for the one guy listening who might be bitten
by this otherwise.
When you take a servo motor off a machine, you unload a
1 - 100 of 128 matches
Mail list logo
