Yes, I had a stepper system run backwards when pushed too hard. I believe
it was a combination of accel and start frequency being too aggressive.
However, the backwards motion was NOT smooth or at commanded speed- slow and
noisy is what I remember. Jeffrey did not report, though, that his
backwar
Stuart,
In your axis compensation plan, do you assume that the axes are perfectly
straight and not bowed? Such as table sag at the end of travels.
Glenn
-Original Message-
From: emc-users-boun...@lists.sourceforge.net
[mailto:emc-users-boun...@lists.sourceforge.net] On Behalf Of Stuart
Doug,
There are well-defined drafting standards such as ANSI Y14.5M-1994 used
mostly in the USA. No doubt CNC has changed the landscape; imported solid
models defining the part geometry (through the CAD to CAM to CNC pipeline)
and drawings used mostly as inspection tools. Still, a good machinist
Yup, Palo Alto.
Glenn
-Original Message-
From: emc-users-boun...@lists.sourceforge.net
[mailto:emc-users-boun...@lists.sourceforge.net] On Behalf Of Rafael Skodlar
Sent: Friday, April 03, 2009 12:33 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] EMC in South West UK
E
Hi Dave,
Here's one from Galil, a pretty trusted supplier of motion systems. Of
course, using one of these usually leads you to a motor the vendor
recommends, but you can look at the specs and then buy one similar from
anyone.
http://www.galilmc.com/learning/motorsizer.php
Glenn
-Original
Hi Kirk,
My reply is from a user's viewpoint, meaning as a purchaser of machined
parts. Mfg.com is simple to use and at no cost for consumer. I use it from
time to time to source simple parts that I want made cheaply. I think this
is a common use of mfg.com so there is a lot of price pressure o
Aaron,
If you look at what the commercial guys can do, you will see what the
ultimate ceiling is for us hobbyists. I know the CNC Router from Haas (very
high-end machine) can do 2000 in/min (850 mm/s) in fast slew mode. Of
course, it can't cut at that speed. Anyway, I like to consider how long
Luke,
Here are some links, mostly of CNC Router machines- many capable of
non-ferrous metal work. You say you want to do wood which I think moves you
away from CNC Milling machines because of limited working area in the
horizontal plane.
http://campbelldesigns.net/index.php
http://solsylva.com/
Mr Acosta,
I've had enough. Perhaps its from seeing the 'P' word time and time again
in the subject line: it's sophomoric, insulting and reflects badly on the
originator, you. Or perhaps it's your insistence on blaming others. There
is not a manufacturer in the world with perfect documentation
...snip...
>>Dave,
>>
>> I think I've go that software on my EMC machine right now.
>>I'd forgotten all about it. Wonder if it'll read AutoCAD dwg files?
>>Hmmm, may have to play around with it.
>>
>>Mark
>>
>I've gotten the impression that AutoCad will go after anyone who tries to
wr
Here's a website of similar vein which might have some pointers for you...
http://www.computersculpture.com/
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of l.collier
hyams
Sent: Wednesday, September 24, 2008 7:40 PM
To: emc-users@lists.sourceforg
Hi Ed,
I have used a high-flex ribbon cable to great success. Others have
mentioned flex circuits which are great but can cost you with tooling.
Digi-key should have it, or Google...
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ed
Sent: Wednes
Aram,
>From your numbers it could take over a month to traverse the entire table
and perhaps four days to grind a single end mill. Does this sound excessive
to you?
On anther thread, you say accuracy is not as important as speed. Do you
mean smoothness of travel is more important than accuracy?
Aram,
What is the total travel distance of the grinding table?
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Thursday, May 22, 2008 6:59 PM
To: Enhanced Machine Controller (EMC)
Cc: emc-users@lists.sourceforge.net
Subject:
-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jon Elson
Sent: Wednesday, May 21, 2008 9:51 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Thread Milling
Glenn R. Edwards wrote:
>
> Other issues with thread milling: 1)The thread mill tool will not
Phil brings up an interesting point. Since the thread helix is determined
by motion of the z-axis and the thread form is determined by the spinning of
the tool (which is not coordinated with any other motion), there is a real
possibility that the resulting thread will not be perfectly formed. The
Focusing on possible mechanical sources: A Z-axis not capable of lifting the
spindle at max slew, but sized well enough to drive the spindle down, would
behave in this manner.
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff Epler
Sent: Saturda
Jon,
Are you implying that you manually, or otherwise, get the table to within
one encoder revolution of home and then do a homing sequence with EMC?
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jon Elson
Sent: Wednesday, March 26, 2008 10:51 AM
And,
Don't forget screw pitch, or lead. Pitch is also a big determinate of screw
efficiency.
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of John Kasunich
Sent: Sunday, March 16, 2008 7:57 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc
Thanks Eric,
That did the trick. And my apologies to the group for posting the same
question twice. I got nervous first thing in the morning when I did not see
my post from the night before.
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eric H.
Hi all,
Awhile back, EMC2 v2.1.1, I was successful in commanding EMC2 from a
terminal window using commands such as 'telnet localhost 5007' and
'axis-remote'. 'Telnet' opens a variety of commands to EMC2 (through
emcrsh) and 'axis-remote' allows shutdown (and a just few others). Now,
with v2.2.
Hi all,
Awhile back, EMC2 v2.1.1, I was successful in commanding EMC2 from a
terminal window using commands such as 'telnet localhost 5007' and
'axis-remote'. 'Telnet' opens a variety of commands to EMC2 (through
emcrsh) and 'axis-remote' allows shutdown (and a just few others). Now,
with v2.2.
Hi Marcin, et al:
I have two laptops running Linux and EMC2. One is a Dell 5000e and the
other a Dell M50. Both were high-end laptops at the time of purchase, both
have standard parports and both are running strong today (the 5000e is eight
years old). I am not a Dell junkie; my latest laptop
I have used the Oriental stepper drivers and they too morph to full-stepping
above a certain speed (and that speed threshold is not very high, either).
I would guess they all do this as maintaining micro-steps at high shaft
speed is pretty hard.
Glenn
-Original Message-
From: [EMAIL PROTE
Thanks Chris.
The G0 answer makes sense.
I am running EMC 2.1.1
I'll post the INI file as soon as I get it off the machine.
Best regards,
-- --
Glenn
On Thu, Mar 01, 2007 at 04:04:16PM -0800, Glenn R. Edwards wrote:
>
> I have noticed that when I do a fast-move command with all
I am running a four-axis mini-type mill with a xylotec board and stepper
motors throughout. Everything runs fine (pretty much) except for the
4th axis which is an angular axis. All the linear axes have the same
settings in the INI file and are mechanically the same.
I have noticed that when I
I am interested in getting manual tool change to work and I have
followed the below instructions. When I issue an M6 T1, the machine
does not move the 4th axis (angular: C) to the position set in the ini
file: TOOL_CHANGE_POSITION = 4 5 10 90. Any suggestions? Thanks!
Best regards,
-- --
Glenn
Thanks Eric.
For some reason I had overlooked 'program_status'. That about wraps up
my interface requirements with EMC2.
A follow-on question, but I know is off-track, is the Python
programming. It looks as though I will be running multiple processes
and I am a bit overwhelmed by the prospect o
While EMC is processing a file, how do I get its status. I am looking
for Busy, Done, etc. EMCRSH and AXIS-REMOTE do not seem to have any
appropriate commands, unless I am overlooking something.
Best regards,
-- --
Glenn
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTEC
support, do
have any recommendations?
Best regards,
-- --
Glenn R. Edwards
Glenn Edwards Engineering
760 Seale Ave.
Palo Alto, CA 94303
650.327.9009 voice and fax
650.269.2860 mobile
mailto: [EMAIL PROTECTED]
The information in this email and any attachments are confidential. If
you are not the
Thanks Eric!
This helped a lot. I upgraded to EMC2.1 (non-trivial because I had
modified .ini and .hal files, but not too bad) and was able to get a
local telnet session going very quickly. But, I am having trouble with
the 'set open path/filename' command. It just does not seem to work,
though
Fax: (203)426-9138
http://www.MarkKenny.com <http://www.markkenny.com/>
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Glenn R.
Edwards
Sent: Friday, December 29, 2006 1:34 PM
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] Command-line
Dear fellow EMC users and developers,
Several months ago I asked a question about remote control of EMC. I
received many excellent responses - thank you all.
As the system architecture progresses, it has become clear (or clearer)
that what I need is the ability run EMC2 from within a Pytho
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