On Thu, 2007-12-06 at 23:01 -0500, xtra209 wrote:
I checked out some treadmill motors rescued from defunct treadmills and
discovered they are really not reversible. Mine will run in both
directions but one direction the armature arcs more than the other
direction. A closer investigation of
On Thu, 2007-12-06 at 12:09 -0800, Kirk Wallace wrote:
(Dooh, fixed title spelling)
On Thu, 2007-12-06 at 11:43 -0800, Kirk Wallace wrote:
I got the first pass on my Bridgeport X axis working and I am having
trouble with tuning. I am using a brushed DC motor with a 3:1 belt ratio
between
On Friday 07 December 2007, Tony Bussan wrote:
I cruised some of the Honeywell sensor pages and the Digikey catalog
page with the 1GP4001 on it. I had studied the previous Digikey page
because I was interested in the Honeywell 103SR13A-1 which are installed
on my Hardinge lathe. I am guessing
On Friday 07 December 2007, Gene Heskett wrote:
On Friday 07 December 2007, David Winter wrote:
Dear All,
By my calculations a 50 tooth gear at 3000 rpm gives a
2500 Hz signal, not 150 kHz.
David Winter.
Ahh, I think your
On Friday 07 December 2007, David Winter wrote:
Dear All,
By my calculations a 50 tooth gear at 3000 rpm gives a
2500 Hz signal, not 150 kHz.
David Winter.
Ahh, I think your calculator is broken David. According to kcalc,
Gentlemen,
Given:
5 different machines with EMC controls - 3 each 5 axis and 2 each 3 axis
4 different machine configurations - each of the 5 axis mills
are a different configuration
the
2 three axis mills are
Stuart Stevenson wrote:
Gentlemen,
Given:
5 different machines with EMC controls - 3 each 5 axis and 2 each 3
axis
4 different machine configurations - each of the 5 axis mills
are a different configuration
On Friday 07 December 2007, John Kasunich wrote:
Gene Heskett wrote:
I possibly didn't word that as precisely as I could. But at zero speed,
there truly is no signal to condition. Only if its moving can it generate
a signal.
Not true. Hall and MR sensors are DC sensitive devices. From 1984
Dear All,
By my calculations a 50 tooth gear at 3000 rpm gives a
2500 Hz signal, not 150 kHz.
David Winter.
-
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I don't know if you're set up to do this but you could use your shaft
encoder for feedback to a drive and your linear encoder for feedback to
EMC. That's what my Anilam controls do (one has been replaced with EMC,
works great) but they use tach feedback to the drives. The drives are
tuned to
Gene Heskett wrote:
I possibly didn't word that as precisely as I could. But at zero speed, there
truly is no signal to condition. Only if its moving can it generate a
signal.
Not true. Hall and MR sensors are DC sensitive devices. From 1984 to
1991 I worked at a company that makes MR
The axis substitution hurts my head, and I'm not even going to think
about it.
Axis substitution is no more than mass substitution of the axis
label to allow the control to use the program. The rotary axis values
should be the same regardless of the machine configuration. It may be
Kirk Wallace wrote:
On Thu, 2007-12-06 at 14:08 -0800, Peter C. Wallace wrote:
What is your deadzone?
... snip
If you mean deadband, I have it set to 1e-05. I set it to 1e-04 and
1e-06 which had no effect.
You need to set it to 3E-03 to get it above your stated
backlash. (You can try
Gene Heskett wrote:
I possibly didn't word that as precisely as I could. But at zero speed, there
truly is no signal to condition. Only if its moving can it generate a
signal.
A Hall effect device is sensitive to a stationary magnetic
field, unlike a coil of wire, which requires a moving
Kirk Wallace wrote:
I jury rigged an encoder to the motor and it tunes fairly well now, but
now the travel end points are affected by the backlash. I am looking at
getting the MicroKinetics ballscrew kit.
http://www.microkinetics.com/convkit.htm (at the bottom of the page)
which appears
Hi all,
I'm surprised that saving a series of manual moves (for later
playback) is apparently not very high on anybody else's wish list of
EMC2 additions...Anyway, it's something I would like to be able to do.
For what its worth!
(I'm running 2.0.5, by the way. I thought that hilighting and
Does the remote need a complete EMC install? I copied just the bin,
opps, I guess its a python file, axis to my Fedora PC and it complained
about not finding a Tkinter module. I can setup another EMC machine but
I thought it might be easy to only set up AXIS on an existing PC.
On Fri, 2007-12-07
This is what came to mind first, but I wonder if some processes could be
off-loaded to free up resources for control type stuff? VNC and remote X
sessions burn up allot of processing and network bandwidth don't they?
On Fri, 2007-12-07 at 15:20 -0700, Andrew Ayre wrote:
Wouldn't it be easier to
Stuart-
I think what we will eventually arrive at is a Description Language for
tools. The type of DL that most people on this list will probably be
familiar with is an HDL-hardware description language-used to describe
programmable logic.
DDL was developed to address similar needs in the
I would like to run AXIS remotely. I wrote some notes:
http://www.wallacecompany.com/machine_shop/EMC2/remote_notes.html
to help me keep things sorted out. I am going to give it a try, but if
anyone has comments or corrections, please let me know. Thanks.
--
Kirk Wallace (California, USA
On Fri, 2007-12-07 at 12:46 -0600, Jon Elson wrote:
Kirk Wallace wrote:
I jury rigged an encoder to the motor and it tunes fairly well now, but
now the travel end points are affected by the backlash. I am looking at
getting the MicroKinetics ballscrew kit.
On Friday 07 December 2007, Alex Joni wrote:
Hi Kirk,
it looks pretty ok from a first glimpse. Some outdated stuff in there, but
you'll be able to sort it out.
There are 2 nml's included with emc2 which help you set up remote GUI
functionality.
There is one issue I want to raise here: opening
Gentlemen,
I have not thought this through to be able to spec exactly what I
want. I have never worked in a shop with a master tool list. I used to
do some contract NC programming for shops with a master tool list. The
contract programmer is not given the 'easy' parts to do, (ie: the
parts the
On Friday 07 December 2007, Kirk Wallace wrote:
Does the remote need a complete EMC install? I copied just the bin,
opps, I guess its a python file, axis to my Fedora PC and it complained
about not finding a Tkinter module. I can setup another EMC machine but
I thought it might be easy to only set
I don't know. I think that the protocol used across the network is
fairly lightweight. I would think that you would have to re-do the
realtime latency test while using the remote desktop to find out for sure.
Andy
Kirk Wallace wrote:
This is what came to mind first, but I wonder if some
Hi Kirk,
it looks pretty ok from a first glimpse. Some outdated stuff in there, but
you'll be able to sort it out.
There are 2 nml's included with emc2 which help you set up remote GUI
functionality.
There is one issue I want to raise here: opening ngc files.
For this to work both the GUI and
Wouldn't it be easier to use remote desktop type functionality? For
example VNC?
If the PC that connects to the CNC machine is headless I think there is
vnc4server, which only runs a desktop when you connect via VNC. Not 100%
sure and I haven't tried it.
Andy
Kirk Wallace wrote:
I would like
On Friday 07 December 2007, Patrick Ferrick wrote:
Hi all,
I'm surprised that saving a series of manual moves (for later
playback) is apparently not very high on anybody else's wish list of
EMC2 additions...Anyway, it's something I would like to be able to do.
For what its worth!
(I'm running
On Fri, Dec 07, 2007 at 01:55:22PM -0500, Patrick Ferrick wrote:
Hi all,
I'm surprised that saving a series of manual moves (for later
playback) is apparently not very high on anybody else's wish list of
EMC2 additions...Anyway, it's something I would like to be able to do.
For what its
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