On Wednesday 28 March 2007, Dean Hedin wrote:
My guess is that with that, you could
cut every groove the the checkering file will finish at 24 tpi if you
wanted to go that fine,
No Gene, can't do it. Lord knows I've tried.
Too much tear out occurs even with the tiniest of bits. The net result
I need to start cnc'ing metal.
Anders, how long (machine time) did it take to cut the mould in the first
picture?
Also, were there tool changes used, i.e., roughing, finishing?
We didn't have ER25-chucks/collets when we did that mould, so the whole
mould is run with one tool, a flat 6mm
On Wednesday 28 March 2007, Dale wrote:
Hi Dean, Gene,
This is coming from a Toolmaker and I also make guitars. If it were
metal I'd say yes all but the final finish could be done on the machine.
Knowing wood the way I do I have to say Dean is right about the tearout.
As a toolmaker and
At 10:35 AM 28/03/2007 -0400, you wrote:
over half an hour per pass though. MCS is selling a little air grinder
rated at 70k rpms, I wonder how that might work mounted on the side of
the head on my micromill for something like that? Has anyone here
attempted something along those lines?
I know that noise and the finish. On much bigger and more rigid machines
and even using bigger tools It's the same problem. Since you have
limitations with toolholders and the spindle itself, the deeper the
pocket gets the longer the tool/toolholder gets. The cutters themselves
flex enough by
I lost my hard drive yesterday, it had BDI EMC running on it. I
downloaded EMC2 Live and have it running on the computer. I have a LPT
card installed that I use because my factory port is noisy. I am
running stepper motors on a bridgeport, I have chosen the standard
stepper set up in inch mode
Thanks
Andy
Chris Radek wrote:
On Wed, Mar 28, 2007 at 12:59:17PM -0500, Andy Holcomb wrote:
Remind me again how to find the address of the lpt ports.
Where do I make this change of address?
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?NetMos
Okay, I have tried all of the values I get from the lspci command and
non of them work; but, the factory port at 378 does work.
the values I got were
dc00
d800
d400
d000
cc00
c800
From what I remember on emc1 I had to use d000
Andy
Chris Radek wrote:
On Wed, Mar 28, 2007 at 12:59:17PM
I am looking at taking another stab at using SPI with EMC. Originally, I
wanted to port the Rutex Windows driver and utilities to Linux. But for
now, I need to take baby steps towards that goal.
I think controlling a spindle VFD (0 to +10V) with a MAX5312 ADC on the
parallel port might be doable.
Kirk Wallace wrote:
I am looking at taking another stab at using SPI with EMC. Originally, I
wanted to port the Rutex Windows driver and utilities to Linux. But for
now, I need to take baby steps towards that goal.
I think controlling a spindle VFD (0 to +10V) with a MAX5312 ADC on the
On EMC1, I was running Axis speeds of more than 120ipm, I can't get EMC
2 past around 60. I am running a 1.6 ghz computer. I don't know how
much memory, will memory cause this or is it the computer?
Andy
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Take a look at this
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TweakingSoftwareStepGeneration
sam
- Original Message -
From: Andy Holcomb [EMAIL PROTECTED]
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Wednesday, March 28, 2007 3:11 PM
Subject: [Emc-users]
John Kasunich wrote:
Andy Holcomb wrote:
On EMC1, I was running Axis speeds of more than 120ipm, I can't get EMC
2 past around 60. I am running a 1.6 ghz computer. I don't know how
much memory, will memory cause this or is it the computer?
Memory is unlikely to be the problem. Its hard
Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
On EMC1, I was running Axis speeds of more than 120ipm, I can't get EMC
2 past around 60. I am running a 1.6 ghz computer.
Steppers or servos?
Steppers
What step frequency does your machine need to get 120ipm?
You didn't
Replying to myself:
John Kasunich wrote:
Do you have adequate stepgen headroom? The following snippet is from
the sample config stepper_inch.ini:
MAX_VELOCITY = 1.2
# NOTE: the step generator module applies its own limits to
# acceleration and velocity. We have
ovl max got as high as15687 (I cant remember the number, this is close)
Andy
Sam Sokolik wrote:
Take a look at this
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TweakingSoftwareStepGeneration
sam
- Original Message -
From: Andy Holcomb [EMAIL PROTECTED]
To: Enhanced Machine
Were there other SPI devices you wanted to use with this, or is the goal
just a 0-10V output? There are some good parallel single and multi-channel
DACs out there that might be easier to interface than bit-banging the port,
depending on the resolution you need. I think Maxim has some, and I
John Kasunich wrote:
Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
On EMC1, I was running Axis speeds of more than 120ipm, I can't get EMC
2 past around 60. I am running a 1.6 ghz computer.
Steppers or servos?
Steppers
What step frequency does your machine need to get
On Wed, Mar 28, 2007 at 03:56:26PM -0500, Andy Holcomb wrote:
Latest Live version
You can find the EMC version number in the Help/About window.
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Emc2 2.1.0
Andy
Chris Radek wrote:
On Wed, Mar 28, 2007 at 03:56:26PM -0500, Andy Holcomb wrote:
Latest Live version
You can find the EMC version number in the Help/About window.
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Okay I think I have it, It works better after doing both the velocity
and the accel.
Question, when I was running EMC 1, I would have problem with following
errors if I went above 100% on over speed of the axises while running a
program, what causes this and how can I fix it? Can I test this
How much HD space is required to install the live version?
Andy
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On Wed, 2007-03-28 at 14:52 -0600, Javid Butler wrote:
Were there other SPI devices you wanted to use with this, or is the goal
just a 0-10V output?
I just wanted a simple SPI device to talk to, but also have something
useful when my lathe grows up.
There are some good parallel single and
Caution: Stupid Question Ahead:
In a quick look, I don't have an ...emc2/src directory. I am using a
Ubuntu (2.6.12-magma) pre-installed with EMC2 (2.1.1) install shell
script install. I guess I need a development or source install?
(Please don't give me anything sharp, like a soldering iron.)
Kirk Wallace wrote:
Caution: Stupid Question Ahead:
In a quick look, I don't have an ...emc2/src directory. I am using a
Ubuntu (2.6.12-magma) pre-installed with EMC2 (2.1.1) install shell
script install. I guess I need a development or source install?
(Please don't give me anything sharp,
Andy Holcomb wrote:
How much HD space is required to install the live version?
Three gigs or so...
Regards,
John Kasunich
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Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
On EMC1, I was running Axis speeds of more than 120ipm, I can't get EMC
2 past around 60. I am running a 1.6 ghz computer.
Steppers or servos?
Steppers
What step frequency does your
Thanks John. I have been avoiding CVS but I think I can figure it out.
I believe there have been posts in the recent past with CVS information.
Kirk Wallace
On Wed, 2007-03-28 at 19:01 -0400, John Kasunich wrote:
Kirk Wallace wrote:
Caution: Stupid Question Ahead:
In a quick look, I
I lied 8000 steps per inch
(8000*120)/60 = 16000
where does that put me for a period?
Andy
John Kasunich wrote:
Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
John Kasunich wrote:
Andy Holcomb wrote:
On EMC1, I was running Axis
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Installing_EMC2#On_Ubuntu_5_10_and_6_06_from_source
Jeff
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Gene, I definitely agree if I could spin the bits faster I could reduce tear
out.
The only thing that I though might work (to get better rpm's with tiny bits)
is to use one of those
brushless DC RC airplane motors. Some of them run up to 55-60k rpm. I
think I might try this.
Running a
kirk wrote:
John,
Thanks for all the help. The scaling factors did the trick. On the
previous version of EMC 2.1.3 I had to increase the counts per second
just to get the thing to move.
This new version works considerably better. There is much better
control over the velocity.
Good
Andy Holcomb wrote:
I lied 8000 steps per inch
(8000*120)/60 = 16000
where does that put me for a period?
Andy
At the beginning of this thread, Sam posted this link:
http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TweakingSoftwareStepGeneration
I'd recommend reading it - it tells you how
On Wednesday 28 March 2007, Roland wrote:
At 10:35 AM 28/03/2007 -0400, you wrote:
over half an hour per pass though. MCS is selling a little air grinder
rated at 70k rpms, I wonder how that might work mounted on the side of
the head on my micromill for something like that? Has anyone here
Gene Heskett wrote:
On Wednesday 28 March 2007, Roland wrote:
At 10:35 AM 28/03/2007 -0400, you wrote:
over half an hour per pass though. MCS is selling a little air grinder
rated at 70k rpms,
we removed the milling head entirely and mounted a Pferd
air-tool.
I wasn't aware the air
On Thursday 29 March 2007, Dean Hedin wrote:
Gene, I definitely agree if I could spin the bits faster I could reduce
tear out.
The only thing that I though might work (to get better rpm's with tiny
bits) is to use one of those
brushless DC RC airplane motors. Some of them run up to 55-60k
On Wednesday 28 March 2007, John Kasunich wrote:
Gene Heskett wrote:
On Wednesday 28 March 2007, Roland wrote:
At 10:35 AM 28/03/2007 -0400, you wrote:
over half an hour per pass though. MCS is selling a little air
grinder rated at 70k rpms,
we removed the milling head entirely and mounted
If you have the money for them, Micromo makes some excellent motors that
have bearings rated for the higher speeds. Not sure how much torque you
need, but they might have something.
http://www.micromo.com
Javid
- Original Message -
From: Dean Hedin [EMAIL PROTECTED]
To: Enhanced
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