Any guesses whether something was there? I had some trouble getting
stable velocity loops, and it makes me wonder.
our Mitsubishi servo amps where the same, the tach went to a board which
then passed it onto the AMPs, tracing it through on the boards it was
just a pass through on the
I've seen Mazak do this pass through using the Mitsubishi drives and
amps. It was a convenience wiring thing. The Mazak that we converted
used Fanuc drives and did not have tachs on the motors. For that the
encoder signals went to the control and it created a tach signal for the
drives.
SteveS
kestreltom wrote:
Hey Jon,
Perhaps you have a pre-release secret URL ;-) on the Pico website where I can
check out the converters and brushless drives for Fanuc Red Cap motors? I
didn't
see any mention of Red Cap hardware on the site the last time I checked.
Certainly an oversight on
sam sokolik wrote:
Hey! Did you end up using your home made pwm drives?
Me? My Bridgeport has been running on my second-generation PWM drive
with analog
front end since 1999 or so. (I had an earlier one with the Harris
HIP4080 chip that
kept blowing, I eventually replicated most of that
On Fri, 2009-10-30 at 22:11 -0500, Jon Elson wrote:
Ray Henry did most of the work in setting up the tool change logic in
Classic Ladder.
I must confess that I had a lot of help from my friends. The intent of
those stalwarts was to match up EMC2 with a machining center as a proof
of ability.
On Fri, Oct 30, 2009 at 10:11:49PM -0500, Jon Elson wrote:
One thing that has been common in the Fanuc systems is they use servo
amps that need velocity
feedback from the motors, but they don't have tachs on them. The
controller synthesizes an analog
velocity signal from the encoder and
On Sat, Oct 31, 2009 at 04:28:34AM +, kestreltom wrote:
I checked out that photo again and noticed that the machine is positioned
directly under a skylight. It looks as if you turned the problem of height
clearance into a natural lighting feature. Very elegant solution!
That skylight
kestreltom wrote:
a friend of mine bought a Mycenter 0 with a Fanuc 0M controller and does not
have any schematics for the power supply, amps, main controller, etc. During
the
boot sequence, some of the internal boards light up their leds, but the
control
panel crt never light up or
kestreltom wrote:
I checked out that photo again and noticed that the machine is positioned
directly under a skylight. It looks as if you turned the problem of height
clearance into a natural lighting feature. Very elegant solution!
Darn, there are no skylights in my basement! I've
Ray Henry wrote:
and rewired most
all of the machine from the most distant screw terminals to the new
boards. (These old Mazak machines had lots of screw terminals between
sensors and actuators and the M6 control)
The amount of wiring and terminal boards on that thing was totally
Chris Radek wrote:
On Fri, Oct 30, 2009 at 10:11:49PM -0500, Jon Elson wrote:
One thing that has been common in the Fanuc systems is they use servo
amps that need velocity
feedback from the motors, but they don't have tachs on them. The
controller synthesizes an analog
velocity signal
Hey! Did you end up using your home made pwm drives?
(samco on cnczone)
sam
kestreltom wrote:
Jon Elson el...@... wriotes:
Darn, there are no skylights in my basement! I've wondered if a
slightly taller machine
could be positioned just under the right spot under a kitchen cabinet,
kestreltom wrote:
During the summer months this can be beguiling, but come winter I dream of
insulation and sheetrock.
I am SOOO glad I have my machines in the basement. It can get just a
little chilly down
there in the winter, but it is better for the machines to not have wild
I just read some of Ted's Tsugami Lathe retrofit blog, and it got me thinking
about the issues surrounding an EMC conversion of a sophisticated, toolchange
machine (in this case a Kitamura MyCenter 0) example:
http://cgi.ebay.com/Kitamura-Mycenter-
On Fri, Oct 30, 2009 at 07:11:12PM +, kestreltom wrote:
I have been eyeing these machines with the thought of converting one
someday. Has
anyone ever done an EMC conversion on a machine like this? Are the Fanuc
controllers completely inscrutable?
That looks like a simple 3 axis mill
kestreltom wrote:
I just read some of Ted's Tsugami Lathe retrofit blog, and it got me thinking
about the issues surrounding an EMC conversion of a sophisticated, toolchange
machine (in this case a Kitamura MyCenter 0) example:
http://cgi.ebay.com/Kitamura-Mycenter-
Radek [mailto:ch...@timeguy.com]
Sent: Friday, October 30, 2009 3:47 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Has anyone ever done a Kitamura MyCenter/EMC
conversion?
On Fri, Oct 30, 2009 at 07:11:12PM +, kestreltom wrote:
I have been eyeing these machines
Chris Radek ch...@... writes:
That looks like a simple 3 axis mill with an arm tool changer. I
just converted a little VMC a lot like it. Coincidentally it also
originally had a Yasnac control. Mine is mid-80s, this is early-90s
era - not sure what the differences would be.
On Fri, Oct 30, 2009 at 10:11:49PM -0500, Jon Elson wrote:
The EMC crew did a Mazak
Micro-Center V at Roland
Freistad's shop in Galesburg, IL some years ago. It had an insanely
complex toolchanger system,
I don't want to minimize the great work done in the early days of EMC2
on that
On Fri, Oct 30, 2009 at 05:45:49PM -0400, Gary Corlew wrote:
Nice looking machine Chris! Do you have any other pics of it?. The Haas
machine with side tool changers work exactly like you describe, you look at
what pocket# the tool is in that you want and then go to a settings screen
to find
On Sat, Oct 31, 2009 at 03:29:43AM +, kestreltom wrote:
http://timeguy.com/cradek-files/emc/jr.jpg
Wow - a Mori Seiki w/ EMC2 controller, vey nice!
Good eye - I did not mean to hide the logo - paint job isn't going
to be done this year. It is an MV Jr.
Do the older Mori vmcs
On Fri, 2009-10-30 at 22:37 -0500, Chris Radek wrote:
On Fri, Oct 30, 2009 at 05:45:49PM -0400, Gary Corlew wrote:
Nice looking machine Chris! Do you have any other pics of it?. The Haas
machine with side tool changers work exactly like you describe, you look at
what pocket# the tool is in
On Fri, 2009-10-30 at 21:23 -0700, Kirk Wallace wrote:
... snip
Good work, Chris. I saw a video from Haas showing off their tool
management software, which allowed for alternate equivalent tools. When
the CNC sensed a worn tool, or a trip point from a table was reached, it
would automatically
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