On Mon, 2011-03-07 at 22:03 -0800, Clint Washburn wrote:
I am in the process of converting my 1978 Hitachi Seiki CNC lathe to EMC.
It currently has a 7.5 KW dc motor that used to be powered by FUJI SCR
drive. My first problem my house does not have 3 phase power. I am having
to work around
On 03/07/2011 05:15 PM, Kirk Wallace wrote:
On Sat, 2011-03-05 at 14:19 -0800, Kirk Wallace wrote:
... snip
The standard configuration seems to work, which provides 8 bits out, 8
bits in, 3 10-bit analogs in, 2 MPG in, LCD out (not tested yet).
Currently, I am working on a pyVCP panel
On 03/07/2011 11:25 PM, Jon Elson wrote:
Igor Chudov wrote:
I have, on my mill, a 3 phase spindle motor on a VFD, driving the spindle
with a VS belt.
I also have an encoder on the spindle.
I wonder if, for any kind of a yet-unknown purpose, I would want to orient
my spindle in a particular
On 8 March 2011 10:56, Mark Wendt mark.we...@nrl.navy.mil wrote:
which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Actually, that's a US thing. (or at least a cultural thing). UK (and,
I think the rest of the EU) have down-for-on with domestic light
On 8 March 2011 06:03, Clint Washburn cl...@clintandheidi.com wrote:
Is it realistic to have a 10 hp 3
phase spindle on single phase power?
I read somewhere that it is not possible to get a CE mark for any
single-phase-input inverter above a certain power. However I think
that might have been
On 03/08/2011 06:36 AM, andy pugh wrote:
On 8 March 2011 10:56, Mark Wendtmark.we...@nrl.navy.mil wrote:
which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Actually, that's a US thing. (or at least a cultural thing). UK (and,
I think the rest of the
I would be very interested in doing this - however, my VFDs (Toshiba VFS-11) do
not support an axis encoder input
has anybody done this using in EMC/ creative HAL wiring - maybe a PID
controller - sort of 'parallel' to normal spindle control?
I'd be very interested in such a setup example!
On 8 March 2011 12:08, Mark Wendt mark.we...@nrl.navy.mil wrote:
On the original setup, normal oil pressure
would have the needle pointing straight up indicating 40 pis,
...
your engine seizes. ;-)
Been there, but the normal position was with the needle straight down.
Not a good choice if
On 8 March 2011 12:21, Michael Haberler mai...@mah.priv.at wrote:
I would be very interested in doing this - however, my VFDs (Toshiba VFS-11)
do not support an axis encoder input
has anybody done this using in EMC/ creative HAL wiring - maybe a PID
controller - sort of 'parallel' to
On 8 March 2011 08:03, Clint Washburn cl...@clintandheidi.com wrote:
I am in the process of converting my 1978 Hitachi Seiki CNC lathe to EMC.
It currently has a 7.5 KW dc motor that used to be powered by FUJI SCR
drive. My first problem my house does not have 3 phase power. I am having
to
On 03/08/2011 07:36 AM, andy pugh wrote:
On 8 March 2011 12:08, Mark Wendtmark.we...@nrl.navy.mil wrote:
On the original setup, normal oil pressure
would have the needle pointing straight up indicating 40 pis,
...
your engine seizes. ;-)
Been there, but the normal position was with the
On 08/03/2011 10:56, Mark Wendt wrote:
All the rows of LED
lights/radio buttons after row 100 have the ON radio button on top of
the OFF radio button, which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Except in the UK and most of the Continent and
On 8 March 2011 12:52, Mark Wendt mark.we...@nrl.navy.mil wrote:
Ouch! Was that gauge made by a certain Prince of Darkness? ;-)
I think that one is a product of The Bourdon Gauge Manufacturing Co.
--
atp
Torque wrenches are for the obedience of fools and the guidance of wise men
On 03/08/2011 08:14 AM, Ian W. Wright wrote:
On 08/03/2011 10:56, Mark Wendt wrote:
All the rows of LED
lights/radio buttons after row 100 have the ON radio button on top of
the OFF radio button, which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Except
On 03/08/2011 08:25 AM, andy pugh wrote:
On 8 March 2011 12:52, Mark Wendtmark.we...@nrl.navy.mil wrote:
Ouch! Was that gauge made by a certain Prince of Darkness? ;-)
I think that one is a product of The Bourdon Gauge Manufacturing Co.
Are they a subsidiary of Lucas? ;-)
Mark
Yes, in Australia, down is ON.
Cheers,
Peter.
On 8/03/2011 10:36 PM, andy pugh wrote:
On 8 March 2011 10:56, Mark Wendtmark.we...@nrl.navy.mil wrote:
which is typically how we as humans think about
light switches - UP is ON, DOWN is OFF.
Actually, that's a US thing. (or at least a
Yeah, but you guys drive on the wrong side of the road too... ;-)
Mark
On 03/08/2011 06:47 AM, Peter Homann wrote:
Yes, in Australia, down is ON.
Cheers,
Peter.
On 8/03/2011 10:36 PM, andy pugh wrote:
On 8 March 2011 10:56, Mark Wendtmark.we...@nrl.navy.mil wrote:
which is
Igor,
I could see the possibility of using your setup with a tap to tap
threads into holes,
where rotation and vertical travel must be coordinated, both going in
and out/up and down.
or if you have a tool changer that requires given orientation of the
tool before
putting it away or getting it
For machinery, UP should be On.
-If the switch breaks, it is more likely to revert to the off position.
-Bumping a switch while holding other things is more likely to knock it down
-It takes more effort to push a switch upp than down, to a safer position.
Regards
Roland
On 8 March 2011 15:46,
On 8 March 2011 14:48, Roland Jollivet roland.jolli...@gmail.com wrote:
For machinery, UP should be On.
-If the switch breaks, it is more likely to revert to the off position.
-Bumping a switch while holding other things is more likely to knock it down
-It takes more effort to push a switch
On Tuesday, March 08, 2011 11:35:05 AM Peter Homann did opine:
Yes, in Australia, down is ON.
Thats because you are already upside down. :-D
Sorry Peter, but you really did leave that one wide open. ;)
Cheers,
Peter.
On 8/03/2011 10:36 PM, andy pugh wrote:
On 8 March 2011 10:56,
On Tuesday, March 08, 2011 11:40:33 AM andy pugh did opine:
On 8 March 2011 12:52, Mark Wendt mark.we...@nrl.navy.mil wrote:
Ouch! �Was that gauge made by a certain Prince of Darkness? �;-)
I think that one is a product of The Bourdon Gauge Manufacturing Co.
Who is no doubt owned by Lucas
emc-users-requ...@lists.sourceforge.net wrote:
Message: 5
Date: Mon, 7 Mar 2011 22:03:45 -0800
From: Clint Washburncl...@clintandheidi.com
Subject: [Emc-users] Single Phase Lathe spindle motor question
To: 'Enhanced Machine Controller \(EMC\)'
emc-users@lists.sourceforge.net
Guys, call me stupid, but why can't the OP run his lathe off of that DC
spindle motor? All he needs is a rectifier bridge to run it at constant
speed.
i
On Tue, Mar 8, 2011 at 10:54 AM, Ted Hyde laser...@gmail.com wrote:
emc-users-requ...@lists.sourceforge.net wrote:
Message: 5
Date: Mon,
On Mon, 2011-03-07 at 22:03 -0800, Clint Washburn wrote:
I am in the process of converting my 1978 Hitachi Seiki CNC lathe to EMC.
It currently has a 7.5 KW dc motor that used to be powered by FUJI SCR
drive. My first problem my house does not have 3 phase power. I am having
to work around
On 8 March 2011 17:16, dave dengv...@charter.net wrote:
Just to be totally contrary if the dc motor is working fine then use a
rotary single phase to three phase converter.
There is a fair chance that the existing DC drive might work OK on
230V single phase. I would think it is probably worth
or look at dc drives from someone like amc... I have gotten them as
large as 100a 400vdc (I would pick the ones with ac inputs..)
sam
On 3/8/2011 11:31 AM, andy pugh wrote:
On 8 March 2011 17:16, davedengv...@charter.net wrote:
Just to be totally contrary if the dc motor is working fine
On Tue, 2011-03-08 at 05:56 -0500, Mark Wendt wrote:
... snip
see things in a certain order or configuration. All the rows of LED
lights/radio buttons after row 100 have the ON radio button on top of
the OFF radio button, which is typically how we as humans think about
light switches - UP
Igor Chudov wrote:
Thanks, something like this?
Could EMC work with it?
We don't have a lot of EMC2 experience with combined spindle/axes.
Several schemes have been suggested for how to switch back and forth
between a
spindle and a C axis. I think a couple people have done it.
I have an 11 KW Toshiba inverter on my 7.5 Hp Sheldon 15 lathe. The
VFD was
made available for shipping cost only, so no particular reason to choose
that amount
of over-rating. It works great, and I can't see any limitations in its
use. It doesn't get
any fault conditions. I have installed
Igor Chudov wrote:
Guys, call me stupid, but why can't the OP run his lathe off of that DC
spindle motor? All he needs is a rectifier bridge to run it at constant
speed.
Well, a 10 Hp DC motor will draw a LOT of current at start-up. Yes,
there is no reason he can't
do that, and there are
On Tue, Mar 8, 2011 at 12:45 PM, Jon Elson el...@pico-systems.com wrote:
Igor Chudov wrote:
Guys, call me stupid, but why can't the OP run his lathe off of that DC
spindle motor? All he needs is a rectifier bridge to run it at constant
speed.
Well, a 10 Hp DC motor will draw a LOT of
On 08/03/2011 02:52, Igor Chudov wrote:
Robert, would you show some examples of such drives, so that I know what to
look for? Thanks!
Yaskawa
http://www.yaskawa.com/site/products.nsf/products/Industrial%20AC%20Drives~G7.html
Control Techniques
On Tue, 2011-03-08 at 09:16 -0800, dave wrote:
On Mon, 2011-03-07 at 22:03 -0800, Clint Washburn wrote:
I am in the process of converting my 1978 Hitachi Seiki CNC lathe to EMC.
It currently has a 7.5 KW dc motor that used to be powered by FUJI SCR
drive. My first problem my house does not
I emc'ed a small benchtop mill back when it was pre-emc2. That machine has
worked great, but I would like something bigger and stiffer. I recently
redid my config, upgraded to EMC2, and it's even better than the old EMC.
The HAL is sweet.
I would be doing very small niche production (20-50
On Tue, Mar 8, 2011 at 1:12 PM, Kirk Wallace kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 09:16 -0800, dave wrote:
On Mon, 2011-03-07 at 22:03 -0800, Clint Washburn wrote:
I am in the process of converting my 1978 Hitachi Seiki CNC lathe to
EMC.
It currently has a 7.5 KW dc
On Tue, Mar 8, 2011 at 1:54 PM, John Murphy j...@wyosip.com wrote:
I emc'ed a small benchtop mill back when it was pre-emc2. That machine has
worked great, but I would like something bigger and stiffer. I recently
redid my config, upgraded to EMC2, and it's even better than the old EMC.
The
If the control still works, why not just use it until it croaks? Does it only
have a tape drive or something similar that makes it miserable to use?
--
What You Don't Know About Data Connectivity CAN Hurt You
This paper
Thanks for all the posts. I am on my lunch break but will be able to read all
the posts again. To give a little history about this lathe, I bought it about
8 years or so ago. Right around the time hitachi seiki went bankrupt. I have
not been able to acquire any manuals for it ( it is a
On Tue, 2011-03-08 at 15:31 -0500, Colin K wrote:
If the control still works, why not just use it until it croaks? Does
it only have a tape drive or something similar that makes it miserable
to use?
I tend to agree with Colin. I reused the steppers and drivers on my
mill:
On Tue, Mar 8, 2011 at 3:04 PM, Kirk Wallace kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 14:02 -0600, Igor Chudov wrote:
... snip
Another thing is that for all static and rotary converters I have seen,
the single phase is passed right through and the converter creates a 90
On Tue, Mar 8, 2011 at 3:22 PM, Kirk Wallace kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 15:31 -0500, Colin K wrote:
If the control still works, why not just use it until it croaks? Does
it only have a tape drive or something similar that makes it miserable
to use?
I tend to
On Tue, 2011-03-08 at 15:37 -0600, Igor Chudov wrote:
... snip
You have a tool changer! It is awesome!
... snip
I got lucky. Even a blind squirrel can find a nut eventually.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
California, USA
On Tue, Mar 8, 2011 at 4:03 PM, Kirk Wallace kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 15:35 -0600, Igor Chudov wrote:
... snip
You can only have equal voltages l1-l3, l2-l3, l1-l2, at 120 degree phase
angles.
With 0, 90, 180, if the L3 peak to peak is higher than L1-L2,
Igor,
Thanks for posting this and putting the work into your website. My
Series II saga has taken far too long. I've had almost every piece
working at one time or another. I have some drives coming in tomorrow
that will hopefully get me finished. I am thinking about motorizing
the knee and
On Tue, 2011-03-08 at 16:07 -0600, Igor Chudov wrote:
On Tue, Mar 8, 2011 at 4:03 PM, Kirk Wallace
kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 15:35 -0600, Igor Chudov wrote:
... snip
You can only have equal voltages l1-l3, l2-l3, l1-l2, at 120 degree phase
angles.
On Tue, Mar 8, 2011 at 4:43 PM, Kirk Wallace kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 16:07 -0600, Igor Chudov wrote:
On Tue, Mar 8, 2011 at 4:03 PM, Kirk Wallace
kwall...@wallacecompany.comwrote:
On Tue, 2011-03-08 at 15:35 -0600, Igor Chudov wrote:
... snip
You
Ted,
What kind of motor did you go with and what model of vfd do you use? Also I
have not yet purchased a drive yet I am weighing my options. I am thinking of
5-7.5 hp. With the price some of the vfds are going for I would pay several
times over what I paid for the lathe.
Thanks,
Clint
On
Igor Chudov wrote:
On Tue, Mar 8, 2011 at 1:12 PM, Kirk Wallace
kwall...@wallacecompany.comwrote:
Another thing is that for all static and rotary converters I have seen,
the single phase is passed right through and the converter creates a 90
(or 270) degree phase, so you get 0, 90 and
Kirk Wallace wrote:
But there is no getting around the fact L1 and L2 are 180 degrees apart.
Perfectly normal in any 3-phase situation. Any two points are 180
degrees apart on their own line.
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On Tue, 8 Mar 2011, Clint Washburn wrote:
Date: Tue, 8 Mar 2011 18:54:50 -0800
From: Clint Washburn cl...@clintandheidi.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: 'Enhanced Machine Controller (EMC)' emc-users@lists.sourceforge.net
Subject: Re:
https://lists.sourceforge.net/lists/listinfo/emc-users
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The control is a trickle feed (300 bps) or paper tape I understand. I don't
have 3 phase, so I was thinking of converting the control side so I could
run it single phase (shouldn't be too hard) and the installing a VFD for the
spindle, which I want to do anyway.
Thanks for the input. I think it
The value of the boss control is negative.
The value of steppers is also somewhat questionable, in my opinion, but they
will work great.
That Tree 425 looks like a serious machine.
i
On Tue, Mar 8, 2011 at 10:42 PM, John Murphy j...@wyosip.com wrote:
The control is a trickle feed (300 bps)
Let me try to provide more details on my understanding of the phase
timing of DIY converters. Attached is a schematic of a common rotary
converter. The source is here:
http://www.metalwebnews.com/howto/ph-conv/ph-conv.html
http://www.metalwebnews.com/howto/ph-conv/fig1.html
I used this to make
On Tue, 2011-03-08 at 20:38 -0600, Jon Elson wrote:
... snip
You really HAVE to draw this out on paper to understand it.
Does the drawing method have a name I can search for and study?
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/index.html
Clint Washburn wrote:
What model Toshiba is it?
It is a Tosvert VF-A5, a pretty old model. Also, the manual is pretty
inscrutable, it took
me several days to figure out enough to do what I wanted, mostly related
to making a 3-button
control work. I had to add two relays as I couldn't
Kirk Wallace wrote:
On Tue, 2011-03-08 at 20:38 -0600, Jon Elson wrote:
... snip
You really HAVE to draw this out on paper to understand it.
Does the drawing method have a name I can search for and study?
Drawing included in next email message.
Jon
?
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database 5937 (20110308) __
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--
Colocation vs. Managed Hosting
On Tue, 2011-03-08 at 18:52 -0800, Clint Washburn wrote:
Are there any VFD's you recommend that would support such a motor?
-Original Message-
From: Kirk Wallace [mailto:kwall...@wallacecompany.com]
Sent: Tuesday, March 08, 2011 12:00 AM
To: Enhanced Machine Controller (EMC)
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