John Kasunich wrote:
> One approach is to consider the power-up state as "acceptable" meaning
> "since the motors were free-wheeling a minute ago, there can't be too
> much stress in the machine". Record the offset between the two encoder
> feedbacks before enabling the amps, and maintain that off
Kenneth Lerman wrote:
>
> Well, if one side can back drive the other, a possible sequence is:
>
> 1 -- Float side B and home side A. Side A will drag side B along with it.
>
> 2 -- Side B will be off of its home switch. Now lock side A (keep the
> servo active) and home side B.
>
> 3 -- Now b
Ed wrote:
> Jon Elson wrote:
>
>>Terry wrote:
>>
>>
>>>Hi
>>>
>>>I have been trying to tune my ac drives using the method in the
>>>intergrators manual--Increase the p till oscillate then increase I
>>>till it stops
>>
>
>
> This is very interesting to me as I recently purchased a small HMC with
On Mon, 14 Jul 2008, John Kasunich wrote:
> Date: Mon, 14 Jul 2008 21:11:13 -0400
> From: John Kasunich <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Tandem Axes-YY
>
> Jon Elson wrote:
>> I've seen
Jon Elson wrote:
> I've seen pictures of the machine, it looks quite rigid,
> a welded steel box-tube frame with round slider ways bolted
> every 100 - 200 mm. A modestly robust gantry, although it looks
> like 80-20 extrusion plus several round ways between the two ends.
>> It might be worth c
Jon Elson wrote:
> Kenneth Lerman wrote:
>> Jon Elson wrote:
>>
>>> Ray Henry wrote:
>>>
Are there swivel joints between the two screws so that the motors can
move independent of each other?
>>> Excellent point, and no, there do not appear to be any joints
>>> between the two sides. (
Kenneth Lerman wrote:
>
> Jon Elson wrote:
>
>>Ray Henry wrote:
>>
>>>Are there swivel joints between the two screws so that the motors can
>>>move independent of each other?
>>
>>Excellent point, and no, there do not appear to be any joints
>>between the two sides. (Dr. Lie has sent me photos
Jon Elson wrote:
> Terry wrote:
>
>>Hi
>>
>>I have been trying to tune my ac drives using the method in the
>>intergrators manual--Increase the p till oscillate then increase I
>>till it stops
>
This is very interesting to me as I recently purchased a small HMC with
Fanuc AC amps and motors. W
On Mon, 14 Jul 2008, Jon Elson wrote:
> Date: Mon, 14 Jul 2008 11:33:37 -0500
> From: Jon Elson <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] resolver to quadrature converter
>
> Dave Engvall wrote:
On Mon, 2008-07-14 at 13:02 -0400, Kenneth Lerman wrote:
>
> Jon Elson wrote:
> > Ray Henry wrote:
> >> Are there swivel joints between the two screws so that the motors can
> >> move independent of each other?
> > Excellent point, and no, there do not appear to be any joints
> > between the two
Jon Elson wrote:
> Ray Henry wrote:
>> Are there swivel joints between the two screws so that the motors can
>> move independent of each other?
> Excellent point, and no, there do not appear to be any joints
> between the two sides. (Dr. Lie has sent me photos of the
> machine.) That is going
Ray Henry wrote:
> Are there swivel joints between the two screws so that the motors can
> move independent of each other?
Excellent point, and no, there do not appear to be any joints
between the two sides. (Dr. Lie has sent me photos of the
machine.) That is going to make it MUCH harder to pr
Dave Engvall wrote:
> Hi Steve, Jon:
>
> The Analog Devices chips have really good specs especially at low freq.
> How they are rather pricey in todays world of inexpensive chips with
> excellent performance. A couple of $14 to $31 chips drives the price of
> the finished board up pretty fast.
Steve White wrote:
> Jon,
>
> I'm the guy from the CNC Workshop that had the Yaskawa encoder
> documentation you needed for testing the resolver to quadrature
> conversion. I also had the Panasonic servo motors / drives and a lot of
> other junk for sale there.
>
> Have you looked at
Hello Alex,
Thank you for the reply.
-the md5 for the 8.04 emc2 version is different than mentioned on the
website (1f30fb07a22ae3e2cf17c486f41e1c9a)
Strange as I downloaded the same file again to be sure. both copies
return as md5 1f30
-I then dl'ed the 6.06 version (which yields the corr
Are there swivel joints between the two screws so that the motors can
move independent of each other?
On Mon, 2008-07-14 at 20:54 +0700, Lie Seng-Thok wrote:
> Hello,
>
> I just nearly completed the project of retrofitting of CNC router,
> with tandem configuration on the Y-axes
>
> (i.e. 2 m
On Sun, 2008-07-13 at 19:30 -0700, Cindee Lichter wrote:
> I agree. I've tried so many different times that I have a big list that
> doesn't make any sence so now I'm loading ubuntu for the 4th time.
Hi John
One small thought for those sorta new to Linux is that you need not
reload the computer
Hi Steve, Jon:
The Analog Devices chips have really good specs especially at low
freq. How they are rather pricey in todays world of inexpensive chips
with excellent performance. A couple of $14 to $31 chips drives the
price of the finished board up pretty fast.
There is a National tach ch
Hello,
I just nearly completed the project of retrofitting of CNC router, with
tandem configuration on the Y-axes
(i.e. 2 motors on the Y movemet).
Can I get help from members who had done the setting of "homing" sequence in
HAL for this tandem YY?
The controller used is univpwm system from Pi
> One possible approach is to start with the "sim" configuration, in which
> position commands are looped back to position feedback.
Yes, I think this would probably be the best thing to do; I really
have no need for the realtime behaviour as such.
> Add to this a
> sampler RT component which al
Jon,
I just noticed the data sheet for the AD650 contains a link to an
application note specific to F/V conversion. The link is broken, but I
did find it after some searching. It seems like the hard part will be
at or near zero speed.
Here's a link to it anyway...
http://www.analog.
Jon,
I'm the guy from the CNC Workshop that had the Yaskawa encoder
documentation you needed for testing the resolver to quadrature
conversion. I also had the Panasonic servo motors / drives and a lot of
other junk for sale there.
Have you looked at the AD650 (also from Analog Devices
the only idea I have is that there might have been a problem during
burning...
did you verify the md5sum of the cd before writing?
Regards,
Alex
- Original Message -
From: "glenn de moor" <[EMAIL PROTECTED]>
To:
Sent: Monday, July 14, 2008 1:46 PM
Subject: [Emc-users] livecd Ubuntu 8.04
Hello,
Wanting to try out EMC2, I just downloaded the livecd based on *Ubuntu
8.04 Hardy Heron.
*
however booting from the cd fails immediately on start with following
message:
ISOLINUX 3.53 Debian-2007-12-11
Unknown keyword in syslinux.cfg.
Unknown keyword in syslinux.cfg.
Unknown keyword
Can you tell me what parts you see on the screen that don't match the book and
in
which manual? I'm in the process of organizing the manuals most of which will
come out with 2.2.6.
For a really short description of getting up and running once you have the
liveCD
installed.
1 run the latency
Is it possible to somehow set the EMC to work as PLC, totally autonomous with
some options of g-code control?
Regards
Klemen
-
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