Re: Advice / Info on Acu-Rite ENC 250 Feedback Scales




(DaveB) wrote:
On 17 Apr 2006 20:01:07 -0700, "Greg" <gregsagfg@xxxxxxx> wrote:


(DaveB) wrote:
On 17 Apr 2006 17:02:33 -0700, "Greg" <gregsagfg@xxxxxxx> wrote:

I am looking at these long travel (30') scales to go on one of my big
tube spinning machines we are upgrading to CNC control. Anyone have any
opinions on them? They output a quadrature TTL signal and have
reference marks or Signals every 4" or so. Thats acu-rites posi trac
system where you can always recover position. Is this technology being
used by the likes of Siemens and Fanuc & company? I know it works with
the Acu-Rite reaadout but was wondering if the popular controls were
using these scales for homing routines and stuff.
Thanks

Greg

www.pktubular.com

We do a lot of spinning machine retrofits and always use Heidenhain
scales. Quadrature is the norm of course and should be fine.

What type of control are you using?

We use both Num and Fanuc when record-playback is required we use Num
and have devleoped a great graphical interface for spinning.

Here is a link to a machine we recently did ,am leaving this week to
do another for the same customer.

If you need anything get in touch

http://i32.photobucket.com/albums/d1/debco99/MM.jpg
http://i32.photobucket.com/albums/d1/debco99/pnc75.jpg
http://i32.photobucket.com/albums/d1/debco99/Dscf0001.jpg
http://i32.photobucket.com/albums/d1/debco99/final2.jpg

Regards


Daveb

Dave
Nice work, I like the cabinet. As I understand it most people
retrofitting spinning machines are using Sinumerik controls. What we do
is a little different in that we spin tubing without any mandrel. Also
all reduction is done on the initial pass, not in "spin passes" like
the machines doing lighting fixture reflectors. I haven't picked a
control yet for this project.
I have two other machines that use CNC technology besides the 4 that
use hydraulic tracer servo valves. These older machines have a pretty
slick proprietary motion control system that is damn accurate, flexible
and quick to set up using some real old technology. But of the 2
machines using CNC one was retrofitted with an Allen Bradley series 9
control and the other uses the old electro logic control system. The
CNC controls are nice because we can program some neat looking barbs on
the tubes.
Do you do retrofits in the field? This machine is a little tough to
move in that it is about 58,000 punds and 44' long.

Greg

www.pktubular.com

All of our retrofits are in the field, we have done some that are
"FreeSpun" no preform.

We just build the panel here then ship it to the site and can normally
complete a start up in two weeks.

We provide complete prints and all software that we write along with
training. There are no grey areas, you get it all.

We showed the spinning control at ITMS last year and had a lot of
interest.

Then usally return for a few days for a followup to ensure the machine
runs to your expectations.

We can use any type of control but we have found Num to be a better
system and very cost effective, plus we have a proven reliable system.

When I say better its only in the sense that we can modify software to
do anything in the control we chose to do. That is how we developed
our own joystick interface for record playback mode.

You see the one PNC-75 had a Fanuc on it, almost every machine we do
has a hydraulic servo loop , we have a great interface to manage the
servo's.

If you want to discuss this any further you can get in touch anytime.


I will be in Indianapolis from the 23rd until the 6th of May on a
start-up.

Depending where you are, I can arrange for you to have a look at our
work or refer you to some of our customers for feedback.

I can also send some information on to you and provide you with some
basic numbers to get an idea of cost.

Thanks



Dave B
Debco Machinery
714-521-5663
714-334-4261 (cell_
debco99@xxxxxxxxxxxxxx


Daveb

Dave
It is amazing how almost all the people and companies working in
spinning are located in California. I have talked to some of the before
like MJC and Hess at the shows. My machine that uses the Allen Bradley
control was retrofitted by a German by name of Josef Meier he had a
small company that I believe he last called IPCM. I understand that he
has since passed. I was noot completely satisfied with the instalation
and the whole experience. Programming is straight G code which is fine
though. No tie ins to anything in the plant though. DNC, MRP or
anything else. Both machines use a crazy elctro hydraulic servo
cylinder made by Victory controls (Olsen Controls) that acts a little
like stepper controls. This is the link to their site
http://www.victorycontrols.com/
I am definitly interested. We are located out on Long Island in NY. I
will contact you.

Greg

www.pktubular.com

.



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