2009/12/12 Kirk Wallace kwall...@wallacecompany.com:
Just in case, here is a sample config using step type 9:
http://www.wallacecompany.com/machine_shop/Shizuoka/emc2/configs/ST-N_current/
There is a description of the stepgens here:
Ok. guys (and gals, if there are any.)
I sort of like the idea of tearing into Hal to reconfig in order to get out
what will work.
I understand the principal of using the Hal scope to check signal traces,
and Dale also said he has a scope I can use. So either way there would be
o.k. with me.
If
Martin Pinkston wrote:
I really think this will be very interesting and unique, when this
conversion will be done because 95% of it will have been done second hand.
In other words, someone telling someone (who knows squat about what he's
doing) how to do it. The other 5% you askthat would
Andy Pugh wrote:
There are 12 outputs, so indeed only enough for the phases on a
3-axis. I guess that you could hard-wire the amp-enable lines though
(And I didn't see any sign that Martin's drive had a separate one, it
might be built into some other part of the system)
But yes, the
On Sat, 2009-12-12 at 10:12 -0500, Martin Pinkston wrote:
Ok. guys (and gals, if there are any.)
I sort of like the idea of tearing into Hal to reconfig in order to get out
what will work.
I understand the principal of using the Hal scope to check signal traces,
and Dale also said he has a
Martin
For some reason my last several posts haven't shown up on the list
so I am copying you with this as well. From what you have said the
power supply, driver cards and motors all work at this time and although
you may want to replace them some time it shouldn't be required now.
The
2009/12/10 Kirk Wallace kwall...@wallacecompany.com:
I think it depends on what value Martin places on his time, money and
patience. If he reuses his power supply, drivers, motors and I/O card,
and having a parallel port buffer card in hand, he can have EMC2 running
in a short time and with
I keep forgetting to mention that the guy from Centroid tells me that these
are Bipolar motors.
Thanks,
Martin
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Get the facts.
On Thu, 2009-12-10 at 23:58 +, Andy Pugh wrote:
2009/12/10 Kirk Wallace kwall...@wallacecompany.com:
Martin will
need to get into the guts of EMC2 and HAL more than most, which may be a
deal breaker.
He is already further down that road than many, having started off
reading the
Good Afternoon listers,
I have posted a picture of my mini mill.
The reason I wanted to do a conversion over to EMC was because the Centroid
OS is very antiquated and when I saw what EMC would do, I knew it would make
the mini mill more flexible.
The Centroid OS has a very limited memory to about
2009/12/10 Martin Pinkston martinpinks...@gmail.com:
Good Afternoon listers,
I have posted a picture of my mini mill.
www.212steam.blogspot.com
I get the feeling that was all very expensive back in 1988.
I wonder what it all does?
The pinout that you published a while ago seemed to show
On Thu, 2009-12-10 at 11:22 -0500, Martin Pinkston wrote:
Good Afternoon listers,
I have posted a picture of my mini mill.
The reason I wanted to do a conversion over to EMC was because the Centroid
OS is very antiquated and when I saw what EMC would do, I knew it would make
the mini mill
Centroid OS has a very limited memory to about 250 lines on NC code and
no buffer.
Wow, how old is this Centroid control??
250 lines seems miniscule.
Dave
Martin Pinkston wrote:
Good Afternoon listers,
I have posted a picture of my mini mill.
The reason I wanted to do a conversion over to
Some of the operations that are within the Centroid controller are things
like a circle drilling program, circle milling program, pocket milling
program, face milling program, letter/number engraving. All called up on a
single one line of code. It will also do some simple macros as well.
And yes,
On Thu, 2009-12-10 at 14:53 -0500, Martin Pinkston wrote:
... snip
Squareness has never been an issue. I was amazed to find the head swept in
less than .0005. And even if the head is ever out, it's just a matter of
four very large bolt which hold the column to the base. Just shim to adjust.
2009/12/10 Martin Pinkston martinpinks...@gmail.com:
Andy, the 26 pin header pin out sheet is wrong. the Centroid guy saw a
picture I took and told me I had a different board than what he initially
thought should have been in this unit.
Let me see if I can take a picture of the pin out
Martin Pinkston wrote:
...snip
Andy, the 26 pin header pin out sheet is wrong. the Centroid guy saw a
picture I took and told me I had a different board than what he initially
thought should have been in this unit.
Let me see if I can take a picture of the pin out schematic and post it on
On Thu, 2009-12-10 at 21:31 +, Andy Pugh wrote:
2009/12/10 Martin Pinkston martinpinks...@gmail.com:
Andy, the 26 pin header pin out sheet is wrong. the Centroid guy saw a
picture I took and told me I had a different board than what he initially
thought should have been in this unit.
2009/12/10 Hubert Bahr h...@hbahr.org:
Does anybody else have an
explanation for 4 phases with only 4 wires?
It might be 2 phase bipolar, but labelled oddly.
ie imagine that P1-P4 drive a motor wire each, at +40V if the pin is
high and 0V if the pin is low.
Here's plan: after checking that
Craig, and list,
You are correct. It is a Cardinal Engineering unit.
I had forgotten about the name on the spindle belt cover. As you can see in
the picture the belt cover is not present because when the head as close to
the table as it is for most of the work I do, the belt cover does not
move
On Thu, 2009-12-10 at 22:27 +, Andy Pugh wrote:
2009/12/10 Hubert Bahr h...@hbahr.org:
Does anybody else have an
explanation for 4 phases with only 4 wires?
It might be 2 phase bipolar, but labelled oddly.
ie imagine that P1-P4 drive a motor wire each, at +40V if the pin is
high
Those controls are 20+ years old and the control design is likely even
older than that.
My guess is that you have unipolar motors. I have some motors - Slo
Syn's here that have 5 terminals. The one terminal is ground and the
other 4 are the 4 phases.
If you disconnect the motors - I bet
On Thu, 2009-12-10 at 18:25 -0500, Dave wrote:
... snip
Even a low cost bipolar setup should run circles around an old unipolar
setup. If those were servos, I'd try to save them but those stepper
motors can be replaced with decent Nema 34 bipolars for about $70 each
or less.
You are
On Thu, Dec 10, 2009 at 06:25:24PM -0500, Dave wrote:
I'd scrap the motors, the boards, and the power supply and start with a
new PS, step drivers, and motors and use a LPT port and EMC2 to drive
everything.
Judging by the four TIPxxx transistors and MTR1_PH[1-4] on that first
pinout, I
2009/12/10 Kirk Wallace kwall...@wallacecompany.com:
Martin will
need to get into the guts of EMC2 and HAL more than most, which may be a
deal breaker.
He is already further down that road than many, having started off
reading the HAL manual. not realising that stepconf was there.
I suspect
2009/12/10 Chris Radek ch...@timeguy.com:
Judging by the four TIPxxx transistors and MTR1_PH[1-4] on that first
pinout, I bet these are full step or half step unipolar drives and
motors.
I think we have only got evidence of 4 motor wires.
--
atp
On Thu, 2009-12-10 at 17:47 -0600, Chris Radek wrote:
... snip
Judging by the four TIPxxx transistors and MTR1_PH[1-4] on that first
pinout, I bet these are full step or half step unipolar drives and
motors.
In this case I agree with Dave 100%.
Chris
Et tu, Brute. What happened to your
I think we have only got evidence of 4 motor wires.
Yep, sorry. I missed that in the previous message.
Since the driver board is named Chop... something I bet it is a true
chopper drive board.
Still I'd at least dump the drive boards, keep the power supply and go
with something like
Wow...that was a lot of stuff
First of all I have to say that I am really impressed with what some of you
guys have put on the web as projects.
Kirk, I went to your web site and you tear into a machine like I tear into a
locomotive. Your lathe project was impressive. Have you finished it yet ?
Martin
Nice work. My kids would be hanging out in your yard all year
One option could be the HobbyCNC Driver and motor kit. Its a low cost way
to get upgraded and learn how the various components work at the same time.
These kits run $280 for a three axis board with three 305oz-in steppers
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