Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Gregg Eshelman
Reminds me of when I worked for an ISP and telco at the turn of the 
century. They installed a calling card phone at a food processing plant. 
The thing looked massive and it was quite expensive. The heavy steel box 
was 99.9% empty space. The phone electronics were on a circuit board the 
size of the keypad.

On 10/22/2014 1:46 PM, Pete Matos wrote:
 unfortunately that is completely accurate.  There is BIG money in keeping
 the commercial controls proprietary and away from the open source cheap and
 free options. In my view that is never gonna change but what it does do is
 make THOUSANDS of nice used machines available for scrap prices just
 because the owner got sick and tired of dumping umpteen thousands of
 dollars into a control that is less than a decade old or so. It is a
 vicious cycle not all that unlike the cellphone wars and PC wars we see in
 other avenues. People gotta make money tho so I can't fault them. I would
 not want someone to rip the carpet out from underneath my feet either if I
 had ownership and royalties coming in from a system I built and sold.  It's
 the nature of things nowadays it seems.

 Pete


 On Wed, Oct 22, 2014 at 3:35 PM, jrmitchellj . jrmitche...@gmail.com
 wrote:

 If those service techs understood what is really inside, at the core of
 those expensive, name brand control systems!
 Their job is to sell the end user module based repairs that cost several
 thousands of dollars.
 The commodity based solution, like a LinuxCNC installation, does not fit
 that paradigm, and cannot support them.


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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Gregg Eshelman
On 10/22/2014 2:18 PM, jrmitchellj . wrote:
 As an example of what I am talking about, a couple of years ago, I  had a
 film scanner, costing new several hundreds of thousand of dollars, fail.
 The service tech came out and stated a box in the system had failed, and
 would cost $6500 + labor to replace.  I sent him home!
 I pulled the box out of the system, opened it up to find a Pentium 5 SBC,
 and several servo control boards (that I looked up on the internet). On
 close inspection, I found that the fan on the Pentium heat sink had
 failed.  I pulled the chip out of the socket, and it showed that the magic
 smoke had leaked out due to excessive heat.  I found one on Ebay, ordered
 it, got for less than $7, delivered.
 Installed it, put everything back together, and tested.
 SUCCESS!

If you want the fan to not fail again, use a drop of silicone oil on its 
bearings. Silicone brake fluid is ideal for the job. It's essentially 
silicone oil with a touch of purple dye and possibly some corrosion 
inhibitors.

It has much better heat resistance and will not dry out due to 
evaporation of VOCs.


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Re: [Emc-users] Toolchanging (was Mach3 to LinuxCNC)

2014-10-23 Thread Gregg Eshelman
On 10/22/2014 4:00 PM, andy pugh wrote:
 On 22 October 2014 20:41, Pete Matos petefro...@gmail.com wrote:
 This is our next hurdle with our Cincinatti Arrow 500 VMC.  It has a
 carousel toolchanger where the head must raise and lower to load the tool.

 Yes, I think you are a prime candidate for a G-code subroutine that
 moves the Z and operates actuators through digital/analogue inputs
 (M66 / M65 etc)

 The complexity arises in detecting failures and responding
 appropriately. (imagine if the air went off and the spindle didn't
 release).

Wire an air pressure sensor switch into the e-stop circuit, same as you 
would any other system you want to have stop the machine if it fails.


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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Lester Caine
On 23/10/14 02:30, andy pugh wrote:
 My first exposure to Unix was  PDP-11 with 64K words of memory.
 I was using a PDP for a real-time control task two years ago. It still
 did the same job as when it was installed in 1982. (running an engine
 dyno)

The component distributor that I worked for in the 80's ran a PDP8 and a
PDP11 running 100 sales desks and worked well most of the time. At the
same time I had a VAX hidden away in the plant room which just had two
terminals for doing custom chip designs. The PDP's were eventually
replaced with a very expensive cluster of 4 Amdahl, at a cost somewhat
higher than my current house is worth, and packet calculators compared
to the rack of hardware currently in the garage. But I'd still prefer
the older system software to todays ...

-- 
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-
Contact - http://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - http://lsces.co.uk
EnquirySolve - http://enquirysolve.com/
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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Mark Wendt
On Thu, Oct 23, 2014 at 3:50 AM, Lester Caine les...@lsces.co.uk wrote:



 The component distributor that I worked for in the 80's ran a PDP8 and a
 PDP11 running 100 sales desks and worked well most of the time. At the
 same time I had a VAX hidden away in the plant room which just had two
 terminals for doing custom chip designs. The PDP's were eventually
 replaced with a very expensive cluster of 4 Amdahl, at a cost somewhat
 higher than my current house is worth, and packet calculators compared
 to the rack of hardware currently in the garage. But I'd still prefer
 the older system software to todays ...

 --
 Lester Caine - G8HFL



Saved this from my old VMS sysadmin days:

http://www.netfunny.com/rhf/jokes/89q1/vax.253.html

Mark
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Re: [Emc-users] LinuxCNC Meeting Stuttgart, Germany 2014

2014-10-23 Thread Rene Hopf
Hi,
I will arrive Friday evening, is there anything going on on Friday?
Are the ABB robots for sale? If they are, I might need a bigger car…
My driver is making good progress: 
https://www.dropbox.com/s/m0s75igxbtm3qw8/2014-10-23%2012.27.22.jpg?dl=0

Rene
 

 On 02 Oct 2014, at 15:04, alex chiosso achio...@gmail.com wrote:
 
 Hi Christian .
 So the Meeting will be on October 25th and 26th , ins't it ?
 I'm planning to be there .
 I would like to be on site since Friday 24th early afternoon is it possible
 ?
 I can help you to prepare the site if you want or whatever else you need to
 do for the Meeting.
 If something is changed please let me know.
 
 Regards
 
 Alex
 
 On Fri, Sep 12, 2014 at 1:44 PM, Christian Stöveken 
 christian.stoeve...@gmail.com wrote:
 
 On Fri, Sep 12, 2014 at 9:35 AM, Marius Alksnys marius.alks...@gmail.com
 wrote:
 
 I could bring electric cabinet I built for Reis RV6 robot, connect it to
 the ABB robot and try to run it. Probably I could prepare for this in
 advance.
 It has Mesa electronics with 5i23, 7i44, 7i37, 6x 8i20 and 7i49 for
 resolvers, THCAD.
 
 Are you interested?
 
 
 Sure, why not.
 
 
 If the answer is YES, then..
 For connection connector adapters are needed from Reis to ABB. For this
 connector parts to cabinet (Reis side) are needed:
 http://www.tme.eu/parking/99d7c3c845593fe353a7848e4474a3bb9d2b2676.html
 
 
 That's a Harting Han-72-DD connector - I will check on monday if we have
 one lying around.
 
 The ABB has a Harting Han-40-D - and I already organized 3 connectors with
 wires.
 Also I already figured out the pinout of the ABB's.
 
 ... could
 you please figure out what we would need to make adapters?
 
 
 Pinout of the Reis Han 72 DD, a soldering Iron and some shrinking tube I
 guess ;-)
 
 --
 Want excitement?
 Manually upgrade your production database.
 When you want reliability, choose Perforce
 Perforce version control. Predictably reliable.
 
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Re: [Emc-users] LinuxCNC Meeting Stuttgart, Germany 2014

2014-10-23 Thread alex chiosso
Hi Rene.
I'm coming from Italy and I will arrive in Stuttgart on Friday mid
afternoon.
Are you going on site on Friday ?

Alex

On Thu, Oct 23, 2014 at 12:40 PM, Rene Hopf reneh...@mac.com wrote:

 Hi,
 I will arrive Friday evening, is there anything going on on Friday?
 Are the ABB robots for sale? If they are, I might need a bigger car…
 My driver is making good progress:
 https://www.dropbox.com/s/m0s75igxbtm3qw8/2014-10-23%2012.27.22.jpg?dl=0

 Rene


  On 02 Oct 2014, at 15:04, alex chiosso achio...@gmail.com wrote:
 
  Hi Christian .
  So the Meeting will be on October 25th and 26th , ins't it ?
  I'm planning to be there .
  I would like to be on site since Friday 24th early afternoon is it
 possible
  ?
  I can help you to prepare the site if you want or whatever else you need
 to
  do for the Meeting.
  If something is changed please let me know.
 
  Regards
 
  Alex
 
  On Fri, Sep 12, 2014 at 1:44 PM, Christian Stöveken 
  christian.stoeve...@gmail.com wrote:
 
  On Fri, Sep 12, 2014 at 9:35 AM, Marius Alksnys 
 marius.alks...@gmail.com
  wrote:
 
  I could bring electric cabinet I built for Reis RV6 robot, connect it
 to
  the ABB robot and try to run it. Probably I could prepare for this in
  advance.
  It has Mesa electronics with 5i23, 7i44, 7i37, 6x 8i20 and 7i49 for
  resolvers, THCAD.
 
  Are you interested?
 
 
  Sure, why not.
 
 
  If the answer is YES, then..
  For connection connector adapters are needed from Reis to ABB. For this
  connector parts to cabinet (Reis side) are needed:
 
 http://www.tme.eu/parking/99d7c3c845593fe353a7848e4474a3bb9d2b2676.html
 
 
  That's a Harting Han-72-DD connector - I will check on monday if we have
  one lying around.
 
  The ABB has a Harting Han-40-D - and I already organized 3 connectors
 with
  wires.
  Also I already figured out the pinout of the ABB's.
 
  ... could
  you please figure out what we would need to make adapters?
 
 
  Pinout of the Reis Han 72 DD, a soldering Iron and some shrinking tube I
  guess ;-)
 
 
 --
  Want excitement?
  Manually upgrade your production database.
  When you want reliability, choose Perforce
  Perforce version control. Predictably reliable.
 
 
 http://pubads.g.doubleclick.net/gampad/clk?id=157508191iu=/4140/ostg.clktrk
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[Emc-users] Following Error

2014-10-23 Thread Rick
Hello All,

I was wondering is there any way to be able to set in the INI, the 
following error based on what the commanded feed rate is,

Looking thru all the other machines in the shop, the following error is 
based off of, how many thousands per commanded inches per minute of 
feed, following error is allowed.

  I would think this would help in the tuning aspect of things, and would 
make for a little bigger sense of security, as you would know what the 
limit is regarding the allowed error during operation.

Just a question/thought

Thanks


Rick


Superior Roll  Turning
399 East Center Street
Petersburg MI, 49270
734-279-1831
www.superiorroll.com
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Re: [Emc-users] LinuxCNC Meeting Stuttgart, Germany 2014

2014-10-23 Thread Rene Hopf
I do not know if there is anything happening on Friday. If not I will spend the 
evening in the local Hackerspace: http://shackspace.de/

 On 23 Oct 2014, at 12:59, alex chiosso achio...@gmail.com wrote:
 
 Hi Rene.
 I'm coming from Italy and I will arrive in Stuttgart on Friday mid
 afternoon.
 Are you going on site on Friday ?
 
 Alex
 
 On Thu, Oct 23, 2014 at 12:40 PM, Rene Hopf reneh...@mac.com wrote:
 
 Hi,
 I will arrive Friday evening, is there anything going on on Friday?
 Are the ABB robots for sale? If they are, I might need a bigger car…
 My driver is making good progress:
 https://www.dropbox.com/s/m0s75igxbtm3qw8/2014-10-23%2012.27.22.jpg?dl=0
 
 Rene
 
 
 On 02 Oct 2014, at 15:04, alex chiosso achio...@gmail.com wrote:
 
 Hi Christian .
 So the Meeting will be on October 25th and 26th , ins't it ?
 I'm planning to be there .
 I would like to be on site since Friday 24th early afternoon is it
 possible
 ?
 I can help you to prepare the site if you want or whatever else you need
 to
 do for the Meeting.
 If something is changed please let me know.
 
 Regards
 
 Alex
 
 On Fri, Sep 12, 2014 at 1:44 PM, Christian Stöveken 
 christian.stoeve...@gmail.com wrote:
 
 On Fri, Sep 12, 2014 at 9:35 AM, Marius Alksnys 
 marius.alks...@gmail.com
 wrote:
 
 I could bring electric cabinet I built for Reis RV6 robot, connect it
 to
 the ABB robot and try to run it. Probably I could prepare for this in
 advance.
 It has Mesa electronics with 5i23, 7i44, 7i37, 6x 8i20 and 7i49 for
 resolvers, THCAD.
 
 Are you interested?
 
 
 Sure, why not.
 
 
 If the answer is YES, then..
 For connection connector adapters are needed from Reis to ABB. For this
 connector parts to cabinet (Reis side) are needed:
 
 http://www.tme.eu/parking/99d7c3c845593fe353a7848e4474a3bb9d2b2676.html
 
 
 That's a Harting Han-72-DD connector - I will check on monday if we have
 one lying around.
 
 The ABB has a Harting Han-40-D - and I already organized 3 connectors
 with
 wires.
 Also I already figured out the pinout of the ABB's.
 
 ... could
 you please figure out what we would need to make adapters?
 
 
 Pinout of the Reis Han 72 DD, a soldering Iron and some shrinking tube I
 guess ;-)
 
 
 --
 Want excitement?
 Manually upgrade your production database.
 When you want reliability, choose Perforce
 Perforce version control. Predictably reliable.
 
 
 http://pubads.g.doubleclick.net/gampad/clk?id=157508191iu=/4140/ostg.clktrk
 ___
 Emc-users mailing list
 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users
 
 
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Re: [Emc-users] Following Error

2014-10-23 Thread andy pugh
On 23 October 2014 12:41, Rick r...@superiorroll.com wrote:

 I was wondering is there any way to be able to set in the INI, the
 following error based on what the commanded feed rate is,

If the INI file has both a MIN_FERROR and an FERROR entry then the
allowable error linearly scales between the two, using MIN_FERROR at
zero speed and FERROR at max speed.

http://www.linuxcnc.org/docs/html/config/ini_config.html#sub:AXIS-section

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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Dave Cole
Years ago I used to tie control systems into PDPs and Vax systems..  
this was in the days of fast 9600 baud serial links.
I have a never used PDP 6 foot plus rack in my garage.   It still had 
the shrink wrapped when I got it.   Back in the early 80's they were 
going to toss it into a dumpster, still stuck to a shipping pallet.
Instead it was saved by my 1978 Chevy van.  I think they told me that it 
was near $10K when it was purchased.  The rack weighs hundreds of pounds 
empty.   The project was cancelled so it was never used and sat in a 
storage room for years.
I put some shelves in it and it makes a nifty power tool storage 
cabinet.  :-)

Dave


On 10/23/2014 5:17 AM, Mark Wendt wrote:
 On Thu, Oct 23, 2014 at 3:50 AM, Lester Caine les...@lsces.co.uk wrote:


 The component distributor that I worked for in the 80's ran a PDP8 and a
 PDP11 running 100 sales desks and worked well most of the time. At the
 same time I had a VAX hidden away in the plant room which just had two
 terminals for doing custom chip designs. The PDP's were eventually
 replaced with a very expensive cluster of 4 Amdahl, at a cost somewhat
 higher than my current house is worth, and packet calculators compared
 to the rack of hardware currently in the garage. But I'd still prefer
 the older system software to todays ...

 --
 Lester Caine - G8HFL


 Saved this from my old VMS sysadmin days:

 http://www.netfunny.com/rhf/jokes/89q1/vax.253.html

 Mark
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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread pc
You could also go the way of the VAXbar... Perhaps modernize it ala RaspberryPi 
and an automated drink mixing system?


--Original Mail--
From: Dave Cole linuxcncro...@gmail.com
To: emc-users@lists.sourceforge.net
Sent: Thu, 23 Oct 2014 10:06:17 -0400
Subject: Re: [Emc-users] part 2 - Mach3 to LinuxCNC

Years ago I used to tie control systems into PDPs and Vax systems..  
this was in the days of fast 9600 baud serial links.
I have a never used PDP 6 foot plus rack in my garage.   It still had 
the shrink wrapped when I got it.   Back in the early 80's they were 
going to toss it into a dumpster, still stuck to a shipping pallet.
Instead it was saved by my 1978 Chevy van.  I think they told me that it 
was near $10K when it was purchased.  The rack weighs hundreds of pounds 
empty.   The project was cancelled so it was never used and sat in a 
storage room for years.
I put some shelves in it and it makes a nifty power tool storage 
cabinet.  :-)

Dave


On 10/23/2014 5:17 AM, Mark Wendt wrote:
 On Thu, Oct 23, 2014 at 3:50 AM, Lester Caine les...@lsces.co.uk wrote:


 The component distributor that I worked for in the 80's ran a PDP8 and a
 PDP11 running 100 sales desks and worked well most of the time. At the
 same time I had a VAX hidden away in the plant room which just had two
 terminals for doing custom chip designs. The PDP's were eventually
 replaced with a very expensive cluster of 4 Amdahl, at a cost somewhat
 higher than my current house is worth, and packet calculators compared
 to the rack of hardware currently in the garage. But I'd still prefer
 the older system software to todays ...

 --
 Lester Caine - G8HFL


 Saved this from my old VMS sysadmin days:

 http://www.netfunny.com/rhf/jokes/89q1/vax.253.html

 Mark
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Re: [Emc-users] part 2 - Mach3 to LinuxCNC

2014-10-23 Thread Gene Heskett
On Thursday 23 October 2014 03:22:11 Gregg Eshelman did opine
And Gene did reply:
 On 10/22/2014 2:18 PM, jrmitchellj . wrote:
  As an example of what I am talking about, a couple of years ago, I 
  had a film scanner, costing new several hundreds of thousand of
  dollars, fail. The service tech came out and stated a box in the
  system had failed, and would cost $6500 + labor to replace.  I sent
  him home!
  I pulled the box out of the system, opened it up to find a Pentium 5
  SBC, and several servo control boards (that I looked up on the
  internet). On close inspection, I found that the fan on the Pentium
  heat sink had failed.  I pulled the chip out of the socket, and it
  showed that the magic smoke had leaked out due to excessive heat.  I
  found one on Ebay, ordered it, got for less than $7, delivered.
  Installed it, put everything back together, and tested.
  SUCCESS!
 
 If you want the fan to not fail again, use a drop of silicone oil on
 its bearings. Silicone brake fluid is ideal for the job. It's
 essentially silicone oil with a touch of purple dye and possibly some
 corrosion inhibitors.
 
 It has much better heat resistance and will not dry out due to
 evaporation of VOCs.

That is not something I would recommend Greg, although its not anything I 
have tried either.

The reason I wouldn't try it is, particularly in a sintered bushing 
bearing, silicone has essentially zero surface tension, and will allow 
metal to metal contact, accelerating shaft wear considerably.  Only if 
well flooded, and spinning fast enough that those teeny bearings could 
float on the hydrodynamic oil film, could I see where it might be a good 
idea.  OTOH, when such a dot4 fluid is analyzed, how much of it is 
actually silicon based.  Good question.

Anecdote about cheap dot3/4 stuff.

30 years ago, when I was using a CB350F for a chair car in northeastern 
Kalipornia, I had to add some fluid to the front brake.  Took about 3 oz 
of a fresh half pint of what was supposedly good stuff.  Yeah, sure it 
was, it ate, rotted, swelled and froze every piece of OEM rubber in the 
system.  I wound up replacing the handlebar master cylinder, all the hose 
down to the caliper, and the caliper which froze the front wheel up solid.  
I had to stop (it stopped me anyway), get out a screwdriver  hammer to 
wedge the caliper pistons back away from the disk, then using only the 
back brakes, went to the bike shop and got the hose and the two kits to 
rebuild the whole maryann.  In those days they would sell you a cylinder 
kit, now the feds have mandated you have to buy it all new, raising the 
price by about $400 in 1980 dollars. 

Moral, if you can smell it, put it back on the shelf  try another brand, 
there is, or was, lots of dot3 and dot4 stuff on the shelf that would 
quickly destroy the rest of the system. This one even had a dot-3 on the 
master cylinder cap! Lasted about 12 hours after adding some cheap dot3/4 
stuff.
 
Cheers, Gene Heskett
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[Emc-users] Houston LinuxCNC Fest

2014-10-23 Thread Comcast
I'm flying home today after a great week in Houston at the LinuxCNC Fest.  I 
had the opportunity to meet some of the developers working hard to keep up with 
all the demands made on them by our community.

They were each very helpful and patiently answered all the questions that I and 
others asked.  They also listened to the input that we gave them as 'average' 
users.  I was impressed with their patience and generosity, so a big thanks to 
them for their efforts.

Also,  thanks to TX/RX Labs for playing host.  We got to help Roland and Chris 
retrofit a Burgmaster Hawk mill, though they had it pretty much under control 
when we got there.  They've also got an interesting stable of machines 
running-or soon to run- Linuxcnc.

All in all, it's been a great trip.  I can't wait to attend the next one.

Ian Penn
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Re: [Emc-users] Houston LinuxCNC Fest

2014-10-23 Thread Sebastian Kuzminsky
On 10/23/14 9:28 AM, Comcast wrote:
 I'm flying home today after a great week in Houston at the LinuxCNC Fest.  I 
 had the opportunity to meet some of the developers working hard to keep up 
 with all the demands made on them by our community.

 They were each very helpful and patiently answered all the questions that I 
 and others asked.  They also listened to the input that we gave them as 
 'average' users.  I was impressed with their patience and generosity, so a 
 big thanks to them for their efforts.

 Also,  thanks to TX/RX Labs for playing host.  We got to help Roland and 
 Chris retrofit a Burgmaster Hawk mill, though they had it pretty much under 
 control when we got there.  They've also got an interesting stable of 
 machines running-or soon to run- Linuxcnc.

 All in all, it's been a great trip.  I can't wait to attend the next one.

Hi Comcast, I mean Ian, it was good to meet you too!  I'm glad you had a 
useful trip and positive experience.

Good luck with your projects, and I hope to see you again next year :-)


-- 
Sebastian Kuzminsky

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[Emc-users] Mesa 5i24 wit 7i29

2014-10-23 Thread Marius Liebenberg
Hi All
Has anyone use this combination before. Have limited space and can only 
fit a low profile PCI card into the machine housing.
I need to drive a 7i29 H-bridge and a fair number of IO. So the extra 
ports will do for some 7i37's

-- 

Regards /Groete

Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877


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