date:20160207

Re: [Emc-users] ZAY7045FG Retrofit CNC

2016-02-07 Thread Erik Christiansen

On 08.02.16 10:16, Marshland Engineering wrote:
> I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone interested in
> the progress with photos ?

You bet. Will it be the head travel which becomes Z, with quill locked?

I had thought of buying an RF45 and converting it, but don't see that
happening, with everything else that needs to be done.

Erik

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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread John Thornton

Do you just need the MPG or a pendant? I thought AliExpress was for when 
you didn't need something in a hurry...

JT

On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
> Just wondering if anyone has had a chance to look at this, all the units we 
> already have in service have a "Line Driver" type output, this says "TTL", 
> but they are out of stock of the ones we use, and I need one pretty quickly,
>
> Thanks
>
> Rick
>
>
>  Original Message 
> Subject: MPG Handwheel for use with 7i73
> From: "Rick Lair" 
> Date: Tue, February 2, 2016 2:01 pm
> To: "Emc Users" 
>
> This is mainly directed at PCW, but after looking at this,
>
>
> http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0
>
>
> Will this be an acceptable handwheel to use with a 7i73?
>
> It says
>   - Required 5V+, 150mA, power for MPG
>   - Phase output is A ,/A and B,/B;
>   - TTL output, drive capability +-20mA;
>
> Not sure about the "TTL" part 
>
>


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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread John Thornton

http://www.amazon.com/Rotary-Manual-Generator-Handwheel-100PPR/dp/B00ZO6UNFM/ref=sr_1_7?ie=UTF8=1454849140=8-7=pulse+generator+cnc

On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
> Just wondering if anyone has had a chance to look at this, all the units we 
> already have in service have a "Line Driver" type output, this says "TTL", 
> but they are out of stock of the ones we use, and I need one pretty quickly,
>
> Thanks
>
> Rick
>
>
>  Original Message 
> Subject: MPG Handwheel for use with 7i73
> From: "Rick Lair" 
> Date: Tue, February 2, 2016 2:01 pm
> To: "Emc Users" 
>
> This is mainly directed at PCW, but after looking at this,
>
>
> http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0
>
>
> Will this be an acceptable handwheel to use with a 7i73?
>
> It says
>   - Required 5V+, 150mA, power for MPG
>   - Phase output is A ,/A and B,/B;
>   - TTL output, drive capability +-20mA;
>
> Not sure about the "TTL" part 
>
>


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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread rick

We do need the whole pendant, I found these same ones on eBay, with a 2-3 week 
delivery. The ones we normally buy are 3-4 weeks, and cost $150 plus shipping. 

We broke the stems off of the selector switches on one of the pendants on one 
of our turning centers, so I stole the unit off of our machining center 
temporarily. 

The selectors are pcb mounted, and I'm not near talented enough to unsolder the 
13 little pins out of the sockets, and solder the new ones back in. 

Rick 



 Original Message 
Subject: Re: [Emc-users] MPG Handwheel for use with 7i73
From: "John Thornton" 
Date: Sun, February 7, 2016 7:45 am
To: "Enhanced Machine Controller (EMC)" 

Do you just need the MPG or a pendant? I thought AliExpress was for when 
you didn't need something in a hurry...

JT

On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
> Just wondering if anyone has had a chance to look at this, all the units we 
> already have in service have a "Line Driver" type output, this says "TTL", 
> but they are out of stock of the ones we use, and I need one pretty quickly,
>
> Thanks
>
> Rick
>
>
>  Original Message 
> Subject: MPG Handwheel for use with 7i73
> From: "Rick Lair" 
> Date: Tue, February 2, 2016 2:01 pm
> To: "Emc Users" 
>
> This is mainly directed at PCW, but after looking at this,
>
>
> http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0
>
>
> Will this be an acceptable handwheel to use with a 7i73?
>
> It says
>   - Required 5V+, 150mA, power for MPG
>   - Phase output is A ,/A and B,/B;
>   - TTL output, drive capability +-20mA;
>
> Not sure about the "TTL" part 
>
>


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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread rick

Just wondering if anyone has had a chance to look at this, all the units we 
already have in service have a "Line Driver" type output, this says "TTL", but 
they are out of stock of the ones we use, and I need one pretty quickly,  

Thanks 

Rick 


 Original Message 
Subject: MPG Handwheel for use with 7i73
From: "Rick Lair" 
Date: Tue, February 2, 2016 2:01 pm
To: "Emc Users" 

This is mainly directed at PCW, but after looking at this,

  
http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0


Will this be an acceptable handwheel to use with a 7i73?

It says
 - Required 5V+, 150mA, power for MPG
 - Phase output is A ,/A and B,/B;
 - TTL output, drive capability +-20mA;

Not sure about the "TTL" part 


-- 

Thanks


Rick Lair
Superior Roll & Turning LLC
399 East Center Street
Petersburg MI, 49270
PH: 734-279-1831
FAX: 734-279-1166
www.superiorroll.com



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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Stuart Stevenson

Andy,
I saw a 60 taper machine in storage here in Wichita.
It was from an arsenal.
The machine was huge. I would think it could cut the threads with a thread
mill or single point tooling with the size of the adapter.
I had never imagined an adapter that size.
The attached picture shows a comparison between 50 taper adapters (in the
man's hand) and 60 taper adapters in the box. The picture is not of the
machine here. It is just an example I found on the internet.
The link also shows dimensions in the chart at the bottom of the page.
Large, heavy, grown  equipment.

http://parlecparts.com/pages/cat_taper_toolholders

thanks
Stuart


On Sun, Feb 7, 2016 at 2:15 PM, andy pugh  wrote:

>
> https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg
>
> I suspect an extremely specialised machine for the internal version.
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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[Emc-users] ZAY7045FG Retrofit CNC

2016-02-07 Thread Marshland Engineering

I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone interested in
the progress with photos ?
 
http://s93480190.onlinehome.us/zay/zay7045fg.bmp

Cheers Wallace


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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread tom-emc

Super sized machines are still made. IMTS (in Chicago Sept 12-16 this year) has 
had giant lathes in the past.  I was amazed at one that had what looked to be a 
railroad car axle with wheels which appeared to be turned from a single billet 
of steel (that must have been enormous!).  By the way, IMTS is worth attending 
if you are interested in machines (anyone here who isn’t :-) It is really a 
spectacle, the size and number of machines installed in McCormick Place that 
week and the $$$ spent by companies to be there.
-Tom


> On Feb 7, 2016, at 4:12 PM, Bruce Layne  wrote:
> 
> I have a friend who is a mechanical engineer at the Naval Ordnance 
> Station in Louisville.   I inquired about the machining on these big 
> naval guns, and he told me that most of the drawings are from the 1940s, 
> and in general, the machining is manual and conventional, although the 
> lathes and other machinery are super sized.  No doubt they do need to 
> make special machining tools to make some of the odder things they can't 
> make with large but otherwise conventional shop tools.
> 
> When I'm using my little lathe in my basement shop, I always keep in 
> mind the story my friend told me about one of their most experienced 
> machinists who one day, for no apparent reason, reached down inside the 
> bore of a barrel that was slowly spinning in the lathe. The rag in his 
> hand wedged and he flipped around several times before the lathe could 
> be stopped.  It didn't kill him, but it destroyed his shoulder.  
> Horrific stories like that have given me a great appreciation for the 
> hazards lurking in my own little lathe.
> 
> Many of these large naval guns are being given a new lease on life with 
> modern electronics, much as old military planes such as the B-52 keep 
> being upgraded with new electronics.
> 
> I have another friend who got a personal tour of Faxon Machining, a very 
> specialized machine shop.  They have large lathes that turn some of 
> these huge barrels for the navy.  While my friend was there, they were 
> turning what was essentially the drive shaft for a nuclear reactor.
> 
> It's humbling to see people working at such scale, but also inspiring.  
> I was a teenager visiting a friend whose dad was an engineer.  I had 
> decided to be an engineer a few years before but still didn't know much 
> about engineering.  I did know that his dad had a very nice, 
> meticulously organized and spotless machine shop in his basement, and we 
> weren't allowed to go in there.  I saw a large drawing near their front 
> door and I slipped off the rubber band, unrolled it, and sneaked a 
> peek.  For about a minute, I tried to make sense of it but I couldn't 
> determine what it represented. Then, near the bottom of the 48" X 36" 
> drawing was an object that was about 3/4" long that I recognized as a 
> railroad coal car.  My friend's dad was designing a new coal fueled 
> power plant.
> 
> 
> 
> 
> 
> On 02/07/2016 03:15 PM, andy pugh wrote:
>> https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg
>> 
>> I suspect an extremely specialised machine for the internal version.
>> 
> 
> 
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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread John Kasunich

Considering that it was the 1940s, I'm not sure how common thread-milling was.
Plenty of room inside that breech - maybe a cam-operated "rapid retract" single 
point threading tool?

Found this page, doesn't explain how they cut the threads but does elaborate a 
bit on other construction features.
http://www.eugeneleeslover.com/USNAVY/GUN-BARL-CONSTRUCTION-1.html

A picture at the bottom hints that the female breech threads weren't cut into 
the barrel itself, but instead
were cut in a breech housing.  The barrel was attached to the housing with a 
regular (not stepped) interrupted
thread which would be much simpler to cut - probably something resembling a 
shaper to make the gaps,
then single-point it.

On Sun, Feb 7, 2016, at 03:15 PM, andy pugh wrote:
> https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg
> 
> I suspect an extremely specialised machine for the internal version.
> 
> -- 
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
> 
> --
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-- 
  John Kasunich
  jmkasun...@fastmail.fm

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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Jack Coats

When in college at TAMU, the mech engr machine shop had some big
equipment.  One lathe would swing about 6' dia, and 20'+ length in the
bed plus head stock.  That was the largest engine lathe I have seen.
I never saw them use it, but it was kept in usable shape and yes, they
kept some standard tooling around for it.  Awesome equipment. (that
was in the early 1970's and it had been there for years).

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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread John Kasunich

A post on this page:
http://yarchive.net/metal/artillery_thread.html

says:

In full size practice the male and female threads are SCREWCUT (not Milled) on
specially adapted, relieving lathes with an interrupted indexing motion.  This
usually takes the form of a special, heavy duty, "geneva" type motion.
Contemporary accounts speak of "great crashings and bangings and sudden
shuddering stops" accompanied by a tool point that moves in and out, under cam
control, to cut the various thread diameters.



On Sun, Feb 7, 2016, at 04:35 PM, John Kasunich wrote:
> 
> 
> On Sun, Feb 7, 2016, at 04:18 PM, andy pugh wrote:
> > Maybe I should have been more explicit about the question...
> > 
> > How do you machine an internal part-thread that ends hard against a 
> > shoulder?
> > 
> 
> Very carefully :-)
> 
> This pic
> http://www.eugeneleeslover.com/PAGE_56_Figure_5B10_C.JPG
> shows that there was a bit of a relief groove.  Cutting speeds in those
> days were slower (no carbide).  They may have simply run the parts 
> slow enough that a rapid-retract toolholder could pull clear in the time
> it took to travel the width of that groove.
> 
> 
> 
>   John Kasunich
>   jmkasun...@fastmail.fm
> 
> --
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-- 
  John Kasunich
  jmkasun...@fastmail.fm

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Re: [Emc-users] Eagle mill retro fit

2016-02-07 Thread John Thornton

I'm not sure how close the 1400 is to my 1100M but in the right cabinet 
is there 3 boards with a connector on top and one on the bottom of each 
board?

http://gnipsel.com/images/bp-knee-mill/bpel01.jpg

That's all that's left in my cabinet is the drives and power supply.

JT

On 2/7/2016 11:06 AM, Dan Bloomquist wrote:
> Hi,
> I'm pretty new to all this, I knew about nothing a year ago, then my son
> needed a plasma table, and being the computer guy, we built it in my
> shop. BTW, he started up his business about 4 months ago and has done
> some amazing work so far.
>
> 
>
> In March I found an Eagle Mill on Ebay and was surprised to take the bid.
>
> 
>
> I did some work with it running with the Anilam, but it has mostly sat
> idle so far. As the days get warmer I want to convert this thing.
> Closest I could find to someone else doing this was 'Project Sheet Cake'.
>
> 
>
>
> What is different is that it their mill positions with motor encoders.
> My mill has tachs on the motors and glass scales. I haven't put a scope
> on the glass but judging from the wires, they are quadrature. I can't
> imagine how it would work if they were not. From what I can find making
> this work takes a bit of thought. It is not as simple as using motor
> encoders directly. So, my first question would be, 'has anyone here done
> a conversion like this?' I'm guessing there will be a set of Mesa boards
> that can handle this job and if someone has done this, that is what they
> used.
>
> Thanks, Dan.
>
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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread andy pugh

Maybe I should have been more explicit about the question...

How do you machine an internal part-thread that ends hard against a shoulder?


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[Emc-users] Any idea how they machine these?

2016-02-07 Thread andy pugh

https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg

I suspect an extremely specialised machine for the internal version.

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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Bruce Layne

I have a friend who is a mechanical engineer at the Naval Ordnance 
Station in Louisville.   I inquired about the machining on these big 
naval guns, and he told me that most of the drawings are from the 1940s, 
and in general, the machining is manual and conventional, although the 
lathes and other machinery are super sized.  No doubt they do need to 
make special machining tools to make some of the odder things they can't 
make with large but otherwise conventional shop tools.

When I'm using my little lathe in my basement shop, I always keep in 
mind the story my friend told me about one of their most experienced 
machinists who one day, for no apparent reason, reached down inside the 
bore of a barrel that was slowly spinning in the lathe. The rag in his 
hand wedged and he flipped around several times before the lathe could 
be stopped.  It didn't kill him, but it destroyed his shoulder.  
Horrific stories like that have given me a great appreciation for the 
hazards lurking in my own little lathe.

Many of these large naval guns are being given a new lease on life with 
modern electronics, much as old military planes such as the B-52 keep 
being upgraded with new electronics.

I have another friend who got a personal tour of Faxon Machining, a very 
specialized machine shop.  They have large lathes that turn some of 
these huge barrels for the navy.  While my friend was there, they were 
turning what was essentially the drive shaft for a nuclear reactor.

It's humbling to see people working at such scale, but also inspiring.  
I was a teenager visiting a friend whose dad was an engineer.  I had 
decided to be an engineer a few years before but still didn't know much 
about engineering.  I did know that his dad had a very nice, 
meticulously organized and spotless machine shop in his basement, and we 
weren't allowed to go in there.  I saw a large drawing near their front 
door and I slipped off the rubber band, unrolled it, and sneaked a 
peek.  For about a minute, I tried to make sense of it but I couldn't 
determine what it represented. Then, near the bottom of the 48" X 36" 
drawing was an object that was about 3/4" long that I recognized as a 
railroad coal car.  My friend's dad was designing a new coal fueled 
power plant.

On 02/07/2016 03:15 PM, andy pugh wrote:
> https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg
>
> I suspect an extremely specialised machine for the internal version.
>

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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread John Kasunich

On Sun, Feb 7, 2016, at 04:18 PM, andy pugh wrote:
> Maybe I should have been more explicit about the question...
> 
> How do you machine an internal part-thread that ends hard against a shoulder?
> 

Very carefully :-)

This pic
http://www.eugeneleeslover.com/PAGE_56_Figure_5B10_C.JPG
shows that there was a bit of a relief groove.  Cutting speeds in those
days were slower (no carbide).  They may have simply run the parts 
slow enough that a rapid-retract toolholder could pull clear in the time
it took to travel the width of that groove.

  John Kasunich
  jmkasun...@fastmail.fm

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Re: [Emc-users] ZAY7045FG Retrofit CNC

2016-02-07 Thread Pete Matos

Sweet looks very familiar.  I kinda miss my RF45 retrofit it was my first
one ;)  Good luck with it man!

Pete


On Sun, Feb 7, 2016 at 4:16 PM, Marshland Engineering <
marshl...@marshland.co.nz> wrote:

> I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone
> interested in
> the progress with photos ?
>
> http://s93480190.onlinehome.us/zay/zay7045fg.bmp
>
> Cheers Wallace
>
>
>
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A and N Precision and Fabrication
Maryville, Tennessee
865-236-8996
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Re: [Emc-users] pncconf problem

2016-02-07 Thread Condit Alan

I forgot to say I am running linuxCNC version 2.7.3.

I am trying to set up a config to use a 7i43 board with pncconf. I tried to set 
up two home and limit switches (both-home-x) and (both-home-z). However, when I 
look at the hal file
I get (both-home-y) and (both-home-a).

From Hal file:
# external input signals

# --- BOTH-HOME-Y ---
net both-home-y <=  hm2_7i43.0.gpio.026.in

# --- BOTH-HOME-A ---
net both-home-a <=  hm2_7i43.0.gpio.027.in

When I try to re-edit the file in pncconf it shows (both-home-x) and 
(both-home-z). I know I can fix it be hand editing but I don’t know what else 
may be going wrong that is not so obvious.

I also tried setting up X, Y and Z and got Y, Z, and A.

Thanks,
Alan
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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Ken Strauss

There was an article in Model Engineer Magazine (British publication) on
doing it at home. See Volume 176, Issue 4017, page 464. I have a scan of the
article but it is too large to post.

> -Original Message-
> From: John Kasunich [mailto:jmkasun...@fastmail.fm]
> Sent: Sunday, February 07, 2016 4:47 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Any idea how they machine these?
>
> A post on this page:
> http://yarchive.net/metal/artillery_thread.html
>
> says:
>
> In full size practice the male and female threads are SCREWCUT (not
Milled)
> on specially adapted, relieving lathes with an interrupted indexing
motion.
> This usually takes the form of a special, heavy duty, "geneva" type
motion.
> Contemporary accounts speak of "great crashings and bangings and sudden
> shuddering stops" accompanied by a tool point that moves in and out, under
> cam control, to cut the various thread diameters.
>
>
>
> On Sun, Feb 7, 2016, at 04:35 PM, John Kasunich wrote:
> >
> >
> > On Sun, Feb 7, 2016, at 04:18 PM, andy pugh wrote:
> > > Maybe I should have been more explicit about the question...
> > >
> > > How do you machine an internal part-thread that ends hard against a
> shoulder?
> > >
> >
> > Very carefully :-)
> >
> > This pic
> > http://www.eugeneleeslover.com/PAGE_56_Figure_5B10_C.JPG
> > shows that there was a bit of a relief groove.  Cutting speeds in
> > those days were slower (no carbide).  They may have simply run the
> > parts slow enough that a rapid-retract toolholder could pull clear in
> > the time it took to travel the width of that groove.
> >
> >
> >
> >   John Kasunich
> >   jmkasun...@fastmail.fm
> >
> > --
> > 
> > Site24x7 APM Insight: Get Deep Visibility into Application Performance
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> --
>   John Kasunich
>   jmkasun...@fastmail.fm
>
>

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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread TJoseph Powderly

fwiw you could hre some needy nerd to do it for you
then you'd have a needy nerd resource for next problem
tomp
( im in thailand where everybody works even if its really dumb and redundant
like ticket takers ticket checkers ticket passer-backers and secondary 
ticket checkers :-)

On 02/07/2016 10:55 PM, r...@superiorroll.com wrote:
> We do need the whole pendant, I found these same ones on eBay, with a 2-3 
> week delivery. The ones we normally buy are 3-4 weeks, and cost $150 plus 
> shipping.
>
> We broke the stems off of the selector switches on one of the pendants on one 
> of our turning centers, so I stole the unit off of our machining center 
> temporarily.
>
> The selectors are pcb mounted, and I'm not near talented enough to unsolder 
> the 13 little pins out of the sockets, and solder the new ones back in.
>
> Rick
>
>
>
>  Original Message 
> Subject: Re: [Emc-users] MPG Handwheel for use with 7i73
> From: "John Thornton" 
> Date: Sun, February 7, 2016 7:45 am
> To: "Enhanced Machine Controller (EMC)" 
>
> Do you just need the MPG or a pendant? I thought AliExpress was for when
> you didn't need something in a hurry...
>
> JT
>
> On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
>> Just wondering if anyone has had a chance to look at this, all the units we 
>> already have in service have a "Line Driver" type output, this says "TTL", 
>> but they are out of stock of the ones we use, and I need one pretty quickly,
>>
>> Thanks
>>
>> Rick
>>
>>
>>  Original Message 
>> Subject: MPG Handwheel for use with 7i73
>> From: "Rick Lair" 
>> Date: Tue, February 2, 2016 2:01 pm
>> To: "Emc Users" 
>>
>> This is mainly directed at PCW, but after looking at this,
>>
>> 
>> http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0
>>
>>
>> Will this be an acceptable handwheel to use with a 7i73?
>>
>> It says
>>- Required 5V+, 150mA, power for MPG
>>- Phase output is A ,/A and B,/B;
>>- TTL output, drive capability +-20mA;
>>
>> Not sure about the "TTL" part 
>>
>>
>
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[Emc-users] Eagle mill retro fit

2016-02-07 Thread Dan Bloomquist

Hi,
I'm pretty new to all this, I knew about nothing a year ago, then my son 
needed a plasma table, and being the computer guy, we built it in my 
shop. BTW, he started up his business about 4 months ago and has done 
some amazing work so far.



In March I found an Eagle Mill on Ebay and was surprised to take the bid.



I did some work with it running with the Anilam, but it has mostly sat 
idle so far. As the days get warmer I want to convert this thing. 
Closest I could find to someone else doing this was 'Project Sheet Cake'.


 


What is different is that it their mill positions with motor encoders. 
My mill has tachs on the motors and glass scales. I haven't put a scope 
on the glass but judging from the wires, they are quadrature. I can't 
imagine how it would work if they were not. From what I can find making 
this work takes a bit of thought. It is not as simple as using motor 
encoders directly. So, my first question would be, 'has anyone here done 
a conversion like this?' I'm guessing there will be a set of Mesa boards 
that can handle this job and if someone has done this, that is what they 
used.

Thanks, Dan.

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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread Gene Heskett

On Sunday 07 February 2016 09:55:17 r...@superiorroll.com wrote:

> We do need the whole pendant, I found these same ones on eBay, with a
> 2-3 week delivery. The ones we normally buy are 3-4 weeks, and cost
> $150 plus shipping.
>
> We broke the stems off of the selector switches on one of the pendants
> on one of our turning centers, so I stole the unit off of our
> machining center temporarily.
>
> The selectors are pcb mounted, and I'm not near talented enough to
> unsolder the 13 little pins out of the sockets, and solder the new
> ones back in.
>
> Rick

Surely there is someone local to you that does do soldering?

Some do have the "knack" and some don't.

I spent 6 months trying to teach a boy/man who wanted to be my assistant 
how to solder back in the late '80's, something I've been doing in my 
sleep for about 70 years now, and failed miserably having to go back 
over everything myself.  But he is smart & creative, so he has been our 
commercial production manager/editor for the last 20 years.  Might lose 
him though, he's thrown his hat in the ring & running for County 
Assessor this time around.

I'd offer, but my hands are beginning to get a bit shaky now.
>
>  Original Message 
> Subject: Re: [Emc-users] MPG Handwheel for use with 7i73
> From: "John Thornton" 
> Date: Sun, February 7, 2016 7:45 am
> To: "Enhanced Machine Controller (EMC)"
> 
>
> Do you just need the MPG or a pendant? I thought AliExpress was for
> when you didn't need something in a hurry...
>
> JT
>
> On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
> > Just wondering if anyone has had a chance to look at this, all the
> > units we already have in service have a "Line Driver" type output,
> > this says "TTL", but they are out of stock of the ones we use, and I
> > need one pretty quickly,
> >
> > Thanks
> >
> > Rick
> >
> >
> >  Original Message 
> > Subject: MPG Handwheel for use with 7i73
> > From: "Rick Lair" 
> > Date: Tue, February 2, 2016 2:01 pm
> > To: "Emc Users" 
> >
> > This is mainly directed at PCW, but after looking at this,
> >
> >   
> > http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendan
> >t-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=
> >2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644
> >_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_1000
> >4,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449
> >tsid=3161ee1c-584a-403d-94ec-f8a52a7c24f0
> >
> >
> > Will this be an acceptable handwheel to use with a 7i73?
> >
> > It says
> >   - Required 5V+, 150mA, power for MPG
> >   - Phase output is A ,/A and B,/B;
> >   - TTL output, drive capability +-20mA;
> >
> > Not sure about the "TTL" part 
>
> --
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>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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[Emc-users] pncconf problem

2016-02-07 Thread Condit Alan

I am trying to set up a config to use a 7i43 board with pncconf. I tried to set 
up two home and limit switches (both-home-x) and (both-home-z). However, when I 
look at the hal file
I get (both-home-y) and (both-home-a).

From Hal file:
# external input signals

# --- BOTH-HOME-Y ---
net both-home-y <=  hm2_7i43.0.gpio.026.in

# --- BOTH-HOME-A ---
net both-home-a <=  hm2_7i43.0.gpio.027.in

When I try to re-edit the file in pncconf it shows (both-home-x) and 
(both-home-z). I know I can fix it be hand editing but I don’t know what else 
may be going wrong that is not so obvious.

I also tried setting up X, Y and Z and got Y, Z, and A.

Thanks,
Alan
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Re: [Emc-users] MPG Handwheel for use with 7i73

2016-02-07 Thread Dave Cole

A lot of vendors twist verbiage about what is what.
If it is TTL then it should be singled ended - ala - the voltage output 
will vary between something less than .7 volts as a low value and 
something above 3.7 volts as a high level.
The A not will simply be the inversion of the A signal, but the signal 
will still vary between something less than .7 volts and something above 
3.7 volts.
A line driver (typically described by the line driver chip that is 
emulates) is usually a bipolar signal at the output and the receiver is 
a differential amplifier.   The combo is much more noise
immune than a single ended TTL type encoder output which can easily be 
corrupted by common mode noise.The two (line driver and ttl ) are 
generally not compatible.   However there are chips that you can buy 
that will convert a TTL single ended signal to a line driver output and 
visa versa.

Dave



On 2/7/2016 9:55 AM, r...@superiorroll.com wrote:
> We do need the whole pendant, I found these same ones on eBay, with a 2-3 
> week delivery. The ones we normally buy are 3-4 weeks, and cost $150 plus 
> shipping.
>
> We broke the stems off of the selector switches on one of the pendants on one 
> of our turning centers, so I stole the unit off of our machining center 
> temporarily.
>
> The selectors are pcb mounted, and I'm not near talented enough to unsolder 
> the 13 little pins out of the sockets, and solder the new ones back in.
>
> Rick
>
>
>
>  Original Message 
> Subject: Re: [Emc-users] MPG Handwheel for use with 7i73
> From: "John Thornton" 
> Date: Sun, February 7, 2016 7:45 am
> To: "Enhanced Machine Controller (EMC)" 
>
> Do you just need the MPG or a pendant? I thought AliExpress was for when
> you didn't need something in a hurry...
>
> JT
>
> On 2/7/2016 6:28 AM, r...@superiorroll.com wrote:
>> Just wondering if anyone has had a chance to look at this, all the units we 
>> already have in service have a "Line Driver" type output, this says "TTL", 
>> but they are out of stock of the ones we use, and I need one pretty quickly,
>>
>> Thanks
>>
>> Rick
>>
>>
>>  Original Message 
>> Subject: MPG Handwheel for use with 7i73
>> From: "Rick Lair" 
>> Date: Tue, February 2, 2016 2:01 pm
>> To: "Emc Users" 
>>
>> This is mainly directed at PCW, but after looking at this,
>>
>> 
>> http://www.aliexpress.com/item/CNC-Pulse-Generator-4-Axis-MPG-Pendant-Handwheel-Emergency-Stop-for-Siemens-FAGOR-GSK/2009058806.html?spm=2114.01010208.3.1.ZvKjv2_ab_test=searchweb201556_6,searchweb201644_2_505_506_503_504_502_10014_10001_10002_10016_10005_10006_10003_10004,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_6449=3161ee1c-584a-403d-94ec-f8a52a7c24f0
>>
>>
>> Will this be an acceptable handwheel to use with a 7i73?
>>
>> It says
>>- Required 5V+, 150mA, power for MPG
>>- Phase output is A ,/A and B,/B;
>>- TTL output, drive capability +-20mA;
>>
>> Not sure about the "TTL" part 
>>
>>
>
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Re: [Emc-users] Eagle mill retro fit

2016-02-07 Thread Philipp Burch

Hi Dan!

On 07.02.2016 18:06, Dan Bloomquist wrote:
> [...]
> 
> 
> What is different is that it their mill positions with motor encoders. 
> My mill has tachs on the motors and glass scales. I haven't put a scope 
> on the glass but judging from the wires, they are quadrature. I can't 
> imagine how it would work if they were not. From what I can find making 
> this work takes a bit of thought. It is not as simple as using motor 
> encoders directly. So, my first question would be, 'has anyone here done 
> a conversion like this?' I'm guessing there will be a set of Mesa boards 
> that can handle this job and if someone has done this, that is what they 
> used.

Lacking a lot of experience, I can't tell you exactly what to do, but
I'd go for a cascaded controller loop architecture: The inner loop is
for velocity and takes feedback from the tachs, while the outer (slower)
loop controls position by means of the scale feedback. Depending on the
stiffness of the drive train (are there belts or gears between motor and
screw?), you could possibly also get away without using the tachs at
all, by simply calculating the current velocity out of the scale
feedbacks. This would then give you about the same setup as in the
SheetCake project.
Doing this should be quite straightforward, using hardware from Mesa or
from some other supplier, as long as LinuxCNC provides reasonable
support for it.

Bye,
Philipp

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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Marcus Bowman


On 7 Feb 2016, at 22:04, Ken Strauss wrote:

> There was an article in Model Engineer Magazine (British publication) on
> doing it at home. See Volume 176, Issue 4017, page 464. I have a scan of the
> article but it is too large to post.
> 
>> -Original Message-
>> From: John Kasunich [mailto:jmkasun...@fastmail.fm]
>> Sent: Sunday, February 07, 2016 4:47 PM
>> To: emc-users@lists.sourceforge.net
>> Subject: Re: [Emc-users] Any idea how they machine these?
>> 
>> A post on this page:
>> http://yarchive.net/metal/artillery_thread.html
>> 
>> says:
>> 
>> In full size practice the male and female threads are SCREWCUT (not
> Milled)
>> on specially adapted, relieving lathes with an interrupted indexing
> motion.
>> This usually takes the form of a special, heavy duty, "geneva" type
> motion.
>> Contemporary accounts speak of "great crashings and bangings and sudden
>> shuddering stops" accompanied by a tool point that moves in and out, under
>> cam control, to cut the various thread diameters.
>> 
>> 
>> 
>> On Sun, Feb 7, 2016, at 04:35 PM, John Kasunich wrote:
>>> 
>>> 
>>> On Sun, Feb 7, 2016, at 04:18 PM, andy pugh wrote:
 Maybe I should have been more explicit about the question...
 
 How do you machine an internal part-thread that ends hard against a
>> shoulder?

Easy. mount the tool upside down, and start at the blind bottom. A relief 
groove with a width of of 1 thread pitch is helpful but not absolutely 
necessary. Works a treat.
A second way is to use a thread mill (and I mean a proper thread milling 
machine) and mill the thread starting at the blind bottom. I've done it 
externally, using both methods, and internally using the single point tool, but 
there is no reason why the thread mill would not work. My own thread mill would 
probably need an extended shaft to reach inside a deep hole, and the cutter 
would need a minimum diameter of around 50mm (2inches) to get inside the hole.
Photo of my home-made thread mill here:
http://www.screwcutting.com/The%20Book/Chapters/chapter10.html

Marcus

 
>>> 
>>> Very carefully :-)
>>> 
>>> This pic
>>> http://www.eugeneleeslover.com/PAGE_56_Figure_5B10_C.JPG
>>> shows that there was a bit of a relief groove.  Cutting speeds in
>>> those days were slower (no carbide).  They may have simply run the
>>> parts slow enough that a rapid-retract toolholder could pull clear in
>>> the time it took to travel the width of that groove.
>>> 
>>> 
>>> 
>>>  John Kasunich
>>>  jmkasun...@fastmail.fm
>>> 
>>> --
>>> 
>>> Site24x7 APM Insight: Get Deep Visibility into Application Performance
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>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>> 
>> 
>> --
>>  John Kasunich
>>  jmkasun...@fastmail.fm
>> 
>> 
> 
> --
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> 
> 
> 
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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Marshland Engineering

In a shaper where the part being machined rotates. If you look closely there
is a small relief slot at the end of each thread. 


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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Stuart Stevenson

Andy,
Now I see what you are asking.
It would be educational to look at the part to see what the tooling marks
show.
You may be able to identify a pattern to know how they were cut.

On Sun, Feb 7, 2016 at 3:18 PM, andy pugh  wrote:

> Maybe I should have been more explicit about the question...
>
> How do you machine an internal part-thread that ends hard against a
> shoulder?
>
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto
>
>
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Re: [Emc-users] Any idea how they machine these?

2016-02-07 Thread Ed

On 02/07/2016 02:15 PM, andy pugh wrote:
> https://en.wikipedia.org/wiki/Welin_breech_block#/media/File:Sailor_looking_into_the_breech_of_16_inch_gun_aboard_USS_Alabama_(BB-60).jpg
>
> I suspect an extremely specialised machine for the internal version.
>
I restored a 75mm Krupp that had a similar stepped cut to the breach. 
The Krupp was not a true thread as the grooves had no lead and the 
breach block was tapered so that you did not have to retract the breach 
block after unlocking, you simply swung the block out of the way to 
eject and reload. In this case a rotary shaper would be the handiest 
tool to cut the grooves.

Ed.


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Re: [Emc-users] Eagle mill retro fit

2016-02-07 Thread Dan Bloomquist

John Thornton wrote:
> I'm not sure how close the 1400 is to my 1100M but in the right 
> cabinet is there 3 boards with a connector on top and one on the 
> bottom of each board?
>
> http://gnipsel.com/images/bp-knee-mill/bpel01.jpg
>
> That's all that's left in my cabinet is the drives and power supply.
Hi Philipp, John,
Thanks. Yes, that is all I figured I'd be left with are the H-dirvers 
and power supply. that stuff is on one panel. This is my board. Now that 
I've found this I'm thinking I should make an offer.

The boards were talked about here a couple of years ago

found this:

but these guys want $55 for 38 pdf pages!
This looks very similar

Best I can tell the tach signals come back to those boards. I have the 
box wiring diagram, but it only talks colors and not much on functions 
of wires. The boards have lots of pots and op amps so I've always 
guessed velocity feedback was done on those boards. One is labeled 
'TAC'. From the manual, (very limited info), I get a sense a specific 
velocity is expected per input signal volt. I'm starting to get an itch 
to take an oscilloscope to it while it is running some repetitive back 
and forth code. I will get as much as I can well documented before I 
disconnect the old logic. The motors do belt drive the screws at some 3 
to 1.

And I went back to re-read the Project Sheet Cake page:
" Our servo motors have two types of feedback, an analog velocity, which 
is fed back to the servo amplifiers directly..."
"The existing servo amplifiers are Anilam brand amps. TODO: Anilam part 
number here. We don't have ready specs on the amps, but since they work 
with the existing controller, they seem to be serviceable. They take in 
+/-10V for direction and speed, and they receive velocity feedback from 
the motors."

~~~

It sounds like our tasks are about identical just, that their encoders 
are shaft and mine are glass.

Best, Dan.

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Re: [Emc-users] pncconf problem

2016-02-07 Thread Condit Alan

I think that I found the problem. I believe that in inuxcnc 
/src
 
/emc
 
/usr_intf
 
/pncconf
 
/private_data.py
 the following:

home_limits_shared = [ _("All Limits + Home"),_("X Minimum Limit + Home"), _("Y 
Minimum Limit + Home"), _("Z Minimum Limit + Home"),
_("A Minimum Limit + Home"),_("X Maximum Limit + Home"), _("Y Maximum Limit + 
Home"), _("Z Maximum Limit + Home"),
_("A Maximum Limit + Home"),_("X Both Limit + Home"), _("Y Both Limit + Home"), 
_("Z Both Limit + Home"),
_("A Both Limit + Home") ]

 should be changed to 
home_limits_shared = [ _("X Minimum Limit + Home"), _("Y Minimum Limit + 
Home"), _("Z Minimum Limit + Home"),
_("A Minimum Limit + Home"),_("X Maximum Limit + Home"), _("Y Maximum Limit + 
Home"), _("Z Maximum Limit + Home"),
_("A Maximum Limit + Home"),_("X Both Limit + Home"), _("Y Both Limit + Home"), 
_("Z Both Limit + Home"),
_("A Both Limit + Home”), _("All Limits + Home") ]

I tried setting X minimum + home, and Z minimum + home and got y minimum + home 
and a minimum + home. The other data structures all have “All Limits” at the 
end of their respective arrays while “home_limits_shared” has it at the front 
of the array.

I am not a python programmer so I am not positive that this is the fix.

Alan

> From: Condit Alan 
> Subject: Re: [Emc-users] pncconf problem
> Date: February 7, 2016 at 1:54:52 PM PST
> To: emc-users 
> Reply-To: "Enhanced Machine Controller \(EMC\)" 
> 
> 
> 
> I forgot to say I am running linuxCNC version 2.7.3.
> 
> I am trying to set up a config to use a 7i43 board with pncconf. I tried to 
> set up two home and limit switches (both-home-x) and (both-home-z). However, 
> when I look at the hal file
> I get (both-home-y) and (both-home-a).
> 
> From Hal file:
> # external input signals
> 
> # --- BOTH-HOME-Y ---
> net both-home-y <=  hm2_7i43.0.gpio.026.in
> 
> # --- BOTH-HOME-A ---
> net both-home-a <=  hm2_7i43.0.gpio.027.in
> 
> When I try to re-edit the file in pncconf it shows (both-home-x) and 
> (both-home-z). I know I can fix it be hand editing but I don’t know what else 
> may be going wrong that is not so obvious.
> 
> I also tried setting up X, Y and Z and got Y, Z, and A.
> 
> Thanks,
> Alan

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Re: [Emc-users] ZAY7045FG Retrofit CNC

2016-02-07 Thread John Dammeyer

It's always good to see photos as a machine is converted to CNC.
John Dammeyer

> -Original Message-
> From: Marshland Engineering [mailto:marshl...@marshland.co.nz]
> Sent: February-07-16 1:17 PM
> To: emc-users@lists.sourceforge.net
> Subject: [Emc-users] ZAY7045FG Retrofit CNC
> 
> 
> I'm busy retrofitting a ZAY7045 mill with CNC control. Is anyone
interested in
> the progress with photos ?
> 
> http://s93480190.onlinehome.us/zay/zay7045fg.bmp
> 
> Cheers Wallace
> 
> 
>

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Re: [Emc-users] ZAY7045FG Retrofit CNC

Re: [Emc-users] MPG Handwheel for use with 7i73

Re: [Emc-users] MPG Handwheel for use with 7i73

Re: [Emc-users] MPG Handwheel for use with 7i73

Re: [Emc-users] MPG Handwheel for use with 7i73

Re: [Emc-users] Any idea how they machine these?

[Emc-users] ZAY7045FG Retrofit CNC

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Eagle mill retro fit

Re: [Emc-users] Any idea how they machine these?

[Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] ZAY7045FG Retrofit CNC

Re: [Emc-users] pncconf problem

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] MPG Handwheel for use with 7i73

[Emc-users] Eagle mill retro fit

Re: [Emc-users] MPG Handwheel for use with 7i73

[Emc-users] pncconf problem

Re: [Emc-users] MPG Handwheel for use with 7i73

Re: [Emc-users] Eagle mill retro fit

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Any idea how they machine these?

Re: [Emc-users] Eagle mill retro fit

Re: [Emc-users] pncconf problem

Re: [Emc-users] ZAY7045FG Retrofit CNC

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