Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-03-02 Thread Ken Strauss
Fortunately my probe came with a nice Installation/User Guide that includes
dimensioned drawings, recommended torque on all screws, etc, etc. I've
removed my probe from the CAT40 mount so my first project is to make a TTS
sized mount so that I can actually spin it.

> -Original Message-
> From: Jon Elson [mailto:el...@pico-systems.com]
> Sent: Thursday, March 02, 2017 12:13 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> On 03/02/2017 08:14 AM, Chris Radek wrote:
> > On Wed, Mar 01, 2017 at 01:44:34PM -0500, Ken Strauss wrote:
> >> I recently got a Renishaw MP7 IR probe from eBay. Has there been any
> >> further success with reverse engineering the interface? According to
> >> the manual that came with my probe it is turned on/off by briefly
> >> spinning it at 500 rpm to actuate an internal centrifugal switch. It
> >> uses a standard 9v battery. The recommended interface box is an MI7 +
> >> OMM. There are reasonably priced MI7 on eBay but the OMM listing are
> about $1000!
> > Weird - I'm pretty sure mine is a MP7, and it is turned on and off
> > with a signal over the IR.  I have the OMM+MI7 interface.
> >
> > Of course to receive the signal, some part of it has to be alive all
> > the time, but it isn't sending and the battery lasts a good while.
> >
> > I have never spun it.  The very idea makes me shiver.
> >
> >
> 500 RPM doesn't sound too dangerous, but have the machine in the wrong
> gear, and "OOPS!"
> Yeah, that was the hardest thing to figure out on the Blum probe, how to
turn
> it on
> I also expected there'd be a turn on code and a turn off code, but as far
as I
> could tell, it takes a burst of pulses at a particular rate for about 1/4
second to
> toggle it from on to off.  Once I got it turned on, the data pattern was
pretty
> obvious.
>
> One thing you want to do is detect loss of data from the probe, and set
feed
> hold.
>
> Jon
>
>

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-03-02 Thread Jon Elson
On 03/02/2017 08:14 AM, Chris Radek wrote:
> On Wed, Mar 01, 2017 at 01:44:34PM -0500, Ken Strauss wrote:
>> I recently got a Renishaw MP7 IR probe from eBay. Has there been any further
>> success with reverse engineering the interface? According to the manual that
>> came with my probe it is turned on/off by briefly spinning it at 500 rpm to
>> actuate an internal centrifugal switch. It uses a standard 9v battery. The
>> recommended interface box is an MI7 + OMM. There are reasonably priced MI7
>> on eBay but the OMM listing are about $1000!
> Weird - I'm pretty sure mine is a MP7, and it is turned on and off
> with a signal over the IR.  I have the OMM+MI7 interface.
>
> Of course to receive the signal, some part of it has to be alive all
> the time, but it isn't sending and the battery lasts a good while.
>
> I have never spun it.  The very idea makes me shiver.
>
>
500 RPM doesn't sound too dangerous, but have the machine in 
the wrong gear, and "OOPS!"
Yeah, that was the hardest thing to figure out on the Blum 
probe, how to turn it on
I also expected there'd be a turn on code and a turn off 
code, but as far as I could tell, it takes a burst of pulses 
at a particular rate for about 1/4 second to toggle it from 
on to off.  Once I got it turned on, the data pattern was 
pretty obvious.

One thing you want to do is detect loss of data from the 
probe, and set feed hold.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-03-02 Thread Chris Radek
On Wed, Mar 01, 2017 at 01:44:34PM -0500, Ken Strauss wrote:
> I recently got a Renishaw MP7 IR probe from eBay. Has there been any further
> success with reverse engineering the interface? According to the manual that
> came with my probe it is turned on/off by briefly spinning it at 500 rpm to
> actuate an internal centrifugal switch. It uses a standard 9v battery. The
> recommended interface box is an MI7 + OMM. There are reasonably priced MI7
> on eBay but the OMM listing are about $1000!

Weird - I'm pretty sure mine is a MP7, and it is turned on and off
with a signal over the IR.  I have the OMM+MI7 interface.

Of course to receive the signal, some part of it has to be alive all
the time, but it isn't sending and the battery lasts a good while.

I have never spun it.  The very idea makes me shiver.

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-03-01 Thread Jon Elson
On 03/01/2017 12:44 PM, Ken Strauss wrote:
> I recently got a Renishaw MP7 IR probe from eBay. Has there been any further
> success with reverse engineering the interface? According to the manual that
> came with my probe it is turned on/off by briefly spinning it at 500 rpm to
> actuate an internal centrifugal switch. It uses a standard 9v battery. The
> recommended interface box is an MI7 + OMM. There are reasonably priced MI7
> on eBay but the OMM listing are about $1000!
>
>
My Blum probe is toggled on/off by a burst of IR pulses, and 
then sends essentially an 8-bit async character with the 
state bits.  So, pretty different, it seems.  Blum offered 
no info on how it all works, so I had to reverse engineer it 
all.
It really wasn't all that hard to do, once I zapped it with 
some IR and got it to turn on.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-03-01 Thread Ken Strauss
I recently got a Renishaw MP7 IR probe from eBay. Has there been any further
success with reverse engineering the interface? According to the manual that
came with my probe it is turned on/off by briefly spinning it at 500 rpm to
actuate an internal centrifugal switch. It uses a standard 9v battery. The
recommended interface box is an MI7 + OMM. There are reasonably priced MI7
on eBay but the OMM listing are about $1000!

> -Original Message-
> From: Sarah Armstrong [mailto:sarahj.armstron...@gmail.com]
> Sent: Thursday, September 29, 2016 7:50 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> i'm looking at a renishaw MP10 IR probe
> iv'e posted some snipps of what i am , ( or better think i am ) getting as
an
> output
>
> https://www.dropbox.com/sh/kwjxef6k4ptbhhb/AABdCLSjzypH574XoXJv_it3a?
> dl=0
>
> it looks to me all it's doing is giving a constant mark space ratio , and
stopping
> on a probe hit  , surely it cant be that simple , or could it i must admit
at this
> point , i have not dug anydeeper as yet , or really looked to see if i can
find any
> data , but it's very obvious everything stops on a hit
>
> i was expecting some data or id and say battery condition , but just early
days
> found i had a better signal using a 1838 ir that a qse159 but i may need
some
> better signal conditioning at the moment
>
>
>
>
> On 28 September 2016 at 02:01, Gene Heskett <ghesk...@shentel.net> wrote:
>
> > On Tuesday 27 September 2016 13:19:49 Jon Elson wrote:
> >
> > > On 09/27/2016 10:36 AM, Gene Heskett wrote:
> > > > On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
> > > >> The discussion has been regarding the optically coupled probe.
> > > >> Has anyone had success with the inductively coupled ones? Is it
> > > >> feasible to make your own IMM module?
> > > >
> > > > I'd have to say you could, but these machines are generators of a
> > > > large amount of magnetic noise. So I'd say not magnetically
> > > > coupled, but radio coupled just to get above the frequency of the
> > > > machines own noises.
> > >
> > > Yes, it seems Blum and Renishaw have moved to RF communication, and
> > > seem to be in the 800 MHz to GHz bands!
> > > I guess the problem is no matter where you put the IR transceiver,
> > > somebody would end up putting an obstruction in the way, and then
> > > you break the probe tip. I did rig the loss of signal watchdog to
> > > stop the machine, and it seems like a really good idea.
> > >
> > > Jon
> > >
> > We are in what I've been known to call violent agreement on that point
> > Jon. I recall now, about 2 years back, Dee  buzzed me on the intercom
> > thats part of our basket of wireless phones here, in a total panic,
> > wanted fresh batteries in the remote as she was missing one of her fav
> > game shows.  On my arrival with a pocketfull of batteries, the first
> > thing I noticed was she had set something in front of the tv's IR
> > window.  I reached over and handed it back to her & told her to try it
> > again.  Of course it worked, much to her amazement, it had never been
> > grokked that if she couldn't see that window, she didn't have a remote.
> > OTOH, she had cataracts removed from both eyes since, and its entirely
> > possible she could not see that little black square in the bottom of
> > the black face frame.  She sure can now.
> > >
> > >
> > >
> > >-
> > >-
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> > 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 <http://geneslinuxbox.net:6309/gene>
> >
> > 
> > --
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> >
>
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-02-15 Thread Gene Heskett
On Wednesday 15 February 2017 22:41:55 Jon Elson wrote:

> Well, took QUITE a while, but I now have the Blum TC50 touch
> probe set up on my Bridgeport.
> (This is the one that I had at the Wichita code fest.)  I
> now have the interface in a box mounted on the mill, and
> made a few mods to that.  When I had it in Wichita, there
> was a switch to allow the machine to move when the probe was
> not installed.  it was possible to defeat the probe safety
> and thereby break the probe tip.  Now, I have a probe on
> button and a probe off button.  When you press probe off, it
> turns the probe off and allows the machine to move.  When
> you press probe on, it turns the probe on and if the IR
> receiver is not getting a valid signal from the probe, it
> asserts motion.feed-hold to stop the machine.  If you press
> probe on when you install the probe in the spindle, it
> pretty much protects you from breaking the probe.
>
> One little oddity I noticed was that if the probe is tripped
> when you start a jog move, LinuxCNC doesn't complain like it
> would when the probe trips DURING a jog move.  Well, that
> makes sense as if you interrupt a probe routine, you may
> need to jog off the probe.  But, it means you need to be
> careful!
>
> Jon
>
That little gotcha has caused me to smash a couple tools, after they were 
pressed/smashed into the pcb board I was using for contact materiel.  
Turns the air a little blue too.

I made the Sheldon run a bit smoother tonight, I discovered I can't count 
zero's worth a toot, so the servo-thread I thought I had running at 2 
kilohertz, was actually running at 200 Hz. No wonder the watchdog was 
biteing.

Fooling around with the spindle, I  noticed I had never cut the slot in 
the lock ring that was supposed to grab the backplate hub, took the 
chuck off to finish that minor detail, then when re-installing it, I 
could see a teeny teeny wobble at the backplate/chuck contact.  So I 
finally got brave and removed the chuck's 3 mounting bolts.  Putting a 
dial on the face of the plate, it was a mess, nowhere near flat by 
nearly 10 thou!  So I rustled up a tool, cut most of the dirt off the 
outside of the ledge (should have taken off another 2 thou, see below) 
then brought it to the outside edge & drove it toward the spindle until 
it had left a clean cut all the way around, then drove it all the way to 
the ledge. When I started, a .5" rod had about .0075" runout. Put it 
back together, put the dial back on to check runout with the bolts just 
finger tight, found the high spot of about 6 thou, tapped it with a 
deadblow hammer, no change. Hit it harder. Wash, rinse repeat, 4th heavy 
hit it finally moved, and 7 thou turned into 2.5 thou, but at that point 
I was either out of bolthole clearance or ledge clearance. Next time I 
have it apart I'll take another 2 off the ledge.

I'd gone out to put a home switch on X. But I'm easily distracted so its 
still laying on the mills keyboard table. :)

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Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2017-02-15 Thread Jon Elson
Well, took QUITE a while, but I now have the Blum TC50 touch 
probe set up on my Bridgeport.
(This is the one that I had at the Wichita code fest.)  I 
now have the interface in a box mounted on the mill, and 
made a few mods to that.  When I had it in Wichita, there 
was a switch to allow the machine to move when the probe was 
not installed.  it was possible to defeat the probe safety 
and thereby break the probe tip.  Now, I have a probe on 
button and a probe off button.  When you press probe off, it 
turns the probe off and allows the machine to move.  When 
you press probe on, it turns the probe on and if the IR 
receiver is not getting a valid signal from the probe, it 
asserts motion.feed-hold to stop the machine.  If you press 
probe on when you install the probe in the spindle, it 
pretty much protects you from breaking the probe.

One little oddity I noticed was that if the probe is tripped 
when you start a jog move, LinuxCNC doesn't complain like it 
would when the probe trips DURING a jog move.  Well, that 
makes sense as if you interrupt a probe routine, you may 
need to jog off the probe.  But, it means you need to be 
careful!

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-29 Thread Gene Heskett
On Thursday 29 September 2016 07:50:23 Sarah Armstrong wrote:

> i'm looking at a renishaw MP10 IR probe
> iv'e posted some snipps of what i am , ( or better think i am )
> getting as an output
>
> https://www.dropbox.com/sh/kwjxef6k4ptbhhb/AABdCLSjzypH574XoXJv_it3a?d
>l=0
>
> it looks to me all it's doing is giving a constant mark space ratio ,
> and stopping on a probe hit  , surely it cant be that simple , or
> could it i must admit at this point , i have not dug anydeeper as yet
> , or really looked to see if i can find any data , but it's very
> obvious everything stops on a hit
>
> i was expecting some data or id and say battery condition , but just
> early days
> found i had a better signal using a 1838 ir that a qse159 but i may
> need some better signal conditioning at the moment
>
What I can see in the scope shots looks pretty clean. All you'd need is 
to run it thru a comparator to make a rail to rail digital signal out of 
that if its not already.

If there was a timebase setting visible in the scope shots, I missed it. 
That would determine how fast you should be moving to achieve the 
accuracy needed.

Detection of the hit should probably be done with a re-triggerable one 
shot (the cmos 7555 comes to mind, batteries last till the rapture) 
whose timeout period is set for about 5% longer than the period between 
pulses, so the one shot would time out quickly after the first missing 
pulse, using that as the hit indicator. I would, on the off chance it 
puts out a last pulse at the hit point, probably longer, independent of 
the pulse train timing which might only be used as a keep alive.  So the 
scope trace should be looked at very carefully at the point where it 
stops, with an eye toward detecting only that unique pulse as the hit 
pulse.

But I suspect you knew that already. :)

[...] 

Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-29 Thread Sarah Armstrong
i'm looking at a renishaw MP10 IR probe
iv'e posted some snipps of what i am , ( or better think i am ) getting as
an output

https://www.dropbox.com/sh/kwjxef6k4ptbhhb/AABdCLSjzypH574XoXJv_it3a?dl=0

it looks to me all it's doing is giving a constant mark space ratio , and
stopping on a probe hit  , surely it cant be that simple , or could it
i must admit at this point , i have not dug anydeeper as yet , or really
looked to see if i can find any data , but it's very obvious everything
stops on a hit

i was expecting some data or id and say battery condition , but just early
days
found i had a better signal using a 1838 ir that a qse159 but i may need
some better signal conditioning at the moment




On 28 September 2016 at 02:01, Gene Heskett  wrote:

> On Tuesday 27 September 2016 13:19:49 Jon Elson wrote:
>
> > On 09/27/2016 10:36 AM, Gene Heskett wrote:
> > > On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
> > >> The discussion has been regarding the optically coupled probe. Has
> > >> anyone had success with the inductively coupled ones? Is it
> > >> feasible to make your own IMM module?
> > >
> > > I'd have to say you could, but these machines are generators of a
> > > large amount of magnetic noise. So I'd say not magnetically coupled,
> > > but radio coupled just to get above the frequency of the machines
> > > own noises.
> >
> > Yes, it seems Blum and Renishaw have moved to RF
> > communication, and seem to be in the 800 MHz to GHz bands!
> > I guess the problem is no matter where you put the IR
> > transceiver, somebody would end up putting an obstruction in
> > the way, and then you break the probe tip. I did rig the
> > loss of signal watchdog to stop the machine, and it seems
> > like a really good idea.
> >
> > Jon
> >
> We are in what I've been known to call violent agreement on that point
> Jon. I recall now, about 2 years back, Dee  buzzed me on the intercom
> thats part of our basket of wireless phones here, in a total panic,
> wanted fresh batteries in the remote as she was missing one of her fav
> game shows.  On my arrival with a pocketfull of batteries, the first
> thing I noticed was she had set something in front of the tv's IR
> window.  I reached over and handed it back to her & told her to try it
> again.  Of course it worked, much to her amazement, it had never been
> grokked that if she couldn't see that window, she didn't have a remote.
> OTOH, she had cataracts removed from both eyes since, and its entirely
> possible she could not see that little black square in the bottom of the
> black face frame.  She sure can now.
> >
> >
> > --
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> 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 
>
> 
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>



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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Gene Heskett
On Tuesday 27 September 2016 13:19:49 Jon Elson wrote:

> On 09/27/2016 10:36 AM, Gene Heskett wrote:
> > On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
> >> The discussion has been regarding the optically coupled probe. Has
> >> anyone had success with the inductively coupled ones? Is it
> >> feasible to make your own IMM module?
> >
> > I'd have to say you could, but these machines are generators of a
> > large amount of magnetic noise. So I'd say not magnetically coupled,
> > but radio coupled just to get above the frequency of the machines
> > own noises.
>
> Yes, it seems Blum and Renishaw have moved to RF
> communication, and seem to be in the 800 MHz to GHz bands!
> I guess the problem is no matter where you put the IR
> transceiver, somebody would end up putting an obstruction in
> the way, and then you break the probe tip. I did rig the
> loss of signal watchdog to stop the machine, and it seems
> like a really good idea.
>
> Jon
>
We are in what I've been known to call violent agreement on that point 
Jon. I recall now, about 2 years back, Dee  buzzed me on the intercom 
thats part of our basket of wireless phones here, in a total panic, 
wanted fresh batteries in the remote as she was missing one of her fav 
game shows.  On my arrival with a pocketfull of batteries, the first 
thing I noticed was she had set something in front of the tv's IR 
window.  I reached over and handed it back to her & told her to try it 
again.  Of course it worked, much to her amazement, it had never been 
grokked that if she couldn't see that window, she didn't have a remote.  
OTOH, she had cataracts removed from both eyes since, and its entirely 
possible she could not see that little black square in the bottom of the 
black face frame.  She sure can now.
>
>
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
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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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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Ken Strauss
Hmmm. That is exactly the same scheme used many years ago with the centrifugal 
governor to control a DC motor on an Arriflex movie camera. When the motor ran 
above the set speed the contacts shorted a coil on the rotating assembly which 
in turn reduced the power to the motor.

> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: Tuesday, September 27, 2016 2:49 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> On 27 September 2016 at 19:09, Ken Strauss <ken.stra...@sympatico.ca>
> wrote:
>
> > I have no idea if this is the actual scheme used with the MP3.
>
>
> The MP3 is much simpler. There is a coil (possibly with a ferrite core) that 
> is
> completed by the probe contacts.
> That is in resonance with the detector when the probe contacts are closed, 
> and
> not when they are not.
>
> I assume there is the rest of an LC bridge circuit in the transmitter, an 
> oscillator,
> precision (op-amp) rectifier and level detector.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed for
> the especial use of mechanical geniuses, daredevils and lunatics."
> - George Fitch, Atlanta Constitution Newspaper, 1916
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread andy pugh
On 27 September 2016 at 19:09, Ken Strauss  wrote:

> I have no idea if this is the actual scheme used with the MP3.


The MP3 is much simpler. There is a coil (possibly with a ferrite core)
that is completed by the probe contacts.
That is in resonance with the detector when the probe contacts are closed,
and not when they are not.

I assume there is the rest of an LC bridge circuit in the transmitter, an
oscillator, precision (op-amp) rectifier and level detector.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Ken Strauss
What was the source for your connector? The cord halves are on eBay but what 
about the chassis piece?
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: Tuesday, September 27, 2016 1:41 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> On 27 September 2016 at 18:30, Sarah Armstrong
> <sarahj.armstron...@gmail.com
> > wrote:
>
> > I,m contemplating modifying mine to 2.4ghz and then implementing my
> > own protocol,
>
>
> I just converted mine to a "magsafe"  style connection. (in case I turned 
> the
> spindle on by mistake)
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed for
> the especial use of mechanical geniuses, daredevils and lunatics."
> - George Fitch, Atlanta Constitution Newspaper, 1916
> --
> ___
> Emc-users mailing list
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Ken Strauss
A major advantage of the inductively coupled probes is that there is no need
for a battery in the probe.  Also, there is no possible interference from
other probes in the same shop (not a problem here!). The real driver for me
is that they appear to be considerably more common on the used market than
either the direct connect or the optically coupled flavours. The bad news is
that an IMM plus MI5 interface unit costs more than a probe. I don't know
what they do in the MP3 with IMM but WO 1995007521 A1 issued to Renishaw in
1995 describes a little of one system:
Power is transmitted from the interface to the probe in the form of a 60kHz
carrier. Data from the probe back to the interface is transmitted in a data
band extending from approximately 500kHz to 5MHz. Commands are transmitted
in a command band which is narrower than the data band and is centred around
a 210kHz carrier.

I have no idea if this is the actual scheme used with the MP3.
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: Tuesday, September 27, 2016 11:37 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
>
> > The discussion has been regarding the optically coupled probe. Has
> > anyone had success with the inductively coupled ones? Is it feasible
> > to make your own IMM module?
>
> I'd have to say you could, but these machines are generators of a large
amount
> of magnetic noise. So I'd say not magnetically coupled, but radio coupled
just to
> get above the frequency of the machines own noises. I'd have to assume
> something that used a very high carrier frequency just to get above all
the
> harmonics of the pwm and stepper pulsing noises. Any great amount of power
> would require it be put, frequency-wise, is some band the fcc or whatever
> control agency is governing your locale, has allocated for that.  That
wants to
> point at bluetooth.  Bluetooth stuff has a range of 10 feet or so, but
thats so
> noisy it would require you to invent your own protocol just so nearby
computer
> mice and keyboards wouldn't have the right checksums of their packets to
> register.  But it is by now a well developed, cheap technology.  And I've
no clue
> what the latency would be, but quite likely much more than a direct
electrical
> contact would have.
>
> I debounce 2 servo cycles, so thats a 3 millisecond lag worst case which
means I
> double touch, the second at low feed speed.
>
> 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 <http://geneslinuxbox.net:6309/gene>
>
>

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Bengt Sjölund
Anybody interested, I have one Renishaw MI 14 MK3  for sale/trade. 
Condition unknown, was included in a package deal years ago.
Labeled: This a MK3 MI 14 use only with a MK3 RMP

Located in Sweden

Cheers
Bengt


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Jim Craig
I have used xbee modules before for wireless point to point 
communication. Works well and pretty simple to use.

http://www.digikey.com/product-detail/en/XB24-AWI-001/XB24-AWI-001-ND/935965?WT.mc_id=IQ_7595_G_pla935965=1=cpc=1=Cj0KEQjwsai_BRC30KH347fjksoBEiQAoiaqsYm-WHZ4nBp_CZFsky8FzKPdtgjM_CXUeXLqlWbNCqMaAsF68P8HAQ

On 9/27/2016 12:30 PM, Sarah Armstrong wrote:
> I,m contemplating modifying mine to 2.4ghz and then implementing my own 
> protocol, I've got some code already that has infra red to WiFi out, so that 
> might do as the catalyst starter code and make a new pcb for the probe and 
> just do away with all the infrared.
>
> Sent from BlueMail
>
>
>
> On 27 Sep 2016, 18:25, at 18:25, Jon Elson  wrote:
>> On 09/27/2016 10:36 AM, Gene Heskett wrote:
>>> On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
>>>
 The discussion has been regarding the optically coupled probe. Has
 anyone had success with the inductively coupled ones? Is it feasible
 to make your own IMM module?
>>> I'd have to say you could, but these machines are generators of a
>> large
>>> amount of magnetic noise. So I'd say not magnetically coupled, but
>> radio
>>> coupled just to get above the frequency of the machines own noises.
>> Yes, it seems Blum and Renishaw have moved to RF
>> communication, and seem to be in the 800 MHz to GHz bands!
>> I guess the problem is no matter where you put the IR
>> transceiver, somebody would end up putting an obstruction in
>> the way, and then you break the probe tip. I did rig the
>> loss of signal watchdog to stop the machine, and it seems
>> like a really good idea.
>>
>> Jon
>>
>>
>>
>> --
>> ___
>> Emc-users mailing list
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread andy pugh
On 27 September 2016 at 18:30, Sarah Armstrong  wrote:

> I,m contemplating modifying mine to 2.4ghz and then implementing my own
> protocol,


I just converted mine to a "magsafe"  style connection. (in case I turned
the spindle on by mistake)

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Sarah Armstrong
I,m contemplating modifying mine to 2.4ghz and then implementing my own 
protocol, I've got some code already that has infra red to WiFi out, so that 
might do as the catalyst starter code and make a new pcb for the probe and just 
do away with all the infrared.

Sent from BlueMail



On 27 Sep 2016, 18:25, at 18:25, Jon Elson  wrote:
>On 09/27/2016 10:36 AM, Gene Heskett wrote:
>> On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
>>
>>> The discussion has been regarding the optically coupled probe. Has
>>> anyone had success with the inductively coupled ones? Is it feasible
>>> to make your own IMM module?
>> I'd have to say you could, but these machines are generators of a
>large
>> amount of magnetic noise. So I'd say not magnetically coupled, but
>radio
>> coupled just to get above the frequency of the machines own noises.
>Yes, it seems Blum and Renishaw have moved to RF 
>communication, and seem to be in the 800 MHz to GHz bands!  
>I guess the problem is no matter where you put the IR 
>transceiver, somebody would end up putting an obstruction in 
>the way, and then you break the probe tip. I did rig the 
>loss of signal watchdog to stop the machine, and it seems 
>like a really good idea.
>
>Jon
>
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Jon Elson
On 09/27/2016 10:36 AM, Gene Heskett wrote:
> On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:
>
>> The discussion has been regarding the optically coupled probe. Has
>> anyone had success with the inductively coupled ones? Is it feasible
>> to make your own IMM module?
> I'd have to say you could, but these machines are generators of a large
> amount of magnetic noise. So I'd say not magnetically coupled, but radio
> coupled just to get above the frequency of the machines own noises.
Yes, it seems Blum and Renishaw have moved to RF 
communication, and seem to be in the 800 MHz to GHz bands!  
I guess the problem is no matter where you put the IR 
transceiver, somebody would end up putting an obstruction in 
the way, and then you break the probe tip. I did rig the 
loss of signal watchdog to stop the machine, and it seems 
like a really good idea.

Jon



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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Gene Heskett
On Tuesday 27 September 2016 09:29:47 Ken Strauss wrote:

> The discussion has been regarding the optically coupled probe. Has
> anyone had success with the inductively coupled ones? Is it feasible
> to make your own IMM module?

I'd have to say you could, but these machines are generators of a large 
amount of magnetic noise. So I'd say not magnetically coupled, but radio 
coupled just to get above the frequency of the machines own noises. I'd 
have to assume something that used a very high carrier frequency just to 
get above all the harmonics of the pwm and stepper pulsing noises. Any 
great amount of power would require it be put, frequency-wise, is some 
band the fcc or whatever control agency is governing your locale, has 
allocated for that.  That wants to point at bluetooth.  Bluetooth stuff 
has a range of 10 feet or so, but thats so noisy it would require you to 
invent your own protocol just so nearby computer mice and keyboards 
wouldn't have the right checksums of their packets to register.  But it 
is by now a well developed, cheap technology.  And I've no clue what the 
latency would be, but quite likely much more than a direct electrical 
contact would have.

I debounce 2 servo cycles, so thats a 3 millisecond lag worst case which 
means I double touch, the second at low feed speed.

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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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-27 Thread Ken Strauss
The discussion has been regarding the optically coupled probe. Has anyone
had success with the inductively coupled ones? Is it feasible to make your
own IMM module?
> -Original Message-
> From: hubert [mailto:h...@hbahr.org]
> Sent: Sunday, September 25, 2016 12:31 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> I've also ordered some of the QSE159s plus some of the recommended LED's
to
> go with them.  My probe is due in tomorrow but the testing will have to
wait
> since it appears my new SkyFire LinuxCNC machine has turned into a kit
instead
> of ready to run.  I miss measured my Door opening to my shop.  This Mill
will
> not go in fully assembled, so it has to be taken apart and reassembled
once the
> pieces have been moved into my shop.  Not quite as much labor as
retrofitting
> a manual mill, but it will definitely get me close and personal to all the
> components.
>
>
> On 9/25/16 7:48 AM, Ken Strauss wrote:
> > I believe that Jon Elson suggested the QSE159. Digikey has it in stock
> > for about $1.50. It includes a Schmidt trigger for noise immunity and
> > the datasheet doesn't mention anything about bandpass filtering.
> >
> >
> >> -Original Message-
> >> From: Sarah Armstrong [mailto:sarahj.armstron...@gmail.com]
> >> Sent: Sunday, September 25, 2016 8:24 AM
> >> To: Enhanced Machine Controller (EMC)
> >> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
> >> how to interface ?
> >>
> >> anyone suggest a better infra red detector than the AX-1838HS
> >>
> >> as i see it's band pass is just about centered on 38Khz , and if i am
> > correct these
> >> probes are around 100 - 150Khz so i'll need something better , iv'e
> >> not
> > done
> >> much with Infra-red , so if you parden the pun , i'm in the dark ! lol
"
> >>
> >> iv'e found a remote in the house that actually activates the probe ,
> >> and
> > starts it
> >> . so thats something close . but i'm wondering if just about any
> >> sender
> > would
> >> do it , as it's working on a carrier rather than code
> >>
> >>
> >>
> >>
> >> On 23 September 2016 at 13:07, Ken Strauss <ken.stra...@sympatico.ca>
> >> wrote:
> >>
> >>> Looking at the drawing that Sarah was kind enough to supply, the
> >>> Renishaw
> >>> MP10
> >>> is about 5 inches plus the probe. That wouldn't be too bad to fit on
> >>> my Tormach 770 which is a mid-sized hobby machine.
> >>>
> >>>> -Original Message-
> >>>> From: andy pugh [mailto:bodge...@gmail.com]
> >>>> Sent: Thursday, September 22, 2016 12:49 PM
> >>>> To: Enhanced Machine Controller (EMC)
> >>>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
> >>>> how
> >>> to
> >>>> interface ?
> >>>>
> >>>> On 22 September 2016 at 16:02, Ken Strauss
> >>>> <ken.stra...@sympatico.ca>
> >>>> wrote:
> >>>>
> >>>>> I've never handled a MP3 so...
> >>>>> Most of the MP3 probes listed on eBay include a CAT40 or CAT50
> > taper.
> >>>>> Is this easily removable? If removable what is the native shank
> >>>>> for a MP3?
> >>>>>
> >>>> Yes. The probe mounts to the shank with 4 screws and then a ball in
> >>>> the probe fits in a hole in the shank. The screws don't pull up
> >>>> tight, you adjust
> >>> them
> >>>> like a
> >>>> 4-jaw chuck to centre the probe tip.
> >>>>
> >>>> I used a BT30 boring-bar adaptor (they are cheaper than metal from
> >>>> eBay)
> >>> and
> >>>> fitted a adaptor to increase the diameter enough for the screws:
> >>>> https://goo.gl/photos/sRDrZbNsnT3z1tuN9
> >>>>
> >>>> The MP3 is not a particularly small probe. If you have a tiny
> >>>> machine
> >>> then
> >>>> you
> >>>> might want something littler.
> >>>>
> >>>>
> >>>> --
> >>>> atp
> >>>> "A motorcycle is a bicycle with a pandemonium attachment and is
> >>>> designed
> >>> for
> >>>> the especial use of mechanical geni

Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-25 Thread hubert
I've also ordered some of the QSE159s plus some of the recommended LED's 
to go with them.  My probe is due in tomorrow but the testing will have 
to wait since it appears my new SkyFire LinuxCNC machine has turned into 
a kit instead of ready to run.  I miss measured my Door opening to my 
shop.  This Mill will not go in fully assembled, so it has to be taken 
apart and reassembled once the pieces have been moved into my shop.  Not 
quite as much labor as retrofitting a manual mill, but it will 
definitely get me close and personal to all the components.


On 9/25/16 7:48 AM, Ken Strauss wrote:
> I believe that Jon Elson suggested the QSE159. Digikey has it in stock for
> about $1.50. It includes a Schmidt trigger for noise immunity and the
> datasheet doesn't mention anything about bandpass filtering.
>
>
>> -Original Message-
>> From: Sarah Armstrong [mailto:sarahj.armstron...@gmail.com]
>> Sent: Sunday, September 25, 2016 8:24 AM
>> To: Enhanced Machine Controller (EMC)
>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
>> interface ?
>>
>> anyone suggest a better infra red detector than the AX-1838HS
>>
>> as i see it's band pass is just about centered on 38Khz , and if i am
> correct these
>> probes are around 100 - 150Khz so i'll need something better , iv'e not
> done
>> much with Infra-red , so if you parden the pun , i'm in the dark ! lol "
>>
>> iv'e found a remote in the house that actually activates the probe , and
> starts it
>> . so thats something close . but i'm wondering if just about any sender
> would
>> do it , as it's working on a carrier rather than code
>>
>>
>>
>>
>> On 23 September 2016 at 13:07, Ken Strauss <ken.stra...@sympatico.ca>
>> wrote:
>>
>>> Looking at the drawing that Sarah was kind enough to supply, the
>>> Renishaw
>>> MP10
>>> is about 5 inches plus the probe. That wouldn't be too bad to fit on
>>> my Tormach 770 which is a mid-sized hobby machine.
>>>
>>>> -Original Message-
>>>> From: andy pugh [mailto:bodge...@gmail.com]
>>>> Sent: Thursday, September 22, 2016 12:49 PM
>>>> To: Enhanced Machine Controller (EMC)
>>>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
>>>> how
>>> to
>>>> interface ?
>>>>
>>>> On 22 September 2016 at 16:02, Ken Strauss
>>>> <ken.stra...@sympatico.ca>
>>>> wrote:
>>>>
>>>>> I've never handled a MP3 so...
>>>>> Most of the MP3 probes listed on eBay include a CAT40 or CAT50
> taper.
>>>>> Is this easily removable? If removable what is the native shank
>>>>> for a MP3?
>>>>>
>>>> Yes. The probe mounts to the shank with 4 screws and then a ball in
>>>> the probe fits in a hole in the shank. The screws don't pull up
>>>> tight, you adjust
>>> them
>>>> like a
>>>> 4-jaw chuck to centre the probe tip.
>>>>
>>>> I used a BT30 boring-bar adaptor (they are cheaper than metal from
>>>> eBay)
>>> and
>>>> fitted a adaptor to increase the diameter enough for the screws:
>>>> https://goo.gl/photos/sRDrZbNsnT3z1tuN9
>>>>
>>>> The MP3 is not a particularly small probe. If you have a tiny
>>>> machine
>>> then
>>>> you
>>>> might want something littler.
>>>>
>>>>
>>>> --
>>>> atp
>>>> "A motorcycle is a bicycle with a pandemonium attachment and is
>>>> designed
>>> for
>>>> the especial use of mechanical geniuses, daredevils and lunatics."
>>>> - George Fitch, Atlanta Constitution Newspaper, 1916
>>>> 
>>> --
>>>> ___
>>>> Emc-users mailing list
>>>> Emc-users@lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>>
>>> 
>>> --
>>> ___
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>
>>
>> --
>>
>> The information contained in this message is confidential and is intended
> for
>> t

Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-25 Thread Ken Strauss
I believe that Jon Elson suggested the QSE159. Digikey has it in stock for
about $1.50. It includes a Schmidt trigger for noise immunity and the
datasheet doesn't mention anything about bandpass filtering.


> -Original Message-
> From: Sarah Armstrong [mailto:sarahj.armstron...@gmail.com]
> Sent: Sunday, September 25, 2016 8:24 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> anyone suggest a better infra red detector than the AX-1838HS
>
> as i see it's band pass is just about centered on 38Khz , and if i am
correct these
> probes are around 100 - 150Khz so i'll need something better , iv'e not
done
> much with Infra-red , so if you parden the pun , i'm in the dark ! lol "
>
> iv'e found a remote in the house that actually activates the probe , and
starts it
> . so thats something close . but i'm wondering if just about any sender
would
> do it , as it's working on a carrier rather than code
>
>
>
>
> On 23 September 2016 at 13:07, Ken Strauss <ken.stra...@sympatico.ca>
> wrote:
>
> > Looking at the drawing that Sarah was kind enough to supply, the
> > Renishaw
> > MP10
> > is about 5 inches plus the probe. That wouldn't be too bad to fit on
> > my Tormach 770 which is a mid-sized hobby machine.
> >
> > > -Original Message-
> > > From: andy pugh [mailto:bodge...@gmail.com]
> > > Sent: Thursday, September 22, 2016 12:49 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
> > > how
> > to
> > > interface ?
> > >
> > > On 22 September 2016 at 16:02, Ken Strauss
> > > <ken.stra...@sympatico.ca>
> > > wrote:
> > >
> > > > I've never handled a MP3 so...
> > > > Most of the MP3 probes listed on eBay include a CAT40 or CAT50
taper.
> > > > Is this easily removable? If removable what is the native shank
> > > > for a MP3?
> > > >
> > >
> > > Yes. The probe mounts to the shank with 4 screws and then a ball in
> > > the probe fits in a hole in the shank. The screws don't pull up
> > > tight, you adjust
> > them
> > > like a
> > > 4-jaw chuck to centre the probe tip.
> > >
> > > I used a BT30 boring-bar adaptor (they are cheaper than metal from
> > > eBay)
> > and
> > > fitted a adaptor to increase the diameter enough for the screws:
> > > https://goo.gl/photos/sRDrZbNsnT3z1tuN9
> > >
> > > The MP3 is not a particularly small probe. If you have a tiny
> > > machine
> > then
> > > you
> > > might want something littler.
> > >
> > >
> > > --
> > > atp
> > > "A motorcycle is a bicycle with a pandemonium attachment and is
> > > designed
> > for
> > > the especial use of mechanical geniuses, daredevils and lunatics."
> > > - George Fitch, Atlanta Constitution Newspaper, 1916
> > > 
> > --
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> >
> > 
> > --
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-25 Thread Florian Rist
Hi Sarah

> anyone suggest a better infra red detector than the AX-1838HS

Jon Elson uses a QSE159 [1]. I bought a few, but I did not find the time 
to test it.

See you
Florian

[1] https://www.fairchildsemi.com/datasheets/QS/QSE159.pdf

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-25 Thread Sarah Armstrong
anyone suggest a better infra red detector than the AX-1838HS

as i see it's band pass is just about centered on 38Khz , and if i am
correct these probes are around 100 - 150Khz
so i'll need something better , iv'e not done much with Infra-red , so if
you parden the pun , i'm in the dark ! lol "

iv'e found a remote in the house that actually activates the probe , and
starts it . so thats something
close . but i'm wondering if just about any sender would do it , as it's
working on a carrier rather than code




On 23 September 2016 at 13:07, Ken Strauss <ken.stra...@sympatico.ca> wrote:

> Looking at the drawing that Sarah was kind enough to supply, the Renishaw
> MP10
> is about 5 inches plus the probe. That wouldn't be too bad to fit on my
> Tormach 770 which is a mid-sized hobby machine.
>
> > -Original Message-
> > From: andy pugh [mailto:bodge...@gmail.com]
> > Sent: Thursday, September 22, 2016 12:49 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
> to
> > interface ?
> >
> > On 22 September 2016 at 16:02, Ken Strauss <ken.stra...@sympatico.ca>
> > wrote:
> >
> > > I've never handled a MP3 so...
> > > Most of the MP3 probes listed on eBay include a CAT40 or CAT50 taper.
> > > Is this easily removable? If removable what is the native shank for a
> > > MP3?
> > >
> >
> > Yes. The probe mounts to the shank with 4 screws and then a ball in the
> > probe
> > fits in a hole in the shank. The screws don't pull up tight, you adjust
> them
> > like a
> > 4-jaw chuck to centre the probe tip.
> >
> > I used a BT30 boring-bar adaptor (they are cheaper than metal from eBay)
> and
> > fitted a adaptor to increase the diameter enough for the screws:
> > https://goo.gl/photos/sRDrZbNsnT3z1tuN9
> >
> > The MP3 is not a particularly small probe. If you have a tiny machine
> then
> > you
> > might want something littler.
> >
> >
> > --
> > atp
> > "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for
> > the especial use of mechanical geniuses, daredevils and lunatics."
> > - George Fitch, Atlanta Constitution Newspaper, 1916
> > 
> --
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>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-22 Thread andy pugh
On 22 September 2016 at 16:02, Ken Strauss  wrote:

> I've never handled a MP3 so...
> Most of the MP3 probes listed on eBay include a CAT40 or CAT50 taper. Is
> this
> easily removable? If removable what is the native shank for a MP3?
>

Yes. The probe mounts to the shank with 4 screws and then a ball in the
probe fits in a hole in the shank. The screws don't pull up tight, you
adjust them like a 4-jaw chuck to centre the probe tip.

I used a BT30 boring-bar adaptor (they are cheaper than metal from eBay)
and fitted a adaptor to increase the diameter enough for the screws:
https://goo.gl/photos/sRDrZbNsnT3z1tuN9

The MP3 is not a particularly small probe. If you have a tiny machine then
you might want something littler.


-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-21 Thread Jon Elson
On 09/20/2016 11:49 PM, hubert wrote:
> It will be a while before I will start getting results.  I need to pick
> up the Mill and then find a way to get it into my shop.  The shop is a
> converted bedroom with only a 36" door opening out on a backyard Patio.
> With luck we will get it wired in this weekend, with probeand parts
> should arriving Early Next week.
>
In my last house, there was a 32" (I think) standard door 
from the garage to the basement.  I managed to work a 
Bridgeport mill through that door with just a little 
thinking.  I ran the table to one end, angled it through the 
doorway, then cranked the table to the other extreme and 
swung it inside.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread hubert


On 9/20/16 11:12 PM, Jon Elson wrote:
> On 09/20/2016 06:27 PM, hubert wrote:
>> Jon
>>
>> I ordered some QSE159's to use as detectors and some ir leds for
>> generating turn on.  I have an FPGA board and some arduino's to try for
>> the control logic.  One question.  If an FPGA can be used for the
>> control logic, couldn't the FPGA on the Mesa card be programmed to
>> include this?
> Undoubtedly so.  But, I am a competitor to Mesa, and so tend
> to use my OWN gear!
I understand your preference.  The Mesa boards was the LinuxCNC Options 
Skyfire offered when I ordered my machine.  The FPGA development board I 
picked up to start my probe work has the Xilinx XC6SLX9 TQG144 FPGA.
> I have a board with a Spartan XC3S50AN, a small FPGA with
> built-in config EPROM that I usually sell as a converter for
> Fanuc serial encoders.  It had just the right complement of
> input and output converters.
>
> If you know FPGA programming, then dive right in.  That's an
> art not too many CNC guys are up to speed on.
I won't claim I was ever an expert, and I am certainly cold on the 
subject.  I haven't fired up a development kit since I retired from 
teaching Computer Engineering in 2008,  but we used the Xilinx Spartan 
and Vertex families for introducing our Students to embedded computing.
>> I do think initially this should be done separately until
>> everything is well understood, but it just doesn't appear that should be
>> very complicated in FPGA terms.
>>
> No, the trouble with the Blum probe was figuring out exactly
> what it wanted for turn-on and turn-off.
> I was flying fairly blind, and just increased and decreased
> pulse width, pulse frequency and burst length until I got a
> reliable turn-on/off.  I started with a pulse generator, and
> when I had come up with boundaries on all these, I set the
> FPGA for the middle of those ranges.
It will be a while before I will start getting results.  I need to pick 
up the Mill and then find a way to get it into my shop.  The shop is a 
converted bedroom with only a 36" door opening out on a backyard Patio.  
With luck we will get it wired in this weekend, with probeand parts 
should arriving Early Next week.
> Once the probe was turned on, figuring out the output data
> pattern was completely trivial.
>
> Jon
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread Jon Elson
On 09/20/2016 06:27 PM, hubert wrote:
> Jon
>
> I ordered some QSE159's to use as detectors and some ir leds for
> generating turn on.  I have an FPGA board and some arduino's to try for
> the control logic.  One question.  If an FPGA can be used for the
> control logic, couldn't the FPGA on the Mesa card be programmed to
> include this?
Undoubtedly so.  But, I am a competitor to Mesa, and so tend 
to use my OWN gear!
I have a board with a Spartan XC3S50AN, a small FPGA with 
built-in config EPROM that I usually sell as a converter for 
Fanuc serial encoders.  It had just the right complement of 
input and output converters.

If you know FPGA programming, then dive right in.  That's an 
art not too many CNC guys are up to speed on.
>I do think initially this should be done separately until
> everything is well understood, but it just doesn't appear that should be
> very complicated in FPGA terms.
>
No, the trouble with the Blum probe was figuring out exactly 
what it wanted for turn-on and turn-off.
I was flying fairly blind, and just increased and decreased 
pulse width, pulse frequency and burst length until I got a 
reliable turn-on/off.  I started with a pulse generator, and 
when I had come up with boundaries on all these, I set the 
FPGA for the middle of those ranges.

Once the probe was turned on, figuring out the output data 
pattern was completely trivial.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread Jon Elson
On 09/20/2016 11:59 AM, Sarah Armstrong wrote:
> Guy's
> i'm looking at my renishaw probes , i'm not sure if i am seeing this
> correctly
> but apart from decoding the stream , i'm seeing  when not touching the
> probe emits a signal at about 150khz. When it senses touch it goes up to
> 160khz.
> but at the moment i'm not sure , as the only ir detectors i have works at
> 38k
>
When I first started analyzing the Blum probe, I just put a 
photodiode right next to the emitter LEDs on the probe, and 
pulled it to +5V with a 1K resistor or thereabouts.  It was 
very clear what was happening with a scope.  The Blum sends 
a single serial byte at about 60 Hz, and then sends a byte 
whenever the probe status changes.  One bit flips to 
indicate the probe deflection.

Most of the IR receivers are set for 38 KHz, but the QSE159 
does not have a bandpass filter, and has very fast 
response.  I do see some variation in the width of the bits 
as distance is varied, but it works fine over the range I 
expect to be using.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread hubert
Jon

I ordered some QSE159's to use as detectors and some ir leds for 
generating turn on.  I have an FPGA board and some arduino's to try for 
the control logic.  One question.  If an FPGA can be used for the 
control logic, couldn't the FPGA on the Mesa card be programmed to 
include this?  I do think initially this should be done separately until 
everything is well understood, but it just doesn't appear that should be 
very complicated in FPGA terms.


On 9/20/16 11:59 AM, Sarah Armstrong wrote:
> Guy's
> i'm looking at my renishaw probes , i'm not sure if i am seeing this
> correctly
> but apart from decoding the stream , i'm seeing  when not touching the
> probe emits a signal at about 150khz. When it senses touch it goes up to
> 160khz.
> but at the moment i'm not sure , as the only ir detectors i have works at
> 38k
> i'm using an arduino for quickness , although i would be using a stm32 once
> iv'e figured it all out
> https://arduino-info.wikispaces.com/IR-RemoteControl
>
>
> On 20 September 2016 at 00:57, hubert  wrote:
>
>> Hi All
>>
>> This thread and it's follow on triggered my interest, so I just snagged
>> a Renishaw MP3 probe on Ebay and now face the task of interfacing this
>> to my New CNC mill which I am due to pickup later this week.  I ordered
>> the mill with LinuxCNC using the Mesa cards to interface to the
>> computer.  The mill uses Servo's on X,Y,Z.  It is a small mill with a 12
>> position tool changer, thus I am hoping to put the probe in one of the
>> pockets and use it to sense work-piece position, and also to digitize.
>> While this is my Hobby mill I am hoping to get close to 100micro inches
>> repeatability.  I would appreciate any pointers to available data for
>> building/buying a relatively inexpensive transmitter receiver for this
>> purpose.
>>
>>
>> On 9/8/16 11:07 AM, Jon Elson wrote:
>>> On 09/08/2016 09:56 AM, Florian Rist wrote:
 Hi Jon

> Yes, I thought about building a receiver out of various
> parts, but there are application specific parts that combine
> all this in one unit.  Most are made with 38 KHz band pass
> filters for VCR remote controls,
 Yes, that's why I didn't even look into theses integrated devices.

> but the QSE159 does not
> have the BPF, looked to be sensitive enough, and was really
> cheap ($1.06)
 Indeed, interesting.

 Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
 2.5W/m², that's quite a lot. But, now that I started looking, there are
 quite a few similar integrated devices available, some with much high
 sensitivity down to at least 10µW/cm². However most are lacking the
 Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
 get one, too.


>>> I have no idea what the radiated power of the Blum probe is,
>>> but it has 12 big surface-mount LEDs arranged around the
>>> periphery.  The QSE sensor picks it up very well out past
>>> 6", which is all the sensitivity I will need.
>>>
>>> Jon
>>>
>>> 
>> --
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread Florian Rist
Hi Sarah

> i'm looking at my renishaw probes...

I don't know much about the Renishaw siganls jet. I want to take a 
closer look, but didn't find the time yet.

However I thought I quickly mention that, at least my Renishaw probe has 
two different modes of operation, one compatible with the order 
interfaces and one for the more modern ones. It can be changes by a 
deflection the stylus in certain way after inserting the batteries. And 
the old mode mentioned to have 'no modulation' while the one is with 
modulation. It might be easier to decode the old protocol, or at least 
it might be worth taking a look at both. My probe is currently running 
the old protocol for a old OMI.

See you
Florian


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-20 Thread Sarah Armstrong
Guy's
i'm looking at my renishaw probes , i'm not sure if i am seeing this
correctly
but apart from decoding the stream , i'm seeing  when not touching the
probe emits a signal at about 150khz. When it senses touch it goes up to
160khz.
but at the moment i'm not sure , as the only ir detectors i have works at
38k
i'm using an arduino for quickness , although i would be using a stm32 once
iv'e figured it all out
https://arduino-info.wikispaces.com/IR-RemoteControl


On 20 September 2016 at 00:57, hubert  wrote:

> Hi All
>
> This thread and it's follow on triggered my interest, so I just snagged
> a Renishaw MP3 probe on Ebay and now face the task of interfacing this
> to my New CNC mill which I am due to pickup later this week.  I ordered
> the mill with LinuxCNC using the Mesa cards to interface to the
> computer.  The mill uses Servo's on X,Y,Z.  It is a small mill with a 12
> position tool changer, thus I am hoping to put the probe in one of the
> pockets and use it to sense work-piece position, and also to digitize.
> While this is my Hobby mill I am hoping to get close to 100micro inches
> repeatability.  I would appreciate any pointers to available data for
> building/buying a relatively inexpensive transmitter receiver for this
> purpose.
>
>
> On 9/8/16 11:07 AM, Jon Elson wrote:
> > On 09/08/2016 09:56 AM, Florian Rist wrote:
> >> Hi Jon
> >>
> >>> Yes, I thought about building a receiver out of various
> >>> parts, but there are application specific parts that combine
> >>> all this in one unit.  Most are made with 38 KHz band pass
> >>> filters for VCR remote controls,
> >> Yes, that's why I didn't even look into theses integrated devices.
> >>
> >>> but the QSE159 does not
> >>> have the BPF, looked to be sensitive enough, and was really
> >>> cheap ($1.06)
> >> Indeed, interesting.
> >>
> >> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> >> 2.5W/m², that's quite a lot. But, now that I started looking, there are
> >> quite a few similar integrated devices available, some with much high
> >> sensitivity down to at least 10µW/cm². However most are lacking the
> >> Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> >> get one, too.
> >>
> >>
> > I have no idea what the radiated power of the Blum probe is,
> > but it has 12 big surface-mount LEDs arranged around the
> > periphery.  The QSE sensor picks it up very well out past
> > 6", which is all the sensitivity I will need.
> >
> > Jon
> >
> > 
> --
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-19 Thread hubert
Hi All

This thread and it's follow on triggered my interest, so I just snagged 
a Renishaw MP3 probe on Ebay and now face the task of interfacing this 
to my New CNC mill which I am due to pickup later this week.  I ordered 
the mill with LinuxCNC using the Mesa cards to interface to the 
computer.  The mill uses Servo's on X,Y,Z.  It is a small mill with a 12 
position tool changer, thus I am hoping to put the probe in one of the 
pockets and use it to sense work-piece position, and also to digitize.  
While this is my Hobby mill I am hoping to get close to 100micro inches 
repeatability.  I would appreciate any pointers to available data for 
building/buying a relatively inexpensive transmitter receiver for this 
purpose.


On 9/8/16 11:07 AM, Jon Elson wrote:
> On 09/08/2016 09:56 AM, Florian Rist wrote:
>> Hi Jon
>>
>>> Yes, I thought about building a receiver out of various
>>> parts, but there are application specific parts that combine
>>> all this in one unit.  Most are made with 38 KHz band pass
>>> filters for VCR remote controls,
>> Yes, that's why I didn't even look into theses integrated devices.
>>
>>> but the QSE159 does not
>>> have the BPF, looked to be sensitive enough, and was really
>>> cheap ($1.06)
>> Indeed, interesting.
>>
>> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
>> 2.5W/m², that's quite a lot. But, now that I started looking, there are
>> quite a few similar integrated devices available, some with much high
>> sensitivity down to at least 10µW/cm². However most are lacking the
>> Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
>> get one, too.
>>
>>
> I have no idea what the radiated power of the Blum probe is,
> but it has 12 big surface-mount LEDs arranged around the
> periphery.  The QSE sensor picks it up very well out past
> 6", which is all the sensitivity I will need.
>
> Jon
>
> --
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> Emc-users mailing list
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-12 Thread Sarah Armstrong
for info ,   anyone used or seen  this
http://ostan.cz/IR_protocol_analyzer/

i'm just about to start digging on my renshaw' probes , a bit more



On 8 September 2016 at 17:07, Jon Elson  wrote:

> On 09/08/2016 09:56 AM, Florian Rist wrote:
> > Hi Jon
> >
> >> Yes, I thought about building a receiver out of various
> >> parts, but there are application specific parts that combine
> >> all this in one unit.  Most are made with 38 KHz band pass
> >> filters for VCR remote controls,
> > Yes, that's why I didn't even look into theses integrated devices.
> >
> >> but the QSE159 does not
> >> have the BPF, looked to be sensitive enough, and was really
> >> cheap ($1.06)
> > Indeed, interesting.
> >
> > Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> > 2.5W/m², that's quite a lot. But, now that I started looking, there are
> > quite a few similar integrated devices available, some with much high
> > sensitivity down to at least 10µW/cm². However most are lacking the
> > Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> > get one, too.
> >
> >
> I have no idea what the radiated power of the Blum probe is,
> but it has 12 big surface-mount LEDs arranged around the
> periphery.  The QSE sensor picks it up very well out past
> 6", which is all the sensitivity I will need.
>
> Jon
>
> 
> --
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>



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prior to leaving the RcTechnix network. RcTechnix will not be liable for
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-08 Thread Jon Elson
On 09/08/2016 09:56 AM, Florian Rist wrote:
> Hi Jon
>
>> Yes, I thought about building a receiver out of various
>> parts, but there are application specific parts that combine
>> all this in one unit.  Most are made with 38 KHz band pass
>> filters for VCR remote controls,
> Yes, that's why I didn't even look into theses integrated devices.
>
>> but the QSE159 does not
>> have the BPF, looked to be sensitive enough, and was really
>> cheap ($1.06)
> Indeed, interesting.
>
> Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to
> 2.5W/m², that's quite a lot. But, now that I started looking, there are
> quite a few similar integrated devices available, some with much high
> sensitivity down to at least 10µW/cm². However most are lacking the
> Schmitt-trigger of the QSE159, nice part, that you found, I'm going to
> get one, too.
>
>
I have no idea what the radiated power of the Blum probe is, 
but it has 12 big surface-mount LEDs arranged around the 
periphery.  The QSE sensor picks it up very well out past 
6", which is all the sensitivity I will need.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-08 Thread Florian Rist
Hi Jon

> Yes, I thought about building a receiver out of various
> parts, but there are application specific parts that combine
> all this in one unit.  Most are made with 38 KHz band pass
> filters for VCR remote controls,

Yes, that's why I didn't even look into theses integrated devices.

> but the QSE159 does not
> have the BPF, looked to be sensitive enough, and was really
> cheap ($1.06)

Indeed, interesting.

Not sure if it is sensitive enough, 0.25 mW/cm² worst case translates to 
2.5W/m², that's quite a lot. But, now that I started looking, there are 
quite a few similar integrated devices available, some with much high 
sensitivity down to at least 10µW/cm². However most are lacking the 
Schmitt-trigger of the QSE159, nice part, that you found, I'm going to 
get one, too.

See you
Flor

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-07 Thread Jon Elson
On 09/07/2016 01:12 PM, Florian Rist wrote:
> Hi Jon,
> thanks for the update on your experiments, very interesting.
>
>> I still need to build a better IR transmitter and receiver
>> so that can be more than a few inches from the probe.
> Regarding the receiver I have not built anything yet, but when I was
> looking for information on this subject I came across this nice design
> for a simple 1 MHz receiver:
>
> http://www.ti.com/lit/ug/tidu535/tidu535.pdf
>
> The used OpAmp OPA320 as well as the photo-diode SFH213 are easy to get.
>
>
Yes, I thought about building a receiver out of various 
parts, but there are application specific parts that combine 
all this in one unit.  Most are made with 38 KHz band pass 
filters for VCR remote controls, but the QSE159 does not 
have the BPF, looked to be sensitive enough, and was really 
cheap ($1.06)

I used a bank of 6 LTE-4208 IR LEDs to send the turn on/off 
burst to the device, powered by a 2N, and that works 
great from more than 6", which is all the distance I need.  
The QSE159 only needs a pull-up resistor, and it works great 
to receive the IR data from the probe.  So, that end is all 
working.  I need to make up a little adapter to connect to 
my CNC interface and put it in a box, and I am ready to 
start testing probe routines.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-09-07 Thread Florian Rist
Hi Jon,
thanks for the update on your experiments, very interesting.

> I still need to build a better IR transmitter and receiver
> so that can be more than a few inches from the probe.

Regarding the receiver I have not built anything yet, but when I was 
looking for information on this subject I came across this nice design 
for a simple 1 MHz receiver:

   http://www.ti.com/lit/ug/tidu535/tidu535.pdf

The used OpAmp OPA320 as well as the photo-diode SFH213 are easy to get.

See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-30 Thread Jon Elson
On 08/18/2016 09:41 PM, Jon Elson wrote:

OK, I have an interface pretty much working on the bench to 
control/sense the probe.

I spent a bunch of time looking for a data pattern for input 
to the probe, and finally think it does NOT accept data.  It 
takes a quarter-second burst of IR pulses at 500 Hz to turn 
it on or off. And, that is all you can do.

it seems it prefers higher voltage 9V batteries, and even a 
new alkaline 9V is a bit marginal.  (Now, maybe there is 
someplace you can get REAL 9V alkalines, but the ones I have 
here seem to test out more like 7.2 - 7.6 V.
So, those lower-voltage batteries set off the batt-low 
indication after a while.

Once turned on, the probe sends out a 19.2K baud byte every 
16 ms, and when there is a change of state of the probe 
tip.  When not triggered, the byte is :
01010100  (with 1 meaning LED lit)

on the first transmission after the probe is deflected it sends:
11010100

after the first transmission of a trigger, it sends
10010100  as long as the probe is still deflected

The last bit goes to a 1 when the battery is low.

The start bit of the data is not shown above, it is with the 
LED lit.

I hacked up some FPGA code to send the turn on/off sequence 
and decode the serial data.
I still need to build a better IR transmitter and receiver 
so that can be more than a few inches from the probe.
Right now I'm using one old IR LED to send and a photodiode 
to receive directly to a comparator input, with resistive 
pullup.  I'm amazed that works at all.  I will try to set up 
a transimpedance amplifier with a baseline adjuster to make 
it work from farther away.

Now, I have a bit of steel round coming so I can make a new 
arbor for it to mount to an R-8 end mill holder.
Then, I can put it on the mill and try out some probing 
routines!

Jon


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-18 Thread Jon Elson
On 08/18/2016 01:57 PM, Florian Rist wrote:
> Hi Jon
>
>> Thanks, not sure it corresponds.
> Here is one that should fit:
>
> http://www.modmash.nnov.ru/prod/blumdl/umtc.pdf
>
> It explicitly covers the P03.5000-010-A2 (that's the type number of a
> TC50 probe, second generation), BUT it is in Russian. :-)
>
>
>
Thanks!  My Russian is a bit rough, but it seems to confirm 
what the other manual indicated for the LEDs.  it actually 
makes sense that the probe can be told to send "low bat" so 
you can prove the CNC control detects that condition and 
reports it properly.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-18 Thread Florian Rist
Hi Jon

> Thanks, not sure it corresponds.

Here is one that should fit:

http://www.modmash.nnov.ru/prod/blumdl/umtc.pdf

It explicitly covers the P03.5000-010-A2 (that's the type number of a 
TC50 probe, second generation), BUT it is in Russian. :-)


See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-17 Thread Jon Elson
On 08/17/2016 01:01 PM, Florian Rist wrote:
> Hi Jon
>
>> And, the info available from Blum is only
>> sales info, with no user manual or anything that
>> I can find.
> I had a quick look and fond a lot of info on the TC60. Its identical to
> the TC50 except it uses radio instead of IR. The features, LEDs, etc.
> should be the same, I guess.
>
> Here is an overview on documents on the TC60 submitted to the FCC:
>
> https://fccid.io/ZCQTCA
>
> TC60 Manual:
> https://fccid.io/document.php?id=1497495
>
>
Thanks, not sure it corresponds.  I can trigger it between 
off, on normally (green flashing) and low batt?
(green/blue flashing) from the IR interface.  So, it seems 
the green/blue may mean something different on
the TC50.  But, that's the first manual I've seen that 
mentions the LEDs.  (Possibly this is a test mode to allow 
you to simulate a low battery in the probe to check the 
interface to the CNC control. Actually, that makes sense!)

I will have to build a circuit to send binary patterns to it 
to find out what is the turn-on and turn-off codes.

I've already deciphered the IR output scheme, really simple, 
should be able to put that in a CPLD and generate a contact 
closure for the probe.

Thanks,

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-17 Thread Florian Rist
Hi Jon

> And, the info available from Blum is only
> sales info, with no user manual or anything that
> I can find.

I had a quick look and fond a lot of info on the TC60. Its identical to 
the TC50 except it uses radio instead of IR. The features, LEDs, etc. 
should be the same, I guess.

Here is an overview on documents on the TC60 submitted to the FCC:

https://fccid.io/ZCQTCA

TC60 Manual:
https://fccid.io/document.php?id=1497495

Receiver Manual:
https://fccid.io/document.php?id=1561795


> I'll have to look harder.

Or ask Blum.

See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-17 Thread Jon Elson
On 08/17/2016 01:52 AM, Gregg Eshelman wrote:
> With all those lights, it may be an alien probe. ;)
> Close Encounters of the Third Kind (6/8) Movie CLIP - Communicating with the 
> Mothership (1977) HD
>
I watched an online video, and it blinked a regular pattern 
on the green LED, and changed to red when the probe is 
deflected.  So, I have no idea what the blue LED is about.  
Hopefully, Blum will tell me.

Yes, it definitely looks futuristic, especially when the 
LEDs are flashing.  Much fancier looking that the typical 
touch probe.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-17 Thread Gregg Eshelman
With all those lights, it may be an alien probe. ;)
Close Encounters of the Third Kind (6/8) Movie CLIP - Communicating with the 
Mothership (1977) HD

  
|  
|   
|   
|   ||

   |

  |
|  
||  
Close Encounters of the Third Kind (6/8) Movie CLIP - Communicating with th...
 Close Encounters of the Third Kind movie clips: http://j.mp/1JboAnh BUY THE 
MOVIE: http://amzn.to/vv20vP Don'...  |   |

  |

  |

 

 
  From: Jon Elson <el...@pico-systems.com>
 To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net> 
 Sent: Tuesday, August 16, 2016 7:54 PM
 Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how to 
interface ?
   
OK, got the unit in today.  it does not seem corroded or 
damaged in any way.
The 9V battery in it was dead, of course.

So, it is a bit more complicated that I had hoped.  It seems 
to send an 8-bit data pattern, and two
bits flip in opposite directions when the stylus is 
deflected.  I'm guessing that one of the bits also indicates 
low battery, as Blum's IR receiver has an LED on it for 
probe battery low.

But, the extra complexity is it needs an input via IR to 
turn the probe on and off.  I rigged an IR LED to a pulse 
generator and was able to turn it on and off.  I will have 
to find the right bit sequences to do that.
It has visible LEDs that flash green, or green / blue when 
idle, and then turn red when the probe is deflected.
Different IR inputs to the probe meake it flash only green, 
or green / blue, and the bit pattern it sends changes 
depending on which colors it is flashing.  I have NO IDEA 
what that means.  And, the info available from Blum is only 
sales info, with no user manual or anything that I can 
find.  I'll have to look harder.

But, I'm pretty sure I can get this to work.
   
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-16 Thread Jon Elson
OK, got the unit in today.  it does not seem corroded or 
damaged in any way.
The 9V battery in it was dead, of course.

So, it is a bit more complicated that I had hoped.  It seems 
to send an 8-bit data pattern, and two
bits flip in opposite directions when the stylus is 
deflected.  I'm guessing that one of the bits also indicates 
low battery, as Blum's IR receiver has an LED on it for 
probe battery low.

But, the extra complexity is it needs an input via IR to 
turn the probe on and off.  I rigged an IR LED to a pulse 
generator and was able to turn it on and off.  I will have 
to find the right bit sequences to do that.
It has visible LEDs that flash green, or green / blue when 
idle, and then turn red when the probe is deflected.
Different IR inputs to the probe meake it flash only green, 
or green / blue, and the bit pattern it sends changes 
depending on which colors it is flashing.  I have NO IDEA 
what that means.  And, the info available from Blum is only 
sales info, with no user manual or anything that I can 
find.  I'll have to look harder.

But, I'm pretty sure I can get this to work.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread gcorlew
It looks a lot like a Renshaw spindle probe. As I was looking at the pictures I 
noticed that in one of them I saw something that would concern me. It looks 
like there is some greenish looking stuff around the shaft that the stylist 
threads into making me think that the batteries had been left in it way to long 
and they leaked. Also they use very expensive batteries. The one I used to use 
on a VF11 Haas mill had to be shut off and on with a macro. The batteries were 
$10.00 each, it took two and if I was very careful and shut it off after using 
they would last a couple of months. I wish you the best of luck with it!


 Jon Elson  wrote: 
> 
> 
> I just managed to snag a Blum TC50 touch probe on eBay for 
> $50 delivered.  Seems to be a $4000
> probe.  http://www.ebay.com/itm/272331012422
> 
> Some videos show that it has green LEDs that blink once a 
> second or so when turned on, and red LEDs that flash when 
> the probe contacts something.  Also, some IR LEDs that 
> presumably flash on contact. This did NOT come with the 
> remote IR pickup module.  Does anybody know what the 
> characteristics of the IR signal is?
> 
> I'm guessing it just flashes the IR LEDs at some high 
> frequency on probe contact, and so I can probably make a 
> really simple pickup for it with some IR photodiodes and an 
> AC bandpass detector.
> 
> They note it takes 2 N side force and 7 N end force to 
> trigger the probe, which seems amazingly high!
> Any comments?
> 
> Thanks,
> 
> Jon
> 
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are 
> consuming the most bandwidth. Provides multi-vendor support for NetFlow, 
> J-Flow, sFlow and other flows. Make informed decisions using capacity 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Jon Elson
On 08/13/2016 12:32 PM, Valerio Bellizzomi wrote:
> On Sat, 2016-08-13 at 11:12 -0500, Jon Elson wrote:
>> On 08/13/2016 12:39 AM, Valerio Bellizzomi wrote:
>>> is this probe good ?
>>>
>>> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
>>>
>>>
>> This is a hobby-grade probe made in a guy's home shop, I
>> believe. Still, on a hobby-grade machine, it may be better
>> than you need.
>>
>> Jon
> It is a single machine. Not sure what you intend with hobby-grade, I'm
> building it and it is well designed with low cost components :-)
>
> I need a probe with a 8mm or 12mm shank
>
If your machine has .001"  (.025mm) of backlash, and perhaps 
10,000 steps or encoder counts/inch, then probably all of 
the probes will work fine.

This probe I got on eBay requires a 10 um deflection to 
trigger, but the repeatability is about 1-2 um!
WAY better that the machine I'm going to put it on.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Florian Rist
Hi John

> http://gnipsel.com/images/touch-probe/touch-probe-01.jpg
> http://gnipsel.com/images/touch-probe/touch-probe-02.jpg

Thanks for the images.

That's surprisingly simple. I would have expected that much higher 
surface quality on the contacts is needed. Interesting.

My guess would be be a hard gold on nickle plating on a brass body, 
elector polishing the surfaces prior to coating might be a good idea. 
And to ensure a long life the max. current has to be small, but not to 
small, 500µA maybe and only very small capacitive and inductive loads on 
the line.

I once thought about building a high precision touch probe, but in the 
end I just used a precision witch from Baumer, <1µm repeatability for 
about 100 EUR, but that is single contact (1D switch).


See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread John Thornton
Beats me lol.

JT


On 8/13/2016 4:31 PM, Ken Strauss wrote:
> Thanks for the photos. I assume that the material is brass rather than gold.
> So brass on brass doesn't accumulate crud?
>
>> -Original Message-
>> From: John Thornton [mailto:j...@gnipsel.com]
>> Sent: Saturday, August 13, 2016 4:59 PM
>> To: Enhanced Machine Controller (EMC)
>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
>> to interface ?
>>
>> http://gnipsel.com/images/touch-probe/touch-probe-01.jpg
>>
>> http://gnipsel.com/images/touch-probe/touch-probe-02.jpg
>>
>> JT
>>
>>
>> On 8/13/2016 2:18 PM, Ken Strauss wrote:
>>> Any idea what the "magic" combination for the switch contacts that he
>>> mentions on his website is?
>>>
>>>> -Original Message-
>>>> From: John Thornton [mailto:j...@gnipsel.com]
>>>> Sent: Saturday, August 13, 2016 1:13 PM
>>>> To: Enhanced Machine Controller (EMC)
>>>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
>>>> how to interface ?
>>>>
>>>> I bought this one
>>>>
>>>> http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
>>>>
>>>> After taking it apart one day and pressing the contacts to the
>>>> shoulder it seems as good as my BP series 1.
>>>>
>>>> JT
>>>>
>>>>
>>>> On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
>>>>> is this probe good ?
>>>>>
>>>>>
>> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
>>>> _trks
>>>>> id=p3984.m1436.l2649
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> 
>>>>> --
>>>>>  What NetFlow Analyzer can do for you? Monitors network
>>>>> bandwidth and traffic patterns at an interface-level. Reveals which
>>>>> users, apps, and protocols are consuming the most bandwidth.
>>>>> Provides multi-vendor support for NetFlow, J-Flow, sFlow and other
>>>>> flows. Make informed decisions using capacity planning reports.
>>>>> http://sdm.link/zohodev2dev
>>>>> ___
>>>>> Emc-users mailing list
>>>>> Emc-users@lists.sourceforge.net
>>>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>>
>>> --
>>> --
>>> --
>>>> What NetFlow Analyzer can do for you? Monitors network bandwidth and
>>>> traffic patterns at an interface-level. Reveals which users, apps,
>>>> and
>>> protocols
>>>> are consuming the most bandwidth. Provides multi-vendor support for
>>>> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
>>>> capacity planning reports. http://sdm.link/zohodev2dev
>>>> ___
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>>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>> --
>>>  What NetFlow Analyzer can do for you? Monitors network
>>> bandwidth and traffic patterns at an interface-level. Reveals which
>>> users, apps, and protocols are consuming the most bandwidth. Provides
>>> multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
>>> informed decisions using capacity planning reports.
>>> http://sdm.link/zohodev2dev
>>> ___
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>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
> 
> --
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>> traffic patterns at an interface-level. Reveals which users, apps, and
> protocols
>> are consuming the most bandwidth. Provides multi-vendor support for
>> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
>> capacity planning reports. http://sdm.link/zohodev2dev
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Ken Strauss
Thanks for the photos. I assume that the material is brass rather than gold.
So brass on brass doesn't accumulate crud?

> -Original Message-
> From: John Thornton [mailto:j...@gnipsel.com]
> Sent: Saturday, August 13, 2016 4:59 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
> to interface ?
>
> http://gnipsel.com/images/touch-probe/touch-probe-01.jpg
>
> http://gnipsel.com/images/touch-probe/touch-probe-02.jpg
>
> JT
>
>
> On 8/13/2016 2:18 PM, Ken Strauss wrote:
> > Any idea what the "magic" combination for the switch contacts that he
> > mentions on his website is?
> >
> >> -Original Message-
> >> From: John Thornton [mailto:j...@gnipsel.com]
> >> Sent: Saturday, August 13, 2016 1:13 PM
> >> To: Enhanced Machine Controller (EMC)
> >> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
> >> how to interface ?
> >>
> >> I bought this one
> >>
> >> http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
> >>
> >> After taking it apart one day and pressing the contacts to the
> >> shoulder it seems as good as my BP series 1.
> >>
> >> JT
> >>
> >>
> >> On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> >>> is this probe good ?
> >>>
> >>>
> >>
> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
> >> _trks
> >>> id=p3984.m1436.l2649
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> 
> >>> --
> >>>  What NetFlow Analyzer can do for you? Monitors network
> >>> bandwidth and traffic patterns at an interface-level. Reveals which
> >>> users, apps, and protocols are consuming the most bandwidth.
> >>> Provides multi-vendor support for NetFlow, J-Flow, sFlow and other
> >>> flows. Make informed decisions using capacity planning reports.
> >>> http://sdm.link/zohodev2dev
> >>> ___
> >>> Emc-users mailing list
> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >>
> > --
> > --
> > --
> >> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> >> traffic patterns at an interface-level. Reveals which users, apps,
> >> and
> > protocols
> >> are consuming the most bandwidth. Provides multi-vendor support for
> >> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
> >> capacity planning reports. http://sdm.link/zohodev2dev
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> > --
> >  What NetFlow Analyzer can do for you? Monitors network
> > bandwidth and traffic patterns at an interface-level. Reveals which
> > users, apps, and protocols are consuming the most bandwidth. Provides
> > multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
> > informed decisions using capacity planning reports.
> > http://sdm.link/zohodev2dev
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>

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protocols
> are consuming the most bandwidth. Provides multi-vendor support for
> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread John Thornton
http://gnipsel.com/images/touch-probe/touch-probe-01.jpg

http://gnipsel.com/images/touch-probe/touch-probe-02.jpg

JT


On 8/13/2016 2:18 PM, Ken Strauss wrote:
> Any idea what the "magic" combination for the switch contacts that he
> mentions on his website is?
>
>> -Original Message-
>> From: John Thornton [mailto:j...@gnipsel.com]
>> Sent: Saturday, August 13, 2016 1:13 PM
>> To: Enhanced Machine Controller (EMC)
>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
>> to interface ?
>>
>> I bought this one
>>
>> http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
>>
>> After taking it apart one day and pressing the contacts to the shoulder it
>> seems as good as my BP series 1.
>>
>> JT
>>
>>
>> On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
>>> is this probe good ?
>>>
>>>
>> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
>> _trks
>>> id=p3984.m1436.l2649
>>>
>>>
>>>
>>>
>>>
>>> --
>>>  What NetFlow Analyzer can do for you? Monitors network
>>> bandwidth and traffic patterns at an interface-level. Reveals which
>>> users, apps, and protocols are consuming the most bandwidth. Provides
>>> multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
>>> informed decisions using capacity planning reports.
>>> http://sdm.link/zohodev2dev
>>> ___
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
> 
> --
>> What NetFlow Analyzer can do for you? Monitors network bandwidth and
>> traffic patterns at an interface-level. Reveals which users, apps, and
> protocols
>> are consuming the most bandwidth. Provides multi-vendor support for
>> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
>> capacity planning reports. http://sdm.link/zohodev2dev
>> ___
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>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. http://sdm.link/zohodev2dev
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread John Thornton
Yes I do as I've had it apart. When the rains slow down and I have a 
better connection I'll upload a photo.

JT

On 8/13/2016 2:18 PM, Ken Strauss wrote:
> Any idea what the "magic" combination for the switch contacts that he
> mentions on his website is?
>
>> -Original Message-
>> From: John Thornton [mailto:j...@gnipsel.com]
>> Sent: Saturday, August 13, 2016 1:13 PM
>> To: Enhanced Machine Controller (EMC)
>> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
>> to interface ?
>>
>> I bought this one
>>
>> http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
>>
>> After taking it apart one day and pressing the contacts to the shoulder it
>> seems as good as my BP series 1.
>>
>> JT
>>
>>
>> On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
>>> is this probe good ?
>>>
>>>
>> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
>> _trks
>>> id=p3984.m1436.l2649
>>>
>>>
>>>
>>>
>>>
>>> --
>>>  What NetFlow Analyzer can do for you? Monitors network
>>> bandwidth and traffic patterns at an interface-level. Reveals which
>>> users, apps, and protocols are consuming the most bandwidth. Provides
>>> multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
>>> informed decisions using capacity planning reports.
>>> http://sdm.link/zohodev2dev
>>> ___
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
> 
> --
>> What NetFlow Analyzer can do for you? Monitors network bandwidth and
>> traffic patterns at an interface-level. Reveals which users, apps, and
> protocols
>> are consuming the most bandwidth. Provides multi-vendor support for
>> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
>> capacity planning reports. http://sdm.link/zohodev2dev
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. http://sdm.link/zohodev2dev
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Gene Heskett
On Saturday 13 August 2016 15:18:51 Ken Strauss wrote:

> Any idea what the "magic" combination for the switch contacts that he
> mentions on his website is?
Mach may have a different format, and is crippled by the lags in its usb 
interfacing.  For linuxcnc, which can, even in sw, register a hit in 
well under 50 u-secs, has no such problems.

Hook it up to where ever you have the probe input for the G38.2 etc 
connected in your hal file.

One of my machines has a 5i25 card, and that logic connection is:

GO704fast.hal:net probe.sense   hm2_5i25.0.gpio.003.in_not  
motion.probe-input # signal source is p3-15
(all one line above)


Another, using the parport and software stepping is:
my-mill-atom-3.hal:net  probe   parport.0.pin-15-in-not => 
motion.probe-input

You may or may not need the '-not'.  Both of those inputs here have a 
pullup resistor in the 5k to 10k range pulling to 5 volts when the probe 
is not making contact with a grounded object. Also a smallish tantalum 
capacitor is used to store a momentary contact long enough that it 
registers to linuxcnc on the first contact of a spinning object, it 
improved the center of the hole repeatability by about an order of 
magnitude, so that whatever error is left is lost in the backlash comp.

This probe, which may have a separate logic supply, in which case feed it 
some 5 volts and ground, meaning there is a possibility its logic output 
is upside down.  Using a halmeter, watching motion.probe-input, which 
should be false when its not touching anything, and true if you deflect 
it with a finger.  Adjust your use of -not accordingly.

> > -Original Message-
> > From: John Thornton [mailto:j...@gnipsel.com]
> > Sent: Saturday, August 13, 2016 1:13 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know
> > how to interface ?
> >
> > I bought this one
> >
> > http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
> >
> > After taking it apart one day and pressing the contacts to the
> > shoulder it seems as good as my BP series 1.
> >
> > JT
> >
> > On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> > > is this probe good ?
> >
> > http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
> > _trks
> >
> > > id=p3984.m1436.l2649
> > >
> > >
> > >
> > >
> > >
> > > --
> > >  What NetFlow Analyzer can do for you? Monitors
> > > network bandwidth and traffic patterns at an interface-level.
> > > Reveals which users, apps, and protocols are consuming the most
> > > bandwidth. Provides multi-vendor support for NetFlow, J-Flow,
> > > sFlow and other flows. Make informed decisions using capacity
> > > planning reports.
> > > http://sdm.link/zohodev2dev
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> --
>-- --
>
> > What NetFlow Analyzer can do for you? Monitors network bandwidth and
> > traffic patterns at an interface-level. Reveals which users, apps,
> > and
>
> protocols
>
> > are consuming the most bandwidth. Provides multi-vendor support for
> > NetFlow, J-Flow, sFlow and other flows. Make informed decisions
> > using capacity planning reports. http://sdm.link/zohodev2dev
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> --
> What NetFlow Analyzer can do for you? Monitors network
> bandwidth and traffic patterns at an interface-level. Reveals which
> users, apps, and protocols are consuming the most bandwidth. Provides
> multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
> informed decisions using capacity planning reports.
> http://sdm.link/zohodev2dev
> ___
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
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 soap, ballot, jury, and ammo. Please use in that order."
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What 

Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Ken Strauss
Any idea what the "magic" combination for the switch contacts that he
mentions on his website is?

> -Original Message-
> From: John Thornton [mailto:j...@gnipsel.com]
> Sent: Saturday, August 13, 2016 1:13 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] snagged touch probe on eBay - anybody know how
> to interface ?
>
> I bought this one
>
> http://deepgroove1.com/stainlessprobe/stainlessprobe.htm
>
> After taking it apart one day and pressing the contacts to the shoulder it
> seems as good as my BP series 1.
>
> JT
>
>
> On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> > is this probe good ?
> >
> >
> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT;
> _trks
> > id=p3984.m1436.l2649
> >
> >
> >
> >
> >
> > --
> >  What NetFlow Analyzer can do for you? Monitors network
> > bandwidth and traffic patterns at an interface-level. Reveals which
> > users, apps, and protocols are consuming the most bandwidth. Provides
> > multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make
> > informed decisions using capacity planning reports.
> > http://sdm.link/zohodev2dev
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>

--
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic patterns at an interface-level. Reveals which users, apps, and
protocols
> are consuming the most bandwidth. Provides multi-vendor support for
> NetFlow, J-Flow, sFlow and other flows. Make informed decisions using
> capacity planning reports. http://sdm.link/zohodev2dev
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Valerio Bellizzomi
On Sat, 2016-08-13 at 11:12 -0500, Jon Elson wrote:
> On 08/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> > is this probe good ?
> >
> > http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
> >
> >
> This is a hobby-grade probe made in a guy's home shop, I 
> believe. Still, on a hobby-grade machine, it may be better 
> than you need.
> 
> Jon

It is a single machine. Not sure what you intend with hobby-grade, I'm
building it and it is well designed with low cost components :-)

I need a probe with a 8mm or 12mm shank




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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread John Thornton
I bought this one

http://deepgroove1.com/stainlessprobe/stainlessprobe.htm

After taking it apart one day and pressing the contacts to the shoulder 
it seems as good as my BP series 1.

JT


On 8/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> is this probe good ?
>
> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
>
>
>
>
>
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. http://sdm.link/zohodev2dev
> ___
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-13 Thread Jon Elson
On 08/13/2016 12:39 AM, Valerio Bellizzomi wrote:
> is this probe good ?
>
> http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649
>
>
This is a hobby-grade probe made in a guy's home shop, I 
believe. Still, on a hobby-grade machine, it may be better 
than you need.

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Valerio Bellizzomi
is this probe good ?

http://www.ebay.com/itm/142053837865?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649





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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Sarah Armstrong
thanks for posting Rene ,
your post will certianly help me , cover the areas iv'e missed
i'm also using stm32's

Sarah

On 12 August 2016 at 22:25, Rene Hopf  wrote:

>
> > On 12 Aug 2016, at 16:19, Florian Rist  wrote:
> >
> > Yes, I'd b interested, especially in OMM and OMI.
>
> this is an omm having a rather interesting conversation with an omp40.
> I haven't measured the OMI yet, but I have it all here.
> includes turn on, probe, and turn off.
> https://seafile.ist-wunderbar.com/f/af8b6dec5c/
> you can open the file with this software: https://www.saleae.com/downloads
>
> I also have some code for an stm32f4 which turns the probe on.
> https://github.com/rene-dev/stmbl/blob/master/src/comps/probe.comp#L70
> 
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and protocols
> are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. http://sdm.link/zohodev2dev
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>



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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Rene Hopf

> On 12 Aug 2016, at 16:19, Florian Rist  wrote:
> 
> Yes, I'd b interested, especially in OMM and OMI.

this is an omm having a rather interesting conversation with an omp40.
I haven't measured the OMI yet, but I have it all here.
includes turn on, probe, and turn off.
https://seafile.ist-wunderbar.com/f/af8b6dec5c/
you can open the file with this software: https://www.saleae.com/downloads

I also have some code for an stm32f4 which turns the probe on. 
https://github.com/rene-dev/stmbl/blob/master/src/comps/probe.comp#L70
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Jon Elson
On 08/12/2016 09:14 AM, Rene Hopf wrote:
> - The IR does not have modulation, so you cannot use tsop type receiver.
> - the signal is fast, you need a photodiode and TIA with a bandwidth of at 
> least 300khz
That should be fairly easy.
> The most difficult part is figuring out how to turn the probe on.
Seems the Blum has an on/off switch on the side.
> Then you have to build a TIA which reliably decodes the signal.
> Figuring out which bits are for probe and battery is relatively easy.
>
>
I'm hoping Blum's scheme is simpler, the TC50 is the oldest 
of their touch probe line.

And, it has red LEDs on the probe that flash when the probe 
is deflected, so I could always tap into that if the IR 
scheme is too complicated.

Thanks very much,

Jon


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Dave Caroline
I have an LT02 with LP2 probe that I need the protocol to switch it on
although for a backup I got a standard socket (FC3 iirc) that the LP2
can fit in so normal wired connection can be used

Dave Caroline

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Rene Hopf
Hi,
I recently set up various probing systems(Renishaw, Heidenhain, Mahrpos) with 
linuxcnc, and of course I could not resist reverse engineering the protocol.
All systems I observed had the following in common:
- sometimes the optical box is only the analog fronted, and the conversion 
happens in another box. sometimes it is all in one.
- The IR does not have modulation, so you cannot use tsop type receiver.
- the signal is fast, you need a photodiode and TIA with a bandwidth of at 
least 300khz
- the receiver is usually extremely overengineered, i.e Heidenhain uses a 
spartan FPGA in the unit….

The most difficult part is figuring out how to turn the probe on.
Then you have to build a TIA which reliably decodes the signal.
Figuring out which bits are for probe and battery is relatively easy.

I can provide dumps of OMM, OMI, Mahrpos and Heidenhain turn-on codes if anyone 
is interested.

Rene

> On 12 Aug 2016, at 15:22, Florian Rist  wrote:
> 
> Hi Sarah
> 
>> i had the same problem with a Renishaw ir probe , so i reverse
>> engineered the ir protocol
> 
> Oh, and did you publish your findings somewhere, or could you post them 
> here?
> 
> I'd be really interested, because I have a Renishaw probe but I don't 
> have the receiver (OMI). Well actually I have two Renishaw probes, but 
> only one receiver and reverse engineering the protocol is on my list of 
> things to do, but it will take long before I can find the time, to work 
> on it.
> 
> Did you work on the old (OMI receiver) or the new (OMI-2 receiver) 
> protocol?
> 
> See you
> Flo
> 
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Florian Rist
Hi Rene

> I can provide dumps of OMM, OMI, Mahrpos and Heidenhain turn-on codes
> if anyone is interested.

Yes, I'd b interested, especially in OMM and OMI.


See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Florian Rist
Hi Sarah

> i had the same problem with a Renishaw ir probe , so i reverse
> engineered the ir protocol

Oh, and did you publish your findings somewhere, or could you post them 
here?

I'd be really interested, because I have a Renishaw probe but I don't 
have the receiver (OMI). Well actually I have two Renishaw probes, but 
only one receiver and reverse engineering the protocol is on my list of 
things to do, but it will take long before I can find the time, to work 
on it.

Did you work on the old (OMI receiver) or the new (OMI-2 receiver) 
protocol?

See you
Flo

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Sarah Armstrong
forgot to add to my previous ,

they use an ir signal from the reciever box to switch the unit on
so long as the probe is recieving then it remains transmitting , on loss it
times out and switches off
this signal can include requesting the probe battery status etc , but i
have not yet decoded that





On 12 August 2016 at 09:11, Sarah Armstrong 
wrote:

> i had the same problem with a Renishaw ir probe , so i reverse engineered
> the ir protocol
> took me a few nights to sort it .
>
> they send a packet continuosly, and on contact touch the data stops
> in the packet is id , batt condition, and a checksum
>
> i'd guess they may have done something similar
>
>
>
>
>
> On 12 August 2016 at 07:57, Dave Caroline 
> wrote:
>
>> I have a Valeron probe that also had an infra red transmission, was
>> too lazy to reverse engineer and just cleaned the contacts and wired
>> direct, some probes have adjustable force, some are set to a high
>> force mine was mounted on CAT50 so is a brute.
>>
>> http://www.collection.archivist.info/searchv13.php?searchstr=valeron
>>
>> Dave Caroline
>>
>> 
>> --
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>> traffic
>> patterns at an interface-level. Reveals which users, apps, and protocols
>> are
>> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
>> J-Flow, sFlow and other flows. Make informed decisions using capacity
>> planning reports. http://sdm.link/zohodev2dev
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>>
>
>
>
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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Sarah Armstrong
i had the same problem with a Renishaw ir probe , so i reverse engineered
the ir protocol
took me a few nights to sort it .

they send a packet continuosly, and on contact touch the data stops
in the packet is id , batt condition, and a checksum

i'd guess they may have done something similar





On 12 August 2016 at 07:57, Dave Caroline 
wrote:

> I have a Valeron probe that also had an infra red transmission, was
> too lazy to reverse engineer and just cleaned the contacts and wired
> direct, some probes have adjustable force, some are set to a high
> force mine was mounted on CAT50 so is a brute.
>
> http://www.collection.archivist.info/searchv13.php?searchstr=valeron
>
> Dave Caroline
>
> 
> --
> What NetFlow Analyzer can do for you? Monitors network bandwidth and
> traffic
> patterns at an interface-level. Reveals which users, apps, and protocols
> are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. http://sdm.link/zohodev2dev
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>



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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-12 Thread Dave Caroline
I have a Valeron probe that also had an infra red transmission, was
too lazy to reverse engineer and just cleaned the contacts and wired
direct, some probes have adjustable force, some are set to a high
force mine was mounted on CAT50 so is a brute.

http://www.collection.archivist.info/searchv13.php?searchstr=valeron

Dave Caroline

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-11 Thread Andy Pugh


> On 12 Aug 2016, at 03:55, Jon Elson  wrote:
> 
> They note it takes 2 N side force and 7 N end force to 
> trigger the probe, which seems amazingly high!

2N is 7 ozf. 

And I agree, that seems high. 


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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-11 Thread Jon Elson
On 08/11/2016 10:15 PM, Ken Strauss wrote:
> See  https://www.google.ca/patents/WO2007028964A1
> The protocol may be more complicated than you think!
Well, that's Renishaw's RF link patent.  Blum also has an RF 
link on some probes, but the one I got is IR.

Hopefully, it will be a lot simpler.

Thanks,

Jon

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Re: [Emc-users] snagged touch probe on eBay - anybody know how to interface ?

2016-08-11 Thread Ken Strauss
See  https://www.google.ca/patents/WO2007028964A1
The protocol may be more complicated than you think!

> -Original Message-
> From: Jon Elson [mailto:el...@pico-systems.com]
> Sent: Thursday, August 11, 2016 10:56 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: [Emc-users] snagged touch probe on eBay - anybody know how to
> interface ?
>
> 
>
> I just managed to snag a Blum TC50 touch probe on eBay for
> $50 delivered.  Seems to be a $4000
> probe.  http://www.ebay.com/itm/272331012422
>
> Some videos show that it has green LEDs that blink once a second or so
when
> turned on, and red LEDs that flash when the probe contacts something.
Also,
> some IR LEDs that presumably flash on contact. This did NOT come with the
> remote IR pickup module.  Does anybody know what the characteristics of
the
> IR signal is?
>
> I'm guessing it just flashes the IR LEDs at some high frequency on probe
> contact, and so I can probably make a really simple pickup for it with
some IR
> photodiodes and an AC bandpass detector.
>
> They note it takes 2 N side force and 7 N end force to trigger the probe,
which
> seems amazingly high!
> Any comments?
>
> Thanks,
>
> Jon
>
>

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