Re: [Emc-users] eBay links Re: More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 23:54:35 Gregg Eshelman via Emc-users wrote:

> Report that security hole to eBay.

Have you ever tried to deal with ebay security? Waste of time. Even if 
you get a human, their way is right and the only way. BTDT even GTTS.

> The site should check for an 
> authorization cookie etc and if not found,, don't load the site with
> your account logged in.
>
>
> On Thursday, May 10, 2018, 6:16:17 PM MDT, Gene Heskett
>  wrote:
>
>  On Thursday 10 May 2018 07:22:40 Gene Heskett wrote:
>
> The following msg contains private info that has already allowed
> another person to log into my ebay account with the potential of doing
> anything I might do. Its the several line  long link to a purchase I
> made, and should never have become public.  And all he had to do was
> click on this link.
>
> So I would appreciate it if it could be deleted from any storage media
> under your control.
>
> > Greetings;
> >
> > Looking around for some more cheap metric ER-20 stuff, I stumbled
> > over a kit on ebay that had the TTS like adapter as part of the kit.
> > So I bought 2 sets of them. $40 a copy, or $79.something for 2 sets.
> >
> > The adapter looked like it was the std 3/4 diameter stem. But when
> > they arrived, the 3/4" diameter stem had a full length flat, like it
> > was intended to be used in a spindle with a 3/4" bore and set
> > screws.
> >
> > This would, if a 3/4" R8 collet could be found with a D shaped bore,
> > be yet another way to remove one potential slip point in trying to
> > hold a tap for rigid tapping.
> >
> > The url if it still exists, and if you look close, that flat on the
> > shank can be seen, is:
>
> --
> Check out the vibrant tech community on one of the world's
> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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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] More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 22:23:56 Erik Christiansen wrote:

> On 10.05.18 19:02, Gene Heskett wrote:
> > Anyway, I've made a box that can corral 100 of the "tap hats", all
> > of which now have a 4mm cap screw in the side, whose head matches
> > the slot I cut in the lip of the 7/8" R8's. So that problem is
> > partially addressed.
>
> That's one R8 collet for each size range of tap hats, I figure.
> (Horizontal hold on the picture is a bit unsteady down here.)
>
> > Thinking on finding the right sized drill for the axial thru-hole of
> > the tap hat, and not yet investing in a quality (if such a beast
> > exists today) set of letter drills, the thought comes to mind of
> > EDM'ing 1 lengthwise slot all the way to the bore, and 2 more about
> > 25 thou short of the bore so I could use the collets compression to
> > close the gap and arrive at a more accurately centered tap, with no
> > rattle room left.  I like the idea, but not the time involved since
> > those 3 slots will eat a days work per "hat" made. Skip that idea.
> > But sleep on it.
>
> What's the thinnest small slitting saw you can lay your hands on?
> Mebbe something ex-dremel? It only needs to be big enough to slice
> through the hide of a tap hat.
>
> But, whoa. I'm also not fully across the need for bore adjustment. As
> taps are ground from a few stock sizes, only those few sizes of tap
> hat bore are needed. While I found a drill close enough for one size,
> and bored the other, if I had to make a bunch of the latter, I'd
> probably make up a D-bit reamer, and keep it with the tap hat kit.

Looking at my tap collection, I'd guess it will take not less than 10 
different drills to bore the thru holes to fit the tap shanks. I have a 
very mixed origin tap collection, And the metric stuff all is Chinese, 
quality from junk to very good.

And I'm trying to dream up a way to mill a square in the rear, where the 
square but of the tap will be, and since I have one of those kilowatt 
induction heaters, figure out how to pour a lower melting point alloy of 
some sort to fix the square tap butt into the square in the rear of the 
brass holder, as thats a bunch easier than all that drilling and tapping 
for set screws. High silver alloy solder comes to mind as its some 
pretty tough stuff. But would that heat, maybe 850-900F kill the tap?

If I do the set screw thing, I'll need them in 2mm to 6mm, or maybe even 
8mm for the biggest ones. Thats not counting a 20 kg bag of 1.5" to 
4"ers for pipe I found while cleaning up the old home place after Dee's 
brother died. None in good shape, broken teeth etc. He worked for one of 
the local gas companies as a mech at a pumping station.

> > Go stuff a weeks worth of pills into my pill-tainer, and maybe
> > something will come to mind.
>
> Here it's carting firewood for the winter closing in; 200 armloads
> stacked up under the eaves, now that the fire danger of a desperately
> dry autumn has been replaced by rain and sleet. (Prayers to Thor
> answered.)
>
> Erik

We got drowned here for around an hour today too, 1.45" in an hour. 
Couldn't keep track of a tv show because half of it was covered by storm 
warnings being issued by either the Pittsburg PA WB or the Charleston WV 
WB. I am just about centered between them.

I didn't like the looks of the sky when I left to get a loaf of bread and 
a paper and something I could nuke for our dinner, and had to sit out 
the worst of it trapped in my pickup in the grocery store parking lot.
And the same back at the house. I got soaked in the 50 feet plus opening 
the back door of the king cab to retrieve the sacks, run for the house. 
30 minutes later, full sunshine again. Crazy weather.

Stay warm Erik, it should be getting toward keeping the wood stove 
crackling in your neck of the woods. Its been up as high as 89F here 
already.

-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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[Emc-users] eBay links Re: More on er-20 stuffs

[Gregg Eshelman via Emc-users]

Report that security hole to eBay. The site should check for an authorization 
cookie etc and if not found,, don't load the site with your account logged in.
 

On Thursday, May 10, 2018, 6:16:17 PM MDT, Gene Heskett 
 wrote:  
 
 On Thursday 10 May 2018 07:22:40 Gene Heskett wrote:

The following msg contains private info that has already allowed another 
person to log into my ebay account with the potential of doing anything 
I might do. Its the several line  long link to a purchase I made, and 
should never have become public.  And all he had to do was click on this 
link.

So I would appreciate it if it could be deleted from any storage media 
under your control.

> Greetings;
>
> Looking around for some more cheap metric ER-20 stuff, I stumbled over
> a kit on ebay that had the TTS like adapter as part of the kit. So I
> bought 2 sets of them. $40 a copy, or $79.something for 2 sets.
>
> The adapter looked like it was the std 3/4 diameter stem. But when
> they arrived, the 3/4" diameter stem had a full length flat, like it
> was intended to be used in a spindle with a 3/4" bore and set screws.
>
> This would, if a 3/4" R8 collet could be found with a D shaped bore,
> be yet another way to remove one potential slip point in trying to
> hold a tap for rigid tapping.
>
> The url if it still exists, and if you look close, that flat on the
> shank can be seen, is:
  
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Re: [Emc-users] 7i90 not listed in pnc

[jeremy youngs]

Manual in hand, trying this, and I'm here.

  svts.jpg


How do I get access to this extracted bitfile?
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Re: [Emc-users] 7i90 not listed in pnc

[jeremy youngs]

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Re: [Emc-users] 7i90 not listed in pnc

[jeremy youngs]

First order of business is probably the mesaflash session. Get, from the
mesanet site, 7i90.zip. I unziped it to the Public subdir in my home
directory, which will give you a 7i90 directory.

cd 7i90/configs/hostmot2$, and an ls will show you quite a lengthy list
of files. There ought to be a README describing which does what, but
there isn't. You'll  find mesaflash in 7i90/utils/linux of that 7i90.zip


All of that is done . I CD this as above with forgon error, does not exist
tried the / in the path a few different ways.

  not found.jpg



Peter, that displayed all of my config, likely as it should have, so
correct me if I'm wrong please. Getting this bit file from my home
directory, to the 7i90 is about my last hurdle to overcome before being
able to wire this up. The write command seems simple enough . Thank you
fellas
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Re: [Emc-users] More on er-20 stuffs

[Erik Christiansen]

On 10.05.18 19:02, Gene Heskett wrote:
> Anyway, I've made a box that can corral 100 of the "tap hats", all of 
> which now have a 4mm cap screw in the side, whose head matches the slot 
> I cut in the lip of the 7/8" R8's. So that problem is partially 
> addressed.

That's one R8 collet for each size range of tap hats, I figure.
(Horizontal hold on the picture is a bit unsteady down here.)

> Thinking on finding the right sized drill for the axial thru-hole of the 
> tap hat, and not yet investing in a quality (if such a beast exists 
> today) set of letter drills, the thought comes to mind of EDM'ing 1 
> lengthwise slot all the way to the bore, and 2 more about 25 thou short 
> of the bore so I could use the collets compression to close the gap and 
> arrive at a more accurately centered tap, with no rattle room left.  I 
> like the idea, but not the time involved since those 3 slots will eat a 
> days work per "hat" made. Skip that idea. But sleep on it.

What's the thinnest small slitting saw you can lay your hands on? Mebbe
something ex-dremel? It only needs to be big enough to slice through the
hide of a tap hat.

But, whoa. I'm also not fully across the need for bore adjustment. As
taps are ground from a few stock sizes, only those few sizes of tap hat
bore are needed. While I found a drill close enough for one size, and
bored the other, if I had to make a bunch of the latter, I'd probably
make up a D-bit reamer, and keep it with the tap hat kit.

> Go stuff a weeks worth of pills into my pill-tainer, and maybe something 
> will come to mind.

Here it's carting firewood for the winter closing in; 200 armloads
stacked up under the eaves, now that the fire danger of a desperately
dry autumn has been replaced by rain and sleet. (Prayers to Thor answered.)

Erik

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Re: [Emc-users] 7i90 not listed in pnc

[Peter C. Wallace]

On Thu, 10 May 2018, jeremy youngs wrote:


Date: Thu, 10 May 2018 20:32:24 -0500
From: jeremy youngs 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: Re: [Emc-users] 7i90 not listed in pnc

 what file, .jpg

1st is transport layer. Second is trying to get 7i9) bit file loaded.
The path is correct and the file is in that location.
Any suggestions?


transport layer is --epp

so

sudo mesaflash --device 7i90 --addr 0x378 --epp --readhmid

mesaflash --help lists all mesaflash options



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Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.


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Re: [Emc-users] 7i90 not listed in pnc

[Gene Heskett]

On Thursday 10 May 2018 21:32:24 jeremy youngs wrote:

>   what file, .jpg
> w?usp=drivesdk> 1st is transport layer. Second is trying to get 7i9)
> bit file loaded. The path is correct and the file is in that location.
> Any suggestions?

No. The path is not correct. When anchoring the path, you must start the 
path spec with a /, unless that path starts in the directory you are 
cd'd to. Another exception would be if you have cd'd into the directory 
the file is in, in which case you preface that filename with a ./


Thats a handy way to make sure you are using that file, and not some 
other possibly older file that just happens to have the same name that 
is findable someplace else in the $PATH in effect.

-- 
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] 7i90 not listed in pnc

[jeremy youngs]

  what file, .jpg

1st is transport layer. Second is trying to get 7i9) bit file loaded.
The path is correct and the file is in that location.
Any suggestions?
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Re: [Emc-users] More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 07:22:40 Gene Heskett wrote:

The following msg contains private info that has already allowed another 
person to log into my ebay account with the potential of doing anything 
I might do. Its the several line  long link to a purchase I made, and 
should never have become public.  And all he had to do was click on this 
link.

So I would appreciate it if it could be deleted from any storage media 
under your control.

> Greetings;
>
> Looking around for some more cheap metric ER-20 stuff, I stumbled over
> a kit on ebay that had the TTS like adapter as part of the kit. So I
> bought 2 sets of them. $40 a copy, or $79.something for 2 sets.
>
> The adapter looked like it was the std 3/4 diameter stem. But when
> they arrived, the 3/4" diameter stem had a full length flat, like it
> was intended to be used in a spindle with a 3/4" bore and set screws.
>
> This would, if a 3/4" R8 collet could be found with a D shaped bore,
> be yet another way to remove one potential slip point in trying to
> hold a tap for rigid tapping.
>
> The url if it still exists, and if you look close, that flat on the
> shank can be seen, is:
>
> c08674ae7428756b5f=44688966138=https%3A%2F%2Fwww.ebay.com%2Fsign
>in%2Fg%2Fv%255E1.1%2523i%255E1%2523I%255E3%2523f%255E0%2523p%255E3%2523
>r%255E1%2523t%255EUl4xMF83OjNDMjBBMzE5OTc4RTI1QjVBQzJBMEI0MTZERDFBNUJGX
>zJfMSNFXjI2MA%253D%253D=bu=bu>
>
> Has anyone else seen such a R8 critter, and what would it be called so
> it can be found in the throngs of such stuff from the asian's?

-- 
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] Zeiss touch probes

[Ken Strauss]

Actually the Renishaw design doesn't work that well due to lobeing issues. 
That is, the break point differs due to the angle of the kinematic support 
with respect to the approach to the object being measured. That is the reason 
for the superiority of the Zeiss design.
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: Thursday, May 10, 2018 6:50 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Zeiss touch probes
>
> On 10 May 2018 at 23:45, Ken Strauss  wrote:
> > I have no definite knowledge of the Zeiss probes but isn't the
> > mechanical switch just to indicate an Estop condition for serious
> > overtravel? I believe that there are piezo sensors for the actual probing.
>
> There are, but the original Renishaw design works fine with just the
> mechanical contacts.
>
> I might try to make the piezo work eventually, but that means designing,
> building and testing a charge-amp.
>
> --
> 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
>
> --
> Check out the vibrant tech community on one of the world's most engaging
> tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users



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Re: [Emc-users] More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 17:24:41 Gregg Eshelman via Emc-users wrote:

> To use those with a TTS or other 3/4" R8 (or 4C) collet you'll need
> adapter rings. Like these.
> https://www.tormach.com/store/index.php?app=ecom=prodshow=32432
> They used to have thinner ones that had to be glued on with epoxy.
> Looks like they're going (or already have gone) to making only the ATC
> compatible TTS tooling.
>
> Since you have a CNC lathe it shouldn't be difficult to make your own
> rings, any dimensions you need to work on the mill.
>
> Some quick searching turned up nothing of collets with D shaped holes.
> Take a standard 3/4" R8 and have a couple of holes EDM cut so you can
> pin a piece of steel inside?

What I had in mind would have resembled a larger disk, 5/16" or so, with 
a 50 tpi thread on its periphery, and a matching hole, threaded to 
match, but that would have to fit between the slots, or maybe straddle a 
slot so when it was compressed by pulling up the drawbolt, it would 
squeeze down on the threads. But getting a balance so as not to pull it 
eccentric, is the subject of bad dreams too. Not worth pursueing IMO.

Anyway, I've made a box that can corral 100 of the "tap hats", all of 
which now have a 4mm cap screw in the side, whose head matches the slot 
I cut in the lip of the 7/8" R8's. So that problem is partially 
addressed.

Thinking on finding the right sized drill for the axial thru-hole of the 
tap hat, and not yet investing in a quality (if such a beast exists 
today) set of letter drills, the thought comes to mind of EDM'ing 1 
lengthwise slot all the way to the bore, and 2 more about 25 thou short 
of the bore so I could use the collets compression to close the gap and 
arrive at a more accurately centered tap, with no rattle room left.  I 
like the idea, but not the time involved since those 3 slots will eat a 
days work per "hat" made. Skip that idea. But sleep on it.

Go stuff a weeks worth of pills into my pill-tainer, and maybe something 
will come to mind.

Thanks all.

> On Thursday, May 10, 2018, 5:26:34 AM MDT, Gene Heskett
>  wrote: Greetings;
>
> Looking around for some more cheap metric ER-20 stuff, I stumbled over
> a kit on ebay that had the TTS like adapter as part of the kit. So I
> bought 2 sets of them. $40 a copy, or $79.something for 2 sets.
>
> The adapter looked like it was the std 3/4 diameter stem. But when
> they arrived, the 3/4" diameter stem had a full length flat, like it
> was intended to be used in a spindle with a 3/4" bore and set screws.
>
> This would, if a 3/4" R8 collet could be found with a D shaped bore,
> be yet another way to remove one potential slip point in trying to
> hold a tap for rigid tapping.
>
> Has anyone else seen such a R8 critter, and what would it be called so
> it can be found in the throngs of such stuff from the asian's?
>
> --
> Check out the vibrant tech community on one of the world's
> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> 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 

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Re: [Emc-users] Zeiss touch probes

[andy pugh]

On 10 May 2018 at 23:45, Ken Strauss  wrote:
> I have no definite knowledge of the Zeiss probes but isn't the mechanical
> switch just to indicate an Estop condition for serious overtravel? I believe
> that there are piezo sensors for the actual probing.

There are, but the original Renishaw design works fine with just the
mechanical contacts.

I might try to make the piezo work eventually, but that means
designing, building and testing a charge-amp.

-- 
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] Zeiss touch probes

[Ken Strauss]

I have no definite knowledge of the Zeiss probes but isn't the mechanical 
switch just to indicate an Estop condition for serious overtravel? I believe 
that there are piezo sensors for the actual probing.

> -Original Message-
> From: Rene Hopf [mailto:reneh...@mac.com]
> Sent: Thursday, May 10, 2018 6:34 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Zeiss touch probes
>
>
>
> > On 11. May 2018, at 00:29, Andrew  wrote:
> >
> >> So, working purely as a touch-probe they show 76k? when un-triggered
> >> and 90k? when triggered. So I need to find a way to convert that to a
> >> digital input for LinuxCNC.
> >> (I may well just ignore the piezo element)
>
> the inputs on the stmbl are analog, and have configurable threshold voltage.
> --
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Re: [Emc-users] Zeiss touch probes

[andy pugh]

On 10 May 2018 at 23:14, Rene Hopf  wrote:

> beep mode is usually diode mode, and will show you voltage drop and not ohms.

Diode mode is a separate setting on this meter. (Fluke 15B+)

-- 
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] Zeiss touch probes

[Rene Hopf]

> On 11. May 2018, at 00:29, Andrew  wrote:
> 
>> So, working purely as a touch-probe they show 76kΩ when un-triggered
>> and 90kΩ when triggered. So I need to find a way to convert that to a
>> digital input for LinuxCNC.
>> (I may well just ignore the piezo element)

the inputs on the stmbl are analog, and have configurable threshold voltage.
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Re: [Emc-users] Zeiss touch probes

[Andrew]

2018-05-11 1:08 GMT+03:00 andy pugh :

>
> It turns out that the NC contacts are part of a resistor network.
> There is a 90k across the contacts and a 470k in series. That was why
> my beep-test didn't work (I had not realised that putting my
> multimeter in beep mode also locks it in single-ohms mode, so the
> display was showing nothing.)
>
> So, working purely as a touch-probe they show 76kΩ when un-triggered
> and 90kΩ when triggered. So I need to find a way to convert that to a
> digital input for LinuxCNC.
> (I may well just ignore the piezo element)
>
> Arduino?
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Re: [Emc-users] Zeiss touch probes

[Rene Hopf]

> On 11. May 2018, at 00:08, andy pugh  wrote:
> 
> (I had not realised that putting my
> multimeter in beep mode also locks it in single-ohms mode, so the
> display was showing nothing.)

beep mode is usually diode mode, and will show you voltage drop and not ohms.
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Re: [Emc-users] Zeiss touch probes

[andy pugh]

On 10 May 2018 at 21:09, Andrew  wrote:

>> The interface is a 5-ring connector like a jack plug.
>> I haven't managed to figure out which ring is which, and Zeiss are not
>> saying.

> So it must be two NC contacts and the rest for the piezo.

Yes, I figured that much out, the question was which is which.

I damaged one trying to get it apart, so decided to simply part-off
the top on the lathe. (They really are not designed for disassembly).

It turns out that the NC contacts are part of a resistor network.
There is a 90k across the contacts and a 470k in series. That was why
my beep-test didn't work (I had not realised that putting my
multimeter in beep mode also locks it in single-ohms mode, so the
display was showing nothing.)

So, working purely as a touch-probe they show 76kΩ when un-triggered
and 90kΩ when triggered. So I need to find a way to convert that to a
digital input for LinuxCNC.

(I may well just ignore the piezo element)

-- 
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] More on er-20 stuffs

[Ken Strauss]

As a Tormach owner I may be able to shed a little light on their TTS
holders:
Tormach have only made ATC compatible holders (with groove for the gripper)
for at least 3 years. I have used some of the thinner TTS adapter rings and
found them unsatisfactory. It was difficult to ensure that the rings were
perpendicular to the shaft plus the supplied epoxy was weak. The current
shrink fit TTS rings that Gregg mentioned work well but are expensive at
us$17.50 + shipping. Another approach is to use shaft collars
(https://www.amazon.com/Single-Split-Shaft-Collar-Black/dp/B01MEENEFV for
one source). With the collars you will need to turn/mill away some material
adjacent to the shank to provide clearance for the nose of the R8 collet
used to retain the TTS holder.

> -Original Message-
> From: Gregg Eshelman via Emc-users [mailto:emc-
> us...@lists.sourceforge.net]
> Sent: Thursday, May 10, 2018 5:25 PM
> To: Enhanced Machine Controller (EMC)
> Cc: Gregg Eshelman
> Subject: Re: [Emc-users] More on er-20 stuffs
>
> To use those with a TTS or other 3/4" R8 (or 4C) collet you'll need
adapter
> rings. Like these.
>
> https://www.tormach.com/store/index.php?app=ecom=prodshow=3
> 2432
> They used to have thinner ones that had to be glued on with epoxy. Looks
like
> they're going (or already have gone) to making only the ATC compatible TTS
> tooling.
>
> Since you have a CNC lathe it shouldn't be difficult to make your own
rings,
> any dimensions you need to work on the mill.
>
> Some quick searching turned up nothing of collets with D shaped holes.
Take a
> standard 3/4" R8 and have a couple of holes EDM cut so you can pin a piece
of
> steel inside?
>
> On Thursday, May 10, 2018, 5:26:34 AM MDT, Gene Heskett
>  wrote:
>  Greetings;
>
> Looking around for some more cheap metric ER-20 stuff, I stumbled over a
kit
> on ebay that had the TTS like adapter as part of the kit. So I bought 2
sets of
> them. $40 a copy, or $79.something for 2 sets.
>
> The adapter looked like it was the std 3/4 diameter stem. But when they
> arrived, the 3/4" diameter stem had a full length flat, like it was
intended to
> be used in a spindle with a 3/4" bore and set screws.
>
> This would, if a 3/4" R8 collet could be found with a D shaped bore, be
yet
> another way to remove one potential slip point in trying to hold a tap for
rigid
> tapping.
>
> The url if it still exists, and if you look close, that flat on the shank
can be seen,
> is:
>
>  9c08674ae7428756b5f=44688966138=https%3A%2F%2Fwww.ebay.c
> om%2Fsignin%2Fg%2Fv%255E1.1%2523i%255E1%2523I%255E3%2523f%255
> E0%2523p%255E3%2523r%255E1%2523t%255EUl4xMF83OjNDMjBBMzE5OT
> c4RTI1QjVBQzJBMEI0MTZERDFBNUJGXzJfMSNFXjI2MA%253D%253D
> =bu=bu>
>
> Has anyone else seen such a R8 critter, and what would it be called so it
can
> be found in the throngs of such stuff from the asian's?
>
>

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Re: [Emc-users] More on er-20 stuffs

[Gregg Eshelman via Emc-users]

To use those with a TTS or other 3/4" R8 (or 4C) collet you'll need adapter 
rings. Like these.
 https://www.tormach.com/store/index.php?app=ecom=prodshow=32432
They used to have thinner ones that had to be glued on with epoxy. Looks like 
they're going (or already have gone) to making only the ATC compatible TTS 
tooling.

Since you have a CNC lathe it shouldn't be difficult to make your own rings, 
any dimensions you need to work on the mill.

Some quick searching turned up nothing of collets with D shaped holes. Take a 
standard 3/4" R8 and have a couple of holes EDM cut so you can pin a piece of 
steel inside?

On Thursday, May 10, 2018, 5:26:34 AM MDT, Gene Heskett 
 wrote:  
 Greetings;

Looking around for some more cheap metric ER-20 stuff, I stumbled over a 
kit on ebay that had the TTS like adapter as part of the kit. So I 
bought 2 sets of them. $40 a copy, or $79.something for 2 sets.

The adapter looked like it was the std 3/4 diameter stem. But when they 
arrived, the 3/4" diameter stem had a full length flat, like it was 
intended to be used in a spindle with a 3/4" bore and set screws.

This would, if a 3/4" R8 collet could be found with a D shaped bore, be 
yet another way to remove one potential slip point in trying to hold a 
tap for rigid tapping.

The url if it still exists, and if you look close, that flat on the shank 
can be seen, is: 



Has anyone else seen such a R8 critter, and what would it be called so it 
can be found in the throngs of such stuff from the asian's?
  
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Re: [Emc-users] More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 09:27:57 Bengt Sjölund wrote:

> Why not go for a proper tool?
>
> https://www.aliexpress.com/item/J41-Tapping-chuck-J4124-R8/32434340752
>.html
>
> Cheers
>
> Bengt

3 reasons, first being the price in the middle of the page, and several 
of its "tap saving" features would not get along with the theory of 
rigid tapping. Only if it could be hooked up to LCNC in such a way that 
the first 5 degrees of tap saving slippage could be made to simulate 
g33.1 reaching the depth it was told to go, so it would set a stop flag, 
but back out of the hole first.  That $350 toy has no place in a cnc 
controlled shop, only in an all manual shop might it be usefull.

The 3rd reason is that the one purchase I did make thru aliexpress.com 4 
or 5 years back, was not a pleasing purchase. And no way to access a 
human to see if an agreement could be reached, as what I bought was not 
what I received. The product I got was similar, but was not what I 
bought. Diecast or extruded, not machined, timing belt pulley's that had 
20 thou of runout? Flanges staked on, and came off almost too easily. 
They are not now on the premises, having been recycled long ago. Msgs 
sent to the contact address on their web page went into a black hole, no 
reply was ever received.

> Den 2018-05-10 kl. 15:19, skrev Gene Heskett:
> > On Thursday 10 May 2018 08:02:57 andy pugh wrote:
> >> On 10 May 2018 at 12:22, Gene Heskett  wrote:
> >>> This would, if a 3/4" R8 collet could be found with a D shaped
> >>> bore, be yet another way to remove one potential slip point in
> >>> trying to hold a tap for rigid tapping.
> >>
> >> Buy a small-bore R8 collet and have it wire spark-eroded to a
> >> D-shape, perhaps?
> >>
> >> (You could consider plunge-eroding it yourself, I suppose)
> >
> > Shirley, you jest. ;-)  Yes, I could do it, but how would one go
> > about maintaining the concentricity in a home shop environment?
> > Sounds fairly impossible to me. With what I have for a psu, and the
> > lack of suitable pumping to keep the fluid clean enough to work
> > well, it would take quite some time to remove that much metal from
> > 300 degrees of a bore. On that, unless we can tie the feed into the
> > achieved spark rate, and profile the electrode movement to
> > compensate for electrode wear...  lots of ellipses there, not to
> > mention days of runtime. I think I'll pass.

-- 
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] Zeiss touch probes

[Andrew]

2018-05-10 22:56 GMT+03:00 andy pugh :

> Does anyone know how the Zeiss RST-P touch-probes work? As well as the
> normal 3-way ball and bars kinematic mount they have a piezo element.
> The interface is a 5-ring connector like a jack plug.
> I haven't managed to figure out which ring is which, and Zeiss are not
> saying.
>

They say
https://www.zeiss.com/metrology/products/sensors/on-cmm/tactile-scanning-probe/rst-p.html

ZEISS RST-P works according to a dual principle. This means it delivers the
> actual probing pulse from the Piezo-electric elements located in front of
> the kink point. The three-point bearing also serves as a mechanical kink
> point that verifies probing and protects ZEISS RST-P from damage caused by
> contact with the workpiece and collisions.

Moreover, the deflection forces caused by the bearings and direction do not
> influence the measuring result: ZEISS RST-P delivers the same accuracy in
> all probing directions. Special calibration is not required for slanted
> measuring or probing jobs.


So it must be two NC contacts and the rest for the piezo.
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[Emc-users] Zeiss touch probes

[andy pugh]

Does anyone know how the Zeiss RST-P touch-probes work? As well as the
normal 3-way ball and bars kinematic mount they have a piezo element.
The interface is a 5-ring connector like a jack plug.
I haven't managed to figure out which ring is which, and Zeiss are not saying.

-- 
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] 7i90 not listed in pnc

[jeremy youngs]

Yahoo, Yahoo !!!

  success.jpg


Thank you so much guys !!
Now if I'm correct the next thing will be mesaflash the firmware version,
then on to building cables and count these encoders so I have good numbers
to work with .
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Re: [Emc-users] More on er-20 stuffs

[MC Cason via Emc-users]

Gene,

  You may want to trim your links down.  I haven't clicked on anything 
in it, but that link has the login credentials for someone named Maurice.



On 05/10/2018 06:22 AM, Gene Heskett wrote:





--
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Eagle3D - github.com/mcason/Eagle3D
Lathe Electronic Edge Finder - raccoonelectronics.com



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Re: [Emc-users] More on er-20 stuffs

[Bengt Sjölund]

Why not go for a proper tool?

https://www.aliexpress.com/item/J41-Tapping-chuck-J4124-R8/32434340752.html

Cheers

Bengt


Den 2018-05-10 kl. 15:19, skrev Gene Heskett:

On Thursday 10 May 2018 08:02:57 andy pugh wrote:


On 10 May 2018 at 12:22, Gene Heskett  wrote:

This would, if a 3/4" R8 collet could be found with a D shaped bore,
be yet another way to remove one potential slip point in trying to
hold a tap for rigid tapping.

Buy a small-bore R8 collet and have it wire spark-eroded to a D-shape,
perhaps?

(You could consider plunge-eroding it yourself, I suppose)

Shirley, you jest. ;-)  Yes, I could do it, but how would one go about
maintaining the concentricity in a home shop environment? Sounds fairly
impossible to me. With what I have for a psu, and the lack of suitable
pumping to keep the fluid clean enough to work well, it would take quite
some time to remove that much metal from 300 degrees of a bore. On that,
unless we can tie the feed into the achieved spark rate, and profile the
electrode movement to compensate for electrode wear...  lots of ellipses
there, not to mention days of runtime. I think I'll pass.





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Re: [Emc-users] More on er-20 stuffs

[Gene Heskett]

On Thursday 10 May 2018 08:02:57 andy pugh wrote:

> On 10 May 2018 at 12:22, Gene Heskett  wrote:
> > This would, if a 3/4" R8 collet could be found with a D shaped bore,
> > be yet another way to remove one potential slip point in trying to
> > hold a tap for rigid tapping.
>
> Buy a small-bore R8 collet and have it wire spark-eroded to a D-shape,
> perhaps?
>
> (You could consider plunge-eroding it yourself, I suppose)

Shirley, you jest. ;-)  Yes, I could do it, but how would one go about 
maintaining the concentricity in a home shop environment? Sounds fairly 
impossible to me. With what I have for a psu, and the lack of suitable 
pumping to keep the fluid clean enough to work well, it would take quite 
some time to remove that much metal from 300 degrees of a bore. On that, 
unless we can tie the feed into the achieved spark rate, and profile the 
electrode movement to compensate for electrode wear...  lots of ellipses 
there, not to mention days of runtime. I think I'll pass. 


-- 
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] More on er-20 stuffs

[andy pugh]

On 10 May 2018 at 12:22, Gene Heskett  wrote:

> This would, if a 3/4" R8 collet could be found with a D shaped bore, be
> yet another way to remove one potential slip point in trying to hold a
> tap for rigid tapping.

Buy a small-bore R8 collet and have it wire spark-eroded to a D-shape, perhaps?

(You could consider plunge-eroding it yourself, I suppose)

-- 
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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[Emc-users] More on er-20 stuffs

[Gene Heskett]

Greetings;

Looking around for some more cheap metric ER-20 stuff, I stumbled over a 
kit on ebay that had the TTS like adapter as part of the kit. So I 
bought 2 sets of them. $40 a copy, or $79.something for 2 sets.

The adapter looked like it was the std 3/4 diameter stem. But when they 
arrived, the 3/4" diameter stem had a full length flat, like it was 
intended to be used in a spindle with a 3/4" bore and set screws.

This would, if a 3/4" R8 collet could be found with a D shaped bore, be 
yet another way to remove one potential slip point in trying to hold a 
tap for rigid tapping.

The url if it still exists, and if you look close, that flat on the shank 
can be seen, is: 



Has anyone else seen such a R8 critter, and what would it be called so it 
can be found in the throngs of such stuff from the asian's?

-- 
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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