Re: [Emc-users] W axis Setup

[Clint Washburn]

Robert,
Thanks that was exactly what I was looking for.  How do you handle the tool
changers?   I am using classicladder and it seems to work well.   The turret
in the video looks similar to the W axis on my Hitachi Seiki Lathe.  

Clint

-Original Message-
From: robert [mailto:rob...@innovative-rc.com] 
Sent: Sunday, January 15, 2012 3:14 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] W axis Setup

hi
yes i have two lathes with W, they are real turrets W only see
http://www.youtube.com/watch?v=swulPjzzRQA

W axis screws back plot up abit when u move the W it moves the backplot
screen by that ammount.. but code runs normal so just have to take that into
account the backplot will not be as code runs..

see here part of my ini i missed alot out to make it easyer to see
*http://pastebin.com/wA5WmMvu*

unless u wish to make a patch to try sort that out.. seperate the XZ and VW
plots..
i have no idea how todo that..

robert

On 15/01/2012 20:22, Clint Washburn wrote:
> Has anyone setup a lathe with a W axis.  On my lathe the W axis is a 
> Tailstock/drilling turret.  I cannot seem to find any documentation on 
> how to set this up in AXIS.  From what I read so far I have to set up 
> the ini file with [AXIS_0] through [AXIS_8] and leave the ones blank 
> that would be unused.  Can anyone post an .ini file that they use with 
> a W axis.  Also how does axis handle the W axis graphically?


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Re: [Emc-users] tapping problem?

[gene heskett]

On Monday, January 16, 2012 11:00:35 PM Jon Elson did opine:

> gene heskett wrote:
> > That was when I learned about EDM to remove the taps. :)  Slow, but
> > does the job without hurting the hole.  I have since built a better
> > PSU for that, works nicely but you can hear it running blocks away,
> > very _VERY_ noisy, estimated 140db inside the teeny shop I have.
> 
> I got to see Ben Fleming's pulser EDM at the CNC Workshop last June (?)
> in Ann Arbor.
> it made amazing progress in steel, much faster than RC EDMs.  I think it
> could probably
> remove a small tap in 15-30 minutes, and made just a little sizzling
> noise, like cooking
> bacon.  Nowhere near 140 dB!  He has a book and a blank board, I am
> working on
> making one.
> 
> Jon

In fairness, and to uphold my geek cred, I'll have to admit that a 10uf 
cap, a 25 ohm 200 watts resistor and 80 volts is a wee bit much.  80 volts, 
maybe, but the cap needs to drop to maybe half a mic, which would raise the 
discharge frequency far enough we'd deafen dogs & cats half a block away.  
I'd say that it would still be hard on ears though.  At 77, there is one 
store here in town that still has an ultrasonic burglar alarm.  They run at 
44 kilohertz and flood the room with about 5 watts of power.  I may be the 
only person alive who has asked them to please turn it completely off 
during the business day.  My eardrums get a tight feeling and I get a 
headache in just a couple of minutes in there.

But this current rig can bore a 1/4" hole thru the web of a $40 table saw 
blade in about 3 minutes/hole once the tape ring dam was set & filled with 
K1.  Nice clean hole too.  I was mounting it on my rotary table so I could 
resharpen the saw blade.  I guess it was one of those things I did just to 
keep me out of the bars.  ;-)
> 
> 
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Cheers, Gene
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Re: [Emc-users] OT - Die Grinder Collets

[gene heskett]

On Monday, January 16, 2012 10:32:12 PM BRIAN GLACKIN did opine:

> Ouch.  Plays heck with my SS check.  How is the run out on those?  I
> have
> 
> > measured above 20 thou if I just shove it in and tighten, and when
> > dealing with solid carbide wood router bits I have been able to turn
> > those in the collect and usually get it down around 5 thou.  Still
> > way too sloppy but it carves mortise and tenon joints in wood ok. 
> > Using similar mills from Hemly, not much can be gained to rotating
> > them in the collet.
> 
> Gene,
> 
> I am primarily cutting MDF and plywood (2d) with a 1/8th carbide
> endmill, so I am rarely worried about the runout.  Plus I would need to
> buy an indicator to figure it out.  I have cut steel screw heads (by
> accident) and I get a surprisingly smooth surface.   Most of the time,
> I am happy if I get the cut code right.  My largest runs have been
> christmas ornament blanks for the kids and cub scouts to paint.
> 
You are working with a bigger gantry I assume?

> My biggest problem is with the collet slipping after my first cuts.  I
> need to make sure I always snug up the collet after the few minutes of
> starting the router.

I fight with that on this HF die grinder continuously when its in use.  A 
.250" by 1.25" long 2 flute upcut spiral, TiN coated mill will walk out of 
that collet about 5 thou for every tenon I cut on the end of a poplar 
stick.  I solved the tenon length problem by parking the head back at 
z=0.000, and run the stick up against the end of the bit, with all the 
sticks precut to the exact length + 2X tenon length.  But I still need to 
reset the mill in the collet about every 10 sticks processed, 20 tenons 
IOW.  That run was for about 48 sticks plus 5 or 6 spares in case I didn't 
like where that knot was. :)

And that is when tightening that collet, with a film of never-sieze on the 
collets ramps, with a box end wrench about 9" long, to the proverbial 1/8th 
turn from stripped out tight.  IMO that collet needs a full redesign to use 
sleeves with tapered ends and a cone in the shaft with a matching one on 
the nut.  As is, the angle of the ramp used to tighten it against the bit 
shank is too high.  Because the collet is one piece, there is no stuck bit 
syndrome because loosening the collet turns it in the ramp & the bit falls 
out by the time its loosened 1/8 turn. 

I've looked at a lot of routers without finding one that had a truly 
straight, no runout collet.  Hitachi's M12V, way too big for this, has the 
best collets ever.
 
> I have considered the colt trim router but I love the fact that I do not
> have all that cooling air flushing over the cut surfaces.  The PC router
> I originally used threw dust all over my garage to the point I couldn't
> stay in the room. THe die grinder along with a cyclone in line with my
> shop vac has eliminated dust even when cutting MDF.  I will still get
> bigger chips on the surface but they are not dust

Yeah, that Oneida 'Dust Deputy' is the slickest thing since bottled beer.  
But my shopvac is almost too much flow, heavier stuff tends to just sit 
there and spin till the power goes off.  I got one about a year ago, 
several of those 5 gallon cans of trash has been dumped, I can still see 
the bottom of the tub in a 12.5 gallon shopvac, and I only pulled its 
filter ($30) once to clean it up when I put the DD on it.  Best $80 I ever 
spent!  Its usually plugged into the back of my table saw, controlled by 
one of those gizmos that turns it on & off with the saw.

Cheers, Gene
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Re: [Emc-users] tapping problem?

[Jon Elson]

gene heskett wrote:
>  
> That was when I learned about EDM to remove the taps. :)  Slow, but does 
> the job without hurting the hole.  I have since built a better PSU for 
> that, works nicely but you can hear it running blocks away, very _VERY_ 
> noisy, estimated 140db inside the teeny shop I have.
>   
I got to see Ben Fleming's pulser EDM at the CNC Workshop last June (?) 
in Ann Arbor.
it made amazing progress in steel, much faster than RC EDMs.  I think it 
could probably
remove a small tap in 15-30 minutes, and made just a little sizzling 
noise, like cooking
bacon.  Nowhere near 140 dB!  He has a book and a blank board, I am 
working on
making one.

Jon

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Re: [Emc-users] tapping problem?

[Jon Elson]

Ed wrote:
>
>   If Fanuc, Siemens, Mazak, et al have not implemented torque limiting 
> for taps I would guess that it is much more difficult than it looks.
>   
Yes, I would think that the spindle must come to a stop within 5 degrees 
of rotation from
when the overload is detected.  I think that would be quite hard to do.

Jon

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Re: [Emc-users] tapping problem?

[Jon Elson]

a...@conceptmachinery.com wrote:
> Hi
> Tapping cycle use very slow motion, why drive can not stop motion of spindle?
> if max rpm for tapping around 100 rpm , can drive stop spindle ?
> it is possible to program for 70% or torque that actually will crash tap,
> to have some safety
Is 1200 RPM slow?  I normally run smaller taps at 1000 - 1200 RPM.

Jon

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Re: [Emc-users] OT - Die Grinder Collets

[BRIAN GLACKIN]

Ouch.  Plays heck with my SS check.  How is the run out on those?  I have
> measured above 20 thou if I just shove it in and tighten, and when dealing
> with solid carbide wood router bits I have been able to turn those in the
> collect and usually get it down around 5 thou.  Still way too sloppy but it
> carves mortise and tenon joints in wood ok.  Using similar mills from
> Hemly, not much can be gained to rotating them in the collet.
>

Gene,

I am primarily cutting MDF and plywood (2d) with a 1/8th carbide endmill,
so I am rarely worried about the runout.  Plus I would need to buy an
indicator to figure it out.  I have cut steel screw heads (by accident) and
I get a surprisingly smooth surface.   Most of the time, I am happy if I
get the cut code right.  My largest runs have been christmas ornament
blanks for the kids and cub scouts to paint.

My biggest problem is with the collet slipping after my first cuts.  I need
to make sure I always snug up the collet after the few minutes of starting
the router.

I have considered the colt trim router but I love the fact that I do not
have all that cooling air flushing over the cut surfaces.  The PC router I
originally used threw dust all over my garage to the point I couldn't stay
in the room. THe die grinder along with a cyclone in line with my shop vac
has eliminated dust even when cutting MDF.  I will still get bigger chips
on the surface but they are not dust

Brian
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Re: [Emc-users] steppers

[gene heskett]

On Monday, January 16, 2012 05:19:37 PM Cathrine Hribar did opine:

> On Mon, 16 Jan 2012 16:28:58 -0500
> 
>   gene heskett  wrote:
> > On Monday, January 16, 2012 04:07:22 PM Cathrine Hribar did opine:
> >> Hi Gene:
> >> 
> >> Could you give me some idea of what the advantage is of using 2 and 3
> >> stack steppers?  You seem to know a lot and I hope you don't mind me
> >> asking dumb questions.
> >> 
> >> Thanks
> >> 
> >> Bill
> > 
> > As I see it, its a tradeoff, you can get torque approaching a nema 34
> > motor in the nema 23 size form, that because the armature has a
> > smaller OD, can probably run at faster accelerating rates than the
> > larger nema 34.  Weight hanging on the end of the table looks like it
> > might be less, even with the so-called triple stack, longer &
> > therefore heavier motors. In my case, figuring out how to make
> > couplings that are shorter would have allowed me to put mine closer
> > to the end of the tables, reducing the lever arm of the weight whose
> > cg is likely a good 6" outward.  Moving that inward an inch and a
> > half would I'm sure make a detectable improvement.
> > 
> > All this is pure opinion however, and there are folks here on this
> > list that can stand on much firmer ground when they write on the
> > subject.  OTOH, it also seems to me that the nema 34 motor should be
> > a wee bit more efficient in terms of amps in vs oz/in out.  But I'd
> > expect one can get arguments started just on that aspect alone.
> > 
> > An true expert I am not at this, I am a 100% self taught (and poor
> > teacher at times too) retired tv broadcast engineer with only a GED,
> > CET on the wall.  And a degree UHK (University of Hard Knocks) since
> > I'm only 30 miles from them & had a few bucks to spare.
> > 
> > There are some decent tutorials on steppers available on the net, many
> > of which I think start at a bit too basic a level, but they do fairly
> > well cover the subject.  But I'd also expect that you've done that
> > bit of homework already.
> > 
> > Cheers, Gene
> 
> Thanks for ur reply..
> 
> are u saying that the nema 34 would be equal to a nema 23 three stack?
> 
A short one maybe.  There are 34's out there that could twist the shaft out 
of a 23.  But to get real speeds I'd expect to see 80+ volt power supplies.

> Bill
> 
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Cheers, Gene
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Re: [Emc-users] steppers

[andy pugh]

On 16 January 2012 22:06, Cathrine Hribar  wrote:

> are u saying that the nema 34 would be equal to a nema 23 three stack?

Three-stack steppers in 23 size seem to be quite slow. I haven't ever
tried a 34, but I understand that they have the same problem.
I think you need to look at your critical rpm and and make a decision
on torque at that rpm, at your voltage.

My lathe has a 3-stack 23 on the Z with a 3:1 reduction and a 5mm
pitch screw. The X has a 2-stack 1:1 and a 2.5mm screw. The X is
faster, and stalls less. But then the X has an easier life..

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Re: [Emc-users] tapping problem?

[Ed]

a...@conceptmachinery.com wrote:
>>a...@conceptmachinery.com wrote:
>>
>>>Hi
>>>i there spindle motor and motor drive that can be better used for
>>>tapping?
>>>Problem with use tap is that spindle motor can easy crash tap and after
>>>that extra  charge - + equipment - to remove broke tap from hole.
>>>
>>
>>I have been using rigid tapping with EMC2 for almost 2 years.  It works
>>amazingly well.
>>You do have to be sure the tap will not reach the bottom of the hole.
>>There is no system
>>I can think of that can stop the motor quickly enough if this happens,
>>and even using
>>a torque-limiting clutch will not prevent all catastrophes.
> 
> Hi
> Tapping cycle use very slow motion, why drive can not stop motion of spindle?
> if max rpm for tapping around 100 rpm , can drive stop spindle ?
> it is possible to program for 70% or torque that actually will crash tap,
> to have some safety.
> aram


Several things here. Rigid tapping is just that, no torque slip clutch 
as that would throw the spindle and tap out of sync.

  If you had a tension/compression tap holder you may get by with a slip 
clutch. If you are in doubt about your tap then simply tap shallow and 
finish by hand.

  Speed wise 100RPM is very slow. I tap up to 3/8 both cut and roll taps 
at 500 RPM, 5/8 taps go at 200 RPM for cut and 120 for roll form. Many 
smaller taps in Aluminum are spinning at 1000 RPM or more.

  If Fanuc, Siemens, Mazak, et al have not implemented torque limiting 
for taps I would guess that it is much more difficult than it looks.

Ed.


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Re: [Emc-users] steppers

[Cathrine Hribar]

On Mon, 16 Jan 2012 16:28:58 -0500
  gene heskett  wrote:
> On Monday, January 16, 2012 04:07:22 PM Cathrine Hribar did opine:
> 
>> Hi Gene:
>> 
>> Could you give me some idea of what the advantage is of using 2 and 3
>> stack steppers?  You seem to know a lot and I hope you don't mind me
>> asking dumb questions.
>> 
>> Thanks
>> 
>> Bill
>> 
> 
> As I see it, its a tradeoff, you can get torque approaching a nema 34 motor 
> in the nema 23 size form, that because the armature has a smaller OD, can 
> probably run at faster accelerating rates than the larger nema 34.  Weight 
> hanging on the end of the table looks like it might be less, even with the 
> so-called triple stack, longer & therefore heavier motors. In my case, 
> figuring out how to make couplings that are shorter would have allowed me 
> to put mine closer to the end of the tables, reducing the lever arm of the 
> weight whose cg is likely a good 6" outward.  Moving that inward an inch 
> and a half would I'm sure make a detectable improvement.
> 
> All this is pure opinion however, and there are folks here on this list 
> that can stand on much firmer ground when they write on the subject.  OTOH, 
> it also seems to me that the nema 34 motor should be a wee bit more 
> efficient in terms of amps in vs oz/in out.  But I'd expect one can get 
> arguments started just on that aspect alone.
> 
> An true expert I am not at this, I am a 100% self taught (and poor teacher 
> at times too) retired tv broadcast engineer with only a GED, CET on the 
> wall.  And a degree UHK (University of Hard Knocks) since I'm only 30 miles 
> from them & had a few bucks to spare.
> 
> There are some decent tutorials on steppers available on the net, many of 
> which I think start at a bit too basic a level, but they do fairly well 
> cover the subject.  But I'd also expect that you've done that bit of 
> homework already.
> 
> Cheers, Gene


Thanks for ur reply..

are u saying that the nema 34 would be equal to a nema 23 three stack?

Bill

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Re: [Emc-users] New thread, visolate

[gene heskett]

On Monday, January 16, 2012 04:56:19 PM BRIAN GLACKIN did opine:

> > are pure crap with horrible run outs.  Does anyone know of a source
> > for .125" collects for the HF die grinder?  Hopefully that run truer
> > than their 1/4" supplied collect?
> 
> Let me know if you find a source.  I gave a burned out grinder to a
> machine shop locally that advertised "no job too small" and asked him
> to machine a half dozen replacement collets to fit the 0.125" endmill I
> am using.  That was before Christmas and I have yet to hear back from
> him.  I would do it as a turning project, but seeing I have yet to
> understand lathe basics, it is a bit beyond me for now.
> 
> In the meantime, I use the 0.25 X 0.125 brass collet inserts sold by
> Stewart Macdonald for ~$12 each.
 
Ouch.  Plays heck with my SS check.  How is the run out on those?  I have 
measured above 20 thou if I just shove it in and tighten, and when dealing 
with solid carbide wood router bits I have been able to turn those in the 
collect and usually get it down around 5 thou.  Still way too sloppy but it 
carves mortise and tenon joints in wood ok.  Using similar mills from 
Hemly, not much can be gained to rotating them in the collet.  Maybe a 10 
thou to 12 thou range, they are pretty straight. HF's collets are crap, I 
should call them and order a half dozen, maybe there would be a straight 
one in the bag? :)

> Brian
> 
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Cheers, Gene
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Re: [Emc-users] tapping problem?

[gene heskett]

On Monday, January 16, 2012 04:35:12 PM a...@conceptmachinery.com did opine:

> > a...@conceptmachinery.com wrote:
> >> Hi
> >> i there spindle motor and motor drive that can be better used for
> >> tapping?
> >> Problem with use tap is that spindle motor can easy crash tap and
> >> after that extra  charge - + equipment - to remove broke tap from
> >> hole.
> > 
> > I have been using rigid tapping with EMC2 for almost 2 years.  It
> > works amazingly well.
> > You do have to be sure the tap will not reach the bottom of the hole.
> > There is no system
> > I can think of that can stop the motor quickly enough if this happens,
> > and even using
> > a torque-limiting clutch will not prevent all catastrophes.
> 
> Hi
> Tapping cycle use very slow motion, why drive can not stop motion of
> spindle? if max rpm for tapping around 100 rpm , can drive stop spindle
> ? it is possible to program for 70% or torque that actually will crash
> tap, to have some safety.
> aram
 
I don't have the power to drive a tap much bigger than 4-40 here.  As for 
detecting the imminent tap breakage, it takes maybe 100ms to begin to 
effect an estop on my dc spindle, and my suicide breaking stop load is such 
that the spindle would coast from 1/4 to maybe 3/4s of a full turn after 
the estop came on at 100-150 rpms.  It is quite rapid, but I wouldn't want 
to damage the magnets in that PM field motor by throwing a dead short 
across it when at full motor revs either.

In short, the mechanical slip clutch would IMO, be the better idea, much 
much less mass to stop even if the spindle is still going.  Then the 
problem is to stop the z drive before it drives the tap on thru the hole, 
stripping the threads or worse.  The only way to do that is to encode the 
tap holder so the z drive is driven by the taps actual rpms.  I have seen 
spring loaded tap drivers for sale that would cushion that, but don't 
recall where now.

But I've no clue if anyone has attempted such a specialized feat yet.  
Probably the spring loaded tap holder is the most used if anything is used.

> > Jon
> > 
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Cheers, Gene
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Re: [Emc-users] tapping problem?

[gene heskett]

On Monday, January 16, 2012 04:29:38 PM Jon Elson did opine:

> a...@conceptmachinery.com wrote:
> > Hi
> > i there spindle motor and motor drive that can be better used for
> > tapping? Problem with use tap is that spindle motor can easy crash
> > tap and after that extra  charge - + equipment - to remove broke tap
> > from hole.
> 
> I have been using rigid tapping with EMC2 for almost 2 years.  It works
> amazingly well.
> You do have to be sure the tap will not reach the bottom of the hole.
> There is no system
> I can think of that can stop the motor quickly enough if this happens,
> and even using
> a torque-limiting clutch will not prevent all catastrophes.
> 
> Jon
 
That was when I learned about EDM to remove the taps. :)  Slow, but does 
the job without hurting the hole.  I have since built a better PSU for 
that, works nicely but you can hear it running blocks away, very _VERY_ 
noisy, estimated 140db inside the teeny shop I have.

Cheers, Gene
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Re: [Emc-users] steppers

[gene heskett]

On Monday, January 16, 2012 04:07:22 PM Cathrine Hribar did opine:

> Hi Gene:
> 
> Could you give me some idea of what the advantage is of using 2 and 3
> stack steppers?  You seem to know a lot and I hope you don't mind me
> asking dumb questions.
> 
> Thanks
> 
> Bill
> 

As I see it, its a tradeoff, you can get torque approaching a nema 34 motor 
in the nema 23 size form, that because the armature has a smaller OD, can 
probably run at faster accelerating rates than the larger nema 34.  Weight 
hanging on the end of the table looks like it might be less, even with the 
so-called triple stack, longer & therefore heavier motors. In my case, 
figuring out how to make couplings that are shorter would have allowed me 
to put mine closer to the end of the tables, reducing the lever arm of the 
weight whose cg is likely a good 6" outward.  Moving that inward an inch 
and a half would I'm sure make a detectable improvement.

All this is pure opinion however, and there are folks here on this list 
that can stand on much firmer ground when they write on the subject.  OTOH, 
it also seems to me that the nema 34 motor should be a wee bit more 
efficient in terms of amps in vs oz/in out.  But I'd expect one can get 
arguments started just on that aspect alone.

An true expert I am not at this, I am a 100% self taught (and poor teacher 
at times too) retired tv broadcast engineer with only a GED, CET on the 
wall.  And a degree UHK (University of Hard Knocks) since I'm only 30 miles 
from them & had a few bucks to spare.

There are some decent tutorials on steppers available on the net, many of 
which I think start at a bit too basic a level, but they do fairly well 
cover the subject.  But I'd also expect that you've done that bit of 
homework already.

Cheers, Gene
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change the things we can, and wisdom to know the difference.

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Re: [Emc-users] New thread, visolate

[BRIAN GLACKIN]

>
> are pure crap with horrible run outs.  Does anyone know of a source for
> .125" collects for the HF die grinder?  Hopefully that run truer than their
> 1/4" supplied collect?


Let me know if you find a source.  I gave a burned out grinder to a machine
shop locally that advertised "no job too small" and asked him to machine a
half dozen replacement collets to fit the 0.125" endmill I am using.  That
was before Christmas and I have yet to hear back from him.  I would do it
as a turning project, but seeing I have yet to understand lathe basics, it
is a bit beyond me for now.

In the meantime, I use the 0.25 X 0.125 brass collet inserts sold by
Stewart Macdonald for ~$12 each.

Brian
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Re: [Emc-users] tapping problem?

[a]

> a...@conceptmachinery.com wrote:
>> Hi
>> i there spindle motor and motor drive that can be better used for
>> tapping?
>> Problem with use tap is that spindle motor can easy crash tap and after
>> that extra  charge - + equipment - to remove broke tap from hole.
>>
> I have been using rigid tapping with EMC2 for almost 2 years.  It works
> amazingly well.
> You do have to be sure the tap will not reach the bottom of the hole.
> There is no system
> I can think of that can stop the motor quickly enough if this happens,
> and even using
> a torque-limiting clutch will not prevent all catastrophes.
Hi
Tapping cycle use very slow motion, why drive can not stop motion of spindle?
if max rpm for tapping around 100 rpm , can drive stop spindle ?
it is possible to program for 70% or torque that actually will crash tap,
to have some safety.
aram

>
> Jon
>
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Re: [Emc-users] New thread, visolate

[gene heskett]

On Monday, January 16, 2012 02:37:43 PM gene heskett did opine:

> On Sunday, January 15, 2012 09:20:33 PM Mag. Dr. Nikolaus Klepp did 
opine:
> > > You know you have a problem when you first have to explain what the
> > > "thing" was before you can explain why what you did with the "thing"
> > > was so cool and still you get a blank look.
> > 
> > This perfectly sums up the loss tech dilemma :-)
> > 
> > Nik
> 
> Yes Nik, but I am far more concerned with how we should go about fixing
> that.
> 
> One side of the problem is likely the sheer amount of information that
> has become available to anyone with net access, but the inability to
> recognize a get rich quick scheme from a good personal and/or business
> plan.  I have to admit that good friends of mine who are aways on the
> lookout to win the lottery, are by now pretty tired of me prefacing a
> reply on the current subject with the phrase that I believe Hemingway
> coined, but R. A. Heinlein made famous, TANSTAAFL.  That single acronym
> probably fits 90% or more of the BS that comes flooding into our
> computers from a simple google search.
> 
> So I believe the first thing we should try and teach is TANSTAAFL, long
> before the computer is ever turned on.
> 
> Cheers, Gene

I've just made a somewhat illuminating discovery.  Running visolate here, 
and using its demo graphic as a starting point, I had it make the voroni 
toolpath, and the outline toolpath ngc files with movement rates of 0.1 and 
rapids at 0.15 since it wants ips, not ipm in those boxes.  Then I loaded 
the result into emc and checked properties.  On my machine, at my 
feedrates, the outline file would theoretically run in 20.4 minutes.  The 
voroni path file would run in 18.4 minutes.  So, while it may look like it 
should be faster, saving 10% of the machining time seems hardly worth it.  
Considering the outline mode will actually draw the text as text in the 
copper, that alone is worth that 2 minutes.  Maybe the pcb-gcode pluggin is 
easier to use?  Considering that I haven't found an eagle output file in 
the projects/demo tree that visolate is 100% happy with (but I still know 
zip about using eagle just yet) I may be making assumptions that won't 
prove to be 100% true.  I also might be forced to install a 3rd spindle, 
one with some real rpms. 2500 revs isn't exactly ideal.  I could get 
tempted to make my own but all I'd have for chucks are dremels, and those 
are pure crap with horrible run outs.  Does anyone know of a source for 
.125" collects for the HF die grinder?  Hopefully that run truer than their 
1/4" supplied collect?

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
It's gonna be alright,
It's almost midnight,
And I've got two more bottles of wine.

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Re: [Emc-users] tapping problem?

[Jon Elson]

a...@conceptmachinery.com wrote:
> Hi
> i there spindle motor and motor drive that can be better used for tapping?
> Problem with use tap is that spindle motor can easy crash tap and after
> that extra  charge - + equipment - to remove broke tap from hole.
>   
I have been using rigid tapping with EMC2 for almost 2 years.  It works 
amazingly well.
You do have to be sure the tap will not reach the bottom of the hole.  
There is no system
I can think of that can stop the motor quickly enough if this happens, 
and even using
a torque-limiting clutch will not prevent all catastrophes.

Jon

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Re: [Emc-users] EMC2 and LabVIEW

[Andrew]

2012/1/16 andy pugh 

> It is probably easier to write an EMC2 driver for the Adlink card.
> If the encoder counts and analogue outputs are presented as registers
> on the PCI bus then it is all fairly straightforward, this forum
> thread tracks the development of a driver for an ISA card, which as
> far as I know is working fine now, despite the fact that the driver
> was written without ever seeing the card.
>
> http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=38&id=10910


Thanks, you're helpful as always. It looks possible even for non-programmer
like me. When (and if) we have the card, I'll try to figure it out.

Andrew
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Re: [Emc-users] tapping problem?

[a]

> On Sun, 15 Jan 2012, a...@conceptmachinery.com wrote:
>
>> Date: Sun, 15 Jan 2012 22:42:44 -0700
>> From: a...@conceptmachinery.com
>> Reply-To: "Enhanced Machine Controller (EMC)"
>> 
>> To: "Enhanced Machine Controller (EMC)"
>> 
>> Subject: [Emc-users] tapping problem?
>>
>> Hi
>> i there spindle motor and motor drive that can be better used for
>> tapping?
>> Problem with use tap is that spindle motor can easy crash tap and after
>> that extra  charge - + equipment - to remove broke tap from hole.
>>
>> Every one try to get max from each tap and many times tap that "look
>> good"
>> crashed in the hole.
>> Where is solution?
>> The solution is in torque sensitive motor- motor drive system for
>> spindle.
>> Example: tap 1" can hold 80 lb.ft. More than that tap will be crashed.
>> Motor drive that can be programmed - do not exceed 80 lb.ft , and if so
>> E-Stop  machine.
>> For smaller tap torque can be programmed for 20 lb.ft for bigger tap
>> 200
>> lb.ft and etc.
>> Idea is clear.
>> Put this kind motor drive under EMC2 control and problem solved.
>> Is there better solution to prevent breaking tap in hole?
>>
>> Thanks
>> aram
>>
>
>
>
> This is just a standard torque mode drive with a PID output limit applied.
> I do wonder is this would really help though, since the spindle
> inertia is sufficient to break the tap if it "grabs"

What about to use EMC2 servo drive -control?
when machine with EMC2 go into E-STOP , axis does not move by inertia.
Controller try to hold position of axis where E-STOP happened. Am i right?
Same could be apply to control spindle.

Reality on shop floor is that when do work such tapping, everyone knows
about to look at tap, but it is not the solution for problem, particularly
when big shop and machinist want to have just a job!!!
Machine must be design for every day machinist not a "Albert Einstein".

I think such unit must be stand alone product to be integrated with
different controller, to all machine can benefit from it integration.


> A torque mode drive could possible be used another way however. Since the
> torque applied to is measureable (just the PID output)
> Having a work-per-tapped-hole figure could warn of a dull tap
>
>
aram


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Re: [Emc-users] steppers

[Cathrine Hribar]

Hi Gene:

Could you give me some idea of what the advantage is of using 2 and 3 stack 
steppers?  You seem to know a lot and I hope you don't mind me asking dumb 
questions.

Thanks

Bill

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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[Kent A. Reed]

On 1/16/2012 1:38 PM, Przemek Klosowski wrote:
> On Mon, Jan 16, 2012 at 6:18 AM, Erik Christiansen
> wrote:
>
>> On 16.01.12 05:11, gene heskett wrote:
>>> On Monday, January 16, 2012 05:05:23 AM kurniadi engkur did opine:
>>>
 Hai,

 Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan
 saya ingin menambahkan kamu sebagai teman sehingga kamu dapat
 melihatnya. Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu
 login, kamu dapat membuat profil kamu sendiri.
>>> Well, I don't believe this is Navajo.  It looks like bayes poison to me.
>> The "X-LangGuess: Indonesian" header agrees with my first guess,
>>
>
> Even more impressive is that if you drop the above fragment into Google
> Translate it auto-detects Indonesian, and translates it just fine. I am
> thoroughly impressed by this technology---I was able to point it to some
> Japanese and Chinese pages about electronic components and get the gist of
> what they were saying. We're within a shooting range of a Babelfish --
> Douglas Adams' ear-inserted object that translates every language in the
> Universe for you :)
>
I agree with you Przemek, and I 've used it the same way---including 
translating foreign patents---but I'm saddened to think that the most 
likely result is that Babelfish will be whispering to me constantly 
about the millions waiting for me in various African bank accounts.

The US military found that pilots respond best to aural cockpit warnings 
when spoken in a female voice. That'll come in handy when Babelfish 
tells me about the latest opportunity to buy generic Viagra.

Regards,
Kent


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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[Przemek Klosowski]

On Mon, Jan 16, 2012 at 6:18 AM, Erik Christiansen
wrote:

> On 16.01.12 05:11, gene heskett wrote:
> > On Monday, January 16, 2012 05:05:23 AM kurniadi engkur did opine:
> >
> > > Hai,
> > >
> > > Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan
> > > saya ingin menambahkan kamu sebagai teman sehingga kamu dapat
> > > melihatnya. Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu
> > > login, kamu dapat membuat profil kamu sendiri.
>
> > Well, I don't believe this is Navajo.  It looks like bayes poison to me.
>
> The "X-LangGuess: Indonesian" header agrees with my first guess,
>


Even more impressive is that if you drop the above fragment into Google
Translate it auto-detects Indonesian, and translates it just fine. I am
thoroughly impressed by this technology---I was able to point it to some
Japanese and Chinese pages about electronic components and get the gist of
what they were saying. We're within a shooting range of a Babelfish --
Douglas Adams' ear-inserted object that translates every language in the
Universe for you :)
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Re: [Emc-users] Software stepgen through Mesa GPIO pins

[Viesturs Lācis]

2012/1/16 Peter C. Wallace :
>
> I can do this sometime today
>
> I was very busy last week so got behind on custom bitfiles.

Thank You very much!
I would really appreciate that!

Viesturs

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Re: [Emc-users] Software stepgen through Mesa GPIO pins

[Peter C. Wallace]

On Mon, 16 Jan 2012, Viesturs L?cis wrote:

> Date: Mon, 16 Jan 2012 18:14:39 +0200
> From: "[UTF-8] Viesturs L?cis" 
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: "Enhanced Machine Controller (EMC)" 
> Subject: Re: [Emc-users] Software stepgen through Mesa GPIO pins
> 
> 2012/1/16 Chris Radek :
>> On Mon, Jan 16, 2012 at 05:44:47PM +0200, Viesturs L??cis wrote:
>>> Hello!
>>>
>>> I have a question:
>>> How can I do software step generation and export it through gpio pins on 
>>> 5i23?
>>
>> Why do you want to do this?
>>
>
> Because the machine has 3 servo motors to be controlled by 7i39 card
> and also 2 stepper motors.
> Ideal solution would be modifying 5i23 firmware for 7i39 card to add
> stepgens, but I have no skill to do that by myself. Can anyone help me
> out on this? Usually Peter helped me out on such situations (which
> added lots of bonus points to my evaluation of their customer service
> and my loyalty), I asked him, but it seems that he is too busy this
> time.
> I have to go to client's site day after tomorrow and now I am figuring
> out all the possible ways to get machine working.
>
> Viesturs





I can do this sometime today

I was very busy last week so got behind on custom bitfiles.


>
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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] Software stepgen through Mesa GPIO pins

[Viesturs Lācis]

2012/1/16 andy pugh :
> On 16 January 2012 15:44, Viesturs Lācis  wrote:
>
>> How can I do software step generation and export it through gpio pins on 
>> 5i23?
>
> You will need to add the hm2_5i23.0.write_gpio function to the base
> thread (and you will need a base thread)

Thanks for the tip, found this page:
http://linuxcnc.org/docview/devel/html/man/man9/hostmot2.9.html#FUNCTIONS

Is there anything else I should not miss?

Viesturs

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Re: [Emc-users] Software stepgen through Mesa GPIO pins

[Viesturs Lācis]

2012/1/16 Chris Radek :
> On Mon, Jan 16, 2012 at 05:44:47PM +0200, Viesturs L??cis wrote:
>> Hello!
>>
>> I have a question:
>> How can I do software step generation and export it through gpio pins on 
>> 5i23?
>
> Why do you want to do this?
>

Because the machine has 3 servo motors to be controlled by 7i39 card
and also 2 stepper motors.
Ideal solution would be modifying 5i23 firmware for 7i39 card to add
stepgens, but I have no skill to do that by myself. Can anyone help me
out on this? Usually Peter helped me out on such situations (which
added lots of bonus points to my evaluation of their customer service
and my loyalty), I asked him, but it seems that he is too busy this
time.
I have to go to client's site day after tomorrow and now I am figuring
out all the possible ways to get machine working.

Viesturs

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Re: [Emc-users] Software stepgen through Mesa GPIO pins

[Chris Radek]

On Mon, Jan 16, 2012 at 05:44:47PM +0200, Viesturs L??cis wrote:
> Hello!
> 
> I have a question:
> How can I do software step generation and export it through gpio pins on 5i23?

Why do you want to do this?


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Re: [Emc-users] Software stepgen through Mesa GPIO pins

[andy pugh]

On 16 January 2012 15:44, Viesturs Lācis  wrote:

> How can I do software step generation and export it through gpio pins on 5i23?

You will need to add the hm2_5i23.0.write_gpio function to the base
thread (and you will need a base thread)

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[Emc-users] Software stepgen through Mesa GPIO pins

[Viesturs Lācis]

Hello!

I have a question:
How can I do software step generation and export it through gpio pins on 5i23?

Is this correct approach?

addf stepgen.make-pulses base-thread
net 1step   stepgen.0.step   hm2_5i20.0.gpio.00m
net 1dir  stepgen.0.dir hm2_5i20.0.gpio.00n

I have a suspicion that something is missing for the gpio pins to
change their state at the base-thread rate.

Viesturs

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Re: [Emc-users] tapping problem?

[Peter C. Wallace]

On Sun, 15 Jan 2012, a...@conceptmachinery.com wrote:

> Date: Sun, 15 Jan 2012 22:42:44 -0700
> From: a...@conceptmachinery.com
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: "Enhanced Machine Controller (EMC)" 
> Subject: [Emc-users] tapping problem?
> 
> Hi
> i there spindle motor and motor drive that can be better used for tapping?
> Problem with use tap is that spindle motor can easy crash tap and after
> that extra  charge - + equipment - to remove broke tap from hole.
>
> Every one try to get max from each tap and many times tap that "look good"
> crashed in the hole.
> Where is solution?
> The solution is in torque sensitive motor- motor drive system for spindle.
> Example: tap 1" can hold 80 lb.ft. More than that tap will be crashed.
> Motor drive that can be programmed - do not exceed 80 lb.ft , and if so
> E-Stop  machine.
> For smaller tap torque can be programmed for 20 lb.ft for bigger tap  200
> lb.ft and etc.
> Idea is clear.
> Put this kind motor drive under EMC2 control and problem solved.
> Is there better solution to prevent breaking tap in hole?
>
> Thanks
> aram
>



This is just a standard torque mode drive with a PID output limit applied.
I do wonder is this would really help though, since the spindle 
inertia is sufficient to break the tap if it "grabs"

A torque mode drive could possible be used another way however. Since the 
torque applied to is measureable (just the PID output)
Having a work-per-tapped-hole figure could warn of a dull tap




>
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Peter Wallace
Mesa Electronics

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(")_(") signature to help him gain world domination.


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Re: [Emc-users] tapping problem?

[John Thornton]

Sure you look at the tap before using it... if it is worn out toss it 
out. New taps are much cheaper than removing a broken tap. All it takes 
it a 10x and one eye and one second of time.

John

On 1/15/2012 11:42 PM, a...@conceptmachinery.com wrote:
> Hi
> i there spindle motor and motor drive that can be better used for tapping?
> Problem with use tap is that spindle motor can easy crash tap and after
> that extra  charge - + equipment - to remove broke tap from hole.
>
> Every one try to get max from each tap and many times tap that "look good"
> crashed in the hole.
> Where is solution?
> The solution is in torque sensitive motor- motor drive system for spindle.
> Example: tap 1" can hold 80 lb.ft. More than that tap will be crashed.
> Motor drive that can be programmed - do not exceed 80 lb.ft , and if so
> E-Stop  machine.
> For smaller tap torque can be programmed for 20 lb.ft for bigger tap  200
> lb.ft and etc.
> Idea is clear.
> Put this kind motor drive under EMC2 control and problem solved.
> Is there better solution to prevent breaking tap in hole?
>
> Thanks
> aram
>
>
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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[Lester Caine]

gene heskett wrote:
> Surprising considering that many other subscription based lists I am on
> suffer much higher rates.  I have no clue if its our low profile, or some
> pretty decent spam filters at sourceforge.  Whatever, the success is
> appreciated.

Well I see the apology from Kurniadi ...
But it IS somewhat surprising that this list has not see as much spam as some 
of 
the sf lists have been suffering from recently. If switched off a couple 
because 
of the problem.

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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[gene heskett]

On Monday, January 16, 2012 06:31:20 AM Erik Christiansen did opine:

> On 16.01.12 05:11, gene heskett wrote:
> > On Monday, January 16, 2012 05:05:23 AM kurniadi engkur did opine:
> > > Hai,
> > > 
> > > Saya membuat profil Netlog dengan foto saya, video, blog, dan event
> > > dan saya ingin menambahkan kamu sebagai teman sehingga kamu dapat
> > > melihatnya. Pertama-tama, kamu harus mendaftar di Netlog! Setelah
> > > kamu login, kamu dapat membuat profil kamu sendiri.
> > > 
> > > Coba lihat:
> > > http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0xJmdtPTEyJnU9JTJ
> > > GZ28
> > > lMkZyZWdpc3RlciUyRmlkJTNELVpXMWpMWFZ6WlhKelFHeHBjM1J6TG5OdmRYSmpaV1
> > > p2Y21 kbExtNWxkQV9fJTI2dWlkJTNEMTgwNTc3ODEy
> > > 
> > > Salam,
> > > kurniadi
> > 
> > Well, I don't believe this is Navajo.  It looks like bayes poison to
> > me.
> 
> The "X-LangGuess: Indonesian" header agrees with my first guess, but
> I'll go with your spam diagnosis, Gene.
> 
> > Spam IOW.  Yup, From:kurniadi engkur"
> >  If this isn't spam, its a heck of
> > a good imitation. But somehow I feel like it would not do ones bayes
> > database any good to feed it to sa_learn so I'd say just nuke it.
> 
> How fortunate we are to have so little of it that we can tolerate it as
> a bit of whimsy.
> 
> Erik

Surprising considering that many other subscription based lists I am on 
suffer much higher rates.  I have no clue if its our low profile, or some 
pretty decent spam filters at sourceforge.  Whatever, the success is 
appreciated.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
Oh yeah.  Forgot about those.  Getting senile, I guess...
 -- Larry Wall in <199710261551.haa17...@wall.org>

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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[Erik Christiansen]

On 16.01.12 05:11, gene heskett wrote:
> On Monday, January 16, 2012 05:05:23 AM kurniadi engkur did opine:
> 
> > Hai,
> > 
> > Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan
> > saya ingin menambahkan kamu sebagai teman sehingga kamu dapat
> > melihatnya. Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu
> > login, kamu dapat membuat profil kamu sendiri.
> > 
> > Coba lihat:
> > http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0xJmdtPTEyJnU9JTJGZ28
> > lMkZyZWdpc3RlciUyRmlkJTNELVpXMWpMWFZ6WlhKelFHeHBjM1J6TG5OdmRYSmpaV1p2Y21
> > kbExtNWxkQV9fJTI2dWlkJTNEMTgwNTc3ODEy
> > 
> > Salam,
> > kurniadi
> > 
> Well, I don't believe this is Navajo.  It looks like bayes poison to me.

The "X-LangGuess: Indonesian" header agrees with my first guess, but
I'll go with your spam diagnosis, Gene.

> Spam IOW.  Yup, From:kurniadi engkur" 
> If this isn't spam, its a heck of a good imitation. But somehow I feel like 
> it would not do ones bayes database any good to feed it to sa_learn so I'd 
> say just nuke it.

How fortunate we are to have so little of it that we can tolerate it as
a bit of whimsy.

Erik

-- 
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As plurdled gabbleblotchits on a lurgid bee.
Groop I implore thee, my foonting turlingdromes. 
And hooptiously drangle me with crinkly bindlewurdles, or I will rend
thee in the gobberwarts with my blurglecruncheon, see if I don't!
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Re: [Emc-users] Correcting for workpiece warpage.

[Michael Haberler]

>>> 
>> 
>> Sounds like a job for probekins..
>> 
>> http://thread.gmane.org/gmane.linux.distributions.emc.user/31345/focus=31389
> 
> ..

> I just seem to have skipped, how exactly the surface mesh file is
> created by probing the surface in certain points.

that will be a Delaunay triangulation of the probe points 
http://en.wikipedia.org/wiki/Delaunay_triangulation, plus the x/y corner points 
of the machine so there's continuity of correction outside the mesh

this will allow for correction of pretty much arbitrary point clouds, not just 
rectangular (which the workpiece might permit or not permit)

the issue at hand is to find/write a robust DT which doesnt rely on 
bleeding-edge self-installed matplotlib, scipy, numpy & friends

the kins module works, so those wanting to write an STL file with some points 
can give it a try


- Michael


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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[kurniadi]

Im, sory everybody... i was create user in netlog and accidently
create spam here... :(

Kurniadi

2012/1/16 gene heskett :
> On Monday, January 16, 2012 05:41:37 AM andy pugh did opine:
>
>> On 16 January 2012 10:11, gene heskett  wrote:
>> > Well, I don't believe this is Navajo.  It looks like bayes poison to
>> > me. Spam IOW.
>>
>> Or possibly one of our subscribers has accidentally sent an invitation
>> to his entire contacts database.
>> I did that with LinkedIn, which was slightly embarassing. It just
>> grabbed my Gmail contacts...
>
> And a large concern of mine andy, which is why I don't ever follow links to
> those sorts of places.
>
> Cheers, Gene
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> My web page: 
> When you get your PH.D. will you get able to work at BURGER KING?
>
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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[gene heskett]

On Monday, January 16, 2012 05:41:37 AM andy pugh did opine:

> On 16 January 2012 10:11, gene heskett  wrote:
> > Well, I don't believe this is Navajo.  It looks like bayes poison to
> > me. Spam IOW.
> 
> Or possibly one of our subscribers has accidentally sent an invitation
> to his entire contacts database.
> I did that with LinkedIn, which was slightly embarassing. It just
> grabbed my Gmail contacts...

And a large concern of mine andy, which is why I don't ever follow links to 
those sorts of places.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
When you get your PH.D. will you get able to work at BURGER KING?

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Re: [Emc-users] EMC2 and LabVIEW

[andy pugh]

On 16 January 2012 09:04, Andrew  wrote:

> Thanks, I'm afraid it's too complicated for us. We desided to start with
> Adlink PCI-8136 card which has 6 encoder inputs and 6 analog outputs.
> Maybe later it will be possible to think about drivers for a MESA card.

It is probably easier to write an EMC2 driver for the Adlink card.
If the encoder counts and analogue outputs are presented as registers
on the PCI bus then it is all fairly straightforward, this forum
thread tracks the development of a driver for an ISA card, which as
far as I know is working fine now, despite the fact that the driver
was written without ever seeing the card.
http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=38&id=10910

-- 
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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[andy pugh]

On 16 January 2012 10:11, gene heskett  wrote:

> Well, I don't believe this is Navajo.  It looks like bayes poison to me.
> Spam IOW.

Or possibly one of our subscribers has accidentally sent an invitation
to his entire contacts database.
I did that with LinkedIn, which was slightly embarassing. It just
grabbed my Gmail contacts...

-- 
atp
The idea that there is no such thing as objective truth is, quite simply, wrong.

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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[Peter Blodow]

Hi Kurniadi,

Kroklokwafzi? Semememi! Seiokrontro - prafriplo: Bifzi, bafzi; hulalemi; 
quasti basti bo...

Peter



kurniadi engkur schrieb:
> Hai,
>
> Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan saya 
> ingin menambahkan kamu sebagai teman sehingga kamu dapat melihatnya. 
> Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu login, kamu dapat 
> membuat profil kamu sendiri.
>
> Coba lihat:
> http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0xJmdtPTEyJnU9JTJGZ28lMkZyZWdpc3RlciUyRmlkJTNELVpXMWpMWFZ6WlhKelFHeHBjM1J6TG5OdmRYSmpaV1p2Y21kbExtNWxkQV9fJTI2dWlkJTNEMTgwNTc3ODEy
>
> Salam,
> kurniadi
>
> 
> Tidak mau menerima undangan dari teman kamu lagi?
> http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0yJmdtPTEyJnU9JTJGZ28lMkZub21haWxzJTJGaW52aXRlJTJGZW1haWwlM0QtWlcxakxYVnpaWEp6UUd4cGMzUnpMbk52ZFhKalpXWnZjbWRsTG01bGRBX18lMjZjb2RlJTNEMDYxMDkzMjg_
> Don't want to receive invitations from your friends anymore?
> http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0zJmdtPTEyJnU9aHR0cCUzQSUyRiUyRmVuLm5ldGxvZy5jb20lMkZnbyUyRm5vbWFpbHMlMkZpbnZpdGUlMkZlbWFpbCUzRC1aVzFqTFhWelpYSnpRR3hwYzNSekxuTnZkWEpqWldadmNtZGxMbTVsZEFfXyUyNmNvZGUlM0QwNjEwOTMyOA__
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>   


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Re: [Emc-users] tapping problem?

[andy pugh]

On 16 January 2012 05:42,   wrote:

> i there spindle motor and motor drive that can be better used for tapping?

You can monitor motor current on any drive, sometimes it is built in
to the drive, but otherwise there are various forms of current sensing
element that can be used.

However, nothing will ever prevent the users from leaving the settings
in 2" tap mode regardless of what they are using.

-- 
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Re: [Emc-users] Correcting for workpiece warpage.

[gene heskett]

On Monday, January 16, 2012 05:16:05 AM Michael Haberler did opine:

> I have some work in progress which enables workpiece Z correction by
> loading a mesh of probe points into kins. It was inspired by the recent
> thread on warped PCB board milling.
> 
> this isnt ready yet, but a starter for the interested:
> http://git.mah.priv.at/gitweb/emc2-dev.git/shortlog/refs/heads/probekins
> 
> In particular, I need to reduce external package dependencies and finish
> automatic mesh generation from probed points (aka triangulation)
> 
> - Michael
> 
Thank you Michael.  Please, a reminder post when you do think its usable.

> Am 11.01.2012 um 06:53 schrieb gene heskett:
> > Hello all;
> > 
> > In carving these pcb's for the encoder, I only have room to clamp one
> > edge, the back edge of the pcb.
> > 
> > I carved a dead flat pocket about 30 thou deep and slightly larger
> > than the raw pcb material, gouging out the left front corner so the
> > board, when pulled left & forward, isn't riding the corner, but is
> > located by the left & front edges of this plywood containing the
> > milled pocket.  But when I add a small board across the rear edge of
> > the board and clamp down on it, the front edge of the board rises
> > slightly, about 5 thou I'd SWAG.
> > 
> > Is there a way to couple the y axis position to a small z axis shift
> > so that the engraving tool will stay within a thou or so of the
> > correct depth relative to the warped pcb's surface by driving the z
> > deeper as y moves the table forward to work on the rear portion of
> > the pcb.  Something on the order of 5 thou down at the rear of the
> > board, over a y travel of 1 inch, would help, a lot.
> > 
> > I've read the pages about mapping screws, but ANAICT, that can only
> > correct the same axis for errors and wear in that axis's drive, but I
> > don't see a way to make z move as y moves.
> > 
> > Is it there & I'm too dumb to find it?
> > 
> > Thanks everybody.
> > 
> > Cheers, Gene
> 
> 
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Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
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to act in accordance with the dictates of reason.
-- Oscar Wilde

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Re: [Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[gene heskett]

On Monday, January 16, 2012 05:05:23 AM kurniadi engkur did opine:

> Hai,
> 
> Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan
> saya ingin menambahkan kamu sebagai teman sehingga kamu dapat
> melihatnya. Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu
> login, kamu dapat membuat profil kamu sendiri.
> 
> Coba lihat:
> http://id.netlog.com/go/mailurl/-bT0yNjAwNzk0NTQmbD0xJmdtPTEyJnU9JTJGZ28
> lMkZyZWdpc3RlciUyRmlkJTNELVpXMWpMWFZ6WlhKelFHeHBjM1J6TG5OdmRYSmpaV1p2Y21
> kbExtNWxkQV9fJTI2dWlkJTNEMTgwNTc3ODEy
> 
> Salam,
> kurniadi
> 
Well, I don't believe this is Navajo.  It looks like bayes poison to me.
Spam IOW.  Yup, From:kurniadi engkur" 
If this isn't spam, its a heck of a good imitation. But somehow I feel like 
it would not do ones bayes database any good to feed it to sa_learn so I'd 
say just nuke it.

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: 
Winning isn't everything.  It's the only thing.
-- Vince Lombardi

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Re: [Emc-users] Correcting for workpiece warpage.

[Michael Haberler]

I have some work in progress which enables workpiece Z correction by loading a 
mesh of probe points into kins. It was inspired by the recent thread on warped 
PCB board milling.

this isnt ready yet, but a starter for the interested:
http://git.mah.priv.at/gitweb/emc2-dev.git/shortlog/refs/heads/probekins

In particular, I need to reduce external package dependencies and finish 
automatic mesh generation from probed points (aka triangulation)

- Michael

Am 11.01.2012 um 06:53 schrieb gene heskett:

> Hello all;
> 
> In carving these pcb's for the encoder, I only have room to clamp one edge, 
> the back edge of the pcb.
> 
> I carved a dead flat pocket about 30 thou deep and slightly larger than the 
> raw pcb material, gouging out the left front corner so the board, when 
> pulled left & forward, isn't riding the corner, but is located by the left 
> & front edges of this plywood containing the milled pocket.  But when I add 
> a small board across the rear edge of the board and clamp down on it, the 
> front edge of the board rises slightly, about 5 thou I'd SWAG.
> 
> Is there a way to couple the y axis position to a small z axis shift so 
> that the engraving tool will stay within a thou or so of the correct depth 
> relative to the warped pcb's surface by driving the z deeper as y moves the 
> table forward to work on the rear portion of the pcb.  Something on the 
> order of 5 thou down at the rear of the board, over a y travel of 1 inch, 
> would help, a lot.
> 
> I've read the pages about mapping screws, but ANAICT, that can only correct 
> the same axis for errors and wear in that axis's drive, but I don't see a 
> way to make z move as y moves.
> 
> Is it there & I'm too dumb to find it?
> 
> Thanks everybody.
> 
> Cheers, Gene
> -- 
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> My web page: 
>  RMS for President???
>  ...or ESR, he wants a new job ;)
> 
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[Emc-users] Dapatkan akses ke foto-foto saya dan lain-lainnya

[kurniadi engkur]

Hai,

Saya membuat profil Netlog dengan foto saya, video, blog, dan event dan saya 
ingin menambahkan kamu sebagai teman sehingga kamu dapat melihatnya. 
Pertama-tama, kamu harus mendaftar di Netlog! Setelah kamu login, kamu dapat 
membuat profil kamu sendiri.

Coba lihat:
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Salam,
kurniadi


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Re: [Emc-users] EMC2 and LabVIEW

[Andrew]

2012/1/13 Karl Cunningham 

> Labview can talk TCP/IP. Maybe it can interface with EMC2 that way.
>

2012/1/16 Anders Wallin 

> I've used LabView real-time and FPGA modules on Windows. There is a
>  LabView version for Linux, but last I checked there are no real-time
> or FPGA toolboxes for Linux/LabView.
>
> You could possibly write a Windows driver for a MESA card. I don't
> know how easy/difficult this would be. If you had this then you could
> use a LabView real-time program on Windows to control your machine and
> then have emc2 on Linux use the same card. Possibly with the same
> FPGA-firmware.
> I think LabVIEW's own FPGA-toolbox is a wrapper around the freely
> available Xilinx development tools. It works well with NIs own
> FPGA-cards, but I'm not sure it's worth the trouble to try to program
> a MESA card this way.


Thanks, I'm afraid it's too complicated for us. We desided to start with
Adlink PCI-8136 card which has 6 encoder inputs and 6 analog outputs.
Maybe later it will be possible to think about drivers for a MESA card.

Andrew
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Re: [Emc-users] EMC2 and LabVIEW

[Anders Wallin]

> Hello gentlemen,
> We'd like to control a parallel robot with EMC2 and also with LabVIEW
> sometimes. I just wonder if any MESA FPGA card can be used with LabVIEW, or
> is there any other card with EMC2 and LabVIEW support? Or some way to
> connect EMC2 and LabVIEW (that's unlikely).
> I guess that we should have 2 separate control systems, but if there's a
> way to avoid it...

I've used LabView real-time and FPGA modules on Windows. There is a
LabView version for Linux, but last I checked there are no real-time
or FPGA toolboxes for Linux/LabView.

You could possibly write a Windows driver for a MESA card. I don't
know how easy/difficult this would be. If you had this then you could
use a LabView real-time program on Windows to control your machine and
then have emc2 on Linux use the same card. Possibly with the same
FPGA-firmware.
I think LabVIEW's own FPGA-toolbox is a wrapper around the freely
available Xilinx development tools. It works well with NIs own
FPGA-cards, but I'm not sure it's worth the trouble to try to program
a MESA card this way.

Anders

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