Re: [Emc-users] Quiet toothed belts.

[Chris Albertson]

On Sat, Jul 25, 2020 at 10:58 AM John Dammeyer 
wrote:

>
> My 3D printer is at the low end of the scale for quality and although I
> use it for all sorts of things, I wouldn't use it to make a 3000 RPM pulley.
>

It really does work.  I used an Anet A6 printer I paid $180 for the
printers  Here is a video of the first time I tried runubng with not only
four 3D printed pulleys but two print belts.  I did not expect the printed
belts to work but they seem to last for a couple of hours.

I was expecting failure but, no the pulleys are near perfect and will last
for years.   The best idea was at first a joke but turns out to be a good
way to verify belt size before placing an order for a real belt.The key
has to make the printed pulley with a 24mm steel hub and put the set screws
in steel threads.Fully printed pulleys did not work well but these
hybrids do.
The mill has a 30T, 60T and two 40T hybrid pulleys made from plastic rings
pressed over 24mm steel cores

https://youtu.be/wupYP2NNsXI
https://youtu.be/tlMTksuOuZQ
-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Quiet toothed belts.

[John Dammeyer]

Thanks.  Good suggestions and warnings.  
 
Is it possible to mill the profile with the pulley horizontal?I guess it 
depends how thick the pulley is and how long a small end mill can be without 
breaking.   I'd guess the standard way is rotary indexer with pulley face 
vertical and ball mill.
 
My 3D printer is at the low end of the scale for quality and although I use it 
for all sorts of things, I wouldn't use it to make a 3000 RPM pulley.
 
Attached photo shows a 6 part print holding a Servo Motor, Planetary reduction 
drive coupled to another reduction drive for ultimately turning a lever through 
105 degrees.  It's a simulation of the real thing so the plastic is only used 
to duplicate the end product.  Works fine.  Who cares if it's a bit rough.
 

John
 
 
 
> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: July-25-20 10:28 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Quiet toothed belts.
> 
> Yes,  The the best and newest tooth profile the GT3 from Gates.  These are
> quiet and have there smallest backlash and also the smallest belt tension
> requirements.
> 
> Running a pass of a ball nose might make a working pully but the profile
> will not be exact.   If you must MAKE a uleey the trick is to go the the
> SDP/SI web sight (or McMaster Carr, or whatever) and download a CAD file
> for the part.  It is easy to mill a pully if it lacks flanges.  So make it
> in three parts and make some big washers to use as flanges if needed.
> You can also print a GT3 pulley.
> 
> Be careful with Chinnese suppliers they abuse the name convention.   In
> China "GT3" is a GT profile with a 3mm pitch. But elsewhere GT3 is the
> profile and you say "GT3 with 5mm pitch and 9mm width" or whatever.
> 
> Just like gears the profile changes with the pulley size because when you
> band a belt the teeth point inward depending on how tight you bend the
> belt. So if making you own, use a CAD file from a catalog.
> 
> Youcan also buy GT profile bar stock and slice it like bread to make custom
> pulleys.  Then you get a perfect profiles and any custom hub you like.
> 
> What I do is make a metal hub in steel and then press fit/epoxy a 3D
> printed ring of teeth over the hub,  These hold up really well and are easy
> to make.  On a pulley all the stress in on the hub and set screw.  The
> teeth only need to be as strong as the rubber teeth in the belt,  Aluminum
> is overkill. PLA works there.   But PLA hubs fail very quickly.
> 
> On Fri, Jul 24, 2020 at 12:04 PM John Dammeyer < 
> <mailto:jo...@autoartisans.com> jo...@autoartisans.com>
> wrote:
> 
> > What's the quietest profile/size belt for driving a spindle with 2HP up to
> > 3000 RPM.
> >
> > I recall someone saying the round groove is the best for this.   Since
> > we've been talking about gear cutters are there special cutters for that
> > belt profile available?
> >
> > Thanks
> > John
> >
> >
> >
> > ___
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> >  <https://lists.sourceforge.net/lists/listinfo/emc-users> 
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> 
> 
> --
> 
> Chris Albertson
> Redondo Beach, California
> 
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Re: [Emc-users] Quiet toothed belts.

[Chris Albertson]

Yes,  The the best and newest tooth profile the GT3 from Gates.  These are
quiet and have there smallest backlash and also the smallest belt tension
requirements.

Running a pass of a ball nose might make a working pully but the profile
will not be exact.   If you must MAKE a uleey the trick is to go the the
SDP/SI web sight (or McMaster Carr, or whatever) and download a CAD file
for the part.  It is easy to mill a pully if it lacks flanges.  So make it
in three parts and make some big washers to use as flanges if needed.
You can also print a GT3 pulley.

Be careful with Chinnese suppliers they abuse the name convention.   In
China "GT3" is a GT profile with a 3mm pitch. But elsewhere GT3 is the
profile and you say "GT3 with 5mm pitch and 9mm width" or whatever.

Just like gears the profile changes with the pulley size because when you
band a belt the teeth point inward depending on how tight you bend the
belt. So if making you own, use a CAD file from a catalog.

Youcan also buy GT profile bar stock and slice it like bread to make custom
pulleys.  Then you get a perfect profiles and any custom hub you like.

What I do is make a metal hub in steel and then press fit/epoxy a 3D
printed ring of teeth over the hub,  These hold up really well and are easy
to make.  On a pulley all the stress in on the hub and set screw.  The
teeth only need to be as strong as the rubber teeth in the belt,  Aluminum
is overkill. PLA works there.   But PLA hubs fail very quickly.

On Fri, Jul 24, 2020 at 12:04 PM John Dammeyer 
wrote:

> What's the quietest profile/size belt for driving a spindle with 2HP up to
> 3000 RPM.
>
> I recall someone saying the round groove is the best for this.   Since
> we've been talking about gear cutters are there special cutters for that
> belt profile available?
>
> Thanks
> John
>
>
>
> ___
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>


-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Quiet toothed belts.

[andy pugh]

On Fri, 24 Jul 2020 at 20:04, John Dammeyer  wrote:

> I recall someone saying the round groove is the best for this.   Since we've 
> been talking about gear cutters are there special cutters for that belt 
> profile available?

I have a hiob for T5 profile. If anyone wants teeth putting on a
custom pulley, you can send it to me.

-- 
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, 1912


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Re: [Emc-users] Quiet toothed belts.

[andrew beck]

I think you can just run a single pass through with a ballnose for a timing
belt.

Pretty sure that's for htd belts which are the most accurate and quite.  I
run T5 belts or t8 belts can transmit more torque



On Sat, Jul 25, 2020, 7:04 AM John Dammeyer  wrote:

> What's the quietest profile/size belt for driving a spindle with 2HP up to
> 3000 RPM.
>
> I recall someone saying the round groove is the best for this.   Since
> we've been talking about gear cutters are there special cutters for that
> belt profile available?
>
> Thanks
> John
>
>
>
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Re: [Emc-users] Quiet?

[Gregg Eshelman]

54'40" Or Fight! :) The USA needs two cities named Vancouver.

Google maple syrup theft for some interesting reading. As a protest against the 
Canadian Maple Syrup Cartel, the strategic maple syrup reserve was robbed a few 
years ago. Hundreds of plastic barrels were pumped dry, some were refilled with 
water. Some Canadians don't care for being told how much syrup they can 
produce, or if they're allowed to produce any at all.
The US hoards crude oil to control the price, Canada hoards maple syrup for the 
same reason.

 
  From: Dave Cole <linuxcncro...@gmail.com>
 To: emc-users@lists.sourceforge.net 
 Sent: Wednesday, June 8, 2016 7:51 AM
 Subject: Re: [Emc-users] Quiet?
   
On 6/8/2016 9:25 AM, andy pugh wrote:
> On 8 June 2016 at 14:13, Dave Cole <linuxcncro...@gmail.com> wrote:
>> This is a definite possibility. I have cousins in Canada and they have
>> all but told me that America has totally flipped out with Trump.
> They have probably looked at his suggestion that Mexico should pay for
> a wall, and are looking at the length of their own borders.
Think of the cost of putting a wall down the center of Lake Superior, 
Lake Huron, Lake Erie and Lake Ontario !

That would take a lot of Canadian wood!

Or perhaps they are frightened that Trump would "re-negotiate" the 
Canadian border, thus relaunching  the war of 1812, and we end up taking 
over Canada as the 51st state ??

There is a lot to fight for;  Everyone knows they have the best maple 
syrup.  ;-)
   
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Re: [Emc-users] Quiet?

[Gene Heskett]

On Wednesday 08 June 2016 12:53:33 John Kasunich wrote:

> On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:
> > Maybe, maybe not. Shrillaries victory speech last night came
> > straight out of Bernies socialist bible, and that scares the crap
> > out of me, lots more than the Donalds blowhard bluster.
>
> Guys, please.  We have a fair amount of off-topic stuff on this list,
> and for the most part that's OK.  But PLEASE, let's leave the
> politics out of it.
>
> Trump fans aren't going to convert Clinton fans, Clinton fans
> aren't going to convert Trump fans.  But everyone will have
> to hear the discussions and the arguments and the name-
> calling.  We're going to have enough (far too much) of that
> elsewhere for the next several months, lets not have it here.
>
> I'm not trying to single Gene out here.  Once these things start
> they inevitably go downhill, and this one started several messages
> ago.
>
> Let's just not start.

Point taken John. I hesitated several hours before deciding to post on 
that one just for that reason.  Now I'll hesitate about a year.  Or 
more.  We really do enjoy a list where we can escape from the sniping & 
inevitable hurt feelings and I apologize for that one.

One more set of cheap plastic shelves to make into raw materiel for trash 
trailer filling (or vacuum swarf suck up lines around the mill or 
lathe), and I'll about have room in the garage for a bigger lathe.

I am occasionally amazed at the stuff I am uncovering, like a set of 
6"x9" mirrors I've been intending to put on the rider so I can see what 
it is I just backed into. :)  Been on the shelf since about 2009 IIRC. 
The rider now has a huge set of chromed eyeballs looking back past me. 
Horrible on the coefficient of drag at speed though. :)  Hopefully they 
will be a bit of help when I have something hung on the hitchball now, 
trying to back it into place. I think I have the only rider in captivity 
with rear view mirrors AND a halogen headlight on it.  Rear running leds 
and 10x brighter brake leds next maybe?  Turn signals?

Remembering the song, "They forgot about my old John Deer."  

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] Quiet?

[Todd Zuercher]

Its all the ones who waste too much of their time watching WWE and reality TV.

I am fairly certain he would get himself impeached within a year if by some 
bizarre twist he would get elected.

Enough off topic, doesn't someone have a machine they need to talk about?

- Original Message -
From: "Peter Blodow" <p.blo...@dreki.de>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Sent: Wednesday, June 8, 2016 2:04:03 PM
Subject: Re: [Emc-users] Quiet?

Oh John,
for us over here "on the other side of the pond" it is exceedingly 
interesting what is being said about Donald in his own country. We all 
wonder who these Americans actually are that encourage him on his hate 
campaign and may even elect him... Keep writing!
Peter


Am 08.06.2016 18:53, schrieb John Kasunich:
>
> On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:
>
>> Maybe, maybe not. Shrillaries victory speech last night came straight out
>> of Bernies socialist bible, and that scares the crap out of me, lots
>> more than the Donalds blowhard bluster.
> Guys, please.  We have a fair amount of off-topic stuff on this list,
> and for the most part that's OK.  But PLEASE, let's leave the
> politics out of it.
>
> Trump fans aren't going to convert Clinton fans, Clinton fans
> aren't going to convert Trump fans.  But everyone will have
> to hear the discussions and the arguments and the name-
> calling.  We're going to have enough (far too much) of that
> elsewhere for the next several months, lets not have it here.
>
> I'm not trying to single Gene out here.  Once these things start
> they inevitably go downhill, and this one started several messages
> ago.
>
> Let's just not start.
>
>


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Re: [Emc-users] Quiet?

[John Kasunich]

On Wed, Jun 8, 2016, at 02:04 PM, Peter Blodow wrote:
> Oh John,
> for us over here "on the other side of the pond" it is exceedingly 
> interesting what is being said about Donald in his own country. We all 
> wonder who these Americans actually are that encourage him on his hate 
> campaign and may even elect him... Keep writing!

Not on the LINUXCNC mailing list!

-- 
  John Kasunich
  jmkasun...@fastmail.fm

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Re: [Emc-users] Quiet?

[Peter Blodow]

Oh John,
for us over here "on the other side of the pond" it is exceedingly 
interesting what is being said about Donald in his own country. We all 
wonder who these Americans actually are that encourage him on his hate 
campaign and may even elect him... Keep writing!
Peter


Am 08.06.2016 18:53, schrieb John Kasunich:
>
> On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:
>
>> Maybe, maybe not. Shrillaries victory speech last night came straight out
>> of Bernies socialist bible, and that scares the crap out of me, lots
>> more than the Donalds blowhard bluster.
> Guys, please.  We have a fair amount of off-topic stuff on this list,
> and for the most part that's OK.  But PLEASE, let's leave the
> politics out of it.
>
> Trump fans aren't going to convert Clinton fans, Clinton fans
> aren't going to convert Trump fans.  But everyone will have
> to hear the discussions and the arguments and the name-
> calling.  We're going to have enough (far too much) of that
> elsewhere for the next several months, lets not have it here.
>
> I'm not trying to single Gene out here.  Once these things start
> they inevitably go downhill, and this one started several messages
> ago.
>
> Let's just not start.
>
>


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Re: [Emc-users] Quiet?

[Dave Cole]

On 6/8/2016 12:53 PM, John Kasunich wrote:
>
> On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:
>
>> Maybe, maybe not. Shrillaries victory speech last night came straight out
>> of Bernies socialist bible, and that scares the crap out of me, lots
>> more than the Donalds blowhard bluster.
> Guys, please.  We have a fair amount of off-topic stuff on this list,
> and for the most part that's OK.  But PLEASE, let's leave the
> politics out of it.
>
> Trump fans aren't going to convert Clinton fans, Clinton fans
> aren't going to convert Trump fans.  But everyone will have
> to hear the discussions and the arguments and the name-
> calling.  We're going to have enough (far too much) of that
> elsewhere for the next several months, lets not have it here.
>
> I'm not trying to single Gene out here.  Once these things start
> they inevitably go downhill, and this one started several messages
> ago.
>
> Let's just not start.
>

Good point.
 >>But everyone will have
to hear the discussions and the arguments and the name calling

True.  And I can just turn on CNN if I want to hear that!

Also, it appears that the guys outside of the US are having WAY too much 
fun with this.  ;-)

 >>  Shrillaries victory speech...

Ha ha ... Very nice... I need to remember that one.  :-)

Dave





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Re: [Emc-users] Quiet?

[rayj]

I'll second that. There's plenty of other places to engage in political 
discussions, but very few to discuss LCNC.

Raymond Julian
Kettle River, MN

The things we admire in men, kindness and generosity, openness, honesty, 
understanding and feeling are the concomitants of failure in our system. 
And those traits we detest, sharpness, greed, acquisitiveness, meanness, 
egotism and self-interest are the traits of success. And while men 
admire the quality of the first they love the produce of the second. 
-John Steinbeck, novelist, Nobel laureate (1902-1968)

On 06/08/2016 11:53 AM, John Kasunich wrote:
>
>
> On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:
>
>> Maybe, maybe not. Shrillaries victory speech last night came straight out
>> of Bernies socialist bible, and that scares the crap out of me, lots
>> more than the Donalds blowhard bluster.
>
> Guys, please.  We have a fair amount of off-topic stuff on this list,
> and for the most part that's OK.  But PLEASE, let's leave the
> politics out of it.
>
> Trump fans aren't going to convert Clinton fans, Clinton fans
> aren't going to convert Trump fans.  But everyone will have
> to hear the discussions and the arguments and the name-
> calling.  We're going to have enough (far too much) of that
> elsewhere for the next several months, lets not have it here.
>
> I'm not trying to single Gene out here.  Once these things start
> they inevitably go downhill, and this one started several messages
> ago.
>
> Let's just not start.
>
>

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Re: [Emc-users] Quiet?

[MC Cason]

On 06/08/2016 08:51 AM, Dave Cole wrote:
> On 6/8/2016 9:25 AM, andy pugh wrote:
>> On 8 June 2016 at 14:13, Dave Cole  wrote:
>>> This is a definite possibility. I have cousins in Canada and they have
>>> all but told me that America has totally flipped out with Trump.
>> They have probably looked at his suggestion that Mexico should pay for
>> a wall, and are looking at the length of their own borders.
> Think of the cost of putting a wall down the center of Lake Superior,
> Lake Huron, Lake Erie and Lake Ontario !

   I don't think that Trump would bother with putting a wall down the 
middle of the lakes, he would just place it around the northern edge.  
Pretty much everyone that I know thinks that the Great Lakes belong to 
the US.

>
> That would take a lot of Canadian wood!
>
> Or perhaps they are frightened that Trump would "re-negotiate" the
> Canadian border, thus relaunching  the war of 1812, and we end up taking
> over Canada as the 51st state ??

   Yo do realize that in square miles, Canada is bigger than the US. 
Making it one state would be impractical.

>
> There is a lot to fight for;   Everyone knows they have the best maple
> syrup.  ;-)

  :)

>
> Dave

-- 
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Eagle3D - Created by Matthias Weißer
github.com/mcason/Eagle3D



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Re: [Emc-users] Quiet?

[W. Martinjak]

On 2016-06-08 18:53, John Kasunich wrote:
> Let's just not start. 
too late... ;)

-- 
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nur ihre Gegner sterben nach und nach"

Max Planck


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Re: [Emc-users] Quiet?

[John Kasunich]

On Wed, Jun 8, 2016, at 12:11 PM, Gene Heskett wrote:

> Maybe, maybe not. Shrillaries victory speech last night came straight out 
> of Bernies socialist bible, and that scares the crap out of me, lots 
> more than the Donalds blowhard bluster. 

Guys, please.  We have a fair amount of off-topic stuff on this list,
and for the most part that's OK.  But PLEASE, let's leave the 
politics out of it.

Trump fans aren't going to convert Clinton fans, Clinton fans
aren't going to convert Trump fans.  But everyone will have 
to hear the discussions and the arguments and the name-
calling.  We're going to have enough (far too much) of that
elsewhere for the next several months, lets not have it here.

I'm not trying to single Gene out here.  Once these things start
they inevitably go downhill, and this one started several messages
ago.

Let's just not start. 


-- 
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Re: [Emc-users] Quiet?

[Gene Heskett]

On Wednesday 08 June 2016 10:49:45 Dave Cole wrote:

> Well...  there were several GOP candidates at those early debates..
>
> So a lot of people "stepped up to the plate".
>
> He is just the last guy standing.
>
> How it came down to Trump I have no idea. I'm astounded that a
> guy can get to where he is, by saying what he has said.
>
> It may have something to do with something in the water, or watching
> too many reality TV shows.  :-/
>
Maybe, maybe not. Shrillaries victory speech last night came straight out 
of Bernies socialist bible, and that scares the crap out of me, lots 
more than the Donalds blowhard bluster.  He will get tamed and 
introduced to the real world should he win, but at least he is trying to 
point the direction.

Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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Re: [Emc-users] Quiet?

[Gene Heskett]

On Wednesday 08 June 2016 09:51:55 Dave Cole wrote:

> On 6/8/2016 9:25 AM, andy pugh wrote:
> > On 8 June 2016 at 14:13, Dave Cole  wrote:
> >> This is a definite possibility. I have cousins in Canada and they
> >> have all but told me that America has totally flipped out with
> >> Trump.
> >
> > They have probably looked at his suggestion that Mexico should pay
> > for a wall, and are looking at the length of their own borders.
>
> Think of the cost of putting a wall down the center of Lake Superior,
> Lake Huron, Lake Erie and Lake Ontario !
>
> That would take a lot of Canadian wood!
>
> Or perhaps they are frightened that Trump would "re-negotiate" the
> Canadian border, thus relaunching  the war of 1812, and we end up
> taking over Canada as the 51st state ??
>
> There is a lot to fight for;   Everyone knows they have the best maple
> syrup.  ;-)
>
> Dave

I don't know about that. I have half a gallon in the fridge I helped keep 
the fire fed to make, from some land the family of a niece of wife Dee 
leases from Cornell U., about 15 miles NE of Ithaca NY.  

What little of it I've tasted (I'm a DM-II) has been a heck of a lot 
better tasting than anything called Maple syrup you can buy in the 
stores.  Its the real thing, undiluted, even with traces of the fire 
under the boilers smoke.

Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
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Re: [Emc-users] Quiet?

[W. Martinjak]

On 2016-06-08 15:25, andy pugh wrote:
> On 8 June 2016 at 14:13, Dave Cole  wrote:
>> This is a definite possibility. I have cousins in Canada and they have
>> all but told me that America has totally flipped out with Trump.
> They have probably looked at his suggestion that Mexico should pay for
> a wall, and are looking at the length of their own borders.
>

YMMD!!

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nur ihre Gegner sterben nach und nach"

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Re: [Emc-users] Quiet?

[Dave Cole]

Well...  there were several GOP candidates at those early debates..

So a lot of people "stepped up to the plate".

He is just the last guy standing.

How it came down to Trump I have no idea. I'm astounded that a 
guy can get to where he is, by saying what he has said.

It may have something to do with something in the water, or watching too 
many reality TV shows.  :-/

Dave



On 6/8/2016 10:11 AM, Roland Jollivet wrote:
>>   >>Or the Trump thing could have most people hiding under the blankets.
>>
>> This is a definite possibility. I have cousins in Canada and they have
>> all but told me that America has totally flipped out with Trump. They
>> watch the US election process a lot closer than I ever realized and they
>> have never been this vocal about an election. Dave
>>
>>
> America is a big country with a lot of people, so I can't understand why
> someone doesn't, as Trump puts it, "step up to the plate"?
>
> You gotta commend the guy for doing so. No-one else is..
>
>
>
>
>
>
>
> On 6/8/2016 8:54 AM, Erik Christiansen wrote:
>> On 08.06.16 07:56, Rick Lair wrote:
>>> I was wondering the same thing Todd, and we were just actually talking
>>> about that here at the shop.
>>>
>>> Rick
>>>
>>> On 06/08/2016 07:36 AM, Todd Zuercher wrote:
 Two days with nothing from the mailing list. Are things really that
 quiet or is the mailing list messed up again?
>> It's just turned winter down under - that must mean it's now summer up
>> there, and mebbe everyone's out filling their lungs, or putting away the
>> snow-shovels. Let's just hope no-one's sitting in a dinghy in the
>> kitchen, fishing for machine tools down the basement stairs.
>>
>> Mind you, there are storms down here too, with a bit of coastline lost,
>> houses teetering, and record floods. The damage is much less expensive
>> than in Europe, though. Even the storm-surfers didn't break any necks.
>>
>> Or the Trump thing could have most people hiding under the blankets.
>> It's scaring people down here, and we're not officially one of the
>> states. (What's keeping people calm here is federal elections in 4 weeks
>> - the campaign is boring us to a state of deep somnolence, as both sides
>> avoid major issues like the plague, in case their inadequate policies
>> are found out.)
>>
>> Apropos the biting critters in Oz, we've lost two swimmers to sharks in
>> the last week, and two to crocs in the last three weeks. Doesn't change
>> our behaviour, so I guess it's the price of being in the wrong place at
>> the right time.
>>
>> Erik
>>
>>
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> traffic
>> patterns at an interface-level. Reveals which users, apps, and protocols
> are
>> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
>> J-Flow, sFlow and other flows. Make informed decisions using capacity
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Re: [Emc-users] Quiet?

[Dave Cole]

On 6/8/2016 9:25 AM, andy pugh wrote:
> On 8 June 2016 at 14:13, Dave Cole  wrote:
>> This is a definite possibility. I have cousins in Canada and they have
>> all but told me that America has totally flipped out with Trump.
> They have probably looked at his suggestion that Mexico should pay for
> a wall, and are looking at the length of their own borders.
Think of the cost of putting a wall down the center of Lake Superior, 
Lake Huron, Lake Erie and Lake Ontario !

That would take a lot of Canadian wood!

Or perhaps they are frightened that Trump would "re-negotiate" the 
Canadian border, thus relaunching  the war of 1812, and we end up taking 
over Canada as the 51st state ??

There is a lot to fight for;   Everyone knows they have the best maple 
syrup.  ;-)

Dave



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Re: [Emc-users] Quiet?

[Rick Lair]

On 06/08/2016 09:25 AM, andy pugh wrote:
> On 8 June 2016 at 14:13, Dave Cole  wrote:
>> This is a definite possibility. I have cousins in Canada and they have
>> all but told me that America has totally flipped out with Trump.
> They have probably looked at his suggestion that Mexico should pay for
> a wall, and are looking at the length of their own borders.
>
Now that is some funny shit Andy !!


Rick

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


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Re: [Emc-users] Quiet?

[andy pugh]

On 8 June 2016 at 14:13, Dave Cole  wrote:
> This is a definite possibility. I have cousins in Canada and they have
> all but told me that America has totally flipped out with Trump.

They have probably looked at his suggestion that Mexico should pay for
a wall, and are looking at the length of their own borders.

-- 
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] Quiet?

[Dave Cole]

I think everyone is out on their boats sailing ...  or maybe that is 
just my twisted perspective.

 >>Or the Trump thing could have most people hiding under the blankets.

This is a definite possibility. I have cousins in Canada and they have 
all but told me that America has totally flipped out with Trump. They 
watch the US election process a lot closer than I ever realized and they 
have never been this vocal about an election. Dave





On 6/8/2016 8:54 AM, Erik Christiansen wrote:
> On 08.06.16 07:56, Rick Lair wrote:
>> I was wondering the same thing Todd, and we were just actually talking
>> about that here at the shop.
>>
>> Rick
>>
>> On 06/08/2016 07:36 AM, Todd Zuercher wrote:
>>> Two days with nothing from the mailing list. Are things really that
>>> quiet or is the mailing list messed up again?
> It's just turned winter down under - that must mean it's now summer up
> there, and mebbe everyone's out filling their lungs, or putting away the
> snow-shovels. Let's just hope no-one's sitting in a dinghy in the
> kitchen, fishing for machine tools down the basement stairs.
>
> Mind you, there are storms down here too, with a bit of coastline lost,
> houses teetering, and record floods. The damage is much less expensive
> than in Europe, though. Even the storm-surfers didn't break any necks.
>
> Or the Trump thing could have most people hiding under the blankets.
> It's scaring people down here, and we're not officially one of the
> states. (What's keeping people calm here is federal elections in 4 weeks
> - the campaign is boring us to a state of deep somnolence, as both sides
> avoid major issues like the plague, in case their inadequate policies
> are found out.)
>
> Apropos the biting critters in Oz, we've lost two swimmers to sharks in
> the last week, and two to crocs in the last three weeks. Doesn't change
> our behaviour, so I guess it's the price of being in the wrong place at
> the right time.
>
> Erik
>
> --
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> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
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Re: [Emc-users] Quiet?

[Erik Christiansen]

On 08.06.16 07:56, Rick Lair wrote:
> I was wondering the same thing Todd, and we were just actually talking
> about that here at the shop.
> 
> Rick
> 
> On 06/08/2016 07:36 AM, Todd Zuercher wrote:
> > Two days with nothing from the mailing list. Are things really that
> > quiet or is the mailing list messed up again? 

It's just turned winter down under - that must mean it's now summer up
there, and mebbe everyone's out filling their lungs, or putting away the
snow-shovels. Let's just hope no-one's sitting in a dinghy in the
kitchen, fishing for machine tools down the basement stairs.

Mind you, there are storms down here too, with a bit of coastline lost,
houses teetering, and record floods. The damage is much less expensive
than in Europe, though. Even the storm-surfers didn't break any necks.

Or the Trump thing could have most people hiding under the blankets.
It's scaring people down here, and we're not officially one of the
states. (What's keeping people calm here is federal elections in 4 weeks
- the campaign is boring us to a state of deep somnolence, as both sides
avoid major issues like the plague, in case their inadequate policies
are found out.)

Apropos the biting critters in Oz, we've lost two swimmers to sharks in
the last week, and two to crocs in the last three weeks. Doesn't change
our behaviour, so I guess it's the price of being in the wrong place at
the right time.

Erik

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Re: [Emc-users] Quiet?

[Rick Lair]

I was wondering the same thing Todd, and we were just actually talking
about that here at the shop.


Rick



On 06/08/2016 07:36 AM, Todd Zuercher wrote:
> Two days with nothing from the mailing list. Are things really that quiet or 
> is the mailing list messed up again? 
>

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


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Re: [Emc-users] Quiet day, good time for a homing question?

[Marius Liebenberg]

Andy
Do you suggest then that the X is homed as far out as possible and the Z 
is homed as near to the chuck as possible?

On 2014-05-22 19:57, andy pugh wrote:
 On 22 May 2014 18:45, Sebastian Kuzminsky s...@highlab.com wrote:
 I've never set up or run a CNC lathe, but i think i'd want to home Z
 away from the chunk, it seems less prone to crashes.
 If you wind X out all the way that is normally unlikely.
 Conversely, if you have work set up on a tailstock centre or fixed
 steady then you have to remove it all to home the other direction.


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Re: [Emc-users] Quiet day, good time for a homing question?

[andy pugh]

On 23 May 2014 06:37, Gene Heskett ghesk...@wdtv.com wrote:
 Short of downloading the related pdf, opening it in acroread, there is not
 today, a link that takes you to the gcode, mcode or ocode descriptions in
 one or 2 clicks.

www.linuxcnc.org then click documentation in the title bar.
Then click all documentation in HTML to get to this page:
http://www.linuxcnc.org/docs/html/
Where there is an entry on homing:
http://www.linuxcnc.org/docs/html/config/ini_homing.html

-- 
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Re: [Emc-users] Quiet day, good time for a homing question?

[Sebastian Kuzminsky]

On 5/22/14 11:23 , Gene Heskett wrote:
 In setting up the homing switches on my lathe, there are two items in the
 .ini file I don't quite have the results I see, making any sense when I
 adjust them.

 These are HOME_POSITION, and HOME_OFFSET.

There's no .ini variable named HOME_POSITION.  Did you mean just 
[AXIS_*]HOME?

[AXIS_*]HOME_OFFSET is the location of the home switch.

[AXIS_*]HOME is where the axis should park immediately after homing.

These are both described in the homing documentation:

http://linuxcnc.org/docs/2.6/html/config/ini_homing.html


 The Z switch, is now hidden under the back lip of the rear of the bed,
 location such (determined by a handy screw hole for the backsplash that is
 no longer there since the x motor is on the rear) that its closed by the
 rear gib riding over its roller as it approaches the spindle, in this case
 about an 25mm from hitting the chuck.

 Currently I do X first, and leave it sitting about a mm inboard of that
 switch, so if there is no tool on the tool post, it can then approach the
 chuck with no danger of hitting it, find the Z switch, do the double
 shuffle at low speed, then somehow it backs away about 30mm and puts the
 star on the z axis dro.
...
 Where I am puzzled is that both HOME_POSITION and HOME_OFFSET seem to
 control where its gets parked.  How can I differentiate them so I get the
 effect I want, which is to park Z another 50mm to the right so its safe to
 drop a tool on the toolpost and start the spindle?

I've never set up or run a CNC lathe, but i think i'd want to home Z 
away from the chunk, it seems less prone to crashes.

I'll assume your machine cannot travel to the left of your Z home switch.

If that's true i would use the Z home switch as the minimum Z value, Z=0 
in G53.  I'd set Z's HOME_OFFSET to 0 mm (so that the home switch is at 
0mm in G53) and i'd set Z's HOME to 50 mm (so that the machine parks 50 
mm to the right of the home switch after homing).

Make sense?


-- 
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Re: [Emc-users] Quiet day, good time for a homing question?

[andy pugh]

On 22 May 2014 18:45, Sebastian Kuzminsky s...@highlab.com wrote:
 I've never set up or run a CNC lathe, but i think i'd want to home Z
 away from the chunk, it seems less prone to crashes.

If you wind X out all the way that is normally unlikely.
Conversely, if you have work set up on a tailstock centre or fixed
steady then you have to remove it all to home the other direction.

-- 
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Re: [Emc-users] Quiet day, good time for a homing question?

[Gene Heskett]

On Thursday 22 May 2014 13:45:55 Sebastian Kuzminsky did opine
And Gene did reply:
 On 5/22/14 11:23 , Gene Heskett wrote:
  In setting up the homing switches on my lathe, there are two items in
  the .ini file I don't quite have the results I see, making any sense
  when I adjust them.
  
  These are HOME_POSITION, and HOME_OFFSET.
 
 There's no .ini variable named HOME_POSITION.  Did you mean just
 [AXIS_*]HOME?

Yes, working from ancient wet ram. :)
 
 [AXIS_*]HOME_OFFSET is the location of the home switch.
Aha! I don't believe it says that that clearly in the docs.

So ideally I should use the offset by setting it according to how far it 
can go past the switch LED going off before the toolpost contacts the 
chuck.  And call that HOME_OFFSET for that axis.
 
 [AXIS_*]HOME is where the axis should park immediately after homing.

A good 100mm away from the chuck.
 
Gotcha, Thanks Seb.

 These are both described in the homing documentation:
 
 http://linuxcnc.org/docs/2.6/html/config/ini_homing.html
 
[...]
 
 I'll assume your machine cannot travel to the left of your Z home
 switch.

Yes it can, but not far enough to come back off the switch since that gib 
is about 100mm long.  I would be well and truly into the chuck body by 
about 50mm by then.
 
 If that's true i would use the Z home switch as the minimum Z value,
 Z=0 in G53.  I'd set Z's HOME_OFFSET to 0 mm (so that the home switch
 is at 0mm in G53) and i'd set Z's HOME to 50 mm (so that the machine
 parks 50 mm to the right of the home switch after homing).
 
 Make sense?

Somewhat, but see above.  What I want is a truly safe parking position.

Then my plan to put 8mmx2.5 ball screws in my micromill just got trashed, 
the shop where I took the table Monday morning to get the screw  nut 
clearance groove in its bottom deepened enough to clear the ball nut 
holder, just called and has been swamped with oil field machinery work 
since  can't get to me for at least a month.

I wish I had a plan B.  Even another 30 thou of room and I could pull it 
off.  So, back to the drawing board.  I wonder how much I can remove from 
the sides of the nut before I am in danger of finding the ball races 
outers...

That of course means I can't make the nut pocket on the lathe, but will 
need to use the mill and make a deep (0.925) double d flat pocket.  S/B 
fun writing that code!

Damn, everything I like is either illegal, immoral, or fattening.  and 
with my back, fattening is a no-no.  In 2002 I weighed 205 lbs, yesterday 
158.8 lbs but I'm starving to get there.

Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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Re: [Emc-users] Quiet day, good time for a homing question?

[Gene Heskett]

On Thursday 22 May 2014 13:45:55 Sebastian Kuzminsky did opine
And Gene did reply:
 On 5/22/14 11:23 , Gene Heskett wrote:
  In setting up the homing switches on my lathe, there are two items in
  the .ini file I don't quite have the results I see, making any sense
  when I adjust them.
  
  These are HOME_POSITION, and HOME_OFFSET.
 
 There's no .ini variable named HOME_POSITION.  Did you mean just
 [AXIS_*]HOME?
 
 [AXIS_*]HOME_OFFSET is the location of the home switch.
 
 [AXIS_*]HOME is where the axis should park immediately after homing.
 
 These are both described in the homing documentation:
 
 http://linuxcnc.org/docs/2.6/html/config/ini_homing.html

This page seems much more complete in its explanation than my nearly 2 yo 
printed copy.

Had I been able to locate it in the 2.5 branch, It  would have sufficed to 
answer my questions.

However, since the wiki.linuxcnc.org site no longer has a search function, 
and the index seems to be a will-o-the-wisp, I couldn't find it.  For new 
bee, or even an old fart like me, that lack hurts the sites ability to 
answer even an old bee's questions.

I would hope at some point, the lack of a search function, and a 
meaningful index can both be addressed.
 
Thank you Seb.

Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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Re: [Emc-users] Quiet day, good time for a homing question?

[Chris Radek]

On Thu, May 22, 2014 at 07:26:42PM -0400, Gene Heskett wrote:
 answer my questions.
 
 However, since the wiki.linuxcnc.org site no longer has a search function, 
 and the index seems to be a will-o-the-wisp, I couldn't find it.  For new 
 bee, or even an old fart like me, that lack hurts the sites ability to 
 answer even an old bee's questions.
 
 I would hope at some point, the lack of a search function, and a 
 meaningful index can both be addressed.

There's a search box at the bottom of every page.

There's a full index link, PageIndex, at the top of every page.

Any other kind of index other than a simple list of pages has to be
generated by a human - please help if you have ideas.

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Re: [Emc-users] Quiet day, good time for a homing question?

[Gene Heskett]

On Thursday 22 May 2014 23:00:08 Chris Radek did opine
And Gene did reply:
 On Thu, May 22, 2014 at 07:26:42PM -0400, Gene Heskett wrote:
  answer my questions.
  
  However, since the wiki.linuxcnc.org site no longer has a search
  function, and the index seems to be a will-o-the-wisp, I couldn't
  find it.  For new bee, or even an old fart like me, that lack hurts
  the sites ability to answer even an old bee's questions.
  
  I would hope at some point, the lack of a search function, and a
  meaningful index can both be addressed.
 
 There's a search box at the bottom of every page.

Bottom?  Must be the only site on the planet that doesn't have it at the 
top.  Google style.

TBT, Chris, if I ever saw it at the bottom, it just didn't register as I 
wasn't looking for it by the time I got to the bottom of a page.

 There's a full index link, PageIndex, at the top of every page.

Short of downloading the related pdf, opening it in acroread, there is not 
today, a link that takes you to the gcode, mcode or ocode descriptions in 
one or 2 clicks.

The search function may do it, but in the middle of the night, up because 
it feels like someone is running acupuncture needles under my left 
kneecap, + recycle the last glass of ice water  check my email so I don't 
lose my geek creds, so it won't get checked yet tonight.
 
 Any other kind of index other than a simple list of pages has to be
 generated by a human - please help if you have ideas.

At one point, some time back, ISTR there was a link, buried to be sure, 
under 2.5 docs that gave one an index to every paragraph bold faced 
heading like home switches that took you directly to that page. I recall 
finding it maybe 6 weeks back when I put switches on this lathe, but I 
couldn't find it again when I asked the question that started this thread.  
Which is why I asked.

But I guess I'll get started on plan B, modifying the X ballnut so it will 
fit in the allocated space under the table.  Unless somebody shoots that 
idea down.  Description  query about the suitability is out there.

Thanks for the heads on on the search boxes location, Chris.

Cheers, Gene Heskett
-- 
There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
Genes Web page http://geneslinuxbox.net:6309/gene
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS

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