Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Peter Blodow]

Andy,
the use of those length units depends on the circle who uses them. 
Woodworkers use cm, metalworkers mm, opticians micrometers, nuclear 
scientists nanometers. The aim is to leave off unused zeroes, either in 
front or after the decimal point. Hectoliters are the most important 
measure of beer hereabouts because it is convenient to simply count 
barrels instead pouring beer in bulky liquid measures, and Austrian 
houewives buy their sausage and meat in Deka's.


By the way, the Gramm is very well named after a dead scientist: Saxo 
Grammaticus, living in the middle ages around 1100, famous Danish 
historian, who wrote a history of Denmark in 16 volumes. He even 
attempted to write an English grammar - English and Danish were not so 
far apart in those days -, but failed because it would have become too 
heavy for the reason of the many exceptions to its rules (at the time, 
there were such). Therefore, the unit of weight was named after him.


My best regards!
Peter Blodow
Dipl.-Phys.

Am 24.02.2019 um 10:31 schrieb andy pugh:


The hecto, centi, deci, deka  are deprecated in SI, so cm should not be
used.

I am a bit annoyed that the base mass unit is the kg, ie that it has an
embedded prefix. That is one unit that could very usefully be named after a
dead scientist.






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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[andy pugh]

On Sat, 16 Feb 2019, 14:06 Erik Christiansen, 
wrote:

> But we freely use ohm, kilohm, and megohm to avoid superfluous
> zeroes. Similarly, 1 hPa is immediately recognisable as 1 millibar,
> given that a bar is 1e5 Pa. None of hPa, kPa, MPa, bar do anything other
> than move the decimal point, providing notational shorthand. I will
> admit that Aussies are slow to adopt the cm, using only mm and meter, so
> a door is 2040 mm, not just 204 cm. Give it another generation, perhaps.
>

The hecto, centi, deci, deka  are deprecated in SI, so cm should not be
used.

I am a bit annoyed that the base mass unit is the kg, ie that it has an
embedded prefix. That is one unit that could very usefully be named after a
dead scientist.

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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Peter Blodow]

Chris,
just think of the radioactive people like the Curies and Bequerel (rad. 
activity),  Gray (energy dosis), Sievert (man-equivalent dosis). Then 
there was Georg Ohm for el. resistance and, for what his name is read 
"Mho" backwards in the US, Siemens for conductivity. Then, most 
important, Coulomb for charge, Weber for magnetic flux, Tesla for the 
magnetic field power and, for chemists, since 1999 Katal for katalytic 
force (joke, George F. Katal didn't exist). Celsius should be replaced 
by Kelvin - same scale units, but relative to absolute zero (-273°C).
Sorry to say, this system highly satisfies scientists, but in practical 
lab or shop use it's annoying sometimes, mostly because of bulky numbers 
and many zeroes like Farad, Pascal or Kelvin.

Peter


Am 16.02.2019 um 20:18 schrieb Chris Albertson:

Notice that now-days many of the "standard" SI units are named for
long-dead scientests

Volt,
Ampere,
Watt,
Henry,
Farad,
Joule,
Hertz,
Newton,
Pascal,
Celsus,
Kelvin,

Likely a lot more I can't remember.




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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Chris Albertson]

Notice that now-days many of the "standard" SI units are named for
long-dead scientests

Volt,
Ampere,
Watt,
Henry,
Farad,
Joule,
Hertz,
Newton,
Pascal,
Celsus,
Kelvin,

Likely a lot more I can't remember.  If you know a little history you
can remember them.   I think that is why they use proper names,
because each has a back-story making it easier to remember.  If you
know some history of science the unit names are impossible to forget.
They even changed the names of some old units to make them proper
names.  We used to say  "Cycles" but now use "Hertz" and we used to
use "Centigrade" but now "Celsius".

So in this case, read a little about  Blaise Pascal.   He did many
experiments with barometers so they named the unit of pressure
(Newtons per square meter) after him.  Likewise, it was Newton who
un-scrambled the difference between force, weight, and mass so the
unit of force is Newton.

By now we all know what "0.8 MPa" means.  It is 0.8 million newtons
per square meter.

>
> > Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation
> > from chinglish please. I haven't a clue what the heck 0.8MPa means.

-- 

Chris Albertson
Redondo Beach, California


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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[jrmitchellj]

Most of the pneumatic valves I use have a small actuator (coil) that opens
a small air passage to push the thimble within the valve body to the
requested position.
I recall that they are called "pilot valves".
So they use a very small amount of current to do a very big job.

I have used Parker pilot valves in the past, but they have gotten way too
expensive, so I am trying some from China.
I found (on ebay) Toolots, that carry products from Pneulead.  I hope to
get them installed on my mill this weekend.

I am using 3/8" units, as I needed that for my power drawbar.

--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573


"No problem can be solved from the same level of consciousness that created
it"Albert Einstein


On Sat, Feb 16, 2019 at 6:14 AM Peter Blodow  wrote:

> Andy, you forgot that blood pressure in Europe is measured in mm of
> mercury...
> Peter
>
> Am 16.02.2019 um 12:47 schrieb Andy Pugh:
> >
> >> On 16 Feb 2019, at 09:21, Erik Christiansen 
> wrote:
> >>
> >> as lb/in^2 isn't right
> > It can be, if you measure oil consumption in slugs.
> >
> > We use hPa a lot at work. It annoys me.
> > In fact the same software in various places uses hPa, kPa, MPa, bar, psi
> and inches of mercury!
> >
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>
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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Peter Blodow]

Andy, you forgot that blood pressure in Europe is measured in mm of 
mercury...

Peter

Am 16.02.2019 um 12:47 schrieb Andy Pugh:



On 16 Feb 2019, at 09:21, Erik Christiansen  wrote:

as lb/in^2 isn't right

It can be, if you measure oil consumption in slugs.

We use hPa a lot at work. It annoys me.
In fact the same software in various places uses hPa, kPa, MPa, bar, psi and 
inches of mercury!

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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Erik Christiansen]

On 16.02.19 11:47, Andy Pugh wrote:
> 
> 
> > On 16 Feb 2019, at 09:21, Erik Christiansen  wrote:
> > 
> > as lb/in^2 isn't right 
> 
> It can be, if you measure oil consumption in slugs. 

True ... but then a slug is lbf s^2 / ft, and I have enough trouble with
those venerable units without resorting to the wriggly ones.

> We use hPa a lot at work. It annoys me. 
> In fact the same software in various places uses hPa, kPa, MPa, bar, psi and 
> inches of mercury!

But we freely use ohm, kilohm, and megohm to avoid superfluous
zeroes. Similarly, 1 hPa is immediately recognisable as 1 millibar,
given that a bar is 1e5 Pa. None of hPa, kPa, MPa, bar do anything other
than move the decimal point, providing notational shorthand. I will
admit that Aussies are slow to adopt the cm, using only mm and meter, so
a door is 2040 mm, not just 204 cm. Give it another generation, perhaps.

I am though old enough that my tire inflation is gauged in psi. But the
design of the concrete slab for my off-grid build is specified in MPa.
That makes life easy as I know my machine masses in kg and their base
areas in m².

The only unit which annoys me is the basispoint, used in finance to
shift the decimal point two digits ... er, like hPa.

Erik


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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Saturday 16 February 2019 06:47:58 Andy Pugh wrote:

> > On 16 Feb 2019, at 09:21, Erik Christiansen
> >  wrote:
> >
> > as lb/in^2 isn't right
>
> It can be, if you measure oil consumption in slugs.
>
> We use hPa a lot at work. It annoys me.
> In fact the same software in various places uses hPa, kPa, MPa, bar,
> psi and inches of mercury!
>
And I sense a certain amount of marketting "if you can't dazzle them with 
brilliance, baffle them with bull shit" attitudes in quite a bit of this 
stuff.

Si standards for this stuff are nice, but theres way too many of them. 
Often using the exact same method to measure, but shifting the implied 
decimal points location. Particularly since the 'a' may be assumed to be 
one atmosphere, conveniently given a std value but fully capable of 
varying 25% according to the barometer and altitude in actual practice, 
at altitudes capable of supporting human life comfortably.

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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Saturday 16 February 2019 04:21:10 Erik Christiansen wrote:

> On 15.02.19 20:46, Gene Heskett wrote:
> > I found a 12 volt 1/4" version, but what the heck is
> > Operating pressure 0.15~0.8MPa supposed to tell me??? Need a
> > translation from chinglish please. I haven't a clue what the heck
> > 0.8MPa means.
>
> OK, it's been answered for that number, but for catching the next
> fish, on your linux box:
>
> $ units
> ...
>
> You have: 0.8 MPa
> You want: psi
> * 116.03019
> / 0.0086184466
>
> That's forward and backward conversions.
> If insisting on more basic expression of units, you'd need:
>
> You want: lbf/in^2
>
> as lb/in^2 isn't right and it'll tell you.
> (It does keep you on your toes, unit-wise.)
>
> Erik
>
Which is one of the reasons I stayed with 1/4" valves. Going up to 1/2" 
stuff seemed to imply needing lots more actuating forces. If 1/8" had 
been available, I likely would have bought one of those as an 1/8" port 
should have supplied sufficient air.

besides, I only have the output regulator turned up to 60 or so, enough 
to clean the area with a hand nozzle.
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Cheers, Gene Heskett
-- 
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 soap, ballot, jury, and ammo. Please use in that order."
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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Andy Pugh]

> On 16 Feb 2019, at 09:21, Erik Christiansen  wrote:
> 
> as lb/in^2 isn't right 

It can be, if you measure oil consumption in slugs. 

We use hPa a lot at work. It annoys me. 
In fact the same software in various places uses hPa, kPa, MPa, bar, psi and 
inches of mercury!

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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Erik Christiansen]

On 15.02.19 20:46, Gene Heskett wrote:
> I found a 12 volt 1/4" version, but what the heck is
> Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation 
> from chinglish please. I haven't a clue what the heck 0.8MPa means.

OK, it's been answered for that number, but for catching the next fish,
on your linux box:

$ units
...

You have: 0.8 MPa
You want: psi
* 116.03019
/ 0.0086184466

That's forward and backward conversions.
If insisting on more basic expression of units, you'd need:

You want: lbf/in^2

as lb/in^2 isn't right and it'll tell you.
(It does keep you on your toes, unit-wise.)

Erik


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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Friday 15 February 2019 21:19:19 Chris Albertson wrote:

> The "Pascal" is the SI unit for pressure.
>
> MPa is a MegaPascal or 1,000,000 Pascal
>
> 1Mpa is about 145 PSI in American units.  Or more accurately 10 Bar

that I am familiar with.

Thanks Chris.


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



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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Chris Albertson]

The "Pascal" is the SI unit for pressure.

MPa is a MegaPascal or 1,000,000 Pascal

1Mpa is about 145 PSI in American units.  Or more accurately 10 Bar



On Fri, Feb 15, 2019 at 5:48 PM Gene Heskett  wrote:

> On Wednesday 13 February 2019 05:41:38 Gene Heskett wrote:
>
> > On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
> > > I recently made a couple of coolant units based on eBay mister heads
> > > like this one
> > >  > >8m m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These ones
> > > with the straight end on the nozzle seem to be better quality than
> > > the ones with a nozzle that just tapers down to a blunt point. The
> > > problem with all of these eBay misters is that they generate a fine
> > > mist, which gets everywhere. I made some modifications on mine to
> > > work around the problem. The air jet in the model I linked above is
> > > just over 2mm diameter. I extended the oil jet using 2mm stainless
> > > tube so it now sticks out about 1.5" past the end of the brass
> > > nozzle. This leaves a thin annular gap for the air to get out. As
> > > the area of the air jet is now very small you can run quite high
> > > pressure (60 - 100 psi) with very low flow. By the time the air
> > > reaches the end of the oil jet it has slowed down a lot and no
> > > longer has the energy to  break the oil into a fine mist. You end up
> > > with a column of air carrying a stream of droplets in the middle. On
> > > alu oil consumption is minimal. I use a neat cutting oil and my
> > > previous tank was the filter bowl on an air regulator. That was
> > > enough for several days of machining.
> > >
> > > One down side of this setup is that it won't suck the coolant up
> > > from the tank. I used a filter canister as my reservoir. Shop air is
> > > supplied at full pressure to the nozzle through a solenoid valve.
> > > There is a tee in the line which feeds a regulator to drop the
> > > pressure to ~10 psi for the reservoir. Theoretically those filter
> > > canisters can take 100psi but that sort of pressure in a plastic
> > > tank scares me.
> > >
> > > By the way Gene, if you are buying a solenoid valve from eBay, get
> > > an Airtac valve. They are available in a wide range of voltages and
> > > configurations. They are reasonably well made and can handle 100%
> > > duty cycle.
> > >
> > > Les
> >
> I found a 12 volt 1/4" version, but what the heck is
> Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation
> from chinglish please. I haven't a clue what the heck 0.8MPa means.
>
>
> > So I probably bought the wrong one. Expertise comes from the
> > experience of doing it wrong. :)
> >
> > > On 13/02/2019 01:31, Phillip Carter wrote:
> > > > I use a water filter canister similar to this:
> > > > https://www.cnczone.com/forums/uncategorised-metalworking-machines
> > > >/1 02934-built-fog-less-coolant-mister.html
> > > >  > > >s/ 102934-built-fog-less-coolant-mister.html>
> > > >
> > > > Cheers, Phill
> >
> > Cheers, Gene Heskett
>
>
> 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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-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Friday 15 February 2019 20:54:26 Phillip Carter wrote:

> > On 16 Feb 2019, at 12:46 pm, Gene Heskett 
> > wrote:
> >
> > On Wednesday 13 February 2019 05:41:38 Gene Heskett wrote:
> >> On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
> >>> I recently made a couple of coolant units based on eBay mister
> >>> heads like this one
> >>>  >>>r- 8m m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These
> >>> ones with the straight end on the nozzle seem to be better quality
> >>> than the ones with a nozzle that just tapers down to a blunt
> >>> point. The problem with all of these eBay misters is that they
> >>> generate a fine mist, which gets everywhere. I made some
> >>> modifications on mine to work around the problem. The air jet in
> >>> the model I linked above is just over 2mm diameter. I extended the
> >>> oil jet using 2mm stainless tube so it now sticks out about 1.5"
> >>> past the end of the brass nozzle. This leaves a thin annular gap
> >>> for the air to get out. As the area of the air jet is now very
> >>> small you can run quite high pressure (60 - 100 psi) with very low
> >>> flow. By the time the air reaches the end of the oil jet it has
> >>> slowed down a lot and no longer has the energy to  break the oil
> >>> into a fine mist. You end up with a column of air carrying a
> >>> stream of droplets in the middle. On alu oil consumption is
> >>> minimal. I use a neat cutting oil and my previous tank was the
> >>> filter bowl on an air regulator. That was enough for several days
> >>> of machining.
> >>>
> >>> One down side of this setup is that it won't suck the coolant up
> >>> from the tank. I used a filter canister as my reservoir. Shop air
> >>> is supplied at full pressure to the nozzle through a solenoid
> >>> valve. There is a tee in the line which feeds a regulator to drop
> >>> the pressure to ~10 psi for the reservoir. Theoretically those
> >>> filter canisters can take 100psi but that sort of pressure in a
> >>> plastic tank scares me.
> >>>
> >>> By the way Gene, if you are buying a solenoid valve from eBay, get
> >>> an Airtac valve. They are available in a wide range of voltages
> >>> and configurations. They are reasonably well made and can handle
> >>> 100% duty cycle.
> >>>
> >>> Les
> >
> > I found a 12 volt 1/4" version, but what the heck is
> > Operating pressure 0.15~0.8MPa supposed to tell me??? Need a
> > translation from chinglish please. I haven't a clue what the heck
> > 0.8MPa means.
>
> 9&oq=mpa+to+psi&aqs=chrome..69i57.3701j0j9&sourceid=chrome&ie=UTF-8>
>
0.8MPa=116.03016 psi. I think it will work.

Tanks Phil

> >> So I probably bought the wrong one. Expertise comes from the
> >> experience of doing it wrong. :)
> >>
> >>> On 13/02/2019 01:31, Phillip Carter wrote:
>  I use a water filter canister similar to this:
>  https://www.cnczone.com/forums/uncategorised-metalworking-machine
> s /1 02934-built-fog-less-coolant-mister.html
>   e s/ 102934-built-fog-less-coolant-mister.html>
> 
>  Cheers, Phill
> >>
> >> Cheers, Gene Heskett
> >
> > 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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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] Would this blower be usefull as a low pressure mister for this 6040

[Phillip Carter]

> On 16 Feb 2019, at 12:46 pm, Gene Heskett  wrote:
> 
> On Wednesday 13 February 2019 05:41:38 Gene Heskett wrote:
> 
>> On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
>>> I recently made a couple of coolant units based on eBay mister heads
>>> like this one
>>> >> 8m m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These ones
>>> with the straight end on the nozzle seem to be better quality than
>>> the ones with a nozzle that just tapers down to a blunt point. The
>>> problem with all of these eBay misters is that they generate a fine
>>> mist, which gets everywhere. I made some modifications on mine to
>>> work around the problem. The air jet in the model I linked above is
>>> just over 2mm diameter. I extended the oil jet using 2mm stainless
>>> tube so it now sticks out about 1.5" past the end of the brass
>>> nozzle. This leaves a thin annular gap for the air to get out. As
>>> the area of the air jet is now very small you can run quite high
>>> pressure (60 - 100 psi) with very low flow. By the time the air
>>> reaches the end of the oil jet it has slowed down a lot and no
>>> longer has the energy to  break the oil into a fine mist. You end up
>>> with a column of air carrying a stream of droplets in the middle. On
>>> alu oil consumption is minimal. I use a neat cutting oil and my
>>> previous tank was the filter bowl on an air regulator. That was
>>> enough for several days of machining.
>>> 
>>> One down side of this setup is that it won't suck the coolant up
>>> from the tank. I used a filter canister as my reservoir. Shop air is
>>> supplied at full pressure to the nozzle through a solenoid valve.
>>> There is a tee in the line which feeds a regulator to drop the
>>> pressure to ~10 psi for the reservoir. Theoretically those filter
>>> canisters can take 100psi but that sort of pressure in a plastic
>>> tank scares me.
>>> 
>>> By the way Gene, if you are buying a solenoid valve from eBay, get
>>> an Airtac valve. They are available in a wide range of voltages and
>>> configurations. They are reasonably well made and can handle 100%
>>> duty cycle.
>>> 
>>> Les
>> 
> I found a 12 volt 1/4" version, but what the heck is
> Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation 
> from chinglish please. I haven't a clue what the heck 0.8MPa means.
> 



> 
>> So I probably bought the wrong one. Expertise comes from the
>> experience of doing it wrong. :)
>> 
>>> On 13/02/2019 01:31, Phillip Carter wrote:
 I use a water filter canister similar to this:
 https://www.cnczone.com/forums/uncategorised-metalworking-machines
 /1 02934-built-fog-less-coolant-mister.html
 
 
 Cheers, Phill
>> 
>> Cheers, Gene Heskett
> 
> 
> 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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Wednesday 13 February 2019 05:41:38 Gene Heskett wrote:

> On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
> > I recently made a couple of coolant units based on eBay mister heads
> > like this one
> >  >8m m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These ones
> > with the straight end on the nozzle seem to be better quality than
> > the ones with a nozzle that just tapers down to a blunt point. The
> > problem with all of these eBay misters is that they generate a fine
> > mist, which gets everywhere. I made some modifications on mine to
> > work around the problem. The air jet in the model I linked above is
> > just over 2mm diameter. I extended the oil jet using 2mm stainless
> > tube so it now sticks out about 1.5" past the end of the brass
> > nozzle. This leaves a thin annular gap for the air to get out. As
> > the area of the air jet is now very small you can run quite high
> > pressure (60 - 100 psi) with very low flow. By the time the air
> > reaches the end of the oil jet it has slowed down a lot and no
> > longer has the energy to  break the oil into a fine mist. You end up
> > with a column of air carrying a stream of droplets in the middle. On
> > alu oil consumption is minimal. I use a neat cutting oil and my
> > previous tank was the filter bowl on an air regulator. That was
> > enough for several days of machining.
> >
> > One down side of this setup is that it won't suck the coolant up
> > from the tank. I used a filter canister as my reservoir. Shop air is
> > supplied at full pressure to the nozzle through a solenoid valve.
> > There is a tee in the line which feeds a regulator to drop the
> > pressure to ~10 psi for the reservoir. Theoretically those filter
> > canisters can take 100psi but that sort of pressure in a plastic
> > tank scares me.
> >
> > By the way Gene, if you are buying a solenoid valve from eBay, get
> > an Airtac valve. They are available in a wide range of voltages and
> > configurations. They are reasonably well made and can handle 100%
> > duty cycle.
> >
> > Les
>
I found a 12 volt 1/4" version, but what the heck is
Operating pressure 0.15~0.8MPa supposed to tell me??? Need a translation 
from chinglish please. I haven't a clue what the heck 0.8MPa means.

 
> So I probably bought the wrong one. Expertise comes from the
> experience of doing it wrong. :)
>
> > On 13/02/2019 01:31, Phillip Carter wrote:
> > > I use a water filter canister similar to this:
> > > https://www.cnczone.com/forums/uncategorised-metalworking-machines
> > >/1 02934-built-fog-less-coolant-mister.html
> > >  > >s/ 102934-built-fog-less-coolant-mister.html>
> > >
> > > Cheers, Phill
>
> Cheers, Gene Heskett


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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Wednesday 13 February 2019 11:23:38 Les Newell wrote:

> Hi Gene,
>
> You aren't the only one. I have a couple of the other type sitting
> around unused.
>
> Les

Nice to see I have company in this camp, Les. It doesn't feel quite so 
lonesome. ;-)

Got the light up, nice and bright. Now all I have to do is sit on my 
hands till all the other stuff gets here. I think in the meantime, when 
some decent 6mm carriage bolts arrive to replace the junk bolts supplied 
for holddown clamps, I'll make provisions to insulate them so I can run 
a probe wire to the workpiece. Make the alignment gismos work a lot 
easier.  But darn it, those came in SS only on fleabay, so I hope the 
brass inserted finger nuts I bought for that aren't going to gall to the 
SS bolts. I hate SS with a passion, I've had to break too many of them 
in 5/16" thru 7/16" and replace with copper, 300' up in the air while 
working on transmission lines. And no one has invented a never-seize 
that works on SS crap.

I think something along the lines of formica ought to cover that, and it 
will glue on a lot better than teflon or kaptan.  Anything tuff enough 
to stand the pressure and prevent the clamps from shorting the workpiece 
to the bed will do.

> > So I probably bought the wrong one. Expertise comes from the
> > experience of doing it wrong. :)
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Les Newell]

Hi Gene,

You aren't the only one. I have a couple of the other type sitting 
around unused.


Les


So I probably bought the wrong one. Expertise comes from the experience
of doing it wrong. :)




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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040 (Les Newell)

[Les Newell]

Hi Wallace,

I attached a pic in my previous post. I have attached that pic plus one 
with the nozzle disassembled.


Les

On 13/02/2019 09:36, Marshland Engineering wrote:


Any chance of a picture or sketch. I can't visualize your description.

Thanks Wallace
New Zealand.


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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Wednesday 13 February 2019 09:33:08 jrmitchellj wrote:

> With that thin of a chip it is doing more "rubbing" than "cutting",
> and with a lot of heat in the chip, it is likely going to start
> friction welding the chips to the cutter.
> Things can go downhill very fast, and a broken cutter will result!

I saw that impending disaster while making the panel for the go704's new 
interface, stopped and cleaned out the cutter before I resumed. 4 or 5 
times. I got a usable panel, nearly burnt my hands on it, and held the 
120 psi air hose on it to finish the dsub connectors, last in the 
program. For the next one, I'll have the air, and a 8oz spray bottle of 
water handy.

Being what one could call "out in the puckerbrush" here in WV, it will be 
a week or more before any of the other stuff arrives, so I've commented 
out the 5 minute cooling delays, and changed the code as I talked about 
and you clipped so there are no more descending ramps in it. 

But if I actually cut alu, I'll have a finger on the esc key in case I 
start to see color from alu pileup in the tool.  In fact, I've bought a 
5000 lumem led stick lamp from Wallies, to hang on the bottom of the 
2x4' shelf the computer and drivers are mounted on, about 30" above the 
gantry bed, so I'll get that un-boxed and installed so I can see better.

> With the cooling rig that I have, the part often comes off the mill
> cooler than when it went on.  I keep the mist quantity very low, so
> the air moving it evaporates it quickly.

That implies pure water, as in distilled. I have that in gallon jugs 
because of the wifes oxygen reducer uses about a pint a day. It's also 
what I have in the motors coolant tank. About 3 gallons ATM.

Thanks J. R.
>
> --J. Ray Mitchell Jr.
> jrmitche...@gmail.com
> (818)324-7573
>
>
> "No problem can be solved from the same level of consciousness that
> created it"Albert Einstein
>
> On Wed, Feb 13, 2019 at 2:44 AM Gene Heskett  
wrote:
> > On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
> > > I recently made a couple of coolant units based on eBay mister
> > > heads like this one
> > >  > >r-8m m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These
> > > ones with the straight end on the nozzle seem to be better quality
> > > than the ones with a nozzle that just tapers down to a blunt
> > > point. The problem with all of these eBay misters is that they
> > > generate a fine mist, which gets everywhere. I made some
> > > modifications on mine to work around the problem. The air jet in
> > > the model I linked above is just over 2mm diameter. I extended the
> > > oil jet using 2mm stainless tube so it now sticks out about 1.5"
> > > past the end of the brass nozzle. This leaves a thin annular gap
> > > for the air to get out. As the area of the air jet is now very
> > > small you can run quite high pressure (60 - 100 psi) with very low
> > > flow. By the time the air reaches the end of the oil jet it has
> > > slowed down a lot and no longer has the energy to  break the oil
> > > into a fine mist. You end up with a column of air carrying a
> > > stream of droplets in the middle. On alu oil consumption is
> > > minimal. I use a neat cutting oil and my previous tank was the
> > > filter bowl on an air regulator. That was enough for several days
> > > of machining.
> > >
> > > One down side of this setup is that it won't suck the coolant up
> > > from the tank. I used a filter canister as my reservoir. Shop air
> > > is supplied at full pressure to the nozzle through a solenoid
> > > valve. There is a tee in the line which feeds a regulator to drop
> > > the pressure to ~10 psi for the reservoir. Theoretically those
> > > filter canisters can take 100psi but that sort of pressure in a
> > > plastic tank scares me.
> > >
> > > By the way Gene, if you are buying a solenoid valve from eBay, get
> > > an Airtac valve. They are available in a wide range of voltages
> > > and configurations. They are reasonably well made and can handle
> > > 100% duty cycle.
> > >
> > > Les
> >
> > So I probably bought the wrong one. Expertise comes from the
> > experience of doing it wrong. :)
> >
> > > On 13/02/2019 01:31, Phillip Carter wrote:
> > > > I use a water filter canister similar to this:
> > > > https://www.cnczone.com/forums/uncategorised-metalworking-machin
> > > >es/1 02934-built-fog-less-coolant-mister.html
> > > >  > > >nes/ 102934-built-fog-less-coolant-mister.html>
> > > >
> > > > Cheers, Phill
> >
> > 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] Would this blower be usefull as a low pressure mister for this 6040

[jrmitchellj]

With that thin of a chip it is doing more "rubbing" than "cutting", and
with a lot of heat in the chip, it is likely going to start friction
welding the chips to the cutter.
Things can go downhill very fast, and a broken cutter will result!

With the cooling rig that I have, the part often comes off the mill cooler
than when it went on.  I keep the mist quantity very low, so the air moving
it evaporates it quickly.



--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573


"No problem can be solved from the same level of consciousness that created
it"Albert Einstein


On Wed, Feb 13, 2019 at 2:44 AM Gene Heskett  wrote:

> On Wednesday 13 February 2019 03:46:53 Les Newell wrote:
>
> > I recently made a couple of coolant units based on eBay mister heads
> > like this one
> >  >m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These ones with
> > the straight end on the nozzle seem to be better quality than the ones
> > with a nozzle that just tapers down to a blunt point. The problem with
> > all of these eBay misters is that they generate a fine mist, which
> > gets everywhere. I made some modifications on mine to work around the
> > problem. The air jet in the model I linked above is just over 2mm
> > diameter. I extended the oil jet using 2mm stainless tube so it now
> > sticks out about 1.5" past the end of the brass nozzle. This leaves a
> > thin annular gap for the air to get out. As the area of the air jet is
> > now very small you can run quite high pressure (60 - 100 psi) with
> > very low flow. By the time the air reaches the end of the oil jet it
> > has slowed down a lot and no longer has the energy to  break the oil
> > into a fine mist. You end up with a column of air carrying a stream of
> > droplets in the middle. On alu oil consumption is minimal. I use a
> > neat cutting oil and my previous tank was the filter bowl on an air
> > regulator. That was enough for several days of machining.
> >
> > One down side of this setup is that it won't suck the coolant up from
> > the tank. I used a filter canister as my reservoir. Shop air is
> > supplied at full pressure to the nozzle through a solenoid valve.
> > There is a tee in the line which feeds a regulator to drop the
> > pressure to ~10 psi for the reservoir. Theoretically those filter
> > canisters can take 100psi but that sort of pressure in a plastic tank
> > scares me.
> >
> > By the way Gene, if you are buying a solenoid valve from eBay, get an
> > Airtac valve. They are available in a wide range of voltages and
> > configurations. They are reasonably well made and can handle 100% duty
> > cycle.
> >
> > Les
>
> So I probably bought the wrong one. Expertise comes from the experience
> of doing it wrong. :)
>
> >
> > On 13/02/2019 01:31, Phillip Carter wrote:
> > > I use a water filter canister similar to this:
> > > https://www.cnczone.com/forums/uncategorised-metalworking-machines/1
> > >02934-built-fog-less-coolant-mister.html
> > >  > >102934-built-fog-less-coolant-mister.html>
> > >
> > > Cheers, Phill
>
>
> 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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Wednesday 13 February 2019 03:46:53 Les Newell wrote:

> I recently made a couple of coolant units based on eBay mister heads
> like this one
> m-Air-Pipe-CNC-Lathe-Milling-Machine/172271983174?>. These ones with
> the straight end on the nozzle seem to be better quality than the ones
> with a nozzle that just tapers down to a blunt point. The problem with
> all of these eBay misters is that they generate a fine mist, which
> gets everywhere. I made some modifications on mine to work around the
> problem. The air jet in the model I linked above is just over 2mm
> diameter. I extended the oil jet using 2mm stainless tube so it now
> sticks out about 1.5" past the end of the brass nozzle. This leaves a
> thin annular gap for the air to get out. As the area of the air jet is
> now very small you can run quite high pressure (60 - 100 psi) with
> very low flow. By the time the air reaches the end of the oil jet it
> has slowed down a lot and no longer has the energy to  break the oil
> into a fine mist. You end up with a column of air carrying a stream of
> droplets in the middle. On alu oil consumption is minimal. I use a
> neat cutting oil and my previous tank was the filter bowl on an air
> regulator. That was enough for several days of machining.
>
> One down side of this setup is that it won't suck the coolant up from
> the tank. I used a filter canister as my reservoir. Shop air is
> supplied at full pressure to the nozzle through a solenoid valve.
> There is a tee in the line which feeds a regulator to drop the
> pressure to ~10 psi for the reservoir. Theoretically those filter
> canisters can take 100psi but that sort of pressure in a plastic tank
> scares me.
>
> By the way Gene, if you are buying a solenoid valve from eBay, get an
> Airtac valve. They are available in a wide range of voltages and
> configurations. They are reasonably well made and can handle 100% duty
> cycle.
>
> Les

So I probably bought the wrong one. Expertise comes from the experience 
of doing it wrong. :)

>
> On 13/02/2019 01:31, Phillip Carter wrote:
> > I use a water filter canister similar to this:
> > https://www.cnczone.com/forums/uncategorised-metalworking-machines/1
> >02934-built-fog-less-coolant-mister.html
> >  >102934-built-fog-less-coolant-mister.html>
> >
> > Cheers, Phill


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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Wednesday 13 February 2019 00:25:04 jrmitchellj wrote:

> Yes, and Yes.
> The units Andy sited  on EBay look like a similar design to what I
> have.
>
> The key is to keep the bottle a bit lower than the exit plane of the
> nozzle, so that when the air is shut off, the coolant drains back, not
> continuing to syphon (dribble) out the nozzle.
>
> --J. Ray Mitchell Jr.
> jrmitche...@gmail.com
> (818)324-7573
>
That means the pop bottle has to be sitting on the table, below the 
machines deck. And that a short fat container would feed more 
consistently than a tall skinny pop bottle because the lift needed would 
be less of a change as its used up and the level in the container drops.

Ok. But laying in bed, thinking my coding style may be part of the 
problem in generating an excess of heating. I'm drilling holes by 
ramping down to the target depth, which is into the spoil board by 
passing the final depth to a G3 along with a P number so it goes about 8 
to 10 thou deeper per turn of the g3.

I'm seeing in my mind, a huge heat load because the bottom of the mill is 
actually cutting a sub .1 shaving" as the mill turns.  Its a 3 flute 
mill. You could probably read the funny's thru that chip, which isn't 
carrying away any heat considering that mill's bottom edges can be seen 
to be chipped under a scope.

Would I reduce this heat load by making that a loop, and stepping down 10 
thou at the origin point of the circular path, then cutting a 10 thou 
chip in the next trip around the circle? That stop & drop might leave a 
mark, but it would be hidden when the connector fills the hole.

What I'm seeing in my mind says that alone could get the job done and at 
considerably less generated heat simply because the chip is bigger 
instead of floating away on the passing air currents

What say the experts?

As much of this 400+ LOC is in subs,(and comments) the place to edit is 
in the sub, so it would be a relatively easy fix. Cutting the dsub would 
also need fixed as I am currently ramping down in the first quadrants 
cut, but just marching along for the other 3 runs to cut the d-shape. A 
single plunge cut replacing the ramp sounds like a good idea there too.

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] Would this blower be usefull as a low pressure mister for this 6040 (Les Newell)

[Marshland Engineering]

 I extended the oil jet using 2mm stainless tube so it now 
>sticks out about 1.5" past the end of the brass nozzle. This leaves a 
>thin annular gap for the air to get out. As the area of the air jet is 
>now very small you can run quite high pressure (60 - 100 psi) with very 
>low flow. By the time the air reaches the end of the oil jet it has 
>slowed down a lot and no longer has the energy to? break the oil into a 
>fine mist. You end up with a column of air carrying a stream of droplets 
>in the middle. 

Any chance of a picture or sketch. I can't visualize your description. 

Thanks Wallace
New Zealand.



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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Les Newell]

I recently made a couple of coolant units based on eBay mister heads 
like this one 
. 
These ones with the straight end on the nozzle seem to be better quality 
than the ones with a nozzle that just tapers down to a blunt point. The 
problem with all of these eBay misters is that they generate a fine 
mist, which gets everywhere. I made some modifications on mine to work 
around the problem. The air jet in the model I linked above is just over 
2mm diameter. I extended the oil jet using 2mm stainless tube so it now 
sticks out about 1.5" past the end of the brass nozzle. This leaves a 
thin annular gap for the air to get out. As the area of the air jet is 
now very small you can run quite high pressure (60 - 100 psi) with very 
low flow. By the time the air reaches the end of the oil jet it has 
slowed down a lot and no longer has the energy to  break the oil into a 
fine mist. You end up with a column of air carrying a stream of droplets 
in the middle. On alu oil consumption is minimal. I use a neat cutting 
oil and my previous tank was the filter bowl on an air regulator. That 
was enough for several days of machining.


One down side of this setup is that it won't suck the coolant up from 
the tank. I used a filter canister as my reservoir. Shop air is supplied 
at full pressure to the nozzle through a solenoid valve. There is a tee 
in the line which feeds a regulator to drop the pressure to ~10 psi for 
the reservoir. Theoretically those filter canisters can take 100psi but 
that sort of pressure in a plastic tank scares me.


By the way Gene, if you are buying a solenoid valve from eBay, get an 
Airtac valve. They are available in a wide range of voltages and 
configurations. They are reasonably well made and can handle 100% duty 
cycle.


Les

On 13/02/2019 01:31, Phillip Carter wrote:

I use a water filter canister similar to this:
https://www.cnczone.com/forums/uncategorised-metalworking-machines/102934-built-fog-less-coolant-mister.html
 


Cheers, Phill


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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[jrmitchellj]

The flow rate of the coolant is adjusted by rotating the nozzle at the end
of the flex line.
You can even adjust to cut off the coolant flow completely, and just have
air flow on the work.

--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573


"No problem can be solved from the same level of consciousness that created
it"Albert Einstein


On Tue, Feb 12, 2019 at 9:25 PM jrmitchellj  wrote:

> Yes, and Yes.
> The units Andy sited  on EBay look like a similar design to what I have.
>
> The key is to keep the bottle a bit lower than the exit plane of the
> nozzle,
> so that when the air is shut off, the coolant drains back, not continuing
> to syphon (dribble) out the nozzle.
>
> --J. Ray Mitchell Jr.
> jrmitche...@gmail.com
> (818)324-7573
>
>
> "No problem can be solved from the same level of consciousness that
> created it"Albert Einstein
>
>
> On Tue, Feb 12, 2019 at 8:57 PM Gene Heskett  wrote:
>
>> On Tuesday 12 February 2019 22:55:43 jrmitchellj wrote:
>>
>> > I just use a 16oz water bottle with a magnet attached.  Drop the
>> > pickup tube into it, and the coolant is drawn out.
>> >
>> > I mix up the coolant in small amounts, as it seems to grow a slime in
>> > it if it is around too long.
>> >
>> I've heard that. So your are mixing from a gallon of concentrate at 10 or
>> 20 parts water to 1 of concentrate?
>>
>> > --J. Ray Mitchell Jr.
>> > jrmitche...@gmail.com
>> >
>> You don't have an equalizing pressure in the container? All by venturi
>> syphon?
>>
>> That I assume changes the design of the mixer, or will the coaxial design
>> still work for the injector, a teeny tube set into a slightly loose hole
>> so the air came out outside the little tube and misted the little bit of
>> fluid fed by a limiting needle valve from a container with src air
>> pressure in it.  Used more oil that I figured it would and while it
>> worked well, but an hours running had the shop visibiity down to 10 feet
>> or so, and my lungs complaining.  Using pure syphoning from atmospheric
>> should cut that back quite a bit, and I could set it in a cup holder on
>> the back of the gantry crossbar, and the lower atmospheric in the bottle
>> pressure should make for bigger droplets.  If it still syphons ok, its
>> all a plus.
>>
>> Thanks J. Ray.
>>
>> >
>> > "No problem can be solved from the same level of consciousness that
>> > created it"Albert Einstein
>> >
>> > On Tue, Feb 12, 2019 at 7:10 PM Ken Strauss 
>> wrote:
>> > > Have you considered using a 2l PET plastic soft drink bottle?
>> > >
>> > > > -Original Message-
>> > > > From: Phillip Carter [mailto:phillcarte...@gmail.com]
>> > > > Sent: Tuesday, February 12, 2019 8:31 PM
>> > > > To: linuxcnc-users-list
>> > > > Subject: Re: [Emc-users] Would this blower be usefull as a low
>> > > > pressure
>> > >
>> > > mister
>> > >
>> > > > for this 6040
>> > > >
>> > > > I use a water filter canister similar to this:
>> > > > https://www.cnczone.com/forums/uncategorised-metalworking-
>> > > > machines/102934-built-fog-less-coolant-mister.html
>> > > > <https://www.cnczone.com/forums/uncategorised-metalworking-
>> > > > machines/102934-built-fog-less-coolant-mister.html>
>> > > >
>> > > > Cheers, Phill
>> > > >
>> > > > > On 13 Feb 2019, at 12:16 pm, Gene Heskett 
>> > >
>> > > wrote:
>> > > > > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
>> > > > >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett
>> > > > >> 
>> > > > >
>> > > > > wrote:
>> > > > >>> So it appears
>> > > > >>>
>> > > > >>> I'll have to saw off a bit of brass, find my teeny brass
>> > > > >>> tubing supply and hope I have enough to make another.
>> > > > >>> Unfortunately, the hobby shop where I bought it closed up 5
>> > > > >>> years back from old age, so now I am at ebay's time sinking
>> > > > >>> mercy at getting some more.
>> > > > >>
>> > > > >> It might make more sense, if buying  from ebay, to get a
>> > > > >> ready-made mi

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[jrmitchellj]

Yes, and Yes.
The units Andy sited  on EBay look like a similar design to what I have.

The key is to keep the bottle a bit lower than the exit plane of the nozzle,
so that when the air is shut off, the coolant drains back, not continuing
to syphon (dribble) out the nozzle.

--J. Ray Mitchell Jr.
jrmitche...@gmail.com
(818)324-7573


"No problem can be solved from the same level of consciousness that created
it"Albert Einstein


On Tue, Feb 12, 2019 at 8:57 PM Gene Heskett  wrote:

> On Tuesday 12 February 2019 22:55:43 jrmitchellj wrote:
>
> > I just use a 16oz water bottle with a magnet attached.  Drop the
> > pickup tube into it, and the coolant is drawn out.
> >
> > I mix up the coolant in small amounts, as it seems to grow a slime in
> > it if it is around too long.
> >
> I've heard that. So your are mixing from a gallon of concentrate at 10 or
> 20 parts water to 1 of concentrate?
>
> > --J. Ray Mitchell Jr.
> > jrmitche...@gmail.com
> >
> You don't have an equalizing pressure in the container? All by venturi
> syphon?
>
> That I assume changes the design of the mixer, or will the coaxial design
> still work for the injector, a teeny tube set into a slightly loose hole
> so the air came out outside the little tube and misted the little bit of
> fluid fed by a limiting needle valve from a container with src air
> pressure in it.  Used more oil that I figured it would and while it
> worked well, but an hours running had the shop visibiity down to 10 feet
> or so, and my lungs complaining.  Using pure syphoning from atmospheric
> should cut that back quite a bit, and I could set it in a cup holder on
> the back of the gantry crossbar, and the lower atmospheric in the bottle
> pressure should make for bigger droplets.  If it still syphons ok, its
> all a plus.
>
> Thanks J. Ray.
>
> >
> > "No problem can be solved from the same level of consciousness that
> > created it"Albert Einstein
> >
> > On Tue, Feb 12, 2019 at 7:10 PM Ken Strauss 
> wrote:
> > > Have you considered using a 2l PET plastic soft drink bottle?
> > >
> > > > -Original Message-----
> > > > From: Phillip Carter [mailto:phillcarte...@gmail.com]
> > > > Sent: Tuesday, February 12, 2019 8:31 PM
> > > > To: linuxcnc-users-list
> > > > Subject: Re: [Emc-users] Would this blower be usefull as a low
> > > > pressure
> > >
> > > mister
> > >
> > > > for this 6040
> > > >
> > > > I use a water filter canister similar to this:
> > > > https://www.cnczone.com/forums/uncategorised-metalworking-
> > > > machines/102934-built-fog-less-coolant-mister.html
> > > > <https://www.cnczone.com/forums/uncategorised-metalworking-
> > > > machines/102934-built-fog-less-coolant-mister.html>
> > > >
> > > > Cheers, Phill
> > > >
> > > > > On 13 Feb 2019, at 12:16 pm, Gene Heskett 
> > >
> > > wrote:
> > > > > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> > > > >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett
> > > > >> 
> > > > >
> > > > > wrote:
> > > > >>> So it appears
> > > > >>>
> > > > >>> I'll have to saw off a bit of brass, find my teeny brass
> > > > >>> tubing supply and hope I have enough to make another.
> > > > >>> Unfortunately, the hobby shop where I bought it closed up 5
> > > > >>> years back from old age, so now I am at ebay's time sinking
> > > > >>> mercy at getting some more.
> > > > >>
> > > > >> It might make more sense, if buying  from ebay, to get a
> > > > >> ready-made mister nozzle:
> > > > >>
> > > > >> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> > > > >
> > > > > So I've bought one with dual nozzles, for about $14, but none of
> > > > > the search terms I've used has come up with a suitable coolant
> > > > > tank to use with it. What has stuck up a hand to wave at me is
> > > > > $250 and up.  It seems to me that a filter canister suitable for
> > > > > up to 40 psi, holding a quart of coolant ought to be $75 or
> > > > > less.
> > > > >
> > > > > Thanks everybody
> > > > >
> > > > > Cheers, Gene Heskett
> > > > > --
> > > > > "There a

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Tuesday 12 February 2019 22:55:43 jrmitchellj wrote:

> I just use a 16oz water bottle with a magnet attached.  Drop the
> pickup tube into it, and the coolant is drawn out.
>
> I mix up the coolant in small amounts, as it seems to grow a slime in
> it if it is around too long.
>
I've heard that. So your are mixing from a gallon of concentrate at 10 or 
20 parts water to 1 of concentrate?

> --J. Ray Mitchell Jr.
> jrmitche...@gmail.com
>
You don't have an equalizing pressure in the container? All by venturi 
syphon? 

That I assume changes the design of the mixer, or will the coaxial design 
still work for the injector, a teeny tube set into a slightly loose hole 
so the air came out outside the little tube and misted the little bit of 
fluid fed by a limiting needle valve from a container with src air 
pressure in it.  Used more oil that I figured it would and while it 
worked well, but an hours running had the shop visibiity down to 10 feet 
or so, and my lungs complaining.  Using pure syphoning from atmospheric 
should cut that back quite a bit, and I could set it in a cup holder on 
the back of the gantry crossbar, and the lower atmospheric in the bottle 
pressure should make for bigger droplets.  If it still syphons ok, its 
all a plus.

Thanks J. Ray.

>
> "No problem can be solved from the same level of consciousness that
> created it"Albert Einstein
>
> On Tue, Feb 12, 2019 at 7:10 PM Ken Strauss  
wrote:
> > Have you considered using a 2l PET plastic soft drink bottle?
> >
> > > -Original Message-
> > > From: Phillip Carter [mailto:phillcarte...@gmail.com]
> > > Sent: Tuesday, February 12, 2019 8:31 PM
> > > To: linuxcnc-users-list
> > > Subject: Re: [Emc-users] Would this blower be usefull as a low
> > > pressure
> >
> > mister
> >
> > > for this 6040
> > >
> > > I use a water filter canister similar to this:
> > > https://www.cnczone.com/forums/uncategorised-metalworking-
> > > machines/102934-built-fog-less-coolant-mister.html
> > > <https://www.cnczone.com/forums/uncategorised-metalworking-
> > > machines/102934-built-fog-less-coolant-mister.html>
> > >
> > > Cheers, Phill
> > >
> > > > On 13 Feb 2019, at 12:16 pm, Gene Heskett 
> >
> > wrote:
> > > > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> > > >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett
> > > >> 
> > > >
> > > > wrote:
> > > >>> So it appears
> > > >>>
> > > >>> I'll have to saw off a bit of brass, find my teeny brass
> > > >>> tubing supply and hope I have enough to make another.
> > > >>> Unfortunately, the hobby shop where I bought it closed up 5
> > > >>> years back from old age, so now I am at ebay's time sinking
> > > >>> mercy at getting some more.
> > > >>
> > > >> It might make more sense, if buying  from ebay, to get a
> > > >> ready-made mister nozzle:
> > > >>
> > > >> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> > > >
> > > > So I've bought one with dual nozzles, for about $14, but none of
> > > > the search terms I've used has come up with a suitable coolant
> > > > tank to use with it. What has stuck up a hand to wave at me is
> > > > $250 and up.  It seems to me that a filter canister suitable for
> > > > up to 40 psi, holding a quart of coolant ought to be $75 or
> > > > less.
> > > >
> > > > Thanks everybody
> > > >
> > > > 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>
> > > >
> > > >
> > > >
> > > > ___
> > > > Emc-users mailing list
> > > > Emc-users@lists.sourceforge.net
> > > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> ___
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>



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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Tuesday 12 February 2019 22:07:38 Ken Strauss wrote:

> Have you considered using a 2l PET plastic soft drink bottle?

Ahh, no. We don't buy the stuff, so it hadn't crossed my mind.  Around 
this camp its coffee, water, near beer for me, an occasional 8oz coke 
for the missus, or coffee with a little baileys. A 5th of bailey's or 
black jack is a 2 year supply.

I can probably raid the neighbors recycle bin for one. I'd assume you've 
a method for making a 2 port cap to hold 25 psi? Description plz.

Thanks Ken.

> > -Original Message-
> > From: Phillip Carter [mailto:phillcarte...@gmail.com]
> > Sent: Tuesday, February 12, 2019 8:31 PM
> > To: linuxcnc-users-list
> > Subject: Re: [Emc-users] Would this blower be usefull as a low
> > pressure
>
> mister
>
> > for this 6040
> >
> > I use a water filter canister similar to this:
> > https://www.cnczone.com/forums/uncategorised-metalworking-
> > machines/102934-built-fog-less-coolant-mister.html
> > <https://www.cnczone.com/forums/uncategorised-metalworking-
> > machines/102934-built-fog-less-coolant-mister.html>
> >
> > Cheers, Phill
> >
> > > On 13 Feb 2019, at 12:16 pm, Gene Heskett 
> > > wrote:
> > >
> > > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> > >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett 
> > >
> > > wrote:
> > >>> So it appears
> > >>>
> > >>> I'll have to saw off a bit of brass, find my teeny brass tubing
> > >>> supply and hope I have enough to make another. Unfortunately,
> > >>> the hobby shop where I bought it closed up 5 years back from old
> > >>> age, so now I am at ebay's time sinking mercy at getting some
> > >>> more.
> > >>
> > >> It might make more sense, if buying  from ebay, to get a
> > >> ready-made mister nozzle:
> > >>
> > >> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> > >
> > > So I've bought one with dual nozzles, for about $14, but none of
> > > the search terms I've used has come up with a suitable coolant
> > > tank to use with it. What has stuck up a hand to wave at me is
> > > $250 and up.  It seems to me that a filter canister suitable for
> > > up to 40 psi, holding a quart of coolant ought to be $75 or less.
> > >
> > > Thanks everybody
> > >
> > > 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>
> > >
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>



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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[jrmitchellj]

I just use a 16oz water bottle with a magnet attached.  Drop the pickup
tube into it, and the coolant is drawn out.

I mix up the coolant in small amounts, as it seems to grow a slime in it if
it is around too long.

--J. Ray Mitchell Jr.
jrmitche...@gmail.com



"No problem can be solved from the same level of consciousness that created
it"Albert Einstein


On Tue, Feb 12, 2019 at 7:10 PM Ken Strauss  wrote:

> Have you considered using a 2l PET plastic soft drink bottle?
>
> > -Original Message-
> > From: Phillip Carter [mailto:phillcarte...@gmail.com]
> > Sent: Tuesday, February 12, 2019 8:31 PM
> > To: linuxcnc-users-list
> > Subject: Re: [Emc-users] Would this blower be usefull as a low pressure
> mister
> > for this 6040
> >
> > I use a water filter canister similar to this:
> > https://www.cnczone.com/forums/uncategorised-metalworking-
> > machines/102934-built-fog-less-coolant-mister.html
> > <https://www.cnczone.com/forums/uncategorised-metalworking-
> > machines/102934-built-fog-less-coolant-mister.html>
> >
> > Cheers, Phill
> >
> > > On 13 Feb 2019, at 12:16 pm, Gene Heskett 
> wrote:
> > >
> > > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> > >
> > >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett 
> > > wrote:
> > >>> So it appears
> > >>>
> > >>> I'll have to saw off a bit of brass, find my teeny brass tubing
> > >>> supply and hope I have enough to make another. Unfortunately, the
> > >>> hobby shop where I bought it closed up 5 years back from old age, so
> > >>> now I am at ebay's time sinking mercy at getting some more.
> > >>
> > >> It might make more sense, if buying  from ebay, to get a ready-made
> > >> mister nozzle:
> > >>
> > >> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> > >
> > > So I've bought one with dual nozzles, for about $14, but none of the
> > > search terms I've used has come up with a suitable coolant tank to use
> > > with it. What has stuck up a hand to wave at me is $250 and up.  It
> > > seems to me that a filter canister suitable for up to 40 psi, holding a
> > > quart of coolant ought to be $75 or less.
> > >
> > > Thanks everybody
> > >
> > > 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>
> > >
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
>
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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Ken Strauss]

Have you considered using a 2l PET plastic soft drink bottle?

> -Original Message-
> From: Phillip Carter [mailto:phillcarte...@gmail.com]
> Sent: Tuesday, February 12, 2019 8:31 PM
> To: linuxcnc-users-list
> Subject: Re: [Emc-users] Would this blower be usefull as a low pressure
mister
> for this 6040
>
> I use a water filter canister similar to this:
> https://www.cnczone.com/forums/uncategorised-metalworking-
> machines/102934-built-fog-less-coolant-mister.html
> <https://www.cnczone.com/forums/uncategorised-metalworking-
> machines/102934-built-fog-less-coolant-mister.html>
>
> Cheers, Phill
>
> > On 13 Feb 2019, at 12:16 pm, Gene Heskett  wrote:
> >
> > On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> >
> >> On Tue, 12 Feb 2019 at 21:48, Gene Heskett 
> > wrote:
> >>> So it appears
> >>>
> >>> I'll have to saw off a bit of brass, find my teeny brass tubing
> >>> supply and hope I have enough to make another. Unfortunately, the
> >>> hobby shop where I bought it closed up 5 years back from old age, so
> >>> now I am at ebay's time sinking mercy at getting some more.
> >>
> >> It might make more sense, if buying  from ebay, to get a ready-made
> >> mister nozzle:
> >>
> >> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> >
> > So I've bought one with dual nozzles, for about $14, but none of the
> > search terms I've used has come up with a suitable coolant tank to use
> > with it. What has stuck up a hand to wave at me is $250 and up.  It
> > seems to me that a filter canister suitable for up to 40 psi, holding a
> > quart of coolant ought to be $75 or less.
> >
> > Thanks everybody
> >
> > 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>
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[Phillip Carter]

I use a water filter canister similar to this:
https://www.cnczone.com/forums/uncategorised-metalworking-machines/102934-built-fog-less-coolant-mister.html
 


Cheers, Phill

> On 13 Feb 2019, at 12:16 pm, Gene Heskett  wrote:
> 
> On Tuesday 12 February 2019 17:08:58 andy pugh wrote:
> 
>> On Tue, 12 Feb 2019 at 21:48, Gene Heskett  
> wrote:
>>> So it appears
>>> 
>>> I'll have to saw off a bit of brass, find my teeny brass tubing
>>> supply and hope I have enough to make another. Unfortunately, the
>>> hobby shop where I bought it closed up 5 years back from old age, so
>>> now I am at ebay's time sinking mercy at getting some more.
>> 
>> It might make more sense, if buying  from ebay, to get a ready-made
>> mister nozzle:
>> 
>> https://www.ebay.com/sch/i.html?_nkw=mist+cnc
> 
> So I've bought one with dual nozzles, for about $14, but none of the 
> search terms I've used has come up with a suitable coolant tank to use 
> with it. What has stuck up a hand to wave at me is $250 and up.  It 
> seems to me that a filter canister suitable for up to 40 psi, holding a 
> quart of coolant ought to be $75 or less.
> 
> Thanks everybody
> 
> 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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Tuesday 12 February 2019 17:08:58 andy pugh wrote:

> On Tue, 12 Feb 2019 at 21:48, Gene Heskett  
wrote:
> > So it appears
> >
> > I'll have to saw off a bit of brass, find my teeny brass tubing
> > supply and hope I have enough to make another. Unfortunately, the
> > hobby shop where I bought it closed up 5 years back from old age, so
> > now I am at ebay's time sinking mercy at getting some more.
>
> It might make more sense, if buying  from ebay, to get a ready-made
> mister nozzle:
>
> https://www.ebay.com/sch/i.html?_nkw=mist+cnc

So I've bought one with dual nozzles, for about $14, but none of the 
search terms I've used has come up with a suitable coolant tank to use 
with it. What has stuck up a hand to wave at me is $250 and up.  It 
seems to me that a filter canister suitable for up to 40 psi, holding a 
quart of coolant ought to be $75 or less.

Thanks everybody

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] Would this blower be usefull as a low pressure mister for this 6040?

[Chris Albertson]

What you are making is very much like an artist's air brush, the kind used
for very small and detailed work.   The amount of air thy use is tiny.
Some are controlled with a foot switch and others with a mechanical button
on the "brush"

The amount of air used is so tiny you can just let the air run and your big
compressor would cycle every 30 minutes.So you might control the
coolant flow, not the air and use a much cheaper valve

Actually one project I've been wanting to make is a computer controlled
valve.  In theory that are very simple but in practice they requires some
very accurate work on a lathe.  Drill two parallel holes in your favorite
kind of metal.  both dead end.  call one input and one output.   No air
flows because you still need to drill (and ream and lap) a 3rd hole that
intersects and connects the first 2. Drill that hole.   Then place some
drill rod in the hole.  There are better designs that involve machining the
rod so the forces are in balance then you only need a tiny force to move
the rod.

On Tue, Feb 12, 2019 at 11:16 AM Gene Heskett  wrote:

> On Tuesday 12 February 2019 12:45:22 Les Newell wrote:
>
> > You'd probably be better off with something like this:
> >  >SI-Max-Pressure-Portable-Lightweight/283371934304>
> >
> > Les
> >
> I've thought of that too Les,  since I have a 125lb 8 gallon version of
> that noisy thing under the workbench about 8 or 9 feet of hose away, and
> pressure regulating stuffs too. But I don't have a solenoid valve to
> shut it off. Lemme see if I can find a valve on fleabay. Yup, $16 for a
> 1/4" air horn valve rated at 200 psi, with a 12 volt coil. Fittings?
> Wait & see. Probably more current than a 7i76 can handle, but I've a
> drawer full of 12 volt power relays, 4pdt. And psu's up to 5 amps.
> Should be able to cobble something up for the longer haul. The question
> then is how long can it stand to be activated before the coil burns up.
> Air horns aren't exactly 100% duty cycle. Might have to setup a instant
> slam it open, and a resistively limited holding current.  We'll see.
> Thanks Les for the elbow in the ribs, sometimes I need that nudge in a
> different direction. Or I've an empty 20 lb freon tank, for about a 10%
> on time. Using it to smooth the surges, That would cool the coil.
>
> Lots of ways to skin this cat. :-)
>
> > On 12/02/2019 09:50, Gene Heskett wrote:
> > > Greetings all;
> > >
> > > I took a small air pump out of a failed solder rework unit last
> > > afternoon, find it to be some sort of a vibrator tuned to 60 hz,
> > > with a small diaphram on both sides of the solenoid.  So this
> > > doesn't seem like enough air to drive a mister.
> > >
> > > Looking at fleabay, I find, for about $12, what looks like a
> > > centrifigal 12 volt blower, rated at 380L a minute for blowing up
> > > air mattresses etc.  Rated pressure is 3800pa, but that doesn't
> > > readily translate into how much or how well it would blow, and make
> > > a mist for cooling a 4mm tool for working alu sheet? Like:
> > >
> > >  > >ator-Nozzles-Car-110V-AC-12V-DC-SM/292708939526?hash=item4426cff706:g
> > >:UMgAAOSwq4dbiLuc:rk:37:pf:0>
> > >
> > > Would it move enough air to run a mister?
> > >
> > > I get the impression its a relatively short operating life, so one
> > > should buy 2 of them to have a spare...
> > >
> > > Or should I be looking at the air brush stuffs in the $50 range?
> > > Like:
> > >
> > >  > >-Set-Air-Compressor-Kit-for-Art-X8G1/123329956995?hash=item1cb709cc83
> > >&enc=AQADAAADAFjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVOXpjqQen
> > >9rLDcD5TvbQttKkdSD%2BSsAxk0yuccLjjF%2BRz9pDLWoozX8ncpjPQuyNb7XZfPGHT%
> > >2BHvk1sXmvoGgcfLMHWUH5%2BV5JV3xr4QkdEaHhbfow6NWXTbC7hhCEPKZ307jBsUJ7a
> > >3aclRgfNpUIkgaClk%2Bvi9oRc1BjI9ZpWnjNx2mhm6fKL6ofR20Z03ylcA2DZoYucsJ7
> > >1zglgKiPnRhcBydyEouoH%2BDyRpU%2BuPqinq8t6By5arBXLrRNNMSrG4Vw%2B0Kv40X
> > >37DGRv%2BRzFrjOln6T8UAxFIeg%2BCj0F2XcUqmv94mOIOdLbcdYT32Frf%2FDjlLmRb
> > >%2Bclw24TrmALp5MwQm%2FEwkzojcoz6Ln%2FYzQz%2BAN%2FWeFOZpoAaOikEh7eCdAl
> > >4skAoEs2R4iSJNIZu4Af6sVgDfoY%2B7xEWEGOJ2PSU3KqodU3hMFXUUzn6cxvMyVLVbR
> > >Bmk%2FmKcS4IYlmE5vWpAxeNQfRxt1kBvdIyfMtVh8vviZXQInHEkbq83%2BXeeFtyi1I
> > >gY3YpuWg%2FBRhQM%2FOfTKI%2BdthTTZAOSWg1N0NSQlg2I7ZZKfLKXbOBZR0R79sH6n
> > >gXfHPBIZ1%2BKV%2FvLwXqASPZRYqK21HHlaZU7ZEUAMXLUay516TGxumD1sZaWX0qgwv
> > >K6MqqYjM3%2BmWGOD%2B1daZ5uGy%2FyfNx4RuSPRsmSdY1D3sMX1GTnYf3ilPQoV3%2F
> > >RofK0T2KR9tnqQw6qpiVC0f
> >
> >  PPYjqpPYlp
> >
> > >
> > > BvZYhRwsoub%2BjjuSvSpoe0mipxXT5JrHYIInmu%2Bu4T3UDKpwrtTPbNjn8CyHh7uh
> > >5xs%2FS6sp9TW9%2FwE47Nw02qQZ6LBKybtyy9pkqY5EN5rLiH3lk4ZR6uM5IHM%2BlTt
> > >QPWG0bvLOnrrfzurlXoUYbAzfwBUT6HhSjKcrDNbCqCepe8U25TBYGlAv%2FN4xCaHRyt
> > >Rl7QkQUBgZor4Qgt6ktu8AYPDlqM5Z8XwLGmSI1hS3rg%3D%3D&checksum=123329956
> > >995a186a265037243a594

Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040

[andy pugh]

On Tue, 12 Feb 2019 at 21:48, Gene Heskett  wrote:

> So it appears

> I'll have to saw off a bit of brass, find my teeny brass tubing supply
> and hope I have enough to make another. Unfortunately, the hobby shop
> where I bought it closed up 5 years back from old age, so now I am at
> ebay's time sinking mercy at getting some more.


It might make more sense, if buying  from ebay, to get a ready-made mister
nozzle:

https://www.ebay.com/sch/i.html?_nkw=mist+cnc

-- 
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] Would this blower be usefull as a low pressure mister for this 6040

[Gene Heskett]

On Tuesday 12 February 2019 14:51:11 Marshland Engineering wrote:

> Run several misters and you need around 25 PSI to draw the cutting
> fluid, mist the liquid and blow away the swarf.
>
> I don't like my big compressor working hard to produce 25 PSI so I'm
> busy setting up a small 3 phase motor to run and oilless pump with a
> small VFD. This way I can set the speed of the motor to give me the
> pressure I want and it only comes on when the spindle starts.  I do a
> lot of aly and I'm tired of the coolant splashing everywhere. PS
> remember that the mister will in time leave the machine covered in
> oil. It too has its drawbacks.
>
> Cheers Wallace.
>
Which, if the oil is safflower oil and you don't clean it up for years, 
will eventually set almost as hard as a rock. But it sure works great on 
alu. That machine is now dead, but I went out to get that mister today 
to see if I could cobble up a mount on the 6040, and found the atomizer 
piece missing. All that was left was the little bitty filter I'd used as 
an oil container & some of the hoses. Holds about 3 oz. So it appears 
I'll have to saw off a bit of brass, find my teeny brass tubing supply 
and hope I have enough to make another. Unfortunately, the hobby shop 
where I bought it closed up 5 years back from old age, so now I am at 
ebay's time sinking mercy at getting some more. The only place I might 
have moved it to would be one of the Sheldons tool drawers, thinking I 
might have had thoughts of using it there.

But I also need a smaller one with a more bendable mount. And a delivery 
nozzle I didn't make for the first one 17 years ago. In the meantime, 
I've inserted about 10 hours worth of cooling delays in the panel code 5 
minutes at a time, bringing a 12 minute job to 11+ hours, and if worse 
comes to worse I'll set a fan on it, and let it stop for cooling. But if 
I do that, I've got to rig a relay to shut the spindle down during the 
cooldown period as the bearings will fail fast enough. I'll cut into the 
speed pot circuit, and open the cw end of the manual pot to stop it. 
Pain in the butt, but this vfd is one of those anyway... :( But I need 
to make up what little mind I have left and just git-r-done. Legs and 
feet are about used up for today though. And nearly time to put on my 
chefs hat too.

All advice considered, thanks Wallace. I used safflower oil the last time 
because it has the highest flash point, but I think this time I should 
use a water mixed emulsion as it would cool this thin stuff better. 
Suggestions for your favorite dragon drool are? 

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] Would this blower be usefull as a low pressure mister for this 6040?

[Gene Heskett]

On Tuesday 12 February 2019 12:45:22 Les Newell wrote:

> You'd probably be better off with something like this:
> SI-Max-Pressure-Portable-Lightweight/283371934304>
>
> Les
>
I've thought of that too Les,  since I have a 125lb 8 gallon version of 
that noisy thing under the workbench about 8 or 9 feet of hose away, and 
pressure regulating stuffs too. But I don't have a solenoid valve to 
shut it off. Lemme see if I can find a valve on fleabay. Yup, $16 for a 
1/4" air horn valve rated at 200 psi, with a 12 volt coil. Fittings? 
Wait & see. Probably more current than a 7i76 can handle, but I've a 
drawer full of 12 volt power relays, 4pdt. And psu's up to 5 amps. 
Should be able to cobble something up for the longer haul. The question 
then is how long can it stand to be activated before the coil burns up. 
Air horns aren't exactly 100% duty cycle. Might have to setup a instant 
slam it open, and a resistively limited holding current.  We'll see.
Thanks Les for the elbow in the ribs, sometimes I need that nudge in a 
different direction. Or I've an empty 20 lb freon tank, for about a 10% 
on time. Using it to smooth the surges, That would cool the coil.

Lots of ways to skin this cat. :-)

> On 12/02/2019 09:50, Gene Heskett wrote:
> > Greetings all;
> >
> > I took a small air pump out of a failed solder rework unit last
> > afternoon, find it to be some sort of a vibrator tuned to 60 hz,
> > with a small diaphram on both sides of the solenoid.  So this
> > doesn't seem like enough air to drive a mister.
> >
> > Looking at fleabay, I find, for about $12, what looks like a
> > centrifigal 12 volt blower, rated at 380L a minute for blowing up
> > air mattresses etc.  Rated pressure is 3800pa, but that doesn't
> > readily translate into how much or how well it would blow, and make
> > a mist for cooling a 4mm tool for working alu sheet? Like:
> >
> >  >ator-Nozzles-Car-110V-AC-12V-DC-SM/292708939526?hash=item4426cff706:g
> >:UMgAAOSwq4dbiLuc:rk:37:pf:0>
> >
> > Would it move enough air to run a mister?
> >
> > I get the impression its a relatively short operating life, so one
> > should buy 2 of them to have a spare...
> >
> > Or should I be looking at the air brush stuffs in the $50 range?
> > Like:
> >
> >  >-Set-Air-Compressor-Kit-for-Art-X8G1/123329956995?hash=item1cb709cc83
> >&enc=AQADAAADAFjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVOXpjqQen
> >9rLDcD5TvbQttKkdSD%2BSsAxk0yuccLjjF%2BRz9pDLWoozX8ncpjPQuyNb7XZfPGHT%
> >2BHvk1sXmvoGgcfLMHWUH5%2BV5JV3xr4QkdEaHhbfow6NWXTbC7hhCEPKZ307jBsUJ7a
> >3aclRgfNpUIkgaClk%2Bvi9oRc1BjI9ZpWnjNx2mhm6fKL6ofR20Z03ylcA2DZoYucsJ7
> >1zglgKiPnRhcBydyEouoH%2BDyRpU%2BuPqinq8t6By5arBXLrRNNMSrG4Vw%2B0Kv40X
> >37DGRv%2BRzFrjOln6T8UAxFIeg%2BCj0F2XcUqmv94mOIOdLbcdYT32Frf%2FDjlLmRb
> >%2Bclw24TrmALp5MwQm%2FEwkzojcoz6Ln%2FYzQz%2BAN%2FWeFOZpoAaOikEh7eCdAl
> >4skAoEs2R4iSJNIZu4Af6sVgDfoY%2B7xEWEGOJ2PSU3KqodU3hMFXUUzn6cxvMyVLVbR
> >Bmk%2FmKcS4IYlmE5vWpAxeNQfRxt1kBvdIyfMtVh8vviZXQInHEkbq83%2BXeeFtyi1I
> >gY3YpuWg%2FBRhQM%2FOfTKI%2BdthTTZAOSWg1N0NSQlg2I7ZZKfLKXbOBZR0R79sH6n
> >gXfHPBIZ1%2BKV%2FvLwXqASPZRYqK21HHlaZU7ZEUAMXLUay516TGxumD1sZaWX0qgwv
> >K6MqqYjM3%2BmWGOD%2B1daZ5uGy%2FyfNx4RuSPRsmSdY1D3sMX1GTnYf3ilPQoV3%2F
> >RofK0T2KR9tnqQw6qpiVC0f
>
>  PPYjqpPYlp
>
> >  
> > BvZYhRwsoub%2BjjuSvSpoe0mipxXT5JrHYIInmu%2Bu4T3UDKpwrtTPbNjn8CyHh7uh
> >5xs%2FS6sp9TW9%2FwE47Nw02qQZ6LBKybtyy9pkqY5EN5rLiH3lk4ZR6uM5IHM%2BlTt
> >QPWG0bvLOnrrfzurlXoUYbAzfwBUT6HhSjKcrDNbCqCepe8U25TBYGlAv%2FN4xCaHRyt
> >Rl7QkQUBgZor4Qgt6ktu8AYPDlqM5Z8XwLGmSI1hS3rg%3D%3D&checksum=123329956
> >995a186a265037243a594404d2410767ccf>
> >
> > Its obvious I'll need some sort of cooling.
> >
> > Cheers, Gene Heskett
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 



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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040?

[Chris Albertson]

Yes, those solder station use an air pumps are not unlike an aquarium air
pump.   Maybe that is enough, all you need is enough air to cary the mist
of atomized droplets.

Another place to look is "air brush" pumps.   These are designed to power
tiny paint guns and to run all day long.   They are usually design to by
very quiet. I have an rather high-end airbrush pump and I can see it is
actually a very small refrigerator pump fitted to a 1 gallon size tank.  It
is dead silent.Good 'fridge pumps will run "forever".

But I've surprised you don''t have a shop compressor.   A 1/4" line from
the big tank should work.  Maybe you need a regulator to bring it down.

My dad built a few misters using brass tube.  All you need is a "T" that
alto serves as a ventori   Make one with a small block of aluminum and
drill from three side and press fit the tube  The down pointing left sucks
liquid from a cup.   Put a small diameter drill hole just above the
vertical leg.You don't need much suction because you can use a plastic
line to go to the cup and raise the cup until it is nearly level with the
"Tee". A couple inches of "lift" it enough

Lacking an airbrush compressor, buy the smaller one from harbor freight.

On Tue, Feb 12, 2019 at 1:52 AM Gene Heskett  wrote:

> Greetings all;
>
> I took a small air pump out of a failed solder rework unit last
> afternoon, find it to be some sort of a vibrator tuned to 60 hz, with a
> small diaphram on both sides of the solenoid.  So this doesn't seem like
> enough air to drive a mister.
>
> Looking at fleabay, I find, for about $12, what looks like a centrifigal
> 12 volt blower, rated at 380L a minute for blowing up air mattresses
> etc.  Rated pressure is 3800pa, but that doesn't readily translate into
> how much or how well it would blow, and make a mist for cooling a 4mm
> tool for working alu sheet? Like:
>
> <
> https://www.ebay.com/itm/Air-Compressor-Portable-Electric-Pump-Inflator-Nozzles-Car-110V-AC-12V-DC-SM/292708939526?hash=item4426cff706:g:UMgAAOSwq4dbiLuc:rk:37:pf:0
> >
>
> Would it move enough air to run a mister?
>
> I get the impression its a relatively short operating life, so one should
> buy 2 of them to have a spare...
>
> Or should I be looking at the air brush stuffs in the $50 range? Like:
>
> <
> https://www.ebay.com/itm/Portable-Airbrush-Set-Small-Spray-Pump-Pen-Set-Air-Compressor-Kit-for-Art-X8G1/123329956995?hash=item1cb709cc83&enc=AQADAAADAFjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVOXpjqQen9rLDcD5TvbQttKkdSD%2BSsAxk0yuccLjjF%2BRz9pDLWoozX8ncpjPQuyNb7XZfPGHT%2BHvk1sXmvoGgcfLMHWUH5%2BV5JV3xr4QkdEaHhbfow6NWXTbC7hhCEPKZ307jBsUJ7a3aclRgfNpUIkgaClk%2Bvi9oRc1BjI9ZpWnjNx2mhm6fKL6ofR20Z03ylcA2DZoYucsJ71zglgKiPnRhcBydyEouoH%2BDyRpU%2BuPqinq8t6By5arBXLrRNNMSrG4Vw%2B0Kv40X37DGRv%2BRzFrjOln6T8UAxFIeg%2BCj0F2XcUqmv94mOIOdLbcdYT32Frf%2FDjlLmRb%2Bclw24TrmALp5MwQm%2FEwkzojcoz6Ln%2FYzQz%2BAN%2FWeFOZpoAaOikEh7eCdAl4skAoEs2R4iSJNIZu4Af6sVgDfoY%2B7xEWEGOJ2PSU3KqodU3hMFXUUzn6cxvMyVLVbRBmk%2FmKcS4IYlmE5vWpAxeNQfRxt1kBvdIyfMtVh8vviZXQInHEkbq83%2BXeeFtyi1IgY3YpuWg%2FBRhQM%2FOfTKI%2BdthTTZAOSWg1N0NSQlg2I7ZZKfLKXbOBZR0R79sH6ngXfHPBIZ1%2BKV%2FvLwXqASPZRYqK21HHlaZU7ZEUAMXLUay516TGxumD1sZaWX0qgwvK6MqqYjM3%2BmWGOD%2B1daZ5uGy%2FyfNx4RuSPRsmSdY1D3sMX1GTnYf3ilPQoV3%2FRofK0T2KR9tnqQw6qpiVC0fPPYjqpPYlpBvZYhRwsoub%2BjjuSvSpoe0mipxXT5JrHYIInmu%2Bu4T3UDKpwrtTPbNjn8CyHh7uh5xs%2FS6sp9TW9%2FwE47Nw02qQZ6LBKybtyy9pkqY5EN5rLiH3lk4ZR6uM5IHM%2BlTtQPWG0bvLOnrrfzurlXoUYbAzfwBUT6HhSjKcrDNbCqCepe8U25TBYGlAv%2FN4xCaHRytRl7QkQUBgZor4Qgt6ktu8AYPDlqM5Z8XwLGmSI1hS3rg%3D%3D&checksum=123329956995a186a265037243a594404d2410767ccf
> >
>
> Its obvious I'll need some sort of cooling.
>
> 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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-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040?

[Gene Heskett]

On Tuesday 12 February 2019 06:06:31 Erik Christiansen wrote:

> On 12.02.19 04:50, Gene Heskett wrote:
> > Looking at fleabay, I find, for about $12, what looks like a
> > centrifigal 12 volt blower, rated at 380L a minute for blowing up
> > air mattresses etc.  Rated pressure is 3800pa, but that doesn't
> > readily translate into how much or how well it would blow,
>
> $ units
> You have: 3800 Pa
> You want: psi
> * 0.5511434
>
> Ya, well, 380 L/min is FAD, and 0 L/min is 0.55 PSI, according to the
> above. It'd lift air mattress fabric off the floor, but that's about
> it, I figure.
>
> > and make a mist for cooling a 4mm tool for working alu sheet? Like:
> >
> >  >ator-Nozzles-Car-110V-AC-12V-DC-SM/292708939526?hash=item4426cff706:g
> >:UMgAAOSwq4dbiLuc:rk:37:pf:0>
> >
> > Would it move enough air to run a mister?
>
> It's definitely HVLP, and you need less volume and more pressure to
> mist the liquid, I figure.
>
> > I get the impression its a relatively short operating life, so one
> > should buy 2 of them to have a spare...
> >
> > Or should I be looking at the air brush stuffs in the $50 range?
> > Like:
> >
> > [Link elided]
>
> Well if one of "working pressure 15 - 50 PSI" and "Max pressure 25
> PSI" are true, then it's about 50 times better than the other.

My thoughts are along that same line.

> Dunno 
> how it'd handle one of your 6 hour convoluted gcode runs, though.

Squeezing air generates heat. So how well does if self cool will answer 
that question. Assuming 15 psi, and the next run to make another panel, 
this time for its own use, 10 to 20 minutes to make 10 holes and 2 dsub 
cutouts. Properties says about 13 minutes.  Ad I'd turn it on and off 
with the spindle enable signal, but with a delay in the off mode in case 
I see I have to put a tool cooling delay in after each hole. With a 5 
minute cool down after each hole, that would add about 2 hours to that 
run time. Another detail of note is that as the panel heats from the 
cutting, it buckles upward in the middle a wee bit, so I need to raise 
the #<_zup> at least .1" to keep the tool clear when its supposed to be. 
I thought 40 thou was enough, but it wasn't.

And I'd ordered a 6" rotron fan I can rig to blow on the panel, which 
combined with the time delay between cuts, might be enough to get this 
job done a lot cleaner than the first pass was.
>
> Erik
> (Who's starting to look at 5 or 4 kW off-grid hybrid inverters and 48v
> 10 kWh battery options. Ya don't want the cheap ones, I hear.)
>
Good thinking Erik.

Weston WV is a very old town, and many of its original streets are horse 
and buggy width.  That means when REA came in, the power poles were 
planted about 3 inches from the face of the curbs. Said another way, 
passenger side mirrors on bigger vehicles like my 2011 Crew Cab F-150 
are in serious danger of wipeout on a power pole without the wheels ever 
touching the curb. So after 29 years and several damageless fold ups, I 
finally got one last night. So I went back today in the daylight and 
found all the pieces, and everything but the glass itself just snapped 
back together.  Heated glass, but I just found a new one on ebay for 
$29. Needless to say I clicked the blue button and it should be here in 
a week.

Just one slight disadvantage to living in a 200+ yo town. Its narrow 
streets. Weston's Bank (it has 3 now) was old when it figured in the 
civil war because both army's tried to rob it. But its told the Union 
troops beat the confederates and took it first. Way before my arrival in 
late 1984. Winners always get to write the history books. And in the 
longer view, its said everybody was made well.

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] Would this blower be usefull as a low pressure mister for this 6040?

[Les Newell]

You'd probably be better off with something like this:


Les


On 12/02/2019 09:50, Gene Heskett wrote:

Greetings all;

I took a small air pump out of a failed solder rework unit last
afternoon, find it to be some sort of a vibrator tuned to 60 hz, with a
small diaphram on both sides of the solenoid.  So this doesn't seem like
enough air to drive a mister.

Looking at fleabay, I find, for about $12, what looks like a centrifigal
12 volt blower, rated at 380L a minute for blowing up air mattresses
etc.  Rated pressure is 3800pa, but that doesn't readily translate into
how much or how well it would blow, and make a mist for cooling a 4mm
tool for working alu sheet? Like:



Would it move enough air to run a mister?

I get the impression its a relatively short operating life, so one should
buy 2 of them to have a spare...

Or should I be looking at the air brush stuffs in the $50 range? Like:



Its obvious I'll need some sort of cooling.

Cheers, Gene Heskett






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Re: [Emc-users] Would this blower be usefull as a low pressure mister for this 6040?

[Erik Christiansen]

On 12.02.19 04:50, Gene Heskett wrote:
> Looking at fleabay, I find, for about $12, what looks like a centrifigal 
> 12 volt blower, rated at 380L a minute for blowing up air mattresses 
> etc.  Rated pressure is 3800pa, but that doesn't readily translate into 
> how much or how well it would blow,

$ units
You have: 3800 Pa
You want: psi
* 0.5511434

Ya, well, 380 L/min is FAD, and 0 L/min is 0.55 PSI, according to the above.
It'd lift air mattress fabric off the floor, but that's about it, I figure.

> and make a mist for cooling a 4mm tool for working alu sheet? Like:
> 
> 
> 
> Would it move enough air to run a mister?

It's definitely HVLP, and you need less volume and more pressure to mist
the liquid, I figure.

> I get the impression its a relatively short operating life, so one should 
> buy 2 of them to have a spare...
> 
> Or should I be looking at the air brush stuffs in the $50 range? Like:
> 
> [Link elided]

Well if one of "working pressure 15 - 50 PSI" and "Max pressure 25 PSI"
are true, then it's about 50 times better than the other. Dunno how it'd
handle one of your 6 hour convoluted gcode runs, though.

Erik
(Who's starting to look at 5 or 4 kW off-grid hybrid inverters and 48v
10 kWh battery options. Ya don't want the cheap ones, I hear.)


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