I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

On 2009-01-29, Stupendous Man wrote:
I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?

You were breathing misting coolant vapor, not clear water, right?

--
Due to extreme spam originating from Google Groups, and their inattention
to spammers, I and many others block all articles originating
from Google Groups. If you want your postings to be seen by
more readers you will need to find a different means of
posting on Usenet.
http://improve-usenet.org/

You were breathing misting coolant vapor, not clear water, right?

It's about 5% Kool mist, butyl acetate, listed and being non-hazardous. I
think i will wear a mask next week.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Stupendous Man wrote:
I have been doing quite a bit of lathe work using a kool-mist this week
and due to cold weather have the shop closed up. I came down with a flu
or something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor
could make it easier to get sick?

I just saw an article on the subject, but can't
find it now. The gist was that there seemed to
be more asthma-like symptoms and complaints where
it was used. The problems were thought to be tramp
oil and mist out of ph specification rather than
uncontaminated fresh mist.

On Jan 29, 3:23*pm, Jim Stewart wrote:
Stupendous Man wrote:
I have been doing quite a bit of lathe work using a kool-mist this week
and due to cold weather have the shop closed up. I came down with a flu
or something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor
could make it easier to get sick?

I just saw an article on the subject, but can't
find it now. *The gist was that there seemed to
be more asthma-like symptoms and complaints where
it was used. *The problems were thought to be tramp
oil and mist out of ph specification rather than
uncontaminated fresh mist.

The one time I used it I got sick. The oil in it seemed to coat
my lungs and make trouble. I'll never use misted coolants again.

Dan

In article
,
wrote:

On Jan 29, 3:23*pm, Jim Stewart wrote:
Stupendous Man wrote:
I have been doing quite a bit of lathe work using a kool-mist this week
and due to cold weather have the shop closed up. I came down with a flu
or something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor
could make it easier to get sick?

I just saw an article on the subject, but can't
find it now. *The gist was that there seemed to
be more asthma-like symptoms and complaints where
it was used. *The problems were thought to be tramp
oil and mist out of ph specification rather than
uncontaminated fresh mist.

The one time I used it I got sick. The oil in it seemed to coat
my lungs and make trouble. I'll never use misted coolants again.

This happened to me as well. Once. I got a half-mask respirator, and a
better sprayer. Now I get more coolant on target and less in the air,
and the respirator handles what does get in the air.

Joe Gwinn

"Stupendous Man" wrote in message
...
I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty


That's the down side of mist coolers. Lots of liquid dust.

On Jan 29, 1:52*pm, "Stupendous Man" wrote:
I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

http://www.aerias.org/DesktopModules...x?articleId=99

"Stupendous Man" wrote in message
...
I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty


I won't breathe that stuff anymore, it makes me sick. I wonder if I could
fill the thing with Vodka?

"Buerste" wrote in message
...

"Stupendous Man" wrote in message
...
I have been doing quite a bit of lathe work using a kool-mist this week
and due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty


I won't breathe that stuff anymore, it makes me sick. I wonder if I could
fill the thing with Vodka?

You could fill it with peanut oil, like they do at Volkswagen, but I don't
know how they treat it. But don't take this seriously. They must have a
sophisticated atomizer of some kind, and the Kook-Mist rig probably won't
handle the viscosity. It sure works great for VW, however.

There were several epidemiological studies, mostly done in Europe, that
showed all kinds of problems resulting from mist coolant. However, I doubt
if they tried the Kool-Mist formulas, which are supposed to be benign.

Benign, schemign, I'm not breathing no steenking atomized chemicals. I have
no idea how they're getting away with it, because the active chemical (butyl
acetate?) is identified as a hazard to eyes and lungs when you look at the
chemical itself.

It could be that there is no evidence that such a dilute solution is a
hazard. Still, it's not for me.

--
Ed Huntress

"Ed Huntress" wrote in message
...

"Buerste" wrote in message
...

"Stupendous Man" wrote in message
...
I have been doing quite a bit of lathe work using a kool-mist this week
and due to cold weather have the shop closed up. I came down with a flu
or something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor
could make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty


I won't breathe that stuff anymore, it makes me sick. I wonder if I
could fill the thing with Vodka?

You could fill it with peanut oil, like they do at Volkswagen, but I don't
know how they treat it. But don't take this seriously. They must have a
sophisticated atomizer of some kind, and the Kook-Mist rig...

That was not intentional. g I meant Kool-Mist.

--
Ed Huntress

"Ed Huntress" wrote in message
...
snip----
You could fill it with peanut oil, like they do at Volkswagen, but I don't
know how they treat it. But don't take this seriously. They must have a
sophisticated atomizer of some kind, and the Kook-Mist rig probably won't
handle the viscosity. It sure works great for VW, however.

Boelube works that way, although you must use a Boelube device. Works great,
and is especially good on difficult to machine materials.


There were several epidemiological studies, mostly done in Europe, that
showed all kinds of problems resulting from mist coolant. However, I doubt
if they tried the Kool-Mist formulas, which are supposed to be benign.


I can't imagine any vapor being good for one's lungs---aside from water.
Too much of that can be a bad thing, too.

Harold

"Harold and Susan Vordos" wrote in message
. ..

"Ed Huntress" wrote in message
...
snip----
You could fill it with peanut oil, like they do at Volkswagen, but I
don't know how they treat it. But don't take this seriously. They must
have a sophisticated atomizer of some kind, and the Kook-Mist rig
probably won't handle the viscosity. It sure works great for VW, however.

Boelube works that way, although you must use a Boelube device. Works
great, and is especially good on difficult to machine materials.

I don't know that one, but I haven't followed it for 5 years or so. VW's
machining economics are somewhat different than ours -- coolant disposal in
Europe costs several times more than it does here, for example -- and
they're subject to stricter health standards. But they said they were
getting good tool life and that the economics strongly favored the
peanut-oil mist.

They use an *extremely* lean spray: around 125 ml (roughly 1/2 cup) of oil
per machine, per shift.



There were several epidemiological studies, mostly done in Europe, that
showed all kinds of problems resulting from mist coolant. However, I
doubt if they tried the Kool-Mist formulas, which are supposed to be
benign.


I can't imagine any vapor being good for one's lungs---aside from water.
Too much of that can be a bad thing, too.

Same here.

--
Ed Huntress

"Ed Huntress" wrote in message
...

"Harold and Susan Vordos" wrote in message
. ..

"Ed Huntress" wrote in message
...
snip----
You could fill it with peanut oil, like they do at Volkswagen, but I
don't know how they treat it. But don't take this seriously. They must
have a sophisticated atomizer of some kind, and the Kook-Mist rig
probably won't handle the viscosity. It sure works great for VW,
however.

Boelube works that way, although you must use a Boelube device. Works
great, and is especially good on difficult to machine materials.

I don't know that one, but I haven't followed it for 5 years or so. VW's
machining economics are somewhat different than ours -- coolant disposal
in Europe costs several times more than it does here, for example -- and
they're subject to stricter health standards. But they said they were
getting good tool life and that the economics strongly favored the
peanut-oil mist.


It's not new. I purchased the setup way back---about 1990. It's not
cheap! $90/gallon, and it is used straight from the container. Wouldn't be
the least bit surprised if it was made from peanut oil. Needless to say,
that's not mentioned.

They use an *extremely* lean spray: around 125 ml (roughly 1/2 cup) of oil
per machine, per shift.

I don't recall the consumption now, but it was low as well. I purchased the
stuff when I was building a gasketed filter press for my refining service.
Bought a sheet of unknown stainless, from which I made the retaining washers
for the filter media. I had to trepan the discs from the sheet material,
which was about .150" thick. I used a boring head with a hand ground tool,
but had no luck, breaking the tool several times. I realized I was having
a lubrication problem using sulfur based oil, so I investigated and found
Boelube. Solved the riddle perfectly.

I used a vacuum cleaner (discharged out of doors, with no filter to clog)
to pick up the vapors. I don't like breathing any of that stuff.

Ever run a centerless grinder?

You have no clue about mist until you've been around one.

Harold

On Jan 29, 10:17*pm, "Buerste" wrote:
"Stupendous Man" wrote in message

...

I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

I won't breathe that stuff anymore, it makes me sick. *I wonder if I could
fill the thing with Vodka?

http://ask.metafilter.com/95484/At-w...l-spirits-burn

When used as directed by the manufacturer, its a safe product.
However, using one without properly cleaning and disinfecting it on a
regular basis could contribute to additional breathing problems for
people who have asthma, severe allergies and other respiratory
difficulties.

AsianDoll

Since its my school semester break I have been using my free time
playing games like a href=http://www.gamestotal.com http://www.gamestotal.com
/a a href=http://uc.gamestotal.com http://uc.gamestotal.com /a
a href=http://gc.gamestotal.com http://gc.gamestotal.com /a a
href=http://3700ad.gamestotal.com http://3700ad.gamestotal.com /a
a href=http://manga.gamestotal.com http://manga.gamestotal.com /a

I'd be concerned about being in the vicinity of any airborne liquid
droplets, and I'm a bit surprised that this has been a standard method for
machining. The concept just seems like it would be an obvious health hazard
when things like plumbing and electronics manufcturing are going to
lead-free processes, mainly out of rampant paranoia, IMO.

I haven't used a coolant or a cutting lubricant system on any of my hobby
metalworking machines, but a mist system would probably have to be my last
consideration.
Misting seems like a great idea for a greenhouse though, if people aren't
occupying the same space.

Since misting has been discussed here several times recently, I've been
wondering if an evacuation system could be utilized to minimize risk to the
folks that use mist, kind of like the removal of dust in a woodworking shop
is commonly done.

One probably wouldn't want to listen to a shop-vac whine while they're
concentrating on work and safety, or get involved in a expensive collection
system, but an almost silent squirrel cage blower intake may be sufficient
to pull the stray mist into a containment system/vessel.
The relatively high velocity air flow of a shop-vac probably wouldn't be
required anyway.

The mist will very likely condense or accumulate upon contact with a cool
surface, so trying to lift it upward could result in a messy drooling pickup
inlet.

Evacuation of mist to the outdoors would also be evacuating heated shop air,
so it becomes an issue of throwing away energy costs while heating a shop
for personal comfort.

I suppose some sort of indoor containment system could be safely utilized
with lower energy cost waste. I almost hate the over-use of the term HEPA,
kinda like the abuse of the term mil-spec, but I wouldn't think that a
sophisticated refrigeration unit with specialized high dollar filters would
be required for capture or containment of mist for a home shop machine (or 2
or 3).

Something more along the lines of passing the airflow thru a couple of
layers of screens at a low angle may be capable of capturing most of the
mist which could drop into a bucket maybe. At most, I speculate that a small
system might include a power supply and some Peltier coolers on a plate to
get the mist to drop out of the air stream.

When examining a water/oil separator for a compressed air system, the swirl
created by fins causes moisture to contact the sides of the container where
it naturally drops to the bottom of the bowl/cannister, then sits there
until it's drained by means of opening a petcock.

The water/oil separators work very well and are especially effective for
their intended/normal applications. I don't think it would take a
supergenius like the doofus that promotes the Dyson? vacuum cleaner to
invent a really cool-looking vortex or cyclone separator for a little mist.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


"Stupendous Man" wrote in message
...
I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Since misting has been discussed here several times recently, I've been
wondering if an evacuation system could be utilized to minimize risk to
the folks that use mist, kind of like the removal of dust in a woodworking
shop is commonly done.

I have a system set up using a 6 inch muffin fan from a computer and some
motorhome sewer tubing that gets a large percentage of the smoke when i am
using soluable oil with water, but the mist is way too much volume for it to
get. I am going to have to do something, the windows only open to 1x2 feet,
and a fan doesn't fit well.
I guess I would be better off wearing more clothing , the woodstove blazing,
and all windows open, but its been around 25 degrees in the morning around
here. No palms in this part of California.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

The squirrel cage/centrifugal blowers are much more effective when trying to
direct air flow thru/along lengths of ducting or tubing. The forced air
furnace type blower (but a smaller version), will push or pull air very
effectively, as demonstrated when used with duct work associated with forced
air heating or cooling systems.

Fans work well enough when they need to move air from one side of a panel to
the other, but perform poorly when used with ducts.
I believe any duct with wavy or irregular walls would be especially bad when
utilizing an ordinary fan for air flow. There are specially designed
industrial axial fans that do a good job of moving air thru ducts, but the
typical computer/appliance fans deliver poor performance.

The weather might not be so great now, but soon your environment will
improve drastically. I've been as far north as San Francisco in September,
and it seemed to get really cold at night, but that was mainly because I
spent the previous couple of months in the LA area.
Here in western PA we're having some nasty, old fashioned winter weather.
The low temps were in the -7 to -5 F range for about a week straight and I
don't think the highs were even as much as 25 F.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


"Stupendous Man" wrote in message
...
Since misting has been discussed here several times recently, I've been
wondering if an evacuation system could be utilized to minimize risk to
the folks that use mist, kind of like the removal of dust in a
woodworking shop is commonly done.

I have a system set up using a 6 inch muffin fan from a computer and some
motorhome sewer tubing that gets a large percentage of the smoke when i am
using soluable oil with water, but the mist is way too much volume for it
to get. I am going to have to do something, the windows only open to 1x2
feet, and a fan doesn't fit well.
I guess I would be better off wearing more clothing , the woodstove
blazing, and all windows open, but its been around 25 degrees in the
morning around here. No palms in this part of California.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

"Wild_Bill" wrote in message
...
I'd be concerned about being in the vicinity of any airborne liquid
droplets, and I'm a bit surprised that this has been a standard method for
machining. The concept just seems like it would be an obvious health
hazard when things like plumbing and electronics manufcturing are going to
lead-free processes, mainly out of rampant paranoia, IMO.

I haven't used a coolant or a cutting lubricant system on any of my hobby
metalworking machines, but a mist system would probably have to be my last
consideration.
Misting seems like a great idea for a greenhouse though, if people aren't
occupying the same space.

Since misting has been discussed here several times recently, I've been
wondering if an evacuation system could be utilized to minimize risk to
the folks that use mist, kind of like the removal of dust in a woodworking
shop is commonly done.

One probably wouldn't want to listen to a shop-vac whine while they're
concentrating on work and safety, or get involved in a expensive
collection system, but an almost silent squirrel cage blower intake may be
sufficient to pull the stray mist into a containment system/vessel.
The relatively high velocity air flow of a shop-vac probably wouldn't be
required anyway.

The mist will very likely condense or accumulate upon contact with a cool
surface, so trying to lift it upward could result in a messy drooling
pickup inlet.

Evacuation of mist to the outdoors would also be evacuating heated shop
air, so it becomes an issue of throwing away energy costs while heating a
shop for personal comfort.

I suppose some sort of indoor containment system could be safely utilized
with lower energy cost waste. I almost hate the over-use of the term HEPA,
kinda like the abuse of the term mil-spec, but I wouldn't think that a
sophisticated refrigeration unit with specialized high dollar filters
would be required for capture or containment of mist for a home shop
machine (or 2 or 3).

Something more along the lines of passing the airflow thru a couple of
layers of screens at a low angle may be capable of capturing most of the
mist which could drop into a bucket maybe. At most, I speculate that a
small system might include a power supply and some Peltier coolers on a
plate to get the mist to drop out of the air stream.

When examining a water/oil separator for a compressed air system, the
swirl created by fins causes moisture to contact the sides of the
container where it naturally drops to the bottom of the bowl/cannister,
then sits there until it's drained by means of opening a petcock.

The water/oil separators work very well and are especially effective for
their intended/normal applications. I don't think it would take a
supergenius like the doofus that promotes the Dyson? vacuum cleaner to
invent a really cool-looking vortex or cyclone separator for a little
mist.

--
WB

One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed. In some cases (more in Europe
than here in the US) they're also fully ventilated. And the exhaust from
these systems is NOT ventilated to the outdoors. It generally goes to some
kind of central collection system.

--
Ed Huntress

In article ,
"Ed Huntress" wrote:

One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed.

Of course, with a fully enclosed (and CNC) tool, might as well use flood
coolant rather than a mist...

Still using a can of oil and a brush, given my unenclosed manual tools.
Might consider cooling with compressed air, if I get a better compressor.

--
Cats, coffee, chocolate...vices to live by

"Ecnerwal" wrote in message
...
In article ,
"Ed Huntress" wrote:

One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed.

Of course, with a fully enclosed (and CNC) tool, might as well use flood
coolant rather than a mist...

Not necessarily. Most of today's advanced cutters, with multiple coatings of
ceramic materials (titanium nitride, titanium carbide, titanium
carbo-nitride, aluminum oxide, etc., etc.) can't tolerate thermal shock. So
they're often run dry, at speeds that produce red-hot chips. Or, if
necessary, some can be run with mist coolant. The coatings with aluminum
oxide won't work properly unless the AlOx is hot enough to vaporize, so they
don't cool them at all.

But running flood coolant, particularly in milling operations, will crack
the coatings all to hell.


Still using a can of oil and a brush, given my unenclosed manual tools.
Might consider cooling with compressed air, if I get a better compressor.

You probably don't need cooling at all, unless you're running your tools at
maximum speeds. What you and I need is lubrication, not cooling.

--
Ed Huntress

On the subject, sort of....

I quit using RapidTap and such, for drilling or anyplace it would
"smoke", as it gave me a bad cough and a sore throat every time. Lotta
that stuff isn't as good for your health as it is for your sanity
(ease of work..no broken taps), etc.

On the subject of heat and carbide, it was pretty amazing at IMTS2008
to see Valenite (I think) and Hurco (I think) running a rough milling
technique called "Ram Cycle Milling" (I think).
Anyway, all my "I thinks" aside, on a 50 taper spindle they used about
a 3" diameter roughing mill by 2" depth of cut and literaly rammed it
into the work doing an edge cut (followed later in the demo by a
pocket cut), and would cut at high force and reasonable feed for only
about 1 or 2 seconds, back off for 1 second, and repeat. Scary to
watch, but nothing but the chips seemed to get hot.

Take care.

Brian Lawson,
Bothwell, Ontario.
XXXXXXXXXXXXXXXXXXXXXXX

On Fri, 30 Jan 2009 09:40:47 -0500, "Ed Huntress"
wrote:


"Ecnerwal" wrote in message
...
In article ,
"Ed Huntress" wrote:

One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed.

Of course, with a fully enclosed (and CNC) tool, might as well use flood
coolant rather than a mist...

Not necessarily. Most of today's advanced cutters, with multiple coatings of
ceramic materials (titanium nitride, titanium carbide, titanium
carbo-nitride, aluminum oxide, etc., etc.) can't tolerate thermal shock. So
they're often run dry, at speeds that produce red-hot chips. Or, if
necessary, some can be run with mist coolant. The coatings with aluminum
oxide won't work properly unless the AlOx is hot enough to vaporize, so they
don't cool them at all.

But running flood coolant, particularly in milling operations, will crack
the coatings all to hell.


Still using a can of oil and a brush, given my unenclosed manual tools.
Might consider cooling with compressed air, if I get a better compressor.

You probably don't need cooling at all, unless you're running your tools at
maximum speeds. What you and I need is lubrication, not cooling.

Yep, I was thinking of fully enclosed machines as about the only alternative
for a mist system while I was writing, and picturing the enclosed Haas
mini-mill that someone mentioned the other day.

I would very likely need a fire extinguisher before coolant with my
machines. I generally just dribble a bit of cutting lubricant out of a
plastic dispenser bottle while cutting metals.

I've managed to get some blue chips once in a while, but only maybe a
handful, certainly not wheelbarrows full.

Even if I were set up to do production-like quantities of a part
occasionally, I would very likely just rig up a gravity feed dribble
spout/tube to deliver cutting lube to the cutting tool.

I can easily suspect a couple of HSMs here actually looking for enema kits
at a Goodwill thrift shop.

--
WB
..........
metalworking projects
www.kwagmire.com/metal_proj.html


"Ed Huntress" wrote in message
...

"Wild_Bill" wrote in message
...
I'd be concerned about being in the vicinity of any airborne liquid
droplets, and I'm a bit surprised that this has been a standard method
for machining. The concept just seems like it would be an obvious health
hazard when things like plumbing and electronics manufcturing are going
to lead-free processes, mainly out of rampant paranoia, IMO.

I haven't used a coolant or a cutting lubricant system on any of my hobby
metalworking machines, but a mist system would probably have to be my
last consideration.
Misting seems like a great idea for a greenhouse though, if people aren't
occupying the same space.


One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed. In some cases (more in Europe
than here in the US) they're also fully ventilated. And the exhaust from
these systems is NOT ventilated to the outdoors. It generally goes to some
kind of central collection system.

--
Ed Huntress

"Wild_Bill" wrote in message
...
Yep, I was thinking of fully enclosed machines as about the only
alternative for a mist system while I was writing, and picturing the
enclosed Haas mini-mill that someone mentioned the other day.

I would very likely need a fire extinguisher before coolant with my
machines. I generally just dribble a bit of cutting lubricant out of a
plastic dispenser bottle while cutting metals.

I've managed to get some blue chips once in a while, but only maybe a
handful, certainly not wheelbarrows full.

Even if I were set up to do production-like quantities of a part
occasionally, I would very likely just rig up a gravity feed dribble
spout/tube to deliver cutting lube to the cutting tool.

I can easily suspect a couple of HSMs here actually looking for enema kits
at a Goodwill thrift shop.

--
WB

LOL! Yes, I'll bet you could rig up something from one of those. g

This whole subject needs a good venting here. Over the years I've seen an
endless stream of misconceptions about coolants and lubricants, and, of
course, we have a wide range of hobbyists and commercial shops represented
here, using many different types and vintages of machines. Most of us
hobbyists, running 60-year-old toolroom-type lathes and HSS tools, have no
business running coolant of any kind. We should be using cutting oils, not
soluble oils or synthetics. And, except for people using better production
machines of more recent vintage, few of us run carbide at its limits,
either, and have little or no need for coolants. Coolants come into play
when you're running close to the temperature tolerance of your tools, and
you're trying to extend tool life lost to heat softening. Lubricants reduce
tool loads, give better finishes, and extend edge sharpness lost to
abrasion. Water-soluble (miscable) coolants and synthetic solutions, with
few exceptions, are only mediocre lubricants. Most of us would be better off
with lard oil or mineral-based cutting oils.

Maybe we'll get around to it one of these days, and really dig into the
subject.

--
Ed Huntress

.........
metalworking projects
www.kwagmire.com/metal_proj.html


"Ed Huntress" wrote in message
...

"Wild_Bill" wrote in message
...
I'd be concerned about being in the vicinity of any airborne liquid
droplets, and I'm a bit surprised that this has been a standard method
for machining. The concept just seems like it would be an obvious health
hazard when things like plumbing and electronics manufcturing are going
to lead-free processes, mainly out of rampant paranoia, IMO.

I haven't used a coolant or a cutting lubricant system on any of my
hobby metalworking machines, but a mist system would probably have to be
my last consideration.
Misting seems like a great idea for a greenhouse though, if people
aren't occupying the same space.


One thing that we hobbyists often forget is that machine tools used in
production today are mostly fully enclosed. In some cases (more in Europe
than here in the US) they're also fully ventilated. And the exhaust from
these systems is NOT ventilated to the outdoors. It generally goes to
some kind of central collection system.

--
Ed Huntress

This whole subject needs a good venting here. Over the years I've seen an
endless stream of misconceptions about coolants and lubricants, and, of
course, we have a wide range of hobbyists and commercial shops represented
here, using many different types and vintages of machines. Most of us
hobbyists, running 60-year-old toolroom-type lathes and HSS tools, have no
business running coolant of any kind. We should be using cutting oils, not
soluble oils or synthetics. And, except for people using better production
machines of more recent vintage, few of us run carbide at its limits,
either, and have little or no need for coolants. Coolants come into


OK, educate me. I am using a series one Bridgeport mill and a 70s Graziano
lathe. I mostly use carbide indexable cutting tools, but some solid carbide
and HSS mills. What lubricants (available in California) would be best for
steel and titanium? I am with happy with kerosene for aluminum , and cut
magnesium dry.
I generally keep my speeds and feeds to the low side to reduce tool costs,
and avoid blue chips. Should I let the work get really hot, and then have to
figure shrinkage into the final dimension?

--Dunno if they're still around but Wynn's used to sell an additive
for their soluble oils that would cause the fog to condense rapidly,
preventing its hanging in the air forever. I remember it was something I
added to Wynns 331, but forget the name/number.

--
"Steamboat Ed" Haas : Do us a favor and rescue
Hacking the Trailing Edge! : a doggie or three...
www.nmpproducts.com
---Decks a-wash in a sea of words---

In article , Stupendous Man
wrote:

I have been doing quite a bit of lathe work using a kool-mist this week and
due to cold weather have the shop closed up. I came down with a flu or
something on day 2.
They spec sheet says it totally safe, but does anyone know something
different?
Maybe just the fact that I have been breathing a lot of water vapor could
make it easier to get sick?

All the appropriate remarks about coolant vapor notwithstanding, a cold
or the flu is a viral infection. You got it by exchanging vapor with
someone who was already infected (a sneeze, a cough, by shaking hands,
or handling coins, etc.).

I guess the question would be whether or not breathing coolant vapor
gives the virus a more direct vector to your bloodstream.

-Frank

--
Here's some of my work:
http://www.franksknives.com/