How do you drill through stainless steel at home?

On Fri, 8 Mar 2013 17:08:39 +0000 (UTC), "Danny D."
<danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 08:52:12 -0800, Jeff Liebermann wrote:

In my checkered past, I once worked for a company that made air
droppable tank gun barrels and such. I swept the floor, which is a good
indication of my level of expertise at the time. The company was called
"Hydromill" which is a clue of how things were machined. Most
everything was machined submerged in a tank of coolant. I don't know if
it will work, but submerging the drill, stainless part, and vise in a
small tub of oil, while drilling, might slow down the work hardening.
I've never tried this mostly because it's too messy.

Hi Jeff,
Funny you mention your floor-sweeping past, as I also had
a summer job at a "plant" filled with metalworking machines
and Germans running them (real Germans, with heavy accents).

They 'drilled' .010" holes in jet turbine blades using a machine
they called the "EDM" machine. It never once broke a bit because
it drilled by automatic feed in a bath of kerosene dialectic
simply by shooting electric current through the bit which was
merely very close to the steel being 'drilled'.

I think the EDM stood for Electro Dialectric Machining, and
the concepts were that the sparks "ate away" the metal.

Needless to say, I didn't bring one home with me...
Click to expand...
Want one? I run across at least 1 a year. I sent one off last year to
be scrapped. Ran fine, nobody wanted it.


The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie
 
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
<danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!
Click to expand...
I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie
 
On Mar 6, 9:07 pm, Stephen H <i.love.s...@please.spam.me.com> wrote:
On 07/03/2013 21:46, Danny D. wrote:

What's the trick to drilling a hole through 1/2" thick stainless steel?

 From my guardrail experience, I had bought titanium coated drill bits.

So I thought it would be easy to drill a hole in a stainless steel can
opener (for hanging on a loop outside by the BBQ cooler).

Nope!

I can't make a dent!
 http://www5.picturepush.com/photo/a/12362068/img/12362068.jpg

What's the trick to drilling through stainless steel?

This is a piece of Pee.....

I was drilling stainless steel today. 20 holes exactly in 3mm think 304
Stainless steel.

You need cobalt drills. Screwfix do a set for 35 quid upwards

You *MUST* use a slow speed

You *MUST* use a cutting fluid

If you don't drill slow and use cutting fluid, the drill bit glows red
hot at the tip and the stianless steel literally hardens under the drill
bit.
Click to expand...
Plus, start with a small drill and work progressively upwards to the
size you want.
 
On 3/10/2013 2:20 AM, Gunner wrote:
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!

I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner
Click to expand...
You may be thinking of Kellem Grips. I've used them for years to pull
wire through conduit or installed them as cord grips. The things work
like Chinese Finger Puzzles. ^_^

http://www.jharlen.com/hubbel033041092.html

TDD
 
On Sun, 10 Mar 2013 04:13:57 -0700, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:

My father's factory (Tosca Lingerie) did not make corsets.

It wasn't managed by a man named Scarpia, was it?
Click to expand...
No. My father (Maurice Liebermann) and his partner (Israel Drier) ran
the factory. There was no general manager. When the business was
sold in about 1987, it was purchased by Dave (I forgot his last name),
who hired his son in law, Jim Greenspan, as general manager. At its
height, in about 1985, we had about 100 employees scattered among 3
buildings. There's currently a retail store at the same location,
that has recycled the name as "Tosca Lingerie II".


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
On Sun, 10 Mar 2013 05:13:43 -0600, The Daring Dufas
<the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 2:20 AM, Gunner wrote:
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!

I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner


You may be thinking of Kellem Grips. I've used them for years to pull
wire through conduit or installed them as cord grips. The things work
like Chinese Finger Puzzles. ^_^

http://www.jharlen.com/hubbel033041092.html

TDD
Click to expand...
Those I have several sizes of. The overhead cable thingies are of the
same type, with a threaded bit of pipe nipple attached .

Want a photo?

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie
 
On 3/10/2013 12:38 PM, Gunner wrote:
On Sun, 10 Mar 2013 05:13:43 -0600, The Daring Dufas
the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 2:20 AM, Gunner wrote:
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!

I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner


You may be thinking of Kellem Grips. I've used them for years to pull
wire through conduit or installed them as cord grips. The things work
like Chinese Finger Puzzles. ^_^

http://www.jharlen.com/hubbel033041092.html

TDD

Those I have several sizes of. The overhead cable thingies are of the
same type, with a threaded bit of pipe nipple attached .

Want a photo?

Gunner
Click to expand...
I was selling the stuff 40 years ago when I worked for an electrical
supply company. I used one a while back to fix a problem for a pizza
place where the kept ripping the outlet out of the wall for their prep
table every time they moved it to clean the floor. I removed the outlet
and installed an hospital grade cord body with a pigtail of 12/3 SO cord
anchored to the wall with a Kellem Grip which would allow the plug to
simply pull straight out of the cord body without damage. I also use the
grips to hang power cords from the ceiling in the middle of shop floors.
^_^

TDD
 
On Sun, 10 Mar 2013 19:48:52 -0600, The Daring Dufas
<the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 12:38 PM, Gunner wrote:
On Sun, 10 Mar 2013 05:13:43 -0600, The Daring Dufas
the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 2:20 AM, Gunner wrote:
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!

I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner


You may be thinking of Kellem Grips. I've used them for years to pull
wire through conduit or installed them as cord grips. The things work
like Chinese Finger Puzzles. ^_^

http://www.jharlen.com/hubbel033041092.html

TDD

Those I have several sizes of. The overhead cable thingies are of the
same type, with a threaded bit of pipe nipple attached .

Want a photo?

Gunner

I was selling the stuff 40 years ago when I worked for an electrical
supply company. I used one a while back to fix a problem for a pizza
place where the kept ripping the outlet out of the wall for their prep
table every time they moved it to clean the floor. I removed the outlet
and installed an hospital grade cord body with a pigtail of 12/3 SO cord
anchored to the wall with a Kellem Grip which would allow the plug to
simply pull straight out of the cord body without damage. I also use the
grips to hang power cords from the ceiling in the middle of shop floors.
^_^

TDD
Click to expand...
Good man, then you have seen them before. Thanks for letting me know
what they are called. I always called them Finger Puzzle cable grips
and the guys at the will call desk knew what I was talking about.

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie
 
On 3/10/2013 8:10 PM, Gunner wrote:
On Sun, 10 Mar 2013 19:48:52 -0600, The Daring Dufas
the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 12:38 PM, Gunner wrote:
On Sun, 10 Mar 2013 05:13:43 -0600, The Daring Dufas
the-daring-dufas@stinky-finger.net> wrote:

On 3/10/2013 2:20 AM, Gunner wrote:
On Fri, 8 Mar 2013 17:28:53 +0000 (UTC), "Danny D."
danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 09:21:29 -0800, Jeff Liebermann wrote:
1. Do you have a bench grinder?
2. Shrink tube and rope.
3. Do a knife handle wrap.
4. Chinese finger trap.
5. Compression fitting.
6. Capacitive discharge spot welding

Hi Jeff,
Actually every one of those would work!

You're very clever (we should invite you to our weekly
"inventor's lunch" up in Palo Alto on Wednesdays).

I've been needing to buy a bench grinder for years,
so, maybe I'll use this as my need-based tooling!

BTW, the chinese-finger-trap seems the most clever!

I have some Cable Hangers..which are a finger trap secured to a 1/2"
conduit threaded connector. For hanging drops from the center hole of
a blank 4x box cover. Might be easily converted to this use. They
finger trap is made from steel cable (not stainless unfortunately)

Gunner


You may be thinking of Kellem Grips. I've used them for years to pull
wire through conduit or installed them as cord grips. The things work
like Chinese Finger Puzzles. ^_^

http://www.jharlen.com/hubbel033041092.html

TDD

Those I have several sizes of. The overhead cable thingies are of the
same type, with a threaded bit of pipe nipple attached .

Want a photo?

Gunner

I was selling the stuff 40 years ago when I worked for an electrical
supply company. I used one a while back to fix a problem for a pizza
place where the kept ripping the outlet out of the wall for their prep
table every time they moved it to clean the floor. I removed the outlet
and installed an hospital grade cord body with a pigtail of 12/3 SO cord
anchored to the wall with a Kellem Grip which would allow the plug to
simply pull straight out of the cord body without damage. I also use the
grips to hang power cords from the ceiling in the middle of shop floors.
^_^

TDD

Good man, then you have seen them before. Thanks for letting me know
what they are called. I always called them Finger Puzzle cable grips
and the guys at the will call desk knew what I was talking about.

Gunner
Click to expand...
You can use them as a come along for prisoners too by slipping them over
their fingers or thumbs. ^_^

TDD
 
On Mar 10, 2:11 am, Gunner <gunnera...@gmail.com> wrote:
On Fri, 8 Mar 2013 16:49:00 +0000 (UTC), "Danny D."

da...@pleasedontemail.com> wrote:
On Fri, 08 Mar 2013 07:27:30 -0800, Stanley Schaefer wrote:

That's a hell of a can opener if it's 1/2" thick!    Might be lassoing
it with a lanyard would be a better way to go.

Yeah, it's a doozie (for a can opener)!
http://www3.picturepush.com/photo/a/12366196/img/12366196.jpg

I bought it at Bed Bath & Beyond for $4, hoping to lanyard it
outside. It's too smooth to just tie a cord around the handle.

And, it's not magnetic & therefore very hard to drill with
my vanadium-coated (brass color) steel drill bits:
http://www2.picturepush.com/photo/a/12366090/img/12366090.jpg

Id hit it with a TIG welder and put a stainless washer on the butt
end. That way you can use any size washer with a big hole in it.

Gunner

If there's no TIG handy, there's always JB Weld. I use brazing filler
Click to expand...
rod for making rings for such things, the local Ace has welded brass
and steel rings in a variety of sizes in the misc. hardware aisle. Or,
if you gotta have heat involved, silver braze will work. Kind of
overkill for a fancy church key.

Post said "can opener" and I'm thinking some variety of Swing-Away,
not a church key. Does anything drinkable still come in steel cans
that need puncturing? Tomato juice and V8 are all I can think of and
those would be the big cans, not individual serving sizes.

Stan
 
On Sat, 9 Mar 2013 01:25:53 +0000 (UTC), "Danny D."
<danny@pleasedontemail.com> wrote:

On Fri, 08 Mar 2013 15:27:27 -0800, Jeff Liebermann wrote:

Form follows function.

This is an important point!

begin embarrassing truth

First, I tried shoe goop + leather strips. Disaster.
Luckily, the shoe goop cleaned off the stainless perfectly.

Then I tried rubber strips (made by cutting a 26"
length of bicycle tube strips about 1/2" wide.
Wouldn't stay on even though I used glue (it unwound
while the glue was setting.

Then, in frustration, I simply used electrical tape
and hanging wire! Butt ugly!

But, as Jeff said, form follows function ...
And, as Oren is fond of saying, "looks fine from far away!".

Here's a picture of the abomination!
(Drilling would have been prettier!).
http://www2.picturepush.com/photo/a/12369220/img/12369220.jpg

Notice the Ballantine Church Key from the 60s' next to it.
At least they had holes in the ends way back then.

I'll probably unwrap the electrical tape when I find
something better - but - for now - it should work
(but it's fuuuugly).
Click to expand...
Personally, i like both leather and SS. If you get a machinist to mill in
three 1/4 inch wide hex portions and wrap with wide spaced wet leather
strips it not only would work but be beautiful and last a decade or more.
Then just remove the old leather, clean thoroughly and do the leather
again.

?-)
 
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