Here's a new hobby idea for the hard-core 2nd-Amendment types, who lust over
loaded howitzers as lawn ornaments, and MANPADS for duck hunting, etc.:

================================================== ==============================

ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army Armament
Research, Development, and Engineering Center believe that 3-D printing
€œwill present security experts and policy makers with capabilities
previously unimaginable.€� The AP quotes James Zunino, materials engineer
with the center, saying, €œOnce you get into detonation physics, you open up
a whole new universe.€� The piece reports that Zuninos work €œinvolves
figuring out how different layers of explosive material can be packaged in
new shapes to get a very specific result.€�

--
Ed Huntress

"Ed Huntress" wrote in message
...
Here's a new hobby idea for the hard-core 2nd-Amendment types, who
lust over loaded howitzers as lawn ornaments, and MANPADS for duck
hunting, etc.:

================================================== ==============================

ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army
Armament Research, Development, and Engineering Center believe that
3-D printing "will present security experts and policy makers with
capabilities previously unimaginable." The AP quotes James Zunino,
materials engineer with the center, saying, "Once you get into
detonation physics, you open up a whole new universe." The piece
reports that Zunino's work "involves figuring out how different
layers of explosive material can be packaged in new shapes to get a
very specific result."

--
Ed Huntress

If they could only 3-D print Plutonium...

"Jim Wilkins" wrote in message ...


"Ed Huntress" wrote in message
...
Here's a new hobby idea for the hard-core 2nd-Amendment types, who lust
over loaded howitzers as lawn ornaments, and MANPADS for duck hunting,
etc.:

================================================== ==============================

ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army Armament
Research, Development, and Engineering Center believe that 3-D printing
"will present security experts and policy makers with capabilities
previously unimaginable." The AP quotes James Zunino, materials engineer
with the center, saying, "Once you get into detonation physics, you open
up a whole new universe." The piece reports that Zunino's work "involves
figuring out how different layers of explosive material can be packaged in
new shapes to get a very specific result."

--
Ed Huntress

If they could only 3-D print Plutonium...

================================================== ====

[Ed]

Be careful what you wish for....

--
Ed Huntress

On Thursday, July 31, 2014 9:24:34 AM UTC-4, Jim Wilkins wrote:
"Ed Huntress" wrote in message

...

Here's a new hobby idea for the hard-core 2nd-Amendment types, who

lust over loaded howitzers as lawn ornaments, and MANPADS for duck

hunting, etc.:



================================================== ==============================



ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge

Explosives.

The AP (7/31, Ernst) reports that researchers at the US Army

Armament Research, Development, and Engineering Center believe that

3-D printing "will present security experts and policy makers with

capabilities previously unimaginable." The AP quotes James Zunino,

materials engineer with the center, saying, "Once you get into

detonation physics, you open up a whole new universe." The piece

reports that Zunino's work "involves figuring out how different

layers of explosive material can be packaged in new shapes to get a

very specific result."



--

Ed Huntress



If they could only 3-D print Plutonium...

It ought to be easy with these multi-nozzle printers. You just fill one hopper with electrons, one with protons and one with neutrons and have at it.

Wouldn't surprise me at all if, in a hundred or a thousand years, such a machine would actually exist.

rangerssuck fired this volley in
:

It ought to be easy with these multi-nozzle printers. You just fill
one hopper with electrons, one with protons and one with neutrons and
have at it.

Wouldn't surprise me at all if, in a hundred or a thousand years, such
a machine would actually exist.

IBM did something akin to that way back in 1989. They moved around
individual atoms of Xenon on a substrate to spell out "IBM" at scanning-
tunneling microscopy size.

Lloyd

On Thursday, July 31, 2014 10:27:18 AM UTC-4, Lloyd E. Sponenburgh wrote:
rangerssuck fired this volley in

:



It ought to be easy with these multi-nozzle printers. You just fill

one hopper with electrons, one with protons and one with neutrons and

have at it.



Wouldn't surprise me at all if, in a hundred or a thousand years, such

a machine would actually exist.



IBM did something akin to that way back in 1989. They moved around

individual atoms of Xenon on a substrate to spell out "IBM" at scanning-

tunneling microscopy size.



Lloyd

Take a look at this - there's some awfully cool stuff going on out there...
http://www.research.ibm.com/articles...id=UYA9Qz_LoPd

"rangerssuck" wrote in message
...
On Thursday, July 31, 2014 9:24:34 AM UTC-4, Jim Wilkins wrote:
If they could only 3-D print Plutonium...

It ought to be easy with these multi-nozzle printers. You just fill
one hopper with electrons, one with protons and one with neutrons
and have at it.

Wouldn't surprise me at all if, in a hundred or a thousand years,
such a machine would actually exist.

http://www.scienceforums.net/topic/65715-neutron-gun/
You can pull an electron gun out of the neck of an old CRT and protons
are just ionized hydrogen.
http://www.cbs8.com/story/24766749/n...t-center-opens

You can even buy an antimatter gun:
http://en.wikipedia.org/wiki/Positro...n_spectroscopy

http://www.nlm.nih.gov/medlineplus/e...cle/003827.htm
Leave the Dilithium jewelry at home.

-jsw

"Jim Wilkins" on Thu, 31 Jul 2014 09:24:34
-0400 typed in rec.crafts.metalworking the following:
"Ed Huntress" wrote:
Here's a new hobby idea for the hard-core 2nd-Amendment types, who
lust over loaded howitzers as lawn ornaments, and MANPADS for duck
hunting, etc.:
================================================== ==============================

ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army
Armament Research, Development, and Engineering Center believe that
3-D printing "will present security experts and policy makers with
capabilities previously unimaginable." The AP quotes James Zunino,
materials engineer with the center, saying, "Once you get into
detonation physics, you open up a whole new universe." The piece
reports that Zunino's work "involves figuring out how different
layers of explosive material can be packaged in new shapes to get a
very specific result."

--
Ed Huntress

If they could only 3-D print Plutonium...

It is being worked on. Maybe not intentionally working on
'printing' Plut parts, but eventually there will be some work with
reactive metals. Like Aluminum.
--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."

"Lloyd E. Sponenburgh" wrote:

rangerssuck fired this volley in
:

It ought to be easy with these multi-nozzle printers. You just fill
one hopper with electrons, one with protons and one with neutrons and
have at it.

Wouldn't surprise me at all if, in a hundred or a thousand years, such
a machine would actually exist.

IBM did something akin to that way back in 1989. They moved around
individual atoms of Xenon on a substrate to spell out "IBM" at scanning-
tunneling microscopy size.


Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive components..


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

pyotr filipivich wrote:

It is being worked on. Maybe not intentionally working on
'printing' Plut parts, but eventually there will be some work with
reactive metals. Like Aluminum.


Custom printed aluminum beanies, for the loons?


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

"Michael A. Terrell" fired this volley in
m:

Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive
components..

Well... xenon might not be the best candidate there, as it's a gas at
STP, but I'm sure other atoms - like precious metals - might be
manipulated the same way.

The problems are mass and reactivity. Higher electron beam energies to
move more massive atoms. Xenon was probably chosen because it is inert
and light. No real dangers of its entering into chemical reactions with
the substrate, which might move the dots.

Helium might have worked, too, but the atoms are so small that maybe even
scanning-tunneling might not have shown them up very well -- if at all.

LLoyd

"pyotr filipivich" wrote in message
...

"Jim Wilkins" on Thu, 31 Jul 2014 09:24:34
-0400 typed in rec.crafts.metalworking the following:
"Ed Huntress" wrote:
Here's a new hobby idea for the hard-core 2nd-Amendment types, who
lust over loaded howitzers as lawn ornaments, and MANPADS for duck
hunting, etc.:
================================================== ==============================

ARDEC Engineers Using 3-D Printing To Revolutionize Shaped Charge
Explosives.
The AP (7/31, Ernst) reports that researchers at the US Army
Armament Research, Development, and Engineering Center believe that
3-D printing "will present security experts and policy makers with
capabilities previously unimaginable." The AP quotes James Zunino,
materials engineer with the center, saying, "Once you get into
detonation physics, you open up a whole new universe." The piece
reports that Zunino's work "involves figuring out how different
layers of explosive material can be packaged in new shapes to get a
very specific result."

--
Ed Huntress

If they could only 3-D print Plutonium...

It is being worked on. Maybe not intentionally working on
'printing' Plut parts, but eventually there will be some work with
reactive metals. Like Aluminum.
--
pyotr filipivich

================================================== =========

[Ed]

Printing powdered metals and sintering them with a laser is already being
done. I was just inquiring today with a company involved in it, to see what
density they've achieved. It's high, but apparently they haven't hit 98%
yet, which is about what you get with conventional pressing and sintering,
plus a post-sinter "hit" with a press.

--
Ed Huntress

"Lloyd E. Sponenburgh" wrote:

"Michael A. Terrell" fired this volley in
m:

Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive
components..

Well... xenon might not be the best candidate there, as it's a gas at
STP, but I'm sure other atoms - like precious metals - might be
manipulated the same way.

The problems are mass and reactivity. Higher electron beam energies to
move more massive atoms. Xenon was probably chosen because it is inert
and light. No real dangers of its entering into chemical reactions with
the substrate, which might move the dots.

Helium might have worked, too, but the atoms are so small that maybe even
scanning-tunneling might not have shown them up very well -- if at all.


I felt it was a Gee-Wiz, PR type of thing when they first announced
it. The magazine I saw it in proclaimed it as the perfect computer
memory. Useless trade journals strike again!


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

"Michael A. Terrell" on Thu, 31 Jul 2014
14:15:58 -0400 typed in rec.crafts.metalworking the following:

"Lloyd E. Sponenburgh" wrote:

"Michael A. Terrell" fired this volley in
m:

Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive
components..

Well... xenon might not be the best candidate there, as it's a gas at
STP, but I'm sure other atoms - like precious metals - might be
manipulated the same way.

The problems are mass and reactivity. Higher electron beam energies to
move more massive atoms. Xenon was probably chosen because it is inert
and light. No real dangers of its entering into chemical reactions with
the substrate, which might move the dots.

Helium might have worked, too, but the atoms are so small that maybe even
scanning-tunneling might not have shown them up very well -- if at all.


I felt it was a Gee-Wiz, PR type of thing when they first announced
it. The magazine I saw it in proclaimed it as the perfect computer
memory. Useless trade journals strike again!

Proof of concept. "Okay, we know it works, can we do it in a
manner which will scale up and be 'commercial'?"
Sort of how Henry Ford built a horseless carriage in his shop, but
built a factory to churn them out by the hundreds.

tschus
pyotr

--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."

pyotr filipivich wrote:

"Michael A. Terrell" on Thu, 31 Jul 2014
14:15:58 -0400 typed in rec.crafts.metalworking the following:

"Lloyd E. Sponenburgh" wrote:

"Michael A. Terrell" fired this volley in
m:

Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive
components..

Well... xenon might not be the best candidate there, as it's a gas at
STP, but I'm sure other atoms - like precious metals - might be
manipulated the same way.

The problems are mass and reactivity. Higher electron beam energies to
move more massive atoms. Xenon was probably chosen because it is inert
and light. No real dangers of its entering into chemical reactions with
the substrate, which might move the dots.

Helium might have worked, too, but the atoms are so small that maybe even
scanning-tunneling might not have shown them up very well -- if at all.


I felt it was a Gee-Wiz, PR type of thing when they first announced
it. The magazine I saw it in proclaimed it as the perfect computer
memory. Useless trade journals strike again!

Proof of concept. "Okay, we know it works, can we do it in a
manner which will scale up and be 'commercial'?"
Sort of how Henry Ford built a horseless carriage in his shop, but
built a factory to churn them out by the hundreds.




www.youtube.com/watch?v=eXQf0JG8Uj8


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

On Thursday, July 31, 2014 9:12:09 AM UTC-4, Ed Huntress wrote:
Here's a new hobby idea for the hard-core 2nd-Amendment types, who lust over

loaded howitzers as lawn ornaments, and MANPADS for duck hunting, etc.:


Speaking of lawn ornaments Ed, do you know what ever happened to Existential Angst (Kris)?

"PCS" wrote in message
...

On Thursday, July 31, 2014 9:12:09 AM UTC-4, Ed Huntress wrote:
Here's a new hobby idea for the hard-core 2nd-Amendment types, who lust
over

loaded howitzers as lawn ornaments, and MANPADS for duck hunting, etc.:


Speaking of lawn ornaments Ed, do you know what ever happened to Existential
Angst (Kris)?

================================================== ==========

I haven't heard from him for a long time. I'll try sending him email.

--
Ed Huntress

"Michael A. Terrell" on Thu, 31 Jul 2014
23:35:45 -0400 typed in rec.crafts.metalworking the following:
pyotr filipivich wrote:
"Michael A. Terrell" on Thu, 31 Jul 2014
14:15:58 -0400 typed in rec.crafts.metalworking the following:
"Lloyd E. Sponenburgh" wrote:
"Michael A. Terrell" fired this volley:
Did they ever state how long they remained where you put them? That
would be a way to put permanent serial numbers on expensive
components..

Well... xenon might not be the best candidate there, as it's a gas at
STP, but I'm sure other atoms - like precious metals - might be
manipulated the same way.

The problems are mass and reactivity. Higher electron beam energies to
move more massive atoms. Xenon was probably chosen because it is inert
and light. No real dangers of its entering into chemical reactions with
the substrate, which might move the dots.

Helium might have worked, too, but the atoms are so small that maybe even
scanning-tunneling might not have shown them up very well -- if at all.


I felt it was a Gee-Wiz, PR type of thing when they first announced
it. The magazine I saw it in proclaimed it as the perfect computer
memory. Useless trade journals strike again!

Proof of concept. "Okay, we know it works, can we do it in a
manner which will scale up and be 'commercial'?"
Sort of how Henry Ford built a horseless carriage in his shop, but
built a factory to churn them out by the hundreds.

www.youtube.com/watch?v=eXQf0JG8Uj8

Ah, an oldy, but a goodie.

--
pyotr filipivich
"With Age comes Wisdom. Although more often, Age travels alone."

pyotr filipivich wrote:

Michael A. Terrell wrote:

pyotr filipivich wrote:

Proof of concept. "Okay, we know it works, can we do it in a
manner which will scale up and be 'commercial'?"

Sort of how Henry Ford built a horseless carriage in his shop,
but built a factory to churn them out by the hundreds.

www.youtube.com/watch?v=eXQf0JG8Uj8

Ah, an oldy, but a goodie.


He tells it like it is.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.