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Advanced 3-D Printing Technology on the Verge of Making Gun Control 'Impossible'
Reaganite Republican ^ | 22 December 2012 | Reaganite Republican

Posted on 12/23/2012 5:09:08 AM PST by Reaganite Republican

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To: SampleMan

That’s old tech.


41 posted on 12/23/2012 9:31:43 AM PST by muawiyah
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To: SampleMan
Here's the situation ~ we are rapidly moving toward a day when we are as good at building metal-like layered products as easily as a termite hardens its jaw ~ by adding metal nano particles ~ check up on termites eating gold nano particles and excreting them since they wanted zinc and copper ~ eventually there's quite a bit of gold in a termite nest eh!

That's where this 3D printing is going ~ where the bugs have been for hundreds of millions of years.

We can also put a 'mind' in the bullet ~ currently the correct positioning of the weapon, and techniques for estimating wind-age result in a bullet hitting the target.

Now, turn that bullet into a server driven device with an internal direction adjustment device (there are some designs for micro miniature inertial guidance systems that seem applicable).

Put that on the 'bullet' and all at once you don't need so many bullets ~ and maybe you can make it a bit larger and add explosives ~ plus you can steer it from the firearm!

Your firing platform could start looking remarkably like your cellphone or pad. The firing mechanism might tend toward looking like one of those plastic holders for the screwdriver blade attachments. The bullet could look like whatever you liked from a jellybean to a pencil!

All the parts could be ginned on your 3-D printer. I think even low heat layered sequential burning propellants could be easily manufactured with your own home-printer ~ replace the explosion with a longer burn and you get to the same target ~ with a computer controlled internal inertial guidance every single time.

FUTURE EVENT: Officer ~ don't show me your wallet, Driver ~ ok officer ~ that's just my tool box, Officer ~ don't open it. Officer ~ keep your mouth closed.

42 posted on 12/23/2012 9:46:42 AM PST by muawiyah
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To: backwoods-engineer

the NYC effete elites fear the citizens.

The obama zombies fear losing their free stuff.


43 posted on 12/23/2012 10:34:01 AM PST by longtermmemmory (VOTE! http://www.senate.gov and http://www.house.gov)
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To: aimhigh

this is why the age of composits is upon us.

the “on demand” production is at home.

Imagine what 3d printing does to countries that need to sell their cheep labor.

Imagine what happens when production can be one off without the need for unionized labor.

it is not the specific item, it is the ABILITY TO PRODUCE which is a threat to government.

It is just a horrific to the DC country club as a country without a monarchy was over 200 years ago.


44 posted on 12/23/2012 12:05:57 PM PST by longtermmemmory (VOTE! http://www.senate.gov and http://www.house.gov)
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To: wideminded

Sintered metal has been around for a long time. Carbide cutting tools and certain wear parts are made from powdered metal mixed with a binder. In essense the mixture gets baked and finish-ground, often with diamond grinding wheels.

With 3-D printing you could make the “pre-forms” very rapidly. I think that for the near-future your still looking at needing a tool shop to grind the semi-finished part coming off the 3D Printer.


45 posted on 12/23/2012 1:25:00 PM PST by Tallguy (Hunkered down in Pennsylvania.)
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To: Tallguy
Was walking down 6th Ave in Manhattan the other day and saw a “pop-up” 3D printing store ( www.3dea.com ). It was too early for it to be open, but I spent some time window shopping thinking this is really cool. You were able to design and print your own gifts, wonder what would happen if you printed a Glock.
46 posted on 12/23/2012 1:35:20 PM PST by Woodman
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To: Tallguy

The correct link for my post is www.3dea.co Sorry.


47 posted on 12/23/2012 1:36:41 PM PST by Woodman
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To: Woodman

They opened one up here in Pasadena, Ca too.


48 posted on 12/23/2012 2:28:22 PM PST by Haddit
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To: wideminded
3-D printing technology can also make things out of metal. As I understand it, the process involves fusing powdered metal into a solid shape.

While metal, the finished part is far from solid and is relatively porous and not all that strong in tension or torsion. One could look to conventional powdered metal fabrication for some help here. Powdered metal parts have been around a lot longer than 3-D printing. Compacting the powder in a die yields a "green part" which has almost no strength. Green parts are "sintered" by heating in a hydrogen atmosphere to just under the melting point of the metal used. The 3-D part is at about the same strength at this point as the more conventional PM part.

The PM part undergoes some slight shrinkage when sintering and may be brought to final dimensional form by re-striking it in a finishing die, forging the final part to finished dimension, increasing it's density and strength.

For the highest strength parts you may take the re-forged part and pass it thru a furnace in contact with a small copper block. Furnace temperature should be just above the melting point of copper with a reducing (hydrogen) atmosphere. The copper melts and capillary attraction draws the liquid copper into the porous PM part where upon cooling it brazes the powdered matrix into one solid piece.

The copper infiltration procedure could be adapted to add final strength to 3-D powdered parts to produce a stronger, near net shape part.

As an alternative I would look for plastic that could be used in the 3-D process yet remain soluble in a suitable solvent (styrene and acetone for instance). Post printing you cement on some gates and vents (made of styrene rod stock using acetone as a glue), Coating your model part with refractory plaster by dipping the model into the plaster which should be about like thick cream. Then inspect for air bubbles which should be popped with gentle blowing. Then use something like a tea strainer to dust the coated model with tiny glass beads (craft shop?? or bead blasting shop) and let air dry. Repeat five times to build up a shell. When dry dissolve the pattern with the solvent. Support your dry plaster pattern in a bed of dry sand with the vents and gates facing up. Preheat the pattern to red heat and pour anything you can melt. When cooled and the plaster removed you will have a solid metal part that can hold dimensional tolerances of +/- 0.001" per inch. This form of casting technology dates back to the bronze age and was lately used by Saturn to turn styrene pellets into engine blocks.

Regards,
GtG

49 posted on 12/23/2012 2:53:35 PM PST by Gandalf_The_Gray (I live in my own little world, I like it 'cuz they know me here.)
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To: AdmSmith; AnonymousConservative; Berosus; bigheadfred; Bockscar; ColdOne; Convert from ECUSA; ...

Thanks Reaganite Republican.


50 posted on 01/05/2013 4:09:31 PM PST by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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