Slashdot.org coverage of 3D printed lowers

[curtisfong]

http://hardware.slashdot.org/story/12/07/26/1636254/the-worlds-first-3d-printed-gun

What is interesting about this article is the comments. Quite a bit of non-anti gun sentiment.

[njineermike]

Love this comment:

Knowing our Congress, they'll try to ban teaching Geometry in schools.

[ElvenSoul]

Very Nice!

[pointedstick]

It's amazing that folks took so long to notice. There are probably thousands, if not tens of thousands of DIY hobbyists with simple home-made FDM machines capable of churning out lowers.

Like me

[curtisfong]

Also, take note: there is a reason there aren't many anti-gun comments on /.

Technologists are enamored with technology; they don't care for it when luddites attach emotional characteristics to inanimate technology, especially if the technology is "cool".

This is your future NRA member and gun owner.

[1911su16b870]

Here is the AR22 pistol link w pic.

[Untamed1972]

Love this comment:

Hey...they're already suspeding kids from school just for drawing pics of guns...dont give them any ideas

[Rust]

Haveblue is also a very well regarded airsmith from the old school paintball world. This is making the rounds in those forums as well and there are quite a few of us who both play PB and shoot.

[Mesa Tactical]

What is interesting about this article is the comments. Quite a bit of non-anti gun sentiment.

What interests me is the suggestion this is the first time it's been done. Not even close.

[njineermike]

What interests me is the suggestion this is the first time it's been done. Not even close.

That the lower is printed in plastic? From what I know of stereolithographic protoyping, this may well be one of the first due to the inherent weakness of the typical "printed" plastic due to the extrusion or sintering process. Typical "polymer" lowers (or any other part required to withstand any stresses) are injection molded for the highest possible structural strength and dimensional tolerance. Most printed parts are solely for the prototyping and fitup process, after which a mold is machined for mass production.

[nick]

What bugs me about such articles is the ignorance. They keep talking about "gun licenses", while very few states actually have that idiocy. I blame TV and movies for that - they keep yapping "do you have a license for that" or "it's registered to", like that's something normal. Then again, they usually make shows/movies about crapholes like CA and NYC.

[Stonewalker]

What interests me is the suggestion this is the first time it's been done. Not even close.

My thoughts exactly

That the lower is printed in plastic? From what I know of stereolithographic protoyping, this may well be one of the first due to the inherent weakness of the typical "printed" plastic due to the extrusion or sintering process. Typical "polymer" lowers (or any other part required to withstand any stresses) are injection molded for the highest possible structural strength and dimensional tolerance. Most printed parts are solely for the prototyping and fitup process, after which a mold is machined for mass production.

I'm sure that these have their inherent weaknesses because of all the reasons you mentioned, but this came up last year -

http://www.thingiverse.com/thing:11669

[njineermike]

My thoughts exactly



I'm sure that these have their inherent weaknesses because of all the reasons you mentioned, but this came up last year -

http://www.thingiverse.com/thing:11669

Interesting. This specific part is actually a milled piece, but I'd still love to find out what type of plastci and what process was used on the printed one. It's a LOT easier to print than to mill.

[model63]

Cool. Since they won't be able to stop Joe DIY Gunsmith from making his own 3D pictures (lowers) and I doubt they'll be able to regulate sale of these machines making such things, I would think the threat of registration for some other Evil parts might increase....

I've been waiting for that damn porcelain Glock I saw in Die Hard for some time now...I guess I'll have to settle for my homemade 3D plastic one instead.

[njineermike]

Cool. Since they won't be able to stop Joe DIY Gunsmith from making his own 3D pictures (lowers) and I doubt they'll be able to regulate sale of these machines making such things, I would think the threat of registration for some other Evil parts might increase....

I've been waiting for that damn porcelain Glock I saw in Die Hard for some time now...I guess I'll have to settle for my homemade 3D plastic one instead.

I'm surprised fiber reinforced Delryn isn't being used in more parts as it is. It's the same stuff they make polymer timing gears out of for engines now.