3D printing... pretty damn amazing.

[altieri]

‪3D Printer‬‏ - YouTube

[crosshair]

Bullshit.

I sent that link to my dad. He's a nuclear physicist.
His response:

"Hi Dan -- No, I hadn't heard of this. It sounds and looks pretty incredible, that is, unbelievable. The video showed a scanning process that in my opinion could not have resulted in accurate dimensions: The lamp was moved around while the Crescent wrench sat on top of a flat surface. The dimensional accuracy was supposed to be 40 microns: That's 1/25 mm. The lamp light could not have penetrated into crevices and cracks and could not have been able to distinguish separate surfaces that were in flat-contact from non-movable bonded parts. How did it perceive the channels in which parts of the wrench slide? They lifted the wrench out and dusted it off, and it was apparently immediately usable: Things slid and turned without binding, so all tolerances were perfect. I don't believe this. That differential gear assembly they showed was supposed to have come out fully assembled, with all the hidden and inaccessible surfaces meshing correctly. Bull shit.

Interesting that on the computer image, the operator was able to click once and color the worm gear red: So the image file contained information about what was part of the worm and what wasn't, even though things were touching. Good trick. If two pieces of metal touch, electricity can pass between them just as if they were one, but somehow this scanning process knows that things in contact are not necessarily integral.

I could believe the fabrication or duplication of certain solid objects, provided they were mainly convex (no deep crevices), and the accretive fabrication process sounds clever and possible but futuristic. I'm not saying everything here is false or impossible but I just don't believe it has been done as shown. -- Dad"

[squeegeethree]

This isn't anything new really. I believe that there were some steps in that video that they did not show us.
Send your dad this next.
A 3-D Printer Which Uses The Saharan Sun Instead Of A Laser | Co. Design

[B-DROID]

Way to ruin all the fun with all your science learnin', Dan.

[standard]

this response is right below the video. Real process, real result, just a bit irresponsibly edited (for brevity I'd say, not to be misleading).



they had a 3-D model of a wrench already in their system, and probably went and found a prop to lead in to the piece.

[standard]

and how exactly does a man with that haircut get on television? Aren't there RULES

[squeegeethree]

They edit the hair out later

[altieri]

The printing is what really impressed me anyway and that is real.

[Quinine]

Mr. Kaplan seems like a pretty stand up guy.

MakerBots have been out for awhile. You can buy a kit and make one at home. I know a guy who has one actually. Pretty cool stuff.
MakerBot Industries

[crosshair]

this response is right below the video. Real process, real result, just a bit irresponsibly edited (for brevity I'd say, not to be misleading).



they had a 3-D model of a wrench already in their system, and probably went and found a prop to lead in to the piece.

"If you really want to find out what's true, you should... investigate more..."

LOLZ.

Punk'd.