On 07/07/11 2:38 PM, harry wrote:
On Jul 7, 9:45 am, The Daring
wrote:
On 7/7/2011 1:26 AM, harry wrote:
On Jul 7, 12:45 am, The Daring
wrote:
On 7/6/2011 11:16 AM, harry wrote:
On Jul 6, 4:06 pm, "Bob-tx"No Spam no contact wrote:
If this is real, and it does appear to be,
it will absolutely boggle your mind.
It brings questions to mind like how much does
the equipment cost, how strong is the product,
and how much does a finished product cost.
http://www.youtube.com/watch?v=ZboxMsSz5Aw
Bob-tx
I have my doubts about complex mechanisms. Ergo it's ********.
How, for example, was the machine/"scanner" able to determine the
nature of the thread inside the wrench?
No-one could determine that without dismantling the wrench first.
Ergo, niether could the machine.
Ergo, ********.
Possibly could be done for simple, none hollow, components.
But even then scanning would have to be done from all six sides, and
the object would have to be securely fixed as would the scanner.
So as displayed, total ********, only dopey Americans would be taken
in.
Harry, it's real and was produced by ignorant, stupid, savage Americans.
The first example of a rapid prototyping machine I saw up close and
personal was at a computer exposition in the early 1990's which used a
liquid and a laser beam to harden the liquid plastic as the platform
lowered itself into the liquid bath. Stupid, savage medical researchers
in The United States have used ink jet printing technology to make
replacement body parts. I believe they are using a collagen material to
produce a matrix for living cells to grow into and form a new organ or
part. Not bad for ignorant, stupid, war mongering, savage terrorists. :-)
TDD- Hide quoted text -
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Quote sources.
And were they able to make working gearboxes as shown on the hoax?
You are the last person I expected to be taken in by this crap on
Youtube.
Total ********.
I've read the scientific and engineering journals on it over the years.
I read everything I can get my hands on about any number of things. The
rapid prototyping technology has been around for many years and it is
now in a very advanced state in countries all over the world including
The UK. The 3D printers CAN produce moving parts in one step. ^_^
http://www.baldor.com/pdf/literature...7_0908_WEB.pdf
http://www.gizmag.com/dimension-upri...desktop/13743/
http://www.intechopen.com/source/pdf...ototyping_for_...
http://tinyurl.com/6xbs3t4
TDD- Hide quoted text -
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Right I read through your links. It confirms exactly what I said.
No-one is claiming to make multipart objects. They make separate
components which can be assembled.
The origin of the parts made is a CAD programme. No-one is scanning
spanners.
Explain to me how you supposed a "scanner" could determine the
dimensions of the thread inside the spanner.
Keep reading until you see my post about the Cerec machine used in
dentistry.
Or visit this link:
http://www.cereconline.com/cerec/demo.html
The "scanner" in question is probably not your basic flatbed scanner,
but instead a *camera* like that used with the Cerec system. Multiple
pictures are taken and stitched together in a Cad/Cam machine before
sending the data to the printer (or to a milling machine in the case of
dental implants)
2 things that the video didn't show that might "explain how a 'scanner'
could determine the dimensions of the thread inside the spanner."
1 - The spanner could have been disassembled and pictures taken of the
interior threads.
2 - As in the case of the inlay the dentist made for me while I watched,
the images were manipulated by the operator before the data was sent to
the printer.
Let's think abut what we know about the dimensions of the interior
threads of a spanner. Seems to me that they would have to be pretty
close to the dimensions of the *exterior* threads of a spanner. In fact,
they are the exact opposite, aren't they?
One click of a mouse in a Cad/Cam application would "invert" the
dimensions of the exterior threads and create an image of the interior
threads.
Do you really think that when they design 2 mating parts in a Cad/Cam
machine they design one part from the very beginning and then start from
scratch and design the opposite image from the very beginning? You'd be
really surprised what computers can do these days.