3D Printing

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Groucho

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Lads, please, what the bloody hell is it. Explain it to me like I'm 5.

Is it CAD attached to a lathe?
 

Machines that use computer designed blueprints to create 3D objects using synthetic materials. It basically allows anybody who can afford the machine to create things that would have previously taken far larger industrial machinery and know how. You can make furniture, clothes, even guns from designs available freely online.
 
Like you're 5? Okay.

You know when you go get a Mr. Whippy and the ice cream man holds the lever and it fills up to the top? It's like that, only it doesn't work as fast, it does it in layers of about 30μ depth, going back and forth like your standard printer does on a piece of paper.
 
Heard a story the other day on the radio about a 3d printer being utilized to make a prosthetic hand for a young child. Cost about $150 compared to thousands and thousands. Must admit got choked up when the parents were interviewed and explained the benefit. For children, it's tough because they are growing and will need many prostheses before reaching adulthood.
 

Lads, please, what the bloody hell is it. Explain it to me like I'm 5.

Is it CAD attached to a lathe?

Nope thats cad cam, and even then the cad prog has to write a prog for the lathe as there are a few different cnc programming systems/languages. some using codes and some using 'conversational' languages.
That's what I USED to do btw.


3d printing is producing a 3d figure part from a drawing using stereo lithography or laser sintering, I got a job years ago at a place based in Liverpool Uni that made 3d prototypes, and exact replicas for museums, they were gonna teach me how to use all of the latest technology for it at the time (and no doubt keeping up with the tech), my 1st job was to be making an exact 1:1 replica of the oldest gaelic cross in Ireland as the weather was starting to deteriorate the original.
A lot of funding was pulled though and they couldn't afford to take me on, in fact the place ended up closing down due to funding issues from the museums.

Look up stereo lithography on youtube.
Basically 2 lasers projects through a liquid and where they meet the liquid solidifies, and a part can be built up in 'layers.' laser sintering does it in basically a cloud of dust.

Nowadays 3d printers can use a variety of materials to produce finished parts as opposed to prototypes made just of a plastic resin.

Very complex parts can be produced without the need for any 'machining' or assembly

new-balance-3-d-printed-shoes-1.jpg



3d-model.jpg
 
A variety of 3d printed objects....
https://www.google.co.uk/search?q=3...4Ag&ved=0CAYQ_AUoAQ&biw=1242&bih=610#imgdii=_


This was 'printed' requiring zero assembly
3d_printed_strandbeest_theo_jansen-thumb-525xauto-35707.jpg



Dutch kinetic artist Theo Jansen has created a 3D printed Strandbeest that's powered by the wind.

For more than 20 years Jansen has been preoccupied with creating new forms of life. He is the creator of Strandbeests, full scale kinetic artworks made of PVC tubing that, powered by the wind, can walk down a beach powered by the wind.

The 3D Printed Strandbeest is a smaller, but just as complex, mechanical structure which is 3D printed in one piece. It can work right from the 3D printer, without any assembly.

 


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