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Transcript of 3D Printing
Unlike traditional manufacturing techniques, material is added rather than removed.
It is also know as additive manufacturing. How does it work? 3D PRINTING What are the
benefits? Current Applications
of 3D Printing How 3D Printing
could change the world
as we know it. 3D printing begins with digital
Computer Aided Design (CAD)
Object can be designed from
Or it can be scanned.
Computer takes virtual designs from CAD and slices them into thousands of horizontal cross-sections each a few micrometres thick. STEP 1 Once the design is finalized, the files are sent to the printer.
The 3D printer builds up the object, one layer at a time, using one of several methods STEP 2 3D Printing is... A bed of powder may be laid down and then solidified in certain places by squirting a liquid binder onto it. Lasers may be used to fuse together powdered ceramic, metal or glass in selected areas. Plastic may be squirted out of a nozzle to build up material in the appropriate parts of each layer. METHOD 1 METHOD 2 METHOD 3 Light may be used to harden selected regions of a photosensitive gel. METHOD 4 Some devices can use more than one material for each layer, or apply inks to produce multi-coloured objects.
Once each layer is complete, the build tray is lowered by a fraction of a millimetre and the construction of the next later begins.
When all the layers have been completed any excess material cleaned away to reveal the finished object. STEP 3 Rapid Prototyping
Saves materials - Lower costs
e.g. Aerospace industry
Pieces made in one go
No assembly Commercial Personal COMMERCIAL USE Prices of 3D Printers have fallen dramatically.
Hobbyists who own 3D printers are creating jewelry and toys.
Potential for abuse; one man
successfully designed and printed
a working rifle. PERSONAL USE 2012 2050 2030 October Exponential Growth of users
Growth expected to rise We are here
3D Printers could be in everyone's homes.
One could download and print customized products.
Products could be manufactured anywhere by anyone.
Possibilities are truly endless!
e.g. Printing replacement body parts. by What is
3D Printing? http://www.solidsmack.com/wpcontent/uploads/2010/04/Radiolaria-cad.jpg http://blog.sculpteo.com/wpcontent/uploads/2012/06/stats2-650x308.png http://a248.e.akamai.net/origin-cdn.volusion.com/