PPT : 3 Dimensional Printing Seminar with Free Download
Published on Jun 23, 2022
Slide 1 :
WELCOME TO THE SEMINAR
Slide 2 :
-3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material.
-It is also known as rapid prototyping, is a mechanized method whereby 3D objects are quickly made on a reasonably sized machine connected to a computer containing blueprints for the object.
-The 3D printing concept of custom manufacturing is exciting to nearly everyone.
-This revolutionary method for creating 3D models with the use of inkjet technology saves time and cost by eliminating the need to design; print and glue together separate model parts.
Slide 3 :
Current 3D Printing Technologies
-Selective laser sintering
-Inkjet 3D printing
Slide 4 :
-Stereo lithographic 3D printers (known as SLAs or stereo lithography apparatus) position a perforated platform just below the surface of a vat of liquid photo curable polymer.
-A UV laser beam then traces the first slice of an object on the surface of this liquid, causing a very thin layer of photopolymer to harden.
-The perforated platform is then lowered very slightly and another slice is traced out and hardened by the laser.
-Another slice is then created, and then another, until a complete object has been printed and can be removed from the vat of photopolymer, drained of excess liquid, and cured
Slide 5 :
Inkjet 3D printing
-It creates the model one layer at a time by spreading a layer of powder (plaster, or resins) and inkjet printing binder in the cross-section of the part.
-It is the most widely used 3-D Printing technology these days and the reasons beyond that are stated below.
-This technology is the only one that
-Allows for the printing of full color prototypes.
-Unlike stereo lithography, inkjet 3D printing is optimized for speed, low cost, and ease-of-use.
-No toxic chemicals like those used in stereo lithography are required.
-Minimal post printing finish work is needed; one needs only to use the printer itself to blow off surrounding powder after the printing process.
Allows overhangs and excess powder can be easily removed with an air blower
Slide 6 :
Slide 7 :
Slide 8 :
-Computer-aided design (CAD), also known as computer-aided design and drafting (CADD), is used to prepare a 3-D or 2-D model of the desired object.
-Modern CAD packages can also frequently allow rotations in three dimensions, allowing viewing of a designed object from any desired angle.
-Most 3D printers require a special file (typically .stl format) to print. Additionally, we need to modify the design to make up for limitations of the printer and build material.
Slide 9 :
-3D printing has a bright future, not least in rapid prototyping (where its impact is already highly significant), but also in medicine the arts, and outer space.
-Desktop 3D printers for the home are already a reality if you are prepared to pay for one and/or build one yourself.
-3D printers capable of outputting in color and multiple materials also exist and will continue to improve to a point where functional products will be able to be output.
-As devices that will provide a solid bridge between cyberspace and the physical world, and as an important manifestation of the Second Digital Revolution, 3D printing is therefore likely to play some part in all of our futures.
Slide 10 :
-The object of 3D printing —from Advertising & Marketing Review
-Printers produce copies in 3D —from BBC NEWS
-'Gadget printer' promises industrial revolution –from NewScientist.com
-From different websites including dimensionprinting.com, en.wikipedia.org/wiki/3D_printing, etc
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