3D Printing Materials: Acrylonitrile Butadiene Styrene (ABS)

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3D Printing Materials Acrylonitrile Butadiene Styrene (ABS)

ABS is a petroleum-based plastic.  ABS is non-biodegradable.  ABS is a strong and durable material.  Therefore it is used in various products including protective headgear, golf club heads, carrying cases, enclosures for electronic assemblies, kitchen appliances, and toys including Lego bricks.  ABS is soluble in acetone, i.e., nail polish remover.

ABS is extruded at temperatures of 210-250°C.  Heating up ABS causes fumes to be released.  These fumes are usually tolerable but may cause irritation in people with chemical sensitivities.  These fumes include chemicals that are known to be carcinogenic.  Therefore, 3D printing using ABS should be performed with caution and in places with adequate ventilation.

 

Wikipedia: ABS

3D Printing For Beginners: What Material Should I Use For 3D Printing?

Protoparadigm: The Difference Between ABS and PLA for 3D Printing

MakerBot: ABS Filament

http://reprap.org/wiki/ABS

3D Printing 101: PLA or ABS?

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3D Printing Materials: Poly Lactic Acid (PLA)

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3D Printing Materials Poly Lactic Acid (PLA)

Poly Lactic Acid or PLA is made from organic material, for example, cornstarch, tapioca, or sugarcane.  PLA is used in the production of bags, food packaging, disposable utensils, plastic bags, and so on.  PLA is used as surgical implants such as anchors, rods, pins, or plates, since it.  If inserted in the body, PLA breaks into harmless lactic acid within 6 months to a couple of years.  The slow degradation helps the body to slowly take over the role of the implanted structure as it recovers.

Since PLA is made from renewable resources, it is one of the most environmentally friendly materials used for 3D printing.  PLA is extruded at a temperature of 160°C to 220°C.  Since PLA has a low melting temperature, parts made from PLA can warp under heated conditions.   When heated for 3D printing, PLA emits a sweet smell similar to corn.  These are not harmful fumes and therefore PLA can be used for 3D printing indoors.  PLA comes in most colors including translucent and glows in the dark. PLA cools slowly and therefore some 3D printers install a fan to cool down the 3D printed material.  When PLA cools down it is tough but rather brittle.  PLA has become a popular choice of material for 3D printing due to its environmental friendliness and low toxicity.

Wikipedia: Polylactic acid

3D Printing For Beginners: What Material Should I Use For 3D Printing?

PLA Filament from MakerBot Store

Flashgamer: 3D printing with Color

http://reprap.org/wiki/PLA

http://3dfilamenta.com/blog/pla-filament-the-plastic-used-for-3d-printing/

 

Organovo: 3d Printing Living Tissue

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Organovo 3d Printing Living Tissue

According to the Organovo,” This is a medical research company headquartered in San Diego which designs and develops three-dimensional human tissue. The living 3D printed tissue can be used for testing drugs before giving the drugs to a real person.  Organovo uses a proprietary bioprinting platform called NovoGen for 3D printing tissue.

Pharmaceutical companies conventionally perform testing on animals or on cells in Petri-dishes.  Both methods of testing are very different from testing on a living person.  Therefore several clinical trials fail when tried on living person even if they were considered successful on animals or cells in petri-dish.  Organovo technology bridges this gap by providing 3D tissue models that are much closer to a living person.  Pharmaceutical companies can use the 3D tissues developed using this technology for testing.

In 2014 Organovo announced the commercial release of exVive3DTM Human Liver Tissue for preclinical drug discovery testing.  In April 2015, Organovo presented results of 3D printing in vitro 3D kidney tissue at the 2015 Experimental Biology conference in Boston.  In 2015 L’Oreal signed an agreement with Organovo to produce 3D printed skin for use in testing of cosmetics.  The long-term goal of Organovo’s 3D bioprinting technology is to be able to create organs for transplantation”.:)

http://www.organovo.com

https://en.wikipedia.org/wiki/Organovo

Orgonovo Company Profile Video

 

 

Youtube video of interview with Keith Murphy, CEO of Organovo

Youtube Video: 3D Bioprinter

 

Yobi3D: A Search Engine for 3D Models

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According to Yobi3D,” this is a Search Engine for 3D Models, which allows users to perform the keyword search for 3D models on the Internet. Yobi3D provides a built-in viewer that allows users to see 3D models from different angles using the browser.  Users can rotate the 3D model in any direction using the cursor. Users can also zoom in and zoom out, view a wireframe of the object, and go to the website where the model can be downloaded.  Yobi3D has been considered the Google of 3D models.  Advanced search parameters can be specified, for example, minimum or maximum number of vertices, minimum or maximum number of polygons, type of license, file formats, level of difficulty for printing (easy, medium or hard), and so on.

Yobi3D was founded by Jessy Lee, Ph.D. from the University of Southern California.  Yobi3D is headquartered in Taiwan”.:)

Yobi3D Facebook Page

Yobi3D Youtube Video

https://www.yobi3d.com

yobi3d