World of Print: News:
3D printing is not new, but the range of
possibilities for this technology has been expanding rapidly. No longer
used only for prototypes or patterns in industry, 3D printing is
increasingly being used to manufacture parts in a wide variety of
industries. The following video shows just some of its capabilities.
UBM
Canon will be presenting educational sessions on 3D printing and its
uses at Design & Manufacturing New England at the Boston Convention
& Exhibition Center, March 26-27, 2014. A free presentation on The
3D Printing Revolution will be offered at the Tech Theater the Expo Hall
floor at the event. In addition, the advanced Learning Labs will
provide a 2-hour session on this technology, in addition to sessions on
Lean Manufacturing, Innovations in Robotics Technology, and other
topics.
Co-located with BIOMEDevice Boston, Electronics New England,
and PLASTEC New England, the combined trade show brings hundreds of
exhibitors to the region. New this year, Speed Networking will allow
registered attendees to sign up to meet like-minded people at the event.
www.ubm.co
Friday, March 21, 2014
Saturday, March 08, 2014
blood-vessel-like structures using a 3-D printer and “disappearing” ink. http://blog.applysci.com/?p=1815
MIT Technology Review
Harvard professor Jennifer Lewis has created a patch of tissue containing skin cells and biological structural material interwoven with blood-vessel-like structures using a 3-D printer and “disappearing” ink.
Lewis’s team created hollow, tube-like structures within a mesh of printed cells using an “ink” that liquefies as it cools. The tissue is built by the 3-D printer in layers. A gelatin-based ink acts as extracellular matrix—the structural mix of proteins and other biological molecules that surrounds cells in the body. Two other inks contained the gelatin material and either mouse or human skin cells. All these inks are viscous enough to maintain their structure after being laid down by the printer.
A third ink with counterintuitive behavior helped them create the hollow tubes. This ink has a Jell-O-like consistency at room temperature, but when cooled it liquefies. The team printed tracks of this ink amongst the others. After chilling the patch of printed tissue, the researchers applied a light vacuum to remove the special ink, leaving behind empty channels within the structure. Then cells that normally line blood vessels in the body can be infused into the channels.
The smallest channels printed were about 75 micrometers in diameter, which is much larger than the tiny capillaries that exchange nutrients and waste throughout the body. The hope is that the 3-D printing method will set the overall architecture of blood vessels within artificial tissue and then smaller blood vessels will develop along with the rest of the tissue.
Harvard professor Jennifer Lewis has created a patch of tissue containing skin cells and biological structural material interwoven with blood-vessel-like structures using a 3-D printer and “disappearing” ink.
Lewis’s team created hollow, tube-like structures within a mesh of printed cells using an “ink” that liquefies as it cools. The tissue is built by the 3-D printer in layers. A gelatin-based ink acts as extracellular matrix—the structural mix of proteins and other biological molecules that surrounds cells in the body. Two other inks contained the gelatin material and either mouse or human skin cells. All these inks are viscous enough to maintain their structure after being laid down by the printer.
A third ink with counterintuitive behavior helped them create the hollow tubes. This ink has a Jell-O-like consistency at room temperature, but when cooled it liquefies. The team printed tracks of this ink amongst the others. After chilling the patch of printed tissue, the researchers applied a light vacuum to remove the special ink, leaving behind empty channels within the structure. Then cells that normally line blood vessels in the body can be infused into the channels.
The smallest channels printed were about 75 micrometers in diameter, which is much larger than the tiny capillaries that exchange nutrients and waste throughout the body. The hope is that the 3-D printing method will set the overall architecture of blood vessels within artificial tissue and then smaller blood vessels will develop along with the rest of the tissue.
Saturday, March 01, 2014
Have you seen Creator DIY 3d Printer Kit
3d Stuffmaker - Creator DIY 3d Printer Kit Additive Manufacturing
5 micron print accuracy, with 50-700 microns.
Exchangeable print plates, extruders and nozzles.
Eco-friendly, non-hazardous print filament(PLA).
0.09 to 0.7mm layer height (super-fine to fast & coarse surface finish).
Easy Printing Software and User Manual.
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