Register for an account

X

Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.

X

Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.

Technology

Superfast 3D Printing Yields Tiny Racecar, Church, Bridges

80beatsBy Veronique GreenwoodMarch 14, 2012 8:23 PM

Newsletter

Sign up for our email newsletter for the latest science news

3D_Indy-600.jpg

This tiny speed racer measures 285 microns long and was 3D printed using a new technique developed at Vienna University of Technology

. The printer pumps out thin lines and layers of resin, which harden when hit with a pair of photons from a laser, a kind of 3D printing called two-photon lithography. By adjusting the way the laser is produced and tweaking the formula for the resin, the team managed to make the hardening process much faster, so that what used to take hours can now take seconds. The printer can now shoot out five-meters' worth of resin---in an extremely fine line, of course---per second. Conventional 3D printers of this sort, on the other hand, produce in millimeters per second. You can watch the racecar being made here: http://youtu.be/5y0j191H0kY To strut their printer's stuff, the team also made miniature models of a church in Vienna and a local bridge:

church.jpg
bridge.jpg
bridgedetail.jpg

Images courtesy of Klaus Cicha / Vienna University of Technology

2 Free Articles Left

Want it all? Get unlimited access when you subscribe.

Subscribe

Already a subscriber? Register or Log In

Want unlimited access?

Subscribe today and save 70%

Subscribe

Already a subscriber? Register or Log In