CreoPop 3D Pen Draws In Midair

CreoPop 3D pen lets you print in mid-air.


(CreoPop 3D pen)

A team of developers from Tomsk – Siberia's oldest scientific and innovation center – has created a 3D pen that uses photopolymer ink that hardens under the influence of an inbuilt UV source in the form of a bright LED diode.

Developed on the basis of liquid photosensitive resin, the ink allows the pen to avoid the major drawback of its analogs - heat - making it safe for children. Using such a pen, one can draw three-dimensional objects, create magnetic, glow-in-the-dark shapes and use it for 3D design and in metallurgy.

Roughly 35 countries have already taken interest in the new device, which will hit the market in April 2015.

The earliest sf reference that I know of for creating a 3D object with a penlike device is from Things Pass By, a 1945 story by Murray Leinster:

It makes drawings in the air following drawings it scans with photo-cells. But plastic comes out of the end of the drawing arm and hardens as it comes. This thing will start at one end of a ship or a house and build it complete to the other end, following drawings only.
(Read more about Leinster's Plastic Constructor)

Via rbth.

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