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The world's 'first 3D pen' or just a toy?

6 September 2013 Last updated at 15:47 BST

The creator of 3Doodler claims that the device is the "world's first 3D drawing pen".

The pen, according to Mac Bogue, can provide an "introduction" or "companion" to 3D printing.

Mr Bogue demonstrated the pen to Technology correspondent Rory Cellan-Jones at Berlin's IFA trade show.

Video producer: Tom Beal

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