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News Link • Robots and Artificial Intelligence

Japanese model enthusiast builds paper robot powered by elastic bands

•, By Adam Williams
 Judging from the intricate nature of the design which is visible in the photos, the PR-III appears to be a labor of love, and has been painstakingly constructed almost entirely from paper, with the addition of a few wooden shafts serving to increase overall and drive the “engine” – a series of paper cogs and elastic bands which are wound up to set the PR-III walking.
Detailing the construction of the PR-III, its designer explains that it was difficult to get the balance right, though the desired poise was eventually achieved after several redesigns through trial and error. The PR-III's legs are powered forward by a crank attached to a two-stage gear which decelerates the speed of revolution that is initially gained from the wound-up elastic band mechanism to a more manageable rate.
If you'd like to build your own PR-III, it is available as a self-assembly kit for ¥3000 (roughly US$40), plus shipping. However, be aware that you'll be required to surmount the challenge of navigating a non-English website in order to arrange purchase and delivery.

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