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How to make a ball bearing rollercoaster
04-14-2010, 09:42 AM
Post: #1
Deven Offline
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How to make a ball bearing rollercoaster
Pretty Cool.

Click image for for build instructions.[Via Instructables]
[Image: How-to-make-a-ball-bearing-rollercoaster.jpg]
OOoooOo ...sparks!
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