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MAKE Magazine

• 

  Build a ball-bearing roller coaster

  Posted: March 16th, 2010, 3:00am MDT

  Check out this excellent instructable that shows you how to bend mains wire into a roller coaster track for a ball bearing.

  More:

  • How ball bearings are made
  • HOW TO - Make a ball bearing trampoline game
  • Right on Track - Rolling Ball Sculpture

  Read more | Permalink | Comments | Read more articles in Instructables | Digg this!