Paper used in this video: 12 sheets of 8.2cm squares, card stock (300gsm)
Finished model: diameter of approx. 9cm
This video describes how to fold an origami "Jump" model designed by Hans-Werner Guth. Hans-Werner kindly gave me permission to make this video accessible to you.
Hans-Werner's gallery: http://picasaweb.google.com/hwguth/
Photo diagrams for this model: http://picasaweb.google.com/hwguth/AnleitungJumpModul#
More origami: http://www.happyfolding.com