A new edition of Walter Ruffler’s book.
The book contains 24 pages of theory and 14 construction kits. 8 of the construction kits are for individual mechanical principles, and 6 of the kits are to make paper automata. Great value, and a wonderful set for teaching aids.
Not in stock but please check our books page.
Included kits:
1. Crank Slider
2. Oscillating Lever
3. Friction Transfer
4. Meshing Gearwheels
5. Ratchet
6. Cams & Friction wheel
7. Cam & Pushrod
8. Cam & Lever
9. Happy Birthday
10. At the Duck’s Pond
11. Pyramid Lifter
12. The Weight of Bureaucracy
13. Pianist
14. GymnastPaperback
Not in stock but please check our books page.