FAQ

What are the difficulty levels for each module?

Difficulty levels generally match the amount of time to assemble.

(1: beginner,  2: beginner-intermediate,  3: intermediate,  4: intermediate-challenging,  5: challenging,  6: very challenging)

1 2 3 4 5 6
up-down/crank up-down/cam
open-close/cam
open-close/crank
rotating/spur
flapping/spur
up-down/rack-pinion 1 (180° servo)

open-close/rack-pinion 1 (180° servo)

up-down/rack-pinion 2 (continuous servo)

rotating/planetary

open-close/rack-pinion 2 (continuous servo) walking/jansen

What can I build with one motor?  two motors?  etc.?

1 X 180° servo 1 X continuous rotation servo 2 X continuous rotation servo

(or 1 X gearbox motor)

Up-Down/Rack-Pinion 1 Up-Down/Rack-Pinion 2 Walking/Jansen Mechanism
Open-Close/Rack-Pinion 1 Open-Close/Rack-Pinion 2
Up-Down/Cam
Up-Down/Crank
Open-Close/Cam
Open-Close/Crank
Flapping/Spur
Rotating/Spur
Rotating/Planetary

What kinds of paper do you suggest to use?

http://www.papermech.net/materials-paper/

Do we need to use particular craft tools?

http://www.papermech.net/tutorial-3/

How can we control servo motors and where can we learn?

http://www.papermech.net/electronics-motors-and-a-controller/