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Picture of Knex and Origami Flapping Bird Automata

This Knex automata is based on a scotch yoke mechanism which is being used to operate Randlett's flapping bird. You can also use this to operate other moving origami pieces that are operated by pushing and pulling on the origami construction.

You can learn more about a scotch yoke at

Instructions on folding Randlett's flapping bird can be easily found on Youtube or in the book "Origami in Action" by Robert Lang. The bird for this project is folded from a 7" square.

Let me know what you think in the comments below and I hope you build it! Also check out my "Year of the Pig" origami automata at

Step 1: Here Are the Parts You Need

Picture of Here Are the Parts You Need
jessyratfink7 months ago
This is fantastic! Small specialized machines are the best.