Build, turn, and watch science in motion! This kit lets kids explore mechanical principles through a working grain crusher. By constructing the crusher, they see firsthand how a cam and follower system works: as the cam rotates, its shape pushes the follower up and down, converting rotary motion from the handle into linear motion that crushes the grains.

Project links: - Structures - Mechanical Systems & Control - Rotary to Linear Motion

Click here for downloadable PDF instructions.