This cam was made for a DC motor with a 2mm shaft.
Overview and Background
Discuss the concept of movement and balance. Show what needs to be done. Contact me for the lesson plan.
Lesson Plan and Activity
Design a bot that will draw.
With a DC motor, the Cam, battery clip, 3 markers and some adhesive (and any decorations you've got) they need to build a balanced robot that will draw.
Cams not added in this image... it was designed after.
hot glue and gun
any decorations (stickers etc)