A slider crank mechanism is a simple, effective way to convert rotation to linear motion. You can make one very easily out of craft sticks or cardboard, a hole punch, and some paper fasteners.
By attaching the crank shaft stick to a servo motor horn, we can drive our slider crank using a Circuit Playground Express programmed with MakeCode!
In addition to the parts above, you'll need:
- corrugated cardboard box
- three craft sticks
- brass paper fasteners
You could build this entire project using only a pair of scissors, but here are some additional tools that can make things a bit easier:
- single hole punch
- hobby knife
- metal ruler
- hot melt glue gun and hot melt glue -- either low or high temperature is fine
- pencil or marker
- small screwdriver