Customized K'nex Motor: More Powerful and Faster

Tired of your knex motor draining your batteries? Try this instructable
learn how to make your knex motor faster and more powerful using a 3 volt adapter

Step 1: Materials

A Knex motor,
An adaptor with multiple voltage selector,
1 meter of wire,
scissors,
tape,
screwdriver

Step 2: Disassemble Your Motor

Step 3: Wiring

Step 4: Assemble

Step 5: Set Your Adaptor

Step 6: Testing