Knex Motor Modification

Are you having the red battery motor of knex and are tired of changing batteries all the time? This is the solution! With this you modify the motors to ones to be plugged in!

First gather the materials.

First you preper the cable.

Now you unscrew the motor. You just need that red half.

Veary simple, just screwing a hole.

Soldering gun

After you made this step you'll have to put 3Volt on the other end of the cable. Polarity is irrelevant because it still goes through the switch.