Build Your Own Remotely Operated Vehicle
Step 17
Wrap the entire collection of cords in several layers of electrical tape to ensure that the area is waterproof.

Using the hot glue gun, apply a bit of glue to the end of the tether where the motor wires enter the electrical tape tube. This will waterproof the entrance of these wires.

Secure a zip tie to the tube just below the entrance as shown.

