Build your own strip heater

Tools
What you need:


 * Wooden board
 * Constant resistance wire (I use 0.15mm diameter/about AWG35 with 28 Ω/m)
 * Two screws
 * Some extension cord wire
 * Power supply
 * Tin foil

Power supply
You can use various power supplies. As I had a spare ATX PC power supply, I used that one. To make this work, you have to pull the green wire on the mainboard to ground to let the PSU switch on. Beside that, its recommended by various howtos that you attach a device (as a HDD) to one of the connectors.



Build it

 * 1) Drive the two screws into the wood, about 160mm (a bit more than the width of the OpenROV body)apart.
 * 2) Fold the tinfoil a few times an place it in between (tape it down if needed).
 * 3) Wrap the resistance wire around one screw and solder the the extension cord wire to it.
 * 4) Wrap the resistance wire around the other screw but in a way that you can pull it straight later when it heated up
 * 5) Solder the other wire to the resistance wire
 * 6) Plug the two wires into the yellow and black pins of one of the connectors



Process
Follow the process as with the professional strip heater.