Weekly Project: Follow Me--the Mobile Beverage Cooler

Step 6 Don't Drink the Water

In the Jagdpanther kit, there is a step or shelf behind the non-movable turret that will hold one 12-ounce beverage can. Either attach an insulated cup holder with your drink or create a can chiller from a Peltier Junction.

There are a couple of safety points to consider when using the Peltier Junction circuit. First and foremost; watch out for excessive heat buildup. This heat can come from both the circuit's heat sink, as well as from current drawn through the battery power source. Make sure that both of these heat sources are insulated from the plastic parts of the tank kit and PIR sensors.

Another point to remember with this chilling circuit is to ensure that there is direct contact between the can and the cool side of the Peltier Junction. There's nothing worse than having a drink caddy follow you around all day with a drink that is too warm to drink.