-Solar Concentrator    -The Dish    -The Concentrator    -The Actuators    -The Electronics    -The Results  -Windmill  -CNC foam Cutter  -Hot Air Solar Collector  -Solar Greenhouse  -Tipi  -Pocket Ski-Doo  -Solar Shower  -Other Project  -My green acre  -Otherpower  -Redrock  -CNCZONE  -Phidgets  -Forno Bravo For the concentrator I am using an heater core from a car. I hope it won't melt.   I used a old heater core from a car, the heater melted.       This is a new design, 3/8" pipe rape. around 4" aluminium pipe.   Copyright � 2007 Backyard Solar