Casting with a PID Controller

[TexasMac]

Newer gadgets and techniques are usually quicker and easier, but I don't believe they are always better. A case in point is the thermostatically equipped electric pot versus the propane heated fish cooker and cast iron pot. The reason I say this is that the thermostat cycles on and off to maintain an even temperature and the temperature of the melt has to drop several degrees to cause the thermostat to re engage the power. This means the melt is constantly changing temperature up and down with an electric pot.

I definitely agree and that's why a PID is a benefit. It cycles the power on and off at a relatively high cycle rate (about 1 second with my RCBS pot), adjusting the power duty cycle & holding the alloy temp in my pot to less than +/- 5 degrees as I cast and lower the alloy level to 1/2 full or less.

Wayne