|
RE: Casting with a PID Controller
Today was casting day and my pot is set up with a PID controller that I assembled from parts purchased at Amazon. Note the Lee pot controller is bi-passed in this case (connect existing wires inside Lee box). So now using the PID is only way with this pot. I did wire controller to correctly rated Duplex electrical outlet in separate box. This allows plugging different units in at separate times to use controller/thermocouple with those. The descriptive article shows and discusses the details and I concur. In my case the PID controller turned the less expensive Lee 20# pot into a viable ladle casting outfit. The plus side is you can extract higher controlled melt temperatures using the PID. Lee melting pots are controlled by a Bi Metal temperature switch that is remote from the melt. The PID reads direct with thermocouple in melt. So when fresh alloy is added to pot or sprews you can watch the temperature recover to casting level. With this method the melt temp does not run over causing a wait in production. Recovery in faster due to the electronic controllers. BTW I was running two 530 gr. 45 cal. molds so adding alloy came about often.
Aside having the PID controlling an outlet box allows setting up a small French fry cooking appliance to melt but not burn my Bees Wax boolet lube mixtures. This does preclude sharing cooking utensils with the kitchen staff. However the boolet lube turns out just fine out in the garage.
|