Just finished up making a "Home Depot Special" tempering oven from ducts and assorted parts. Got a little impatient waiting for my main oven to come down to tempering temperatures so made a quick oven out of what I could find walking the aisles of HD. I got a cheapie basic PID controller from Amazon that has no ramping etc:
http://www.amazon.com/gp/product/B0087O6S2A/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
So, all assembled and holding temperature nicely but it occurs to me that since it is only running about 400 degrees that maybe I could just get a mechanical appliance timer to manage the temper cycle? 400 for 2 hours, 1 hour off, 400 2 hours kind of thing? Is it ok to oven cool between and after tempering cycles or is it somehow better to cool quicker outside or in water between? Tested the PID and it will in fact come on at power up and start maintaining temperature with no intervention on my behalf. Aside from the obvious unattended oven risk does this make sense?
http://www.amazon.com/gp/product/B0087O6S2A/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
So, all assembled and holding temperature nicely but it occurs to me that since it is only running about 400 degrees that maybe I could just get a mechanical appliance timer to manage the temper cycle? 400 for 2 hours, 1 hour off, 400 2 hours kind of thing? Is it ok to oven cool between and after tempering cycles or is it somehow better to cool quicker outside or in water between? Tested the PID and it will in fact come on at power up and start maintaining temperature with no intervention on my behalf. Aside from the obvious unattended oven risk does this make sense?
