Still a work in progress(May 1st 24). Made from 2 $20 toaster ovens. Built an insulated chamber to decrease the area and thermal mass, put in all 4 heating elements. Lots of power and can push a 5 deg per second temperature rise. I started with the tiny reflow controller on github and got carried away.

All the details are on the github link. I'm not a programmer, so feel free to criticize the code. I actually learned more from the tiny reflow controller code than I knew before.