A number of years ago I fabricated PID controllers for some members lead pots. (I hope that they are all working . . . mine is.) I didn't do it to make a profit because I really did it just to sort of pay it forward for the many questions I may have from others. I'm thinking of doing that again but . . . I just can't do it anywhere near what I did previously. I also make a lubersizer heater for those with a Lyman #45, Lyman 450 or a RCBS lubersizer with a variable heat control ( basically a rheostat or it can be tied to a PID controller. It consists of a 3/4" x 4" x 4" aluminum flat bar with a 40W, 3/8" x 1 1/2" cartridge heater insrteted in it coupled with a junction box with a rheostat. So . . . I'm just putting this out there to see if there is any interest.
If someone else had of done to me what I did to myself . . . I'd have killed him. Humility is an asset. Heh - heh.