Hello all. I have been away from the forum for many years and just coming back to see what's going on.
Ages ago I had picked up a Gaggia OWC (predecessor to the Classic) that has a larger boiler but several fatal flaws that prevented it from making decent espresso. I made several posts with pictures and videos of the various mods I was doing - and the mods improved things tremendously. But back then I had no experience with PID at all - and instead I was just mounting an inexpensive digital thermometer to the boiler so I could manually manage the temp swings and get fairly consistent shot temps.
The other day, I got interested again and pulled out the old OWC machines (I have three of them - yikes) and I noticed how inexpensive PID kits are these days. So I put a PID on the OWC and - WOW - once the PID self learned things it is so easy to get consistent shot temps now. The OWC has a much larger boiler than the Classic - so you don't have the drastic temp drop during the shot - and it recovers pretty quickly for a second/third shot since it's a much smaller portion of the boiler capacity that gets replaced with cold water during a shot.
Since I'm a total newbie to PID ... I searched the forum for info on how to tweak the parameters ... and searching returned just too much non-pertinent info so I'm hoping someone here can give me a quick "how to" or a list of ideal settings for PID parameters.
I have the Inkbird ITC100HV