There are teething problems. I was a bit cavalier with the mould after about two hours, and my tilt test caused a thin vertical crust to form on one side of the resin. I was also very messy during potting so the wires are coated in resin making it hard to make a reliable electrical contact. It’s been a tiring day so I’ll leave it like that, but tomorrow I’ll sand the surplus resin away and give it a good test. For now I’ve just about managed to read the resistance as 990 ohms. Maybe it’s a 1K, maybe it’s not. I’m colour blind but maybe some of you can tell.
Another thing to do during potting: protect all electrical leads into and out of the mignon from resin.