Last week I mentioned I would start taking smaller steps. Turns out to be a good strategy.
My small step is investigating the coil former’s outgassing.
I put the coil former into the chamber:
At first I had to troubleshoot a gross leak. By listening I traced the problem to the connection from pump to chamber:
The pump had shifted under the chamber and unseated the gasket:
I fixed this leak with a fresh gasket. Now I don’t hear any leaks.
The turbo pump spins up almost all the way:
Either I have a small quiet leak or the coil formers are outgassing like crazy.
I’m going to let the pump run overnight. If outgassing is the culprit it will abate with time.
Prometheus Fusion Perfection 