Now I have to dismantle the extruder and test my leak backup fix. And I was just thinking how nice it was that the extruder worked the first time on my first build with a customized design, I know how it is leaking though and I gambled on the design that the plastic would not make it that far at that viscosity. I was wrong, it needed a seal. Some silicone should work inside. But that will be a pain to get it all apart now.