Well, it's done. The controller now plays (mostly) nice over the network and allows me to browse folders, upload & download files, and read status information over the network. It makes it a lot easier to manage what's on the SD card. No more grabbing a screwdriver when I need to fiddle with a text file!

Of course, one of the other members at the makerspace thinks I'm just gilding the lily at this point, but I still disagree ;)

The next step will definitely be to fix the insulation, as repeated use of the oven is showing that the electronics bay is overheating too easily and the system is shutting down on thermal safety. Not much fun when you're halfway through a reflow and the controller aborts the run because it's too hot.