Day 31

Morning
I finished the theory of operation document for EBW2 and EBW3. I tried my best to only describe what the program is doing, rather than how it does it. With any luck, that SLC 150 will be replaced and all of the how will change to a more modern setup. After I completed that, I started looking at EBW1. I hoped it would be the same program. I was wrong. I went through that program and deciphered it. There were some modifications that weren't in the drawing, so I had to find what those do.

Afternoon
I began the hunt for the two updates to the program. I started looking at drawings in the system. Nothing showed any of these modifications. I then moved to looking at the actual welder for some clues. Not much help there. Finally, I went to the electric shop and found a print with the hand drawn updates from 2001. I copied those down. I'll need to write up another theory of operation doc for 1, but I think EBW5 is similar in design, so I want to get that program. Jim needs a few updates for my stirring coil prints, and he also wants a box drawn up for the Old Bliss Press meeting on Wednesday.