I guess I had kept the panels a bit too ling on top of the warm transformer. In an attempt to rectify it, I smeared some water over the cupping side and placed all the panels under a large battery (100 Lbs) to flatten them.
So far it looks like it is a bit of a success.
I planed the six thin panels that I have glued up, and they ended up reasonably flat and consistent.
Planing is one of the most difficult things to do in this small shop. The workbench is technically too high and it is also a bit short, but as long as take a small break once in a while I get by. It is hard to get my body weight over the plane, so it is not a textbook example on how to plane.
The good thing about it is that spruce smells nice when planed, and I learn to accept a surface that isn't 100 % perfect. And I also appreciate the fact that I have a joiner/planer at home that makes jobs like this easy and fast.
Even when all the boards aren't exactly the same, it is possible to accommodate it in a build. And especially if you use hand tools. E.g. if you need to make a bunch of dadoes for the dividers.
If you use a router with a bit, all your dividers need to be the exact same thickness or there will be problems with the dividers not fitting in, or fitting sloppy.
If on the other hand you are using hand tools, each dado can be custom made to the exact thickness of the divider, Even if the divider is thick in the front and thin in the back, you can just make a tapering dado. You just need to remember to mark out which piece will go where.
Today I planed the thicker panels that are going to be the top, bottom and sides for the carcase itself.
When I glued those up I wanted to make each side a bookmatched pair. So I just flipped them over and forgot that by doing so I would alternate the growth rings.
So where the thin dividers planed effortlessly, the thick panels didn't..
I had to go as close to the middle ofthe panel as I could - and then turn it around and plane from the other side to avoid tear out. The surfaces are less than perfect, but they are reasonably flat. I guess I'll have to try to sand my way out of this once I am done.
New low-point in picture uploading, 35 minutes for one lousy picture.
Planing set up, notice the limited space to start the plane.