Corner cupboard adventures not going well
Bill Tindall, E.Tn.
Never made anything like this structure. It's not going well likely because I am not approaching it correctly. Maybe I am discovering why these things are usually nailed together.
I like to glue up case pieces as a unit. With all the joints assembled if something is not quite right I can coax parts into alignment and square while the glue is not yet cured.
I dry fit the framing parts for the corner cupboard bottom unit- top, bottom, posts and back. The opening for the doors is not square, as "revealed" by a framing square.
After much fiddling I discovered a tiny drop of dried glue on one blade of the square. After removing this problem the opening was more square but not good enough. Then I discovered the bottom that I was squaring off from had a slight hump that got there somehow. With this hand planed away things got better but still not acceptable. Screw the square and its problems, out came the trammel, a means of determining square the depends on measuring diagonals and not depending on a flat surface of the square or what the square is up against.
Better but not acceptable. It is not fatally flawed but enough to make door fitting down the road aggravating. The problem is there are no surfaces on this thing to engage clamps to pull the pieces into submission.
Unlike a chest of drawers where drawer have to fit in the case, the only critical part of this thing is the opening for the doors. So, I intend to just assemble the front frame and get it square. Then I will fit frame to top and bottom and back and force these parts into submission and hope the front frame is robust enough to stay square.