It was going great! I was confidently soldering socket after socket onto the lazy Susan, using a temporary pin to align them with the fixed tube. It was going so well, in fact, that I thought I might get on to soldering up the electrical connections tonight.
Well, not so fast. When I had soldered all eight sockets into place, I turned the baseboard over and tested them. They should work, right? I mean, I had clamped the turntable in alignment, and soldered the sockets with the pin driven into them. Then releasing the clamp leaves the turntable aligned. So far so good. But then I tested some other tracks, and then came back, and driving the pin into the socket doesn’t align the turntable.
Now, if it were off by a smidge, I could understand. But it’s off by a lot! So there is clearly something here that is beyond my comprehension. The misalignment seems to be related with knocking one of the sockets against my temporary clamp (a screw), which I have done several times. It really seems like something is moving, and I guess I shall have to figure out what it is.