Back working on the train elevator after a pause. Rebuilt the connecting track to improve alignment -- the prior arrangement needed some fiddling when the layout had to be moved. This one doesn't.

The two key parts of this design are the locator pins and the vertical alignment finger on the left. These mate with the elevator side as:

The plywood supporting the track rotates a bit on the left hand side -- this made alignment of the two pieces much less exciting when shoving the layout into place. The spring on the right side maintains pressure on the connection. The two brass alignment sockets mate with the pins on the other side -- they are drilled into a piece of high molecular weight poly from Lee Valley (used for jig construction). After some trial and error I found that drilling the holes through from one side and then cutting it in two was the only way I could get the mating holes exactly aligned. The brass components are gently tapped into place. Spring tension on the curved track tends to make the end want to straighten out -- I am using half of a rerailer for the connection. Barely visible on the back side of the track is an alignment screw that permits me to adjust the position of the rails to match the track on the elevator shelves if need be. Seasonal changes does cause these parts to shift slightly over time.

The final part of the elevator to be completed is the connection between microswitches on the elevator that close to show what shelf is in position -- these operate a 10 LED bar graph on the control panel.

At the far right can be seen the position follower that depresses the microswitches for shelf position. To the left of the junction box for these connections is a small secondary control panel with duplicate switches to operate the elevator -- these are wired in parallel with the controls on the main panel. The large black cable goes to a custom connector made with Anderson power-poles that brings track power to the elevator and a breakable connection to the control panel switches that operate the elevator. The ribbon cable to the LED bar graph is not shown. The secondary control panel simplifies maintenance operations on the elevator -- which can only be done when the main layout is pulled away from the wall.