Some progress.

The nine levers have been cut from 2mm brass. The other parts are fabricated from tube and section. I used a pair of buffer springs to assist gravity on the stop block to give a positive feel to the action.

The frame made up from silhouette cut styrene, 3 ply. It will become stiffer as more is added but tests show that it is heading in the right direction. I chose a spacing of 15 mm for the levers. That gives about 28 mm as a gap for moving a lever; my thumb is 24 mm wide. Feels about right.

Microswitches in place, the spacers are actually old meccano nuts, slightly thinned.

This is a locking bar. The captive pin arrangement allows them to be removed.

Test assembly with the locking in place. It isn’t as comprehensive as a full locking system, but it does prevent the point levers being moved until the signals are properly set. The overlap is such that the microswitches will not trigger until a lever is properly unlocked, I think in practice there would be more, possibly a fpl on the point leading to the sidings since it could be worked both ways. I will also have some electrical locking for the ground signals. Certainly signalling was simpler in the early days, more complications as time went on.

A pic  of the front. I will add a front sheet and some beading.

Next stage, take it to bits and do some painting.