@West Side Joe great mechanical engineering job.
The "kids" today use modeling software to design and do a virtual build so that they will be reasonably certain the extenders will operate as expected. What modeling software did you use? What control software are you using?
Second - if I did this - I would forget the platforms were extended and have the cars leave the station. What would/will happen if you also forget to retract the platforms?
I have really enjoyed following your sojourn in subway modeling. Thanks for documenting and sharing. Jeff