[djrogers]

It occurs to one that elevator doors are every bit as complex as what you ecan scribe and have been doing their job for over half a century at a cost of far less than that.

But really, you don't even need a door - a simple gate like on a ride at Disneyland, or heck even the gates at the station entrance would do nicely.

[astrodust]

Not many elevators have 48 doors, and those that do cost a shit-ton more than a million dollars.