Hi all,   I made some progress today on the programming of the Arduino, but I'm still not there. Got fed up with it this afternoon, but I thought you may like a couple of photos.   First is obviously the thing itself, I want to do a bit more on the well, particularly the brick wall, and add the raised bricks that the enginemen would have pushed against, and tidy up a few bits & pieces, particularly the big hole that you can just see in one corner, where the non-stepper motor used to be.