Trying this in a slightly higher resolution; apologies for amateurish camera work; trying to get my head around it. Here we can see pretty much everything. The smoker is turned off here, as we generally only want to activate it sporadically to save fluid. Annoyingly enough, as I was panning onto the spiral I noticed the train that is supposed to traverse it was stuck in the station; it happens every now and then & you have to nudge it to get it going again. Still, I will persevere with this. (less info)