The powerless, waterless precision clock is finished.
The heart is the oscillator array:
connected on the level below like this:
The Trinity Clock only uses the signals of the northern pressure plates of the three circuits on the left of the screen. The fourth array is just for laughs, so i can boast about a 'quad-core' machine.
Each circuit makes a full round in 720 steps and the three Clock oscillators were started 240 steps apart, so there's a signal every 240 steps, reliably and constantly. These signals are counted and thus converted into a day cycle by this clusterfuck:
I had accidentally built it directly underneath an older counter array, so carefully avoided possible locations of 'falling' minecarts. Unfortunately, this totally messed up the accuracy of the converter - there's an annoyingly large bandwidth of latencies between incoming and outgoing signals, in one case possible a full dwarf hour. Sort of negates the effort i spent calibrating the loops for generating hourly signals. And of course i only found out about it after starting the machinery, by which time building a better converter would've also required stopping the main oscillators to connect them there, which is kinda difficult when working with perpetual motion and with no off switches installed. At least it misses no signals and translates the precise base ticks into precise days.
And of course, it has a clock face:
With a simple season - month - week - day calendar underneath. So it's the 13th of felsite, 11 o'clock(ish) Drownedgears local time (the mountainhome calendar switches days at 19h, the local calendar at 22h).
Of course, we're also keeping track of the year, and the clock will only wrap around in the year 10 000. To count that high, we of course need lots of track circuits with lots of ramps underneath. _Lots_ of ramps:
Of course, no-one knows if the clock actually _will_ wrap around, because at the 10 000 year mark, a pressure plate will be activated which collapses a support constructed on the very top of the map. The adults of course remember the construction of it (and the spontaneous cave-in that happened when it was finished), but they've started telling the children that the pillar holds up the sky and the sky will come crashing down should it ever crumble.