Been making some progress on the clock. First a pic, then I will bloviate a bit.
Complicated device, that is for sure. It sort of works at this point. There is a rough spot in the gear train, I know where it is so I have been tuning it in slowly but surely. That is the good news. The bad news is that I am having difficulty understanding the assembly of the gears that control the minute and hour hand. Specifically, which ones are fixed together. Time to study the PDF some more.
Mr. Law (designer of the clock) does not seem to be a man of many words. The assembly instructions are pretty much pictorial. In a way, that makes it more fun because it is sort of like solving a puzzle.
When I started this project I was hesitant to modify anything at all. It was just complicated enough that studying it only scratched the surface of how these things go together. Now that I have been assembling it, there are definitely places where it could be simplified a bit. An example of this is the mounting of the bearings. They are just through holes with the bearings pressed in them. Of course the backside needs to be plugged up. On the cnc it would be easier to just drill a clearance hole for the shaft and a counter bore to depth for the bearing. Instead I have to make a bunch of very small little plug things. Then the question becomes, to glue or not to glue?
One of the really handy things that Mr. Law supplied was the STEP files. He did a great job creating them. One can scroll through the hierarchy and start figuring out how it all goes together. Or, one can discover that he made a change on the STEP drawing but did not update the DXF files. I have a part that does not go anywhere,
That involved a bit of head scratching! There were some other minor bumps, but nothing serious, all in all, he did a really great job.
Notice that the clock is mounted to a riser jig on my bench. This is not like putting together one of those dinosaur cut out things. There has been quite a bit assembly/disassembly required to get things fitting just right (which they still are not). That jig makes life much easier. Well, tomorrow I will see if I can sort out the hour/minute hand thing. May require several cups of coffee.