I realise of course that solid wood clocks do have a long history, and there are examples out there that are still functional even though they are hundreds of years old, but it is the use of plywood that allows us to make filigree skeletal clocks.You can of course make your own plywood, but that is a discussion on its own.
The plywood I use for cogs, pinions etc. is aviation grade birch, it is tego film bonded and generally has 2 plies to 1 mm. It has grade A faces and and is just a superior product. It is not cheap, but if you are going to the trouble of building a clock why not go for the best.
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