what size teeth on wooden gears

**nine fingers** · 13th January 2009, 08:06 PM

Hi to wooden gear clock makers. Most wooden geared clocks have a Diametral pitch of 11 or 13, which gives a resonably sized tooth which can be cut on a scroll saw. Has anyone tried a bigger pitch (smaller tooth) on any type of wood, to enable a smaller clock to be made.
I'm experimiting with smaller teeth and a 100 beat per minute clock ,maybe it will work or I will have a heap of stripped gears.

regards John.

**fatih** · 22nd January 2009, 06:22 AM

Hi !
I think you can cut small diameter wooden gear if you use old and very dry hornbeam timber with very high speed borer machine . I used to 10 years old hornbeam.

**Hobbyhorse** · 22nd January 2009, 05:00 PM

John on the verge and foliot clock that I recently completed the wheels had a diametrical pitch of 16. I made the wheel out of segments of an NZ timber called Tawa and it was not too difficult to cut on a scrollsaw. I have just checked the plans for the wheels on Clayton Boyers clock "Lolli" and they are at 13.

Regards,
Rhys

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