Building a clock with inserts

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Forum topic by Ripthorn posted 10-18-2010 02:21 AM 1116 views 0 times favorited 1 reply Add to Favorites Watch
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1458 posts in 2984 days

10-18-2010 02:21 AM

Several years ago I build my mom a clock for her birthday from paduak and used a nice looking insert in it. The mounting hole was 2 1/8” and the outside diameter was somewhere in the 3 1/2 – 4 inch range. I decided to build one for my wife and built the same specs and all. But now when I go looking for clock inserts, I don’t see any that mount in the 2 1/8” hole that have an outside diameter that large. Like an idiot, I drilled the hole before buying the clockworks, assuming that I would just buy the same insert that I bought the last time. So my question is this: Does anyone know of a place that supplies inserts with the same mounting hole size and outer diameter?

I found one place that offers the right outer diameter, but it needs a 2 3/16” mounting hole. I could get that and try to enlarge the hole, however, I don’t have a 2 3/16” bit and plugging a 2 1/8” hole does not sound easy. Any ideas? What would you do in this situation?

-- Brian T. - Exact science is not an exact science

1 reply so far

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118 posts in 2923 days

#1 posted 10-18-2010 01:50 PM

Sounds to me like you could use a hand held drill with a drum sander chucked in it or in a drill press. Just go round and round a number of times with gentle pressure i and you’ll get to 2 3/16 in no time. If the hole ends up a little off center you really won’t notice it. Another way might be to cut a square block of wood where the diagonal is slightly larger than the diameter of the hole and tap it into the hole. Now you have a new place to start the center of your 2 3/16 bit. Just make sure you drill slowly.

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