Measuring and Marking a radial thickness for rings

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Forum topic by Lentze posted 12-12-2013 09:19 PM 837 views 0 times favorited 5 replies Add to Favorites Watch
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14 posts in 1648 days

12-12-2013 09:19 PM

Topic tags/keywords: marking measuring measure ring thickness gauge


I am wondering if anyone knows of a gauge of some sort that can help me with my wood rings.

I need to measure a certain thickness and mark it on the wood ring in a circle so I know how far to sand.

Basically – I drill the inner hole, use a hole cutter and cut the outer circumference, then I need to sand the outer circumference down closer to the inner circumference. The last part needs to be exact so I am just looking for a way to scribe a line on the wood. A similar idea as the rolling marking gauges, but a bit different.

5 replies so far

View Danpaddles's profile


573 posts in 2306 days

#1 posted 12-12-2013 09:36 PM

A compass? Or am I missing something here?

-- Dan V. in Indy

View Lentze's profile


14 posts in 1648 days

#2 posted 12-12-2013 10:10 PM

Yes – just like a compass – but instead of a needle on the stationary end, maybe a roller or something to help guide it along the inner circumference.

I tried a regular compass and it was too hard not to let the angle it was held at interfere with the line drawn. I need a steadier way to get it to mark.

View JustJoe's profile


1554 posts in 2033 days

#3 posted 12-12-2013 10:36 PM

trammels or a beam compass would be better than a regular compass. They sit close to the surface and it doesn’t matter if you get limp-wristed.
Something like this,42936

But if you look around your workshop or google a bit you’ll figure a way to make your own for a lot cheaper.

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View Lentze's profile


14 posts in 1648 days

#4 posted 12-12-2013 11:48 PM

Thanks! Yep – probably something like a trammel, but for very small rings.

View tomd's profile


2155 posts in 3765 days

#5 posted 12-13-2013 12:10 AM

Why not use a compass before you cut out the middle ?

-- Tom D

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