Creating 4" to 6" round concave depressions in a wood plank. - Router Forums
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post #1 of 15 (permalink) Old 01-13-2012, 01:00 PM Thread Starter
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Default Creating 4" to 6" round concave depressions in a wood plank.

I'm trying to figure out how to make shallow concave bowls in the middle of a board. Any ideas?
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post #2 of 15 (permalink) Old 01-13-2012, 03:26 PM
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hi




"It's fine to disagree with other members as long as you respect their opinions"

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post #3 of 15 (permalink) Old 01-13-2012, 04:30 PM
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Do you have a lathe?

James
Whittier, CA.

Have a nice & safe day!
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post #4 of 15 (permalink) Old 01-13-2012, 04:57 PM
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Hey, Nick; greetings! Do you have Lee Valley Tool access down there?
Kutzall Sanding/Carving Disc - Lee Valley Tools
Pg 87 0f their 2011 online catalogue has a few other options for high speed grinders.
The chain saw circlet looks interesting. I've been meaning to get one...just haven't found a good enough excuse.
Cheers,
-Dan
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post #5 of 15 (permalink) Old 01-14-2012, 04:49 AM
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Hi Nick, you might get some ideas from this previous thread on a similar topic.
http://www.routerforums.com/router-b...its-there.html

By the way, is your surname Croatian ?
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post #6 of 15 (permalink) Old 01-16-2012, 10:56 AM Thread Starter
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This looks interesting. I was thinking more along the lines of large router bit that would plunge cut this shape. Doesn't look like theres anything like this out there. The tool you referred would definately work but would be a freehand operation and I need to replicate this cut multiple times with accuracy. I might give it a try. Thanks for the input.
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post #7 of 15 (permalink) Old 01-16-2012, 10:59 AM Thread Starter
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Yes. Second generation American. Grandparents immigrated just after WW1.
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post #8 of 15 (permalink) Old 01-16-2012, 11:14 AM
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How about giving us some dimensions.

What size is the board - Length, width, thickness?
What size and depth will the "shallow concave bowls" be?
What is the position of these bowls in the board?
How accurate does the shape of the bowls need to be?

A lot of what we suggest will depend on this information.

Charley
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post #9 of 15 (permalink) Old 01-16-2012, 12:34 PM
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Nick; this may be exactly what you're looking for...
Building the 3-D pantograph - YouTube
Of course you still need the first one as a pattern.
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post #10 of 15 (permalink) Old 01-16-2012, 12:42 PM
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Coincidentally, there's another thread running with a lot more info!
http://www.routerforums.com/jigs-fix...antograph.html
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