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Old 01-14-2008, 11:21 PM   #1
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shaping wood


how can i shape a 2x4 stud from the orignal (top right) to the shape on the bottom right. what tools would i need?
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Old 01-15-2008, 01:13 AM   #2
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1) What tools do you own and are experienced and comfortable with?
2) How long does the finished board need to be?
3) What's the radius of the curve and the depth at center?
4) What's the purpose of this piece?



I assume we're looking at the end grain?

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Last edited by ratherbefishin'; 01-15-2008 at 01:16 AM.
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Old 01-15-2008, 01:19 AM   #3
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1) I own nearly nothing
2) it doesn't have to be too finished, i just need it to hug around a circular pillar I have
3) not sure of the radius
4) 2 sorta answers it

got any tools in mind?
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Old 01-15-2008, 07:46 AM   #4
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You need a tablesaw for this. Do a google search for cove cut on tablesaw. Basically you clamp two fences diagonally across the table, and run the workpiece diagonally across the running sawblade. Start with the blade exposed 1/8", and raise it 1/8" after each pass until you've reached the desired depth.
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Old 01-15-2008, 05:48 PM   #5
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Would this pillar by any chance be a 4" post in the basement?
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Old 01-15-2008, 07:13 PM   #6
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I'd probably hog most of it out with a dado blade in a table saw, then use a convex spokeshave to clean out the remainder.
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Old 01-15-2008, 08:13 PM   #7
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A suggestion for the "don't have the tooling budget hack job", but have some time......

Using just a powered circular saw:

Determine depth at center of the curve and set blade for that depth
Make a line down the center of the 2x4.
make 2 cuts down the length of the board just to the right and left of the line. leave about an 1/8" (max) of wood (with the line on it) between the cuts.
Reset the blade for a slightly shallower cut and make two more cuts moving outward from the center.
continue out to the edges of the board making progressing shallower cuts.
The closer together the cuts the easier the next step......

Take a hammer and hit the newly cut "fins" at an angle....they will break right off. A little more clean up will be needed with a hammer along the length of the 2x4.

It's not pretty, but (assuming it's one or two boards) it's a quick and dirty method with basic tools.
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Old 01-16-2008, 12:04 AM   #8
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First choice would be Nate's method, second would be Steve1234's.........
If you have no tools, go to the home center & buy a convex pillar, or get 1X boards & build a box to go around the post.
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Old 01-16-2008, 01:19 AM   #9
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I think Steve's method would work, but would be no more accurate (and quite a bit more time-consuming) than ripping the board at a bevel, from both edges with a circular saw. Stand the board on edge, bevel the saw, and cut right along the corner. You'll remove a V. It won't be the pretty curve you drew, but it'll get the 2x4 up against the post.

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