Corner rounding question

[Tom Henderson2]

Good morning everyone.

I'm a newb, so please forgive what is probably a pretty elementary question.

I'm making a cutting board, and have routed a gravy trough around the perimeter. The edges of the trough are sharp, and I'd like to round them over to a 1/8" radius or thereabouts.

What is the best way to do that? A roundover bit won't work as it won't fit down into the trough. Hand sanding is unattractive since it will take a looooooong time.

Any suggestions?

The cutting board is hard maple, in a long-grain orientation.

Thanks in advance! I suspect hand sanding is my only choice, but thought I'd enquire before I just jump in.

-Tom H.

[Bill Wyko]

You might use a card scraper. I've learned that sometimes it just takes a little more time to get things like this right.

[Joe Scharle]

Here's what you shoulda' used, but you may to wrap sandpaper around a short piece of dowel now. Unless this bit would overcut what you have now

Round Nose & Core Box Router Bits


http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/graphics/spacer.gif
http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/graphics3/ktrndnose.jpg

[Chris Tsutsui]

Just an idea but what if you made a template, then used a plunge round radius bit.

It's basically the round over bit without the bearing/edge guide.

Actually, making the template becomes the tricky part.. heh Though you could use a trim router or possibly a dremel type tool?

[Prashun Patel]

I'd use a block plane along the long sides, and then hand sand it on the corners, and handsand the planed edges to round them over.

[Tom Henderson2]

Hi Joe-

Actually.... that is the kind of bit I used. I just didn't describe the corners I was concerned about very well.

The bottom is radiused. My problem is that the top corners, where the bit penetrates the surface of the cutting board, are sharp as shown in the image you posted.

Chris-

I thought about another template, but don't think I can get all the tangencies lined up properly...

-TH

[Jeff Bratt]

If a regular roundover bit won't work - you can try this...
http://www.infinitytools.com/prodinfo.asp?number=38-001

[Lee Schierer]

Wrap some 120 or 150 grit sandpaper around a dowel that is twice the diameter of the width of your groove and run it back and forth by hand. Once you have the amount of round over (actually a bevel) you want switch to 220 grit paper to finish it off. It should go pretty fast and with a bit of care you can make it even all the way around.

[Bill Petersen]

How about this?

http://www.leevalley.com/wood/page.aspx?c=2&p=45501&cat=1,42524

[Tom Henderson2]

How about this?

http://www.leevalley.com/wood/page.aspx?c=2&p=45501&cat=1,42524

Hi Bill-

Turns out my local Woodcraft had a Veritas set that was similar to the link you showed. So I purchased it and it worked pretty well. So thanks for the suggestion.

_TH

[glenn bradley]

Wrap some 120 or 150 grit sandpaper around a dowel that is twice the diameter of the width of your groove and run it back and forth by hand. Once you have the amount of round over (actually a bevel) you want switch to 220 grit paper to finish it off. It should go pretty fast and with a bit of care you can make it even all the way around.

Lee's got it. I would do that and finish off the turns with some folded sandpaper and my fingers. I think you'll find that it will go along quite nicely . . . use good paper, there really is a difference.

[Bill Huber]

On all of mine I did just what Lee said, just sanded them off a little just to take the sharp edge off. It doesn't take much and on the corners I just used the sand paper without the dowel.

[Rick Fisher]

Sandpaper and fingers +3..

By the time you go shopping, you will be done..


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