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I'm going to be joining 2 1x6" pieces of wood at a simple miter joint.

enter image description here

However, I want the top edges to be rounded over. I'm planning to use my router and a round over bit to soften the edges, the only problem is I'm not sure if I should...

  • Route the pieces, cut the miter, then assemble.
  • Cut the miter, route the pieces, then assemble.
  • Cut the miter, assemble, then route the piece.

If I was only rounding over the outside edge of the piece, I'd probably route it after assembling it. Since I want to round over both top edges, I'm concerned the inside corner will not come out right if I assemble the piece before routing.

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What kind of look do you want on the routed corner? If you route first, you'll get a sharp edge on the routes. If you route last, you'll get a rounded effect. I'd advise against routing in the middle. – BMitch Mar 16 '12 at 14:45
@BMitch It's not really a concern. As long as the joint looks good and is tight (no funny looking gaps), I'm happy. – Tester101 Mar 16 '12 at 15:19
up vote 8 down vote accepted

Route the pieces, cut the miter, then assemble. I believe that will give the best look. You could just practice all three on some scrap to see which you like.

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I agree with trying both on scrap. My 2 cents is that routing after assembly will give it that 70's used-bar-of-soap look, where there aren't any edges anywhere. I prefer having some edges. – dbracey Mar 16 '12 at 16:36

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