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Discussion Starter · #1 ·
8" shelf boards. They are mitred to 30 deg. angle. I'll be using biscuits, and it'll be on top of a table, so I want it to be as neat as possible. Cut both ends with a power table saw. When I place the edges together, it looks pretty good.
Question is: Do I need to give these edges any further attention before gluing? Very light, fine sanding? Or best leave well enough alone?
 

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where's my table saw?
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I can't quite picture this...

Can you post a picture? Regardless, using biscuits on a 30 degree miter may prove difficult. A full length spline would be better and easier in my opinion. IF you have a good means of securing the boards at that angle, you don't even need a spline. You just don't want the edges to slide as you apply clamping pressure.

You may have to fab up a jig to make the clamping go well....
 

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Uncle Fester
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Try a Festool Domino for the joints. Will stay flush and won't slide like biscuits
 

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Old Methane Gas Cloud
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you aren't edge joining...you are END joining. Gluing ends doesn't work that great biscuits will help.
That was my thought exactly!

As a suggestion and it will make life a lot easier. Use lap joints and no biscuits / dominos / dowels. An inch "lap" glued and clamped would be as strong as the wood itself.

You could put a slight chamfer (1/16 to 3/32) all the way around the boards of the table top. You may have to do one end of the lap joint with a sanding block.

The result is that the table top will look like tongue and grove. For a casual dining table that would be very acceptable.
 

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Discussion Starter · #6 ·
Sorry for the terminology mix up. I'm pretty new at this.

"Gluing ends doesn't work that great biscuits will help. "

I'm a little confused about what you're saying here. Biscuits will help, or
won't?

I seems to me that an inset such as a dowel or biscuit would keep things straight and turn out strong, but I have admittedly never done a biscuit before.

The lap joint sounds llike a good idea. I'll take a look at the Festool.

I'll post a picture in a bit to make sure I am not mis-describing it. It's not a dining table, just one part of a crazy concoction to hold books and CDs. So I want it be somewhat solid looking as opposed to fancy-dancy. The wood I have is hickory.
 
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