Biscuit joiner for spline cuts?

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Forum topic by ADHDan posted 11-08-2012 08:50 PM 2931 views 0 times favorited 3 replies Add to Favorites Watch
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800 posts in 2349 days

11-08-2012 08:50 PM

Topic tags/keywords: question

I’m making a bunch of picture frames and I was thinking of putting splines in the corners for decoration. Obviously, it would be easy enough to build a table saw jig for cutting the slots, but I was wondering – can this be done with a biscuit joiner? Anyone tried it?

Edit: I was thinking it would be pretty easy to make something like a splining jig, but horizontal. Just a piece of plywood with two 1-bys set on it at a 90 degree angle, which I’d use to line up the biscuit joiner at the corner of the workpiece.

-- Dan in Minneapolis, woodworking since 11/11.

3 replies so far

View cabmaker's profile


1744 posts in 3049 days

#1 posted 11-08-2012 08:54 PM

Yes I have. In my situation I placed the plate joiner on the back of the molding (only flat area). Expect a little blow out.

View pintodeluxe's profile


5819 posts in 3053 days

#2 posted 11-08-2012 08:57 PM

I have seen it done, but it will not be a decorative joint. The slot is bigger than an actual biscuit, so it won’t fill the void. You could make the slot with the biscuit jointer, then fill it with a contrasting hardwood sized to fit the slot. Don’t worry about making a football sized spline, just a small rectangular piece of hardwood will do.
FYI you will need to make a corner jig for your joiner.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View ADHDan's profile


800 posts in 2349 days

#3 posted 11-08-2012 09:11 PM

I wasn’t planning on using biscuits for the splines, I’d cut splines to fit the slot. My corner jig idea is above – just a piece of ply with two pieces of hardwood set at a 90 degree angle, thicknessed to match the frame thickness. Glad to know this isn’t a crazy idea.

-- Dan in Minneapolis, woodworking since 11/11.

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