How thin can you biscut?

[KennyR]

I am making a small cabinet out of 5/16 Birch Plywood.  I want to biscut join it but don't know if it thick enough.  The biscut is 80% the thickness of the edge. 

Would a domino work better on this stock?

Thanks.

Ken Raddon.

 

[Brice Burrell]

Kenny, no, 5/16" stock is also too thin for the Domino.

 

[Dave Ronyak]

I've never tried joining birch ply of that thickness, but I have been sucessful using splined joints with solid lumber (cherry) of that thickness.  I cut the grooves for the splines on a table saw and use 1/8 birch ply for the splines.  Or I just form T&G edges directly on the wood pieces to be joined.

Dave R.

 

[Steve Jones]

Dave's got the right idea, to join your plywood edges, cut some splines (from something solid) the width of the saw kerf then run the ply boards edge on across the tablesaw for quick slots (keep the front or top edge to the fence and you don't have to be picky about centering the cut, and you'll end up with a perfect joint.

Steve

 

[KennyR]

Sounds like good advice.  Thank you.

Ken.

 

[Markus K.]

the smallest I did was 8mm MDF with the Domino 5mm. This is about 5/16 of an Inch. For this I doublestick-taped a piece of Wood, 18mm thick, underneath the tilting table and adjusted the height so the router becomes in the middle of the MDF. I did about 200 Domino's this way, it worked really fine!