BISCUITS
Aplate (aka biscuit) joiner runs anywhere from $70 to $700. The $700 variety is really nice, but it’s not necessary for an amateur woodworker. A modestly priced model works just fine. A plate joiner cuts a semicircular slot in adjoining parts to accept a plate/biscuit, which is then glued into place. Biscuits come in different sizes to accommodate various part dimensions.
PROS
Fast Easy to use Easy to offset parts Effective dust collection Automatic alignment in one direction
CONS
Clamping required Parts can slide during clamping
1. CUT THE SLOTS
Mark joint centerlines on adjoining parts. Set the plate joiner to the desired cutting height, and set the cutting depth to match the biscuit size you’re using. Line up the guide mark on the joiner’s fence with your mark and plunge the cut. The latest version of this Ryobi plate joiner costs about $100 at homedepot.com.
2. INSERT THE BISCUITS
Apply glue to the mating surfaces and in the slots. Insert the biscuit, press the joint together and clamp.