I normally get a copy of the plans made, then cut the parts from the copy and stick them to the wood using a glue stick (you can also use rubber cement ). Cut your parts about 1/16" OUTSIDE of the line and sand to the line.

For multiples of the same part, use a glue stick to adhere the pieces of wood together (you may need to clamp them with cothspins for about 20 minutes to get the pices to adhere together). After you have cut and sanded the part(s), CAREFULLY use a #11 blade to separate the pieces. Normally you can see where two pieces are together. Use the edge of the #11 blade to separate the pieces. The pieces usually will pop apart. If not, use a SLIGHT pressue from your fingers to hold the pieces slightly apart and run the blade between the pieces.

I have found that the glue stick does not affect gluing the pieces and that once the glue stick has dried it is not sticky or gummy.

The other option (if you REALLY like to work at it, is to place theplans over the piece of wood, then using a T pin, poke holes all around the outline of the part. Take the plans off and "connect the dots".