Photo 1- Use a dowel jig to bore holes for dowels that join the rails to the vertical posts, as well as for joining the drawer frames to the vertical posts.

Bore the side frame components for 3/8" diameter dowels. Be sure to locate the dowel holes away from the panel groove in the bottom and mid rails. Locate dowel hole centers at 5/8" and 1-1/4" from the bottom of the bottom rail, and the same distances from the top of the mid rail. On the top rails, locate them at 1/2" and 1-1/2" from the top. Carefully mark out the parts before boring. Use a dowel jig as in photo 1 to bore the holes. 3/8" dowel pins purchased in hardware stores are commonly 2" long, so bore just over 1" deep into both the rail ends and post edges.

Next bore the inside faces of the posts for the carcass rails as well as the drawer frames. For this you'll need a dowel jig capable of reaching across a 2" width, which some won't do. You can also set up on the drill press for these holes. Center the holes for the drawer frames along the width of the posts, and locate those for the carcass rails at 3/8" from the edge. Set the heights of the holes for the carcass rails so that they will be at 1/2" from the edges of the rails themselves. Bore these holes at about 9/16" deep.

Cut out plywood panels for these frames at the given dimensions. Make a groove along the inside edges of the frame parts for the plywood at the table saw. Use a dado, or make multiple cuts with your combination blade, with the depth of cut set at 1/4". Stop the cuts along the edges of the posts so that they do not extend above the enclosed lower section of the cabinet. Mark the posts so that you can see where to stop the cut as it is made on the table saw, and mark the table saw so you know where the front of the blade is. Push the part into the cut and when you see that you have pushed far enough, lift the part off the saw. Keep your fingers away from the blade area.