Today I am going to show you how to make a 6" crown molding for about 1/5 the cost of production crown. This is what is considered a "built-up crown", meaning that the crown is assembled from parts as opposed to being molded in a shaper as one piece.
Step 1: Gathering Materials
The room we did this to already had a 2" cove molding at the ceiling. That will become the center of the crown.
Step 2: Route the Edges
Next route each edge of the 1"x8". This will make the back part of the molding.
Step 3: Rip the Boards
Next rip the 1"x8" into two pieces. One side should be 3/4" of an inch wider than the other. This will make a 90deg. corner with equal side.
Step 4: Pre-Paint
Paint all the pieces before you put them up. It makes it much easier this way.
Step 5: Test Assembly
This series of photo's show how the crown will be assembled on the wall.
Pic 1. These are the pieces used to make the molding. The screen molding, the 2" cove in the middle and the 1"x8" to the right. The second photo shows how the back pieces fit together.
Pic 2. This show how the back pieces will be fit together.
Pic 3. The screen molding is attached to the back piece on the wall.
Pic 4. Put the cove molding against the screen molding and tack in the screen molding to the back piece on the ceiling to hold in the cove.
Pic 5. The profile of your new crown molding.
Next we will make the corner and center blocks.
Step 6: Corner Blocks
To make the corner blocks start by cutting a 2"x4" into blocks. Spread glue evenly on two blocks. Put the glued sides toward each and clamp. Since only the inside of the blocks are glued, you can clamp all the blocks at once.