Cutting crown molding: the joints in the crown molding are called compound because the cuts at every side have two angles. Yahoo… congratulations you have just finished installing beautiful crown molding… If you need to paint, paint away, and if you chose the material I did that is already finished, then double yahoo to you! Using the 505P protractor from Starrett Tools, place it in the corner and open the wings until they come into contact with the wall. To figure out the contour, this second piece is cut at a 45 degree angle, as if it were being cut to miter it into the corner.
Your installation will appear flawless, even if like mine, it wasn’t… Caulk is the magic eraser of the crown molding world, and your very good friend. Knowing how to work out the compound mitre angles to be able to cut them on the panel saw or mitre saw is the other option, and one I have found to be of most use. Because the molding is installed at an angle, it cannot be cut lying flat in an ordinary miter box; as you make the cuts, you must hold the molding at an angle.
As far as the spring angle, I have installed crown where the spring angle was not determined by the back. Three other low-tech tools are needed to complete your tool kit for cutting crown molding: a carpenter ‘ s pencil , a tape measure , and some sandpaper ; 150 grit works well. Refer to the BASICS page to determine your spring angle we will use a 45 ° spring angle for this tutorial. Pencil lines on the bed or fence can help you position the crown right, but fence extensions and stop blocks make positioning fast and foolproof. Again, the advantage of the backer board is that you can now nail the crown at any point along its length.
The fence is the ceiling and the table is the wall, the crown must lay at an angle just like it does when installed. The following is a list of which way to swing the Miter Saw at a 45° angle, and which side is the waste for each cut. Hold it against the saw table and the vertical fence so that the small angled areas on the back of the molding are tightly against each surface. You will need to remove notches if you are working with molding in complex shapes. Remember, my Crown Molding eBook has complete step-by-step instructions with tons of color photographs that show you exactly how to cut crown molding.
Each corner requires two angles — a miter angle which is cut across the face of the molding SAWING SOUNDS and a bevel angle that’s formed across the end or edge. The pdf guide available on the website may help… rather than cutting a compound mitre using a clever and confusing jig try clamping the piece at the angle it’ll be mounted at (but upside down) then cut a simple vertical miter through that. The crown molding is laid flat on the table of the miter saw with the top edge of the crown molding placed against the fence. This cut angle butts up against the other piece of crown molding, giving the appearance of having the two pieces mitered together, without any gaps.
For example, if you measure a corner angle of 146° and were using crown molding with a spring angle of 38°, you would just simply look up the miter and blade tilt in Chapter 4 or the crown molding table, page 124 thru 141. The advantage of using a compound miter saw is that you can set the molding flat on its back with the decorative side up and use the blade tilt angle to create a precise cut. The cutting illustrations assist you with the setup of the miter saw and with the placement of the piece of crown molding.
These slight discrepancies will make a big difference to the fit of your molding so find your true measurements before you cut. When you cut baseboard you place the back of the trim against the vertical fence. Making the modest investment in a Crown Molding Miter Jig will make such difficulties disappear. We’ll add it to the list of lessons learned, but at least we broke the crown molding ice around here. Erase small cracks in outside corner joints by rubbing with a utility knife handle.