Guide to Using Rosette Cutters

A Guide to Using Rosette Cutters

Perfect for furniture, home building and restoration. For a smooth finish in stubborn hardwoods, dampen the surface of the wood with a sponge just prior to the last cut. These are CARBIDE TIPPED cutters intended for use in a drill press.

SAFETY NOTE: NOT INTENDED FOR ROUTER USE. This product is designed to be used in a variable-speed drill press or lathe at less than 600rpm. All material must be securely clamped to prevent injury or damage to the project. Never use in a hand drill or router.

Cut the blocks to size on the table saw after making all the rosettes.

Using a rosette cutter is not difficult, but it takes a little getting used to because they are fairly large and sort of intimidating at first. Cut the blocks to size after making all the rosettes. Take the blank over to the table saw and cut the individual rosette blocks down to the final size.

Clamp it down: Clamp the workpiece securely to drill press table
Use a long blank: To make rosette blocks, cut several rosettes in a long blank. The extra length allows you to clamp the blank securely to your drill press table.

Setup

Clamp it down properly To start with, you should always make sure your workpiece is firmly clamped to the drill press table. Rosette cutters don't have a center point to guide them. Because of this, they tend to grab the wood as they cut. If you try to hold the workpiece by hand, or if you don't have it securely clamped down, the cutter will grab it and fling it off the drill press table.

Trying to clamp a small block of wood down to a drill press can be a challenge. So if you're making square rosette blocks (like for trimming out a door or window), you'll find it easier to cut the rosettes in a longer piece of stock first and then cut the individual blocks to size

Speed

Set the drill press speed In addition to holding the workpiece securely, the other thing you'll need to pay attention to is the drill press speed. Carbide-tipped rosette cutters can be run at medium to high drill press speeds — 2000 to 3000 rpm. Although most cabinetmakers will tell you to use it at speed maximum of 600rpm, it is necessary to do test cuts. The type of wood will indicate what speed is required. A slightly cleaner cut will be obtained when using higher speeds - therefore a test cut is required.

Chatter

Aside from all the safety issues, the real challenge when using a rosette cutter is getting smooth results. Despite their name, rosette cutters actually do more scraping than cutting. Because of this, it is common to experience some chatter when using one. If this happens, back off on your feed rate a bit to take a smaller cut.

Because the rosette cutter is travelling in a circular motion, you can't avoid cutting through at least some end grain. If you are working with an open-grain wood like oak, some tear-out is almost inevitable. Tighter-grained woods like maple and cherry seem to yield better and smoother results. But no matter what type of wood you use, plan on doing a little bit of sanding to clean up any rough spots, particularly on the end grain.

Cutting to size is the last step

Cut to size After making all the rosettes, take the blank over to the table saw and cut the individual rosette blocks down to final size.
Note: Holding small pieces of wood on the drill press table while using such a large diameter cutter is not safe!

Important Steps

1. Use the Right Wood

The type of wood you choose to use will have a significant impact on the quality of your finished project. Hardwoods with tighter grains, such as cherry, birch, mahogany, and maple, will yield cleaner cuts with minimal tear-out. Avoid the use of softer woods like pine since its loose grain makes it more susceptible to cut damage.

2. Run the Drill at the Correct Speed

You must run rosette knives at lower speeds of 300 to 600 rotations per minute. Operating these interchangeable blades at a slower pace will prevent you from burning the stock or causing unnecessary tear-outs. You can increase your drill rpm. Always use these cutters on a stationary machine. A few test cuts will help determine the best results.

3. Clamp Down Securely

Always clamp down wooden planks to your drill press. Longer planks are easier to attach to the table securely. Clamping is especially crucial because rosette knives do not have centre points, which causes them to grab the wood as it cuts. Firmly clamping down the wood instead of holding it in place will keep the planks from dislodging and causing injury.

4. Watch out for Chatter

Since these knives tend to scrape rather than cut, chatter is common. Chatter occurs when the blade skips across the surface of the wood, causing vibrations and creating parallel lines. The best way to avoid this is by slowing the rate at which you feed the wood into the press. If you notice any rough spots caused by chatter, sand them down.