Routing Rosette Slots
Tuesday, December 20th, 2005First make a plywood base for your router. It’s easy to do this by using the router itself with a trammel or circle cutting guide (if you haven’t made one of these already I strongly recommend you do as they’re very helpful things to have). I usually just use 3/4″ plywood for bases as it’s stable and stiff enough for most uses.
Carefully mark out and drill the screw holes so that you can mount your plywood disk to your router base. Don’t worry about the center hole for the bit right now as you can easily put a router bit in the collet and then plunge rout the hole once the plywood base has been mounted to the router. If you don’t have a bit large enough for the collet to clear you can always drill it out to the right diameter after making a smaller “pilot” hole.
To use the jig, attach the guitar soundboard to a plywood or chipboard base. Drill a hole through the center of where you want the rosette to be on your soundboard and into the plywood/chipboard base. Make sure the hole is the same size as the pin you will use to guide your router jig. I use 1/4″ brass or steel rod and this works well.
Measure out the radius of the rosette you wish to use, allowing for the diameter of the router bit as well. Use this calculation to measure the distance out from the cutter on your new plywood router base. Unscrew the base from the router and drill a hole to fit the pin using a drill press for accuracy. Screw the plywood base back onto the router once you’ve done this.
Now insert the pin through the soundboard and into the backing jig. Position your router over the pin and make sure it slots into your newly drilled hole in the router base. Set the depth of plunge to cover the thickness of the rosette and then start the router up. Make sure though that you make your initial plunge cut where the fingerboard will cover the rosette. The reason for this is that there’s usually a little “kink” when you first plunge the router down so it’s better to have this hidden rather than fill it up afterwards. The width of your rosette is determined by the width of the router cutter you’re using so take care to make accurate calculations on the radius or diameter of your rosette.
Once you’ve made the rebate for your rosette you can now reposition the router – by drilling another hole in the base – to cut your sound hole out. You might want to use a smaller 1/4″ or 1/2″ router bit for this though.
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Here’s a basic rundown on how to go about it…
7:- Finish the sunburst by spraying the top and back of the guitar with the dark brown, taking care to spray from the center outwards towards the edges. Make sure that your coats are very light and that there’s not too much color in your mixture. It’s always much easier to add tone by successive coats than to take it away by sanding, so proceed carefully.
In 1946 Bill’s brother Reg, a cabinetmaker, came into the business with him and work continued for a few years while they perfected the first Maton prototypes. Also that year the company took out a patent which turned out to be a world first – a simple but effective device which enabled the guitar maker or repairer to ensure that the neck remained true and straight. The device was called the “double thrust truss rod” and was anchored from the base rather than the headstock end of the guitar.


“There’s no point embarking on an export drive if you don’t have the capacity to supply,” Mr Kitchen chimes in.