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cutting rosette channels/soundhole
http://www-.luthiersforum.com/forum/viewtopic.php?f=10101&t=23187		 Page 1 of 1
Author:  Christian Schmid [ Fri Jul 24, 2009 9:38 am ]
Post subject:  cutting rosette channels/soundhole
What do you use for cutting out the soundhole, routing rosette channels, and cutting the rosette out of a blank?

I have used the dremel circle cutter on my last two, used it yesterday again, and it's probably the flimsiest tool I have. I does the job ok, but now I can't use the height adjustment screw anymore because the plastic thread is...gone.

I have seen the drill press rosette cutter at LMI, but I don't really want to spend $200. I have also seen the jasper circle guide and the hand cutter at LMI, but was wondering what other solutions are out there, and how you like them.

best, Christian
Author:  George Thomas [ Fri Jul 24, 2009 9:59 am ]
Post subject:  Re: cutting rosette channels/soundhole
Having tried the Dremel (weak), and several other circle cutting attachments to a router I have good results with an inexpensive Grizzly laminate trimmer ($42) and a Wells circle cutter and a Blues Creek circle cutter. Both work well, are accurate, easily adjustable and can be drilled to match your laminate trimmer base. For cutting out the soundhole there is still the tongue depressor and x-acto knife blade as the low cost champ.
Author:  Pat Foster [ Fri Jul 24, 2009 11:59 am ]
Post subject:  Re: cutting rosette channels/soundhole
Christian,

Here's one I built awhile ago for not much money, based on ones by Tony Karol, Arnt Rein, Sylvan Wells and others.

Attachment:
l12.jpg


Here's some more more pics.

http://patfosterguitars.com/circlejig/index.html

Pat
Author:  LuthierSupplier [ Fri Jul 24, 2009 12:45 pm ]
Post subject:  Re: cutting rosette channels/soundhole
Christian,
I still have a few of these circle cutters left over from the Swapalooza if you are interested. $120 delivered:
viewtopic.php?f=10126&t=22807
Author:  Shane Neifer [ Fri Jul 24, 2009 5:10 pm ]
Post subject:  Re: cutting rosette channels/soundhole
Pat Foster wrote:
Christian,

Here's one I built awhile ago for not much money, based on ones by Tony Karol, Arnt Rein, Sylvan Wells and others.

Attachment:
l12.jpg


Here's some more more pics.

http://patfosterguitars.com/circlejig/index.html

Pat


Pat,
I have to say that is one UGLY guitar!! Sorry man but.... WOW!! laughing6-hehe laughing6-hehe

Shane
Author:  David R White [ Fri Jul 24, 2009 5:14 pm ]
Post subject:  Re: cutting rosette channels/soundhole
I use the Stewmac dremel guide adapted for use with my laminate trimmer.
Author:  Christian Schmid [ Fri Jul 24, 2009 5:47 pm ]
Post subject:  Re: cutting rosette channels/soundhole
Awesome, thanks for the suggestions. The Wells/Karol circle cutter looks really good.

Tracy, I don't need it right away - my wife and I are both in a transition phase job wise, so I won't be able to order in the next 2 months. Is this an item you regularly carry?

I just finished the rosette inlay. All done with the dremel circle cutter.

Image

Shane, that's one of your cinnamon cedar tops with a spalted maple rosette.

It's good to have purfling in multiple width. I messed the routing up first (tear out), so had to inlay another purfling ring to cover most of it up :D
Christian
Author:  Ray Pepalis [ Fri Jul 24, 2009 5:52 pm ]
Post subject:  Re: cutting rosette channels/soundhole
I use a Dremel tool with the old model Stew-Mac Circle cutter jig.
I improved the jig by adding an anti-backlash spring for more precise adjustment.

Ray
Attachment:
SoundholeRout.jpg
Author:  Dave Fifield [ Fri Jul 24, 2009 6:03 pm ]
Post subject:  Re: cutting rosette channels/soundhole
For rosettes, I use a Stewmac circle cutting jig with a Dremel. I modified the jig to give me digital accuracy and complete repeatablility. Old thread about it here.

I use my laser to cut the soundhole.

Cheers,
Dave F.
Author:  Robbie_McD [ Fri Jul 24, 2009 8:18 pm ]
Post subject:  Re: cutting rosette channels/soundhole
The Bogdanovitch book has pretty good instructions for building your own.
I made mine out of 1/4" maple and it works amazingly well....
A spiral downcut bit is highly recommended....

Image
Author:  Alexandru Marian [ Fri Jul 24, 2009 8:27 pm ]
Post subject:  Re: cutting rosette channels/soundhole
For many powertool setups, a manual circle cutter with a very sharp blade is a great addition. For me even the slightest tear-out around the rosette is quite a let-down regarding craftsmanship on that guitar. And most players (or luthiers) inspecting a guitar will definitely look first at the rosette. I think it is the one spot in need of most attention fit-wise.
Author:  LuthierSupplier [ Fri Jul 24, 2009 8:30 pm ]
Post subject:  Re: cutting rosette channels/soundhole
Christian Schmid wrote:
Awesome, thanks for the suggestions. The Wells/Karol circle cutter looks really good.

Tracy, I don't need it right away - my wife and I are both in a transition phase job wise, so I won't be able to order in the next 2 months. Is this an item you regularly carry?

Christian,
I'll probably keep some extras on hand always, and may start offering them soon. Hope to be of service. Great job on that rosette, that turned out really nice! Another great tip I learned from a local builder on spalted maple rosettes...in areas where you need more spalt, break the rosette in this area, it will usually snap very cleanly, then use a black sharpie to color the 2 joining faces with black ink. Then glue back together. You will never know it was a man made spalt! Good luck!
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