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Acoustic guitar sound board, rosette????
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=39526		 Page 1 of 1
Author:  superspeedo [ Wed Feb 27, 2013 2:23 pm ]
Post subject:  Acoustic guitar sound board, rosette????
Hay all, what is the best router bit for a rosette?????
Author:  DennisK [ Wed Feb 27, 2013 2:39 pm ]
Post subject:  Re: Acoustic guitar sound board, rosette????
1/16" spiral downcut end mill.
Author:  Rod True [ Wed Feb 27, 2013 5:27 pm ]
Post subject:  Re: Acoustic guitar sound board, rosette????
DennisK wrote:
1/16" spiral downcut end mill.


Unless you're adding a purfling line of 1/32"...... ;)

If all your doing it routing out a channel on the top to install a basic wood rosette, I'd go with either a 1/16" or 1/8" end mill.

As Dennis said though, you'll want to go with a downcut spiral.....Stew Mac sells them (rather expensive) or you can get them from places like MSC. Or do a search on the forum for small end mills and you should get several hits with where to purchase inexpensively.

Cheers
Author:  bluescreek [ Wed Feb 27, 2013 5:27 pm ]
Post subject:  Re: Acoustic guitar sound board, rosette????
it depends on the rosette.
A sharp bit. I won't use a down cut on a closed cut , the chips are pushed into the work . This creates more heat. .I use 3/32 bits for most of the rosettes. I also use a 70,000 rpm cutter.
Author:  superspeedo [ Thu Feb 28, 2013 11:01 am ]
Post subject:  Re: Acoustic guitar sound board, rosette????
Thanks for your help and advice guys!!!!
Something for nothing was never dear!
Author:  Quine [ Thu Feb 28, 2013 1:35 pm ]
Post subject:  Re: Acoustic guitar sound board, rosette????
bluescreek wrote:
it depends on the rosette.
A sharp bit. I won't use a down cut on a closed cut , the chips are pushed into the work . This creates more heat. .I use 3/32 bits for most of the rosettes. I also use a 70,000 rpm cutter.


I've thought this too. I use straight router bits and never had a problem with my laminate trimmer.
I'd use the biggest bit you can for your rosette. I try to make one pass to remove most of the wood and one to fine-fit. Fewer passes meas fewer chances to screw it up
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