Official Luthiers Forum!
http://www.luthiersforum.com/forum/

Putting on minor radius 35-40 (without a dish)?
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=21853		 Page 1 of 1
Author:  Frei [ Wed Apr 08, 2009 3:04 pm ]
Post subject:  Putting on minor radius 35-40 (without a dish)?
This topic should be interesting...I have read where you can make your own dishes using 1/4 MDF. Just cut it into a circle, screw down the center and use spacers to "dish it" to your appropriate radi. (for some reason its not a perfect 'radi' but....eees cheap...) wow7-eyes



Has anyone done dishes this way? What are you using to get a 30-40+ radi? (Does anyone have the MATH to figure out radi from a 14" rod bent in ala Kinkeads method in his book?)

I am thinking spacing with pennies or nickes at a given distance around the arc, or maybe roundhead screws screwd in to the bottom baseboard.

Havent seen this topic posted here, just on MIMF...

tanks... [:Y:] :ugeek:
Author:  Michael Dale Payne [ Wed Apr 08, 2009 3:09 pm ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
Theoretically this is just a mater of knowing the total rise of the cord. Frankly though that thin of MDF will not likely hold the arc true for long unless well sealed.
Author:  Dave White [ Wed Apr 08, 2009 3:55 pm ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
Try this
Author:  Frei [ Wed Apr 08, 2009 4:15 pm ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
Dave White wrote:
Try this


Dave, I am aware of that technique, but I need to do the rim to match also. But for giggles sake, how do you get the origional 40 degree brace to start with?
idunno
Author:  LPMc [ Wed Apr 08, 2009 10:07 pm ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
http://www.ukuleles.com/Technology/calcarc.html
Author:  Dave White [ Thu Apr 09, 2009 7:03 am ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
I feel really sorry for the guitar makers of old. How could they possibly start making guitars without a radius dish - I mean you couldn't possibly mark the rim and use hand tools could you :shock:
Author:  Michael Dale Payne [ Thu Apr 09, 2009 9:01 am ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
Dave White wrote:
I feel really sorry for the guitar makers of old. How could they possibly start making guitars without a radius dish - I mean you couldn't possibly mark the rim and use hand tools could you :shock:
<LOL>
Author:  Frei [ Thu Apr 09, 2009 11:24 am ]
Post subject:  Re: Putting on minor radius 35-40 (without a dish)?
LPMc wrote:
http://www.ukuleles.com/Technology/calcarc.html


Very cool that would do it...thanks
Page 1 of 1 All times are UTC - 5 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/