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| Making A Radius Dish http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10117&t=18097 |
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| Author: | Chris Paulick [ Wed Jul 23, 2008 9:09 pm ] |
| Post subject: | Making A Radius Dish |
http://youtube.com/watch?v=tvGemvizrz4 |
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| Author: | ChuckH [ Mon Sep 01, 2008 10:11 am ] |
| Post subject: | Re: Making A Radius Dish |
Man, that's a cool idea. Wonder if you could use an electric motor instead of your router? Love the casters idea to help keeping it straight. |
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| Author: | Chris Paulick [ Sat Sep 06, 2008 3:34 pm ] |
| Post subject: | Re: Making A Radius Dish |
I don't see why not. If I build one into my work bench I was going to use a slow rpm. motor with a drive roller McMaster Carr. You would need to make a motor bracket with a spring tension adjustment something like on a contractors table saw. I also planned on putting the drive roller in one of the corners instead of one of the casters. I think it would make for a clean look and remove one less caster. I'd also step up the casters to have bearings. |
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| Author: | Dave Livermore [ Sun Sep 14, 2008 5:42 pm ] |
| Post subject: | Re: Making A Radius Dish |
Chris, Great idea. Wonderful tutorial. I'm working on building one of these right now. This link to help anyone doing the with the math. http://www.1728.com/circsect.htm Really the circle calculator has helped me for a couple years in figuring all kinds of cool stuff related to the various radii on the guitar. Dave |
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| Author: | Chris Paulick [ Sun Sep 14, 2008 8:05 pm ] |
| Post subject: | Re: Making A Radius Dish |
Thanks for adding the link here Dave. That will help. Here also is a spread sheet that Massimiliano Monterosso made up. http://www.maxmonte.com/utilities/radiusing.xls |
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| Author: | ghelps [ Thu Apr 23, 2009 11:56 am ] |
| Post subject: | Re: Making A Radius Dish |
What do you use for the abrasive? What rind of sand paper will conform to the convex geometry? |
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| Author: | Chris Paulick [ Thu Apr 23, 2009 12:36 pm ] |
| Post subject: | Re: Making A Radius Dish |
You can glue on strips across the dish or buy 24" sanding disc that are used for sanding wood floors or get them from Blues creek guitars. The radius of the dome isn't that small to affect the paper as it conforms with no problem. |
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