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  #1  
Old 01-09-2012, 07:30 AM
CDBridgesRV7A CDBridgesRV7A is offline
 
Join Date: Oct 2010
Location: Berwick, Nova Scotia, Canada
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Default Bevelling Techniques

Good Morning,

I have 2 wing skins that overlap one another. The plans call for them to both be bevelled. What is the best technique to do this?

Thanks

Chris
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  #2  
Old 01-09-2012, 07:35 AM
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CharlieWaffles CharlieWaffles is offline
 
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I used a belt sander. Masked off the area wi several layers of tape to prevent collateral damage and measured the skin as I went with calipers. Once each piece was approximately half the thickness I was there. Need to make sure you are even I. Your pressure as the edge will not stay uniform in thickness without some concerts effort.
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  #3  
Old 01-09-2012, 07:50 AM
rv7charlie rv7charlie is offline
 
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+1 on the belt sander technique. A good sharp file can be used for the last bit, but it's pretty slow for the whole process.

Charlie
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  #4  
Old 01-09-2012, 07:57 AM
WingsOnWheels WingsOnWheels is offline
 
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A vixen file makes pretty fast work of beveling the edge. I used a sander back when I did my wings, but tried out the file (as suggested by Ken @ Vans) when I was working the forward bottom skin on the fuse. The file was much faster and left a better finish that required less smoothing.
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  #5  
Old 01-09-2012, 08:00 AM
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Lemmingman Lemmingman is offline
 
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How much of the edge do you have to bevel?
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  #6  
Old 01-09-2012, 08:06 AM
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vmirv8bldr vmirv8bldr is offline
 
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Default Sharpie

IIRC, I put them on the wing and then used a sharpie to mark the overlap on both sides. Then you can see exactly how far to bevel.

YMMV,

Bart
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  #7  
Old 01-09-2012, 08:27 AM
WingsOnWheels WingsOnWheels is offline
 
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Quote:
Originally Posted by Lemmingman View Post
How much of the edge do you have to bevel?
It is just the forward corner where the two skins overlap at the spar. I don't remember exactly, but probably no more than a 2"x2" area.
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  #8  
Old 01-09-2012, 09:26 AM
CDBridgesRV7A CDBridgesRV7A is offline
 
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Location: Berwick, Nova Scotia, Canada
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Don't you have to bevel the entire length of the skin in order to have a smooth transition from one to the other? This is my W702 and W703 skins (the upper inboard and outboard skins)

Chris
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  #9  
Old 01-09-2012, 10:59 AM
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rzbill rzbill is offline
 
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No, its just a triangle in the corner
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  #10  
Old 01-09-2012, 11:17 AM
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Flyguytki Flyguytki is offline
 
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Theres lot that have cut the entire 2X2 section out instead of beveling the skin. The fit turns out much better than you would expect.

the first 2 pictures show how I did mine

http://www.n87dx.com/N87DX/Wings/Ent...one_today.html

-david
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