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  #1  
Old 01-08-2017, 05:51 PM
asw20c asw20c is offline
 
Join Date: Jun 2010
Location: Edgewood, NM
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Default Deburring Tips

I spent almost two hours today deburring half of one of the bulkheads in the empennage kit. Each one of those little tabs on the flange that fit the curve of the bottom skin are a major pain in the rear. I've tried using a standard deburring tool, scotch brite, and a file. I can get the job done eventually but it is not without some difficulty and much more labor intensive than I had thought it might be. Considering how long it took to complete just half a bulkhead does it sound like I may be going overboard? Too anal? Or does this sound about right?
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  #2  
Old 01-08-2017, 06:11 PM
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Raymo Raymo is offline
 
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Are you using one of these?

http://www.cleavelandtool.com/DOUBLE.../#.WHLi4fkrKM8
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  #3  
Old 01-08-2017, 06:41 PM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
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Quote:
Originally Posted by asw20c View Post
Considering how long it took to complete just half a bulkhead does it sound like I may be going overboard? Too anal? Or does this sound about right?
Well, it is more effort than I do.
I would probably complete all of them in well under 2 hrs, so I would say you are doing more than at least some people do.
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  #4  
Old 01-08-2017, 08:23 PM
rv9builder rv9builder is online now
 
Join Date: Jan 2005
Location: Irvine, CA
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Scott,

Do you have a preferred tool or technique that you recommend for deburring the curved areas of the narrow slots between the small tabs on the flanges of ribs and bulkheads?

Thanks,
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  #5  
Old 01-09-2017, 04:49 AM
mturnerb mturnerb is online now
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
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I have found emery cloth and this stuff to be very useful:

https://www.amazon.com/Mitchell-Abra...=abrasive+tape

And the cord version is useful for the smaller corners:

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


Also, drywall sponges (3M, aluminum oxide) are great for larger openings and skin edges: knocks the edges down smooth, I go over again with ScotchBrite while scuffing to prime.
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  #6  
Old 01-09-2017, 06:19 AM
Mudfly Mudfly is offline
 
Join Date: Dec 2011
Location: Alpharetta, Ga
Posts: 126
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Quote:
Originally Posted by mturnerb View Post
I have found emery cloth and this stuff to be very useful:

https://www.amazon.com/Mitchell-Abra...=abrasive+tape

And the cord version is useful for the smaller corners:

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


Also, drywall sponges (3M, aluminum oxide) are great for larger openings and skin edges: knocks the edges down smooth, I go over again with ScotchBrite while scuffing to prime.
I have not seen that product before. Looks like a great idea. I was just looking at the stack of ribs in my wing kit and thinking about all the deburring ahead. Those may help!
I also like using this flexible sandpaper from 3M. Little more pricey than regular, but it does seem to last longer.
https://www.amazon.com/3M-28220SB-UF...SD7CREX4WSF1E9
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  #7  
Old 01-09-2017, 09:50 AM
Polar Polar is offline
 
Join Date: Oct 2013
Location: Central Alberta
Posts: 63
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When I first started my empennage I had a similar experience, deburring was taking hours. I tried different things until settling on a mini right angle die grinder with a fine grit non-woven flap wheel for pretty much all the edges. If you carefully feather the throttle you can push the soft wheel into the spaces between tabs, it does a nice job and it's really fast. The downside is the wheels are pricey, and don't last long. To deburr holes I primarily use a single flute countersink in a miniature drill. On slow speed it only takes one revolution to remove the burr without chamfering it.

I wish that, in addition to a QB kit, Vans sold a 'deburred' kit.

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  #8  
Old 01-09-2017, 10:12 AM
cczarnik cczarnik is offline
 
Join Date: Sep 2016
Location: Middle TN
Posts: 103
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Wally World sells a 3m metal stripping wheel in the auto dept. similar material to the maroon pads but a little more coarse. After it wears down a little it's perfect to chuck into a drill press and work on the nooks and crannies. Only $8. And the 3M bench grinder wheel from vans is a must have.
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  #9  
Old 01-12-2017, 07:34 AM
caapt caapt is offline
 
Join Date: Feb 2013
Location: Pottsboro TX
Posts: 60
Default 1" scotchbrite

I used a 1" scotchbrite wheel. Put it in my electric drill and go to town. One rib took about 5 minutes. Available at Cleveland Tools. They do wear out so get more than one. Maybe 8 or 10 for the whole airplane. don't forget the screw that attaches to your drill
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