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deburring inside of ribs

 
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PFolbrecht(at)starkinvest
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PostPosted: Tue Jan 17, 2006 8:19 pm    Post subject: deburring inside of ribs Reply with quote

What tool do I want for deburring the inside of rib flange holes? The avery swivel doesn't do it.

Maybe I could stick the head in the end of the 90-degree drill kit... hmmm.

~Paul
~9A QB #1176 Setting 1st rivets on h. stab tomorrow maybe...


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jcimino(at)echoes.net
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PostPosted: Tue Jan 17, 2006 9:15 pm    Post subject: deburring inside of ribs Reply with quote

I used a Scotch Brite Wheel (small) on an adapter for the drill.
Jim

Jim Cimino
N7TL
RV-8 S/N 80039
200+ Hours
http://www.geocities.com/jcimino.geo/

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Mark Phillips in TN



Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN

PostPosted: Wed Jan 18, 2006 6:54 am    Post subject: deburring inside of ribs Reply with quote

In a message dated 1/17/06 10:25:03 PM Central Standard Time,
PFolbrecht(at)starkinvestments.com writes:

Quote:
What tool do I want for deburring the inside of rib flange holes?


Quote:
>>>

Hi Paul-

Take a look here:

http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=4865

Worked great for me!

Quote:
From The PossumWorks in TN
Mark Phillips N51PW - 275 hrs


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_________________
From The PossumWorks...
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PFolbrecht(at)starkinvest
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PostPosted: Wed Jan 18, 2006 7:23 am    Post subject: deburring inside of ribs Reply with quote

Thanks, but I meant drill holes, not lightening holes. Those are easy
enough to do.

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Neal.George(at)maxwell.af
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PostPosted: Wed Jan 18, 2006 7:55 am    Post subject: deburring inside of ribs Reply with quote

Paul -

Look here: http://www.appaero.com/Pictures/Fuselage/Bulkheads/DSC05205.JPG

And here:
http://www.kitlog.com/users/display_log.php?user=ngeorge&project=27&category
=0&log=8495&row=28

Neal
Do not archive


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dan(at)rvproject.com
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PostPosted: Wed Jan 18, 2006 8:14 am    Post subject: deburring inside of ribs Reply with quote

I'm assuming you're talking about rib flange rivet holes in areas too tight
to get a conventional deburring tool or a large drill bit. Just run a
scotch brite pad over the holes, then prime 'em (if you weren't priming
everything already) since you will have removed alclad.

do not archive
)_( Dan
RV-7 N714D
http://www.rvproject.com

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PFolbrecht(at)starkinvest
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PostPosted: Wed Jan 18, 2006 8:44 am    Post subject: deburring inside of ribs Reply with quote

Stick it in a die grinder -- I shoulda thought of that.

But I'd imagine you want to have a real light finger deburring that way.

Thanx.

Do not archive
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matronics(at)cencula.com
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PostPosted: Wed Jan 18, 2006 11:07 pm    Post subject: deburring inside of ribs Reply with quote

Well, today I was facing the same problem deburring the holes in the rudder
ribs near the trailing edge. The flanges get really close on the last few
holes. I ended up making this doohickey out of a nail. You stick the shank
through the hole from the inside of the flange, then grab on the shank with
your cordless drill. A couple rotations of the drill (in slow speed) and
you've got a nicely deburred hole. Took me about 5 or 10 minutes to make the
thing and it can debur any hole where there's at least 5/16" between flanges.

http://www.cencula.com/nail_deburring_tool.jpg

Have fun,

Mike

On Tuesday January 17 2006 11:18 pm, Folbrecht, Paul wrote:
Quote:

<PFolbrecht(at)starkinvestments.com>

What tool do I want for deburring the inside of rib flange holes? The
avery swivel doesn't do it.

Maybe I could stick the head in the end of the 90-degree drill kit... hmmm.

~Paul
~9A QB #1176 Setting 1st rivets on h. stab tomorrow maybe...

<snip>


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Rick Galati



Joined: 10 Jan 2006
Posts: 91
Location: Lake St. Louis MO.

PostPosted: Thu Jan 19, 2006 4:32 am    Post subject: Re: deburring inside of ribs Reply with quote

There are any number of accessories for use in your Dremel tool or my favorite, a pneumatic pencil grinder such as ball files or stones that will reach those problem areas and deburr structural parts just fine.

Rick Galati RV-6A "Darla"
PFolbrecht(at)starkinvest wrote:
What tool do I want for deburring the inside of rib flange holes? The avery swivel doesn't do it.

Maybe I could stick the head in the end of the 90-degree drill kit... hmmm.

~Paul
~9A QB #1176 Setting 1st rivets on h. stab tomorrow maybe...


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PFolbrecht(at)starkinvest
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PostPosted: Thu Jan 19, 2006 6:57 am    Post subject: deburring inside of ribs Reply with quote

Creative! Thanks for all the replies on this - I need to learn to think
a bit more 'out of the box' on this stuff.

I did end up doing those holes with a dremel bit held in my fingers.

Paul

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Dan.Beadle(at)hq.InclineS
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PostPosted: Thu Jan 19, 2006 9:24 am    Post subject: deburring inside of ribs Reply with quote

I use the swivel debur on the lightening holes and wiring holes. On
smaller ones, I use sandpaper or scotch brite. The key is to knock off
any rough spots that might start stress cracks.

Van's guidance is if you aren't likely to cut your finger on the edge,
it is good enough. I go further than that.

HS is relatively thin material in most places so knocking off the edges
is pretty easy.

Dan
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