Author: "Joseph F. Giallo, II" <jgiallo@...> Time: Wed Oct 9, 2002 10:19 pm PDT Link
What is the best way to deburr the edges of skins on the HS, VS, etc.?
I have used a "v tool" from Avery as a first pass but it definitely doesn't
leave the edge smooth. I didn't want to use a scotchbrite pad or wheel for
fear of marring the surface in the process, not to mention removing the
corrosion protection afforded by the outer Al coating.
Regards,
Joe Giallo
rv7a HS
Author: "Dan Checkoway" <dan@...> Time: Thu Oct 10, 2002 5:45 am PDT Link
A good old file (finer side of a Vixen file works great) followed by a
Scotch Brite pad. Haven't seen any whiz-bang deburring tool that can
compete with that (unfortunately).
)_( Dan
RV-7 N714D (fuselage)
http://www.rvproject.com
----- Original Message -----
From: "Joseph F. Giallo, II" <jgiallo@m...>
To: "RV7and7A (E-mail)" <RV7and7A@yahoogroups.com>
Sent: Wednesday, October 09, 2002 7:18 PM
Subject: [RV7Yahoo] deburring skin edges
> What is the best way to deburr the edges of skins on the HS, VS, etc.?
>
> I have used a "v tool" from Avery as a first pass but it definitely
doesn't
> leave the edge smooth. I didn't want to use a scotchbrite pad or wheel for
> fear of marring the surface in the process, not to mention removing the
> corrosion protection afforded by the outer Al coating.
> Regards,
>
> Joe Giallo
> rv7a HS
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Author: "Randy Crothers" <rnvcrothers@...> Time: Thu Oct 10, 2002 5:45 am PDT Link
Joe,
I hope to benefit from other answers to your question. I have used my little air powered angle grinder with small circular scotch brite pads attached. They are about 2" in diameter and screw onto the arbor/pad on the die grinder with very coarse plastic threads. This works but must be done very carefully. Then I have rolled up pieces of 400 grit sand paper to work the little cutout areas. Wrapping the sand paper around a round file is also handy. I have also spent hours with red scotch brite pads on the edges of skins and structural pieces. It tears them up but it works. I am hoping to hear about an easier way.
Randy
----- Original Message -----
From: Joseph F. Giallo, II
To: RV7and7A (E-mail)
Sent: Wednesday, October 09, 2002 7:18 PM
Subject: [RV7Yahoo] deburring skin edges
What is the best way to deburr the edges of skins on the HS, VS, etc.?
I have used a "v tool" from Avery as a first pass but it definitely doesn't
leave the edge smooth. I didn't want to use a scotchbrite pad or wheel for
fear of marring the surface in the process, not to mention removing the
corrosion protection afforded by the outer Al coating.
Regards,
Joe Giallo
rv7a HS
Yahoo! Groups Sponsor
ADVERTISEMENT
Van's Air Force - World Wide Wing
www.vansaircraft.net
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]
Author: Doug Gray <dgra1233@...> Time: Thu Oct 10, 2002 7:45 am PDT Link
> A good old file
I have to agree, the good old file is the unspoken mainstay of the RV kit
builder.
For deburring I prefer the file and finish with approx 200 grit paper..
Doug Gray
Author: "Brad Bellamy" <brad.bellamy@...> Time: Thu Oct 10, 2002 8:47 am PDT Link
I've got two methods I like...
1) the fine side of a vixen file to get rid of the really rough stuff then a
quick swipe with the edge debur tool to get rid of sharp edges then 120 or
240 grit paper for final smoothing.
2) 3M scotch-brite finishing sander - fine 9416NA available at Walmart for
about $5. I use a drill press when I can and a drill motor when the drill
press won't work. This also works great for thicker parts made out angle.
If you use the finishing sander be careful to move the part a lot so you
don't cut a groove in the wheel. I also tried the medium, but decided to
stay with just fine.
I think solution 1 is the cheapest and fairly low labor - better than just
using sandpaper!
I think solution 2 is more expensive, but easier and fast. It works a lot
better than solution 1 when the edge is not straight like on ribs and some
of the wing brackets you have to make.
I started with solution 1, but have switched to solution 2 most of the time
(I still break out the file for initial smoothing of really rough parts and
sandpaper to get into smaller areas).
Brad
Austin
7A
N74BE reserved
>> A good old file
>I have to agree, the good old file is the unspoken mainstay of the RV kit
>builder.
>
>For deburring I prefer the file and finish with approx 200 grit paper..
>
>Doug Gray
Author: "dimplemaster" <johnsiebold@...> Time: Thu Oct 10, 2002 12:26 pm PDT Link
Joe,
These is my process.
On straight or mildly curved edges, of which there are seeming miles
on the airplane, I start with the "v" deburring tool to knock off the
big chunks and somewhat radius the edge. Don't' worry about loosing
alclad - none exist on a sheared edge, anyway.
Here's the big time saver: use a 2" or so diameter Scotch-Brite or
clone wheel in a die grinder. Hold it so the wheel actually acts
like a wheel in wanting to roll along the edge, not across it. You
might first dress the wheel by wearing shallow grooves in its face
with some scrap. The workpiece will track in the groove and in one
fast pass you will polish and deburr the workpiece. Works like a
champ and there's no chatter. Do this before fluting edges, like
ribs. This technique is great in lightening holes, although the "v"
tool gets canted over. After the grooves wear over 3/16" deep,
there's a propensity to bind on the material if you tip the tool a
bit. Abandon that groove.
In corners, on tabs, and short lengths you must resort to very fine
files, needle style for the inside bend reliefs and small holes.
Files still leave file marks, so you may want to follow up with hand-
held pads.
John Siebold
Author: "Joseph F. Giallo, II" <jgiallo@...> Time: Thu Oct 10, 2002 12:45 pm PDT Link
Thanks to all who replied and those that may yet have ideas to suggest. The
suggestions are helpful and I'll try them all to see which one(s) works best
for me.
Regards,
Joe Giallo
-----Original Message-----
From: dimplemaster [mailto:johnsiebold@a...]
Sent: Thursday, October 10, 2002 12:56 PM
To: RV7and7A@yahoogroups.com
Subject: [RV7Yahoo] Re: deburring skin edges
Joe,
These is my process.
On straight or mildly curved edges, of which there are seeming miles
on the airplane, I start with the "v" deburring tool to knock off the
big chunks and somewhat radius the edge. Don't' worry about loosing
alclad - none exist on a sheared edge, anyway.
Here's the big time saver: use a 2" or so diameter Scotch-Brite or
clone wheel in a die grinder. Hold it so the wheel actually acts
like a wheel in wanting to roll along the edge, not across it. You
might first dress the wheel by wearing shallow grooves in its face
with some scrap. The workpiece will track in the groove and in one
fast pass you will polish and deburr the workpiece. Works like a
champ and there's no chatter. Do this before fluting edges, like
ribs. This technique is great in lightening holes, although the "v"
tool gets canted over. After the grooves wear over 3/16" deep,
there's a propensity to bind on the material if you tip the tool a
bit. Abandon that groove.
In corners, on tabs, and short lengths you must resort to very fine
files, needle style for the inside bend reliefs and small holes.
Files still leave file marks, so you may want to follow up with hand-
held pads.
John Siebold
Yahoo! Groups Sponsor
ADVERTISEMENT
Van's Air Force - World Wide Wing
www.vansaircraft.net
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]
Author: "jpiavis" <piavis@...> Time: Thu Oct 10, 2002 11:14 am PDT Link
I guess I've had pretty good success using a good sharp file to
smooth out the edge, then run over with the 2" 3M Scotchbrite wheel
to polish. So far, works great. The file will smooth out the edge
enough so all you need is a quick pass with the wheel. Don't sweat
the issue of the wear on the outter surface. At most you'll get a
1/16" or 1/8" strip along the edge as the 3M wheel wears a groove.
Jim
-7 Elevators
--- In RV7and7A@y..., "Joseph F. Giallo, II" <jgiallo@m...> wrote:
> What is the best way to deburr the edges of skins on the HS, VS,
etc.?
>
> I have used a "v tool" from Avery as a first pass but it definitely
doesn't
> leave the edge smooth. I didn't want to use a scotchbrite pad or
wheel for
> fear of marring the surface in the process, not to mention removing
the
> corrosion protection afforded by the outer Al coating.
> Regards,
>
> Joe Giallo
> rv7a HS
Author: "whtrocker" <whtrocker@...> Time: Thu Oct 10, 2002 11:32 am PDT Link
--- In RV7and7A@y..., "Randy Crothers" <rnvcrothers@a...> wrote:
> Joe,
> I hope to benefit from other answers to your question. I have
used my little air powered angle grinder with small circular scotch
brite pads attached. They are about 2" in diameter and screw onto
the arbor/pad on the die grinder with very coarse plastic threads.
This works but must be done very carefully. Then I have rolled up
pieces of 400 grit sand paper to work the little cutout areas.
Wrapping the sand paper around a round file is also handy. I have
also spent hours with red scotch brite pads on the edges of skins and
structural pieces. It tears them up but it works. I am hoping to hear
about an easier way.
> Randy
> ----- Original Message -----
> From: Joseph F. Giallo, II
> To: RV7and7A (E-mail)
> Sent: Wednesday, October 09, 2002 7:18 PM
> Subject: [RV7Yahoo] deburring skin edges
> What is the best way to deburr the edges of skins on the HS, VS,
etc.?
>
> I have used a "v tool" from Avery as a first pass but it
definitely doesn't
> leave the edge smooth. I didn't want to use a scotchbrite pad or
wheel for
> fear of marring the surface in the process, not to mention
removing the
> corrosion protection afforded by the outer Al coating.
> Regards,
>
> Joe Giallo
> rv7a HS
> Yahoo! Groups Sponsor
> ADVERTISEMENT
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.
> [Non-text portions of this message have been removed]