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woxofswa
Joined: 12 Aug 2008
Posts: 349
Location: AZ
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 Posted: Sun Oct 04, 2009 6:00 pm Post subject: skin pimples |
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As I was riveting my QB wing skin, my well meaning neighbor helped me buck some rivets. When I do it myself I keep rags on the lower inside skin in case the bucking bar gets dropped, but unfortunately, the rags didn't get moved enough and sure enough, we ended up with a couple of skin "pimples" on the upper outer skin surface.
Is there a prescribed way to deal with said pimples?
I thought of maybe trying a spring punch and then superfil, but haven't tried that yet.
Thanks in advance.
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Myron Nelson
Mesa, AZ
Flew May 10 2014 |
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ricksked(at)embarqmail.co
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| Posted: Sun Oct 04, 2009 6:22 pm Post subject: skin pimples |
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Tell the neighbor thanks but no thanks..... Pop them back in with a body hammer and fill them prior to paint....
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Strasnuts
Joined: 10 Feb 2009
Posts: 502
Location: Salt Lake City, UT
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| Posted: Sun Oct 04, 2009 6:24 pm Post subject: Re: skin pimples |
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I'm sure there are better methods but I got every little bump and wave out of my skins by pushing the other end of a sharpie against the aluminum. Use the edge of the back of the marker (not a fine point). It is just soft enough plastic to work with the aluminum. Don't hammer on the skin unless you back it up with a lead shot bag or similar. If you back up the skin with something hard you will thin the aluminum and oil-can it. I think most people just make sure it is an innee and not an outee and fill it in before painting with filler.
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40936
RV-10 SB N801VR Flying
780 Hours
SuperSTOL 60 hours |
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AV8ORJWC
Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"
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| Posted: Sun Oct 04, 2009 8:39 pm Post subject: skin pimples |
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Kent White of OSH Metalworking Class fame has a technique for shrinking the material. It would be considered advanced by some RV-10 builders. There is a hammering technique to limit the additional stretch of material that is worthy of planishing before resorting to weight adding body fillers.
Wetsuit material laid inside the work area is a great line of defense for natural human occurances.
John Cox
From: woxofswa
Sent: Sun 10/4/2009 7:00 PM
To: rv10-list(at)matronics.com
Subject: RV10-List: skin pimples
[quote]--> RV10-List message posted by: "woxofswa" <woxof(at)aol.com> As I was riveting my QB wing skin, my well meaning neighbor helped me buck some rivets. When I do it myself I keep rags on the lower inside skin in case the bucking bar gets dropped, but unfortunately, the rags didn't get moved enough and sure enough, we ended up with a couple of skin "pimples" on the upper outer skin surface. Is there a prescribed way to deal with said pimples? -------- Myron Nelson Mesa, AZ Emp completed, legacy build fuse in progress Read this topic online here: http://forums.matronics.com/viewtopic.php?p=266508#266508
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planesmith(at)hotmail.com
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| Posted: Mon Oct 05, 2009 7:41 am Post subject: skin pimples |
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If you are interested in pursuing this further Kent has a DVD at https://www.tinmantech.com/html/vid_basic_damage_repair_alu.php. Not all of the techniques are appropriate for working with2024 aluminum C but some work very well.
Vern Smith #40324
Subject: RE: skin pimples
From: johnwcox(at)pacificnw.com
To: rv10-list(at)matronics.com
Date: Sun C 4 Oct 2009 21:31:47 -0700
Kent White of OSH Metalworking Class fame has a technique for shrinking the material. It would be considered advanced by some RV-10 builders. There is a hammering technique to limit the additional stretch of material that is worthy of planishing before resorting to weight adding body fillers.
Wetsuit material laid inside the work area is a great line of defense for natural human occurances.
John Cox
From: woxofswa
Sent: Sun 10/4/2009 7:00 PM
To: rv10-list(at)matronics.com
Subject: RV10-List: skin pimples
| Quote: | --> RV10-List message posted by: "woxofswa" <woxof(at)aol.com>
As I was riveting my QB wing skin C my well meaning neighbor helped me buck some rivets. When I do it myself I keep rags on the lower inside skin in case the bucking bar gets dropped C but unfortunately C the rags didn't get moved enough and sure enough C we ended up with a couple of skin "pimples" on the upper outer skin surface.
Is there a prescribed way to deal with said pimples?
--------
Myron Nelson
Mesa C AZ
Emp completed C legacy build fuse in progress
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=266508#266508
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