Today's Message Index:
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1. 07:05 PM - Dents in VS Skin from flush set..... ARGGGGGHHHHHH (Tim Jennings)
2. 07:24 PM - Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH (Brian Lester)
3. 07:34 PM - Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH (Kelly McMullen)
4. 10:44 PM - Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH (David Saylor)
Message 1
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| Subject: | Dents in VS Skin from flush set..... ARGGGGGHHHHHH |
Alright, I was making great progress and then used my non dominant hand to
rivet the second side of the VS skin and managed to make about 6 dents in
the skin along the front spar before I realized the poor form and
consequent mistake. They are absolutely noticeable. In a "done is better
than perfect" moment I kept riveting once I was cooled off about the
mistake so that I would have a finished part. Now I am looking for a
filler that I can use to make the dents go away before I drill out all the
rivets and try a second time with a NEW skin. Is there anyone out there or
"has a friend" who has made a mistake like this before and lived to tell
the tale while using a filler that has stood the test of time? I have lots
of experience with Bondo from my motorcycle painting days and know it is
NOT up to this task. Flex/expand/contract/vibrate, all things that would
separate brittle Bondo from the skin making it unsuitable for this task. I
am hopeful there is a better product out there for aviation before I crack
out the drill and try my hand at a second skin?
Thanks,
Tim
Message 2
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| Subject: | Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH |
Leave it be, at least for now.
At least that was my decision when I had some =9Cimperfections
=9D. Don=99t worry
about fixing dents if it=99s just a surface imperfection. Build on an
d learn
from it.
When you get to final assembly (or close to it) look at it again with a
fresh set of eyes and decide if you need a new skin or if epoxy and micro
is fine. (Heck if you get it painted ask he shop to make it look better if
you are concerned. )
Just my 2 cents.
-Brian
On Sun, May 20, 2018 at 10:09 PM Tim Jennings <tjennings07@gmail.com> wrote
:
> Alright, I was making great progress and then used my non dominant hand
> to rivet the second side of the VS skin and managed to make about 6 dents
> in the skin along the front spar before I realized the poor form and
> consequent mistake. They are absolutely noticeable. In a "done is bette
r
> than perfect" moment I kept riveting once I was cooled off about the
> mistake so that I would have a finished part. Now I am looking for a
> filler that I can use to make the dents go away before I drill out all th
e
> rivets and try a second time with a NEW skin. Is there anyone out there
or
> "has a friend" who has made a mistake like this before and lived to tell
> the tale while using a filler that has stood the test of time? I have lo
ts
> of experience with Bondo from my motorcycle painting days and know it is
> NOT up to this task. Flex/expand/contract/vibrate, all things that would
> separate brittle Bondo from the skin making it unsuitable for this task.
I
> am hopeful there is a better product out there for aviation before I crac
k
> out the drill and try my hand at a second skin?
>
> Thanks,
> Tim
>
Message 3
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| Subject: | Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH |
Very good advice. I believe one filler that will work is "Superfill",
which is a mix of epoxy resin and high percentage of micro-balloons.
Available at AC Spruce and similar vendors.
On 5/20/2018 7:21 PM, Brian Lester wrote:
> Leave it be, at least for now.
> At least that was my decision when I had some imperfections. Dont
> worry about fixing dents if its just a surface imperfection. Build on
> and learn from it.
> When you get to final assembly (or close to it) look at it again with a
> fresh set of eyes and decide if you need a new skin or if epoxy and
> micro is fine. (Heck if you get it painted ask he shop to make it look
> better if you are concerned. )
>
> Just my 2 cents.
>
> -Brian
> On Sun, May 20, 2018 at 10:09 PM Tim Jennings <tjennings07@gmail.com
> <mailto:tjennings07@gmail.com>> wrote:
>
> Alright, I was making great progress and then used my non dominant
> hand to rivet the second side of the VS skin and managed to make
> about 6 dents in the skin along the front spar before I realized the
> poor form and consequent mistake. They are absolutely noticeable.
>
Message 4
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| Subject: | Re: Dents in VS Skin from flush set..... ARGGGGGHHHHHH |
+1 for superfill. It's the "Cadillac of Bondo". Only downside is that it
takes a lot longer to cure than polyester--count on at least several hours.
Those dents are like the first door ding on a new car. They hurt the worst
but it you'll get past it. Learning how to fix the mistake is pretty
valuable.
--Dave
On Sun, May 20, 2018 at 7:02 PM, Tim Jennings <tjennings07@gmail.com> wrote:
> Alright, I was making great progress and then used my non dominant hand
> to rivet the second side of the VS skin and managed to make about 6 dents
> in the skin along the front spar before I realized the poor form and
> consequent mistake. They are absolutely noticeable. In a "done is better
> than perfect" moment I kept riveting once I was cooled off about the
> mistake so that I would have a finished part. Now I am looking for a
> filler that I can use to make the dents go away before I drill out all the
> rivets and try a second time with a NEW skin. Is there anyone out there or
> "has a friend" who has made a mistake like this before and lived to tell
> the tale while using a filler that has stood the test of time? I have lots
> of experience with Bondo from my motorcycle painting days and know it is
> NOT up to this task. Flex/expand/contract/vibrate, all things that would
> separate brittle Bondo from the skin making it unsuitable for this task. I
> am hopeful there is a better product out there for aviation before I crack
> out the drill and try my hand at a second skin?
>
> Thanks,
> Tim
>
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