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rv10rob(at)gmail.com
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 Posted: Wed May 27, 2009 8:10 pm Post subject: trimming cabin cover door openings |
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Saying it looks like a drunk monkey made the scribe lines on my cabin cover is probably unfair to drunk monkeys. At least I have options: at times I have 2 or 3 scribe lines to choose from in a particular area, and in other places I get to create my own line.
Joking aside, I'm contemplating whether to trim to the lines around the door openings now or wait until I'm fitting the doors. I need to trim at least part of the way around the cabin attachment screw holes to get a countersink in there. I heard at least one person say they overtimmed in this area by following the lines, hence my hesitation doing it now. Anyone have a recommendation?
Thanks...
-Rob
[quote][b]
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kearney
Joined: 20 Sep 2008
Posts: 563
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| Posted: Wed May 27, 2009 8:54 pm Post subject: trimming cabin cover door openings |
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Rob
I had exactly the same concern; in fact I called Van’s about the size of the gap between the door and the lower door flange on the canopy.
Initially, when drilling the screw holes, I cut notches in the canopy cover to allow access with a drill. I clecoed the holes from the back site and haven’t final drilled / countersunk the holes yet. The cleco tips don’t interfere with the doors so this is not an issue. The attached pix is not great, but you can see where I cut notches for the clecoes. Later I inserted the clecoes from under the door sill.
Prior to fitting the doors, I cut to about ¼” of the scribe lines. I was concerned about the apparent gap between the door and canopy when I was setting up the doors for gluing. What I found was that this gap all but disappeared (except for the lower flange) when the doors were cut to fit flush with the fuse / canopy door opening. I ended up cutting back to and in some places past the scribe lines. I was really surprised at how much the gap decreased. The place to be careful is the lower door flange. If you trim this to the scribe line, you may find the gap to be much larger than you desire (depending on what you are using for weather seal.
Understanding your concern, I would cut the canopy back so the inner door half sits easily in the door opening without making contact with the canopy flange. After gluing the door, be prepared to trim back further as required when fitting the door to flit flush in the opening. It is more work but less stress.
Cheers
Les
#40643 – A friend of drunk monkeys
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rob Kochman
Sent: May-27-09 10:09 PM
To: rv10-list(at)matronics.com
Subject: trimming cabin cover door openings
Saying it looks like a drunk monkey made the scribe lines on my cabin cover is probably unfair to drunk monkeys. At least I have options: at times I have 2 or 3 scribe lines to choose from in a particular area, and in other places I get to create my own line.
Joking aside, I'm contemplating whether to trim to the lines around the door openings now or wait until I'm fitting the doors. I need to trim at least part of the way around the cabin attachment screw holes to get a countersink in there. I heard at least one person say they overtimmed in this area by following the lines, hence my hesitation doing it now. Anyone have a recommendation?
Thanks...
-Rob
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pitts_pilot(at)bellsouth.
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| Posted: Thu May 28, 2009 5:43 am Post subject: trimming cabin cover door openings |
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I omitted the 'read the whole section' step when I trimmed my first door
and ended up with little contact area to work with ....... trimmed to
the 'almost finished' line. So I have clecos everywhere that go into
the 'air space' between door inner shell and cabin top. At the bottom
of the door, I'll have to use strips to press the bottom glue line
together. But I think that having the clecos will actually help in the
gluing process.
But my alignment holes came out OK, so there's something going on that I
don't understand.
Linn
Rob Kochman wrote:
| Quote: | Saying it looks like a drunk monkey made the scribe lines on my cabin
cover is probably unfair to drunk monkeys. At least I have options: at
times I have 2 or 3 scribe lines to choose from in a particular area,
and in other places I get to create my own line.
Joking aside, I'm contemplating whether to trim to the lines around the
door openings now or wait until I'm fitting the doors. I need to trim
at least part of the way around the cabin attachment screw holes to get
a countersink in there. I heard at least one person say they overtimmed
in this area by following the lines, hence my hesitation doing it now.
Anyone have a recommendation?
Thanks...
-Rob
*
*
------------------------------------------------------------------------
Checked by AVG - www.avg.com
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kearney
Joined: 20 Sep 2008
Posts: 563
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| Posted: Thu May 28, 2009 6:45 am Post subject: trimming cabin cover door openings |
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Linn
I am not sure if I understand your problem about the bottom of the door, but
if I have got it right there may be a better solution for you.
On my first door I had a gap on the bottom door seam. I found that the epoxy
coverage wasn't what it should be and much of the door seam opened up. To
fix, I pumped *lots* and *lots* of thickened epoxy into the seam and then
clamped with 20 or so cleco clamps. I folded packing tape over the seam
first so the clamps didn't get epoxied to the door. The result was quite
good.
I found a 10cc syringe (of the type used to dispense meds to kids) was able
to suck up and dispense thickened epoxy.
If you have trimmed too much off the door bottom to cleco it into door
opening per the plans, you may find the above approach helpful. Just leave
the bottom seam unglued do it after the sides and top have been glued.
As far as alignment holes were concerned, that was my problem - they didn't
align nor did the placement (in case of the front tab) match the plans. For
such position sensitive parts, I am very disappointed with the Van's QC.
Cheers
Les
#40643 - living in a f/g world
--
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Tim Olson
Joined: 25 Jan 2007
Posts: 2879
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| Posted: Thu May 28, 2009 8:13 am Post subject: trimming cabin cover door openings |
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You may want to just look at other people's RV-10's and photos
of flying RV-10's. I worried I'd trim too much too, but it
turns out it's not really one of those major worries. I thought
I did at one point but then I ended up trimming more. The
scribe lines on mine were the same way. Sometimes 2 or 3 lines,
and you don't know which one to use. But, it all works out.
Tim Olson - RV-10 N104CD
do not archive
Rob Kochman wrote:
| Quote: | Saying it looks like a drunk monkey made the scribe lines on my cabin
cover is probably unfair to drunk monkeys. At least I have options: at
times I have 2 or 3 scribe lines to choose from in a particular area,
and in other places I get to create my own line.
Joking aside, I'm contemplating whether to trim to the lines around the
door openings now or wait until I'm fitting the doors. I need to trim
at least part of the way around the cabin attachment screw holes to get
a countersink in there. I heard at least one person say they overtimmed
in this area by following the lines, hence my hesitation doing it now.
Anyone have a recommendation?
Thanks...
-Rob
|
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pitts_pilot(at)bellsouth.
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| Posted: Thu May 28, 2009 11:06 am Post subject: trimming cabin cover door openings |
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Les, thanks for the note! This morning we glued the pilots door halves
together. Attached is picture. You can see the tabs I used to hold the
bottom door tight to the fuselage. The door halves fit really well
together, and did fit the contour of the fuselage with the exception of
the very top where the hinges go. Also, the angle of the two halves was
different in the area of the third cleco up where the windshield will
be, and I just filled that with epoxy/milled fiber. All in all, the
gluing went well, but it was really messy!!!
Now comes the trimming/sanding/filling/sanding/contouring .....
Passenger door goes together next week!! ... Should be a whole lot
easier since I didn't trim the passenger side like the pilot side!!!
Linn
Les Kearney wrote:
| Quote: |
Linn
I am not sure if I understand your problem about the bottom of the door, but
if I have got it right there may be a better solution for you.
SNIP!
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AirMike
Joined: 27 Feb 2007
Posts: 514
Location: Nevada
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| Posted: Thu May 28, 2009 8:52 pm Post subject: trimming cabin cover door openings |
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I too found the scribe lines confusing. The doors are a big project and they will never be as perfect as you want them. But do not worry too much about over-cutting the door (except if you disturb the glue joint). You can always build up the cabin top flange to meet the door with epoxy and F/G tape or tape/micro-baloons combo.
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See you OSH '18
Q/B - sold. |
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rv10rob(at)gmail.com
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| Posted: Fri May 29, 2009 8:45 pm Post subject: trimming cabin cover door openings |
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Thank you all for the tips. Sounds like I should be reasonably conservative for now and expect to cut more later, but not worry about it too much. I will now have to go find something else to worry about.
Thanks again..
-Rob
On Thu, May 28, 2009 at 11:56 AM, linn <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
| Quote: | Les, thanks for the note! This morning we glued the pilots door halves together. Attached is picture. You can see the tabs I used to hold the bottom door tight to the fuselage. The door halves fit really well together, and did fit the contour of the fuselage with the exception of the very top where the hinges go. Also, the angle of the two halves was different in the area of the third cleco up where the windshield will be, and I just filled that with epoxy/milled fiber. All in all, the gluing went well, but it was really messy!!!
Now comes the trimming/sanding/filling/sanding/contouring .....
Passenger door goes together next week!! ... Should be a whole lot easier since I didn't trim the passenger side like the pilot side!!!
Linn
Les Kearney wrote:
| Quote: | --> RV10-List message posted by: "Les Kearney" <kearney(at)shaw.ca (kearney(at)shaw.ca)>
Linn
I am not sure if I understand your problem about the bottom of the door, but
if I have got it right there may be a better solution for you.
|
SNIP!
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--
Rob Kochman
RV-10 Wings
Woodinville, WA (near Seattle)
http://kochman.net/N819K
[quote][b]
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