03-12-2007, 09:34 PM
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Incurable SEMROC Fan
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Join Date: Mar 2005
Location: Twin Falls, Idaho, USA
Posts: 2,319
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Go to the source!
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Originally Posted by snaquin
I'm going to try this on a future build but our humidity down here on the Gulf Coast is sometimes extreme and I'm not sure the adhesive on the paper would stay stuck even if I rubbed it down well. Have you ever had any problems with it wanting to lift back up?
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Steve,
Since I live in the high desert of Southern Idaho (which is even drier [but not hotter] than Phoenix), this is where your mileage may vary *radically* from mine. 
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Do you apply the paper to one side first and then trim around it and then do the other side or just cut the paper out like a fin pattern and then apply it? What works best for you?
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If my fins aren't laser cut, I stack sand them *first,* as well as lightly sanding the surfaces to "get the bumps out."
Then I apply the paper to one side, and place that side of the fin down so I can see to trim it with an X-acto knife (I put a metal ruler on top of the fin to help make sure my cuts are straight). Then I do the same thing for the other side, and rub both sides down with the Sharpie cap.
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I know you mentioned sealing the edges with CA.
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Yep, that's the final step.
As I've done before, I *highly* recommend that you all buy David J. Miller's "Interrogator" from Sirius Rocketry, which is where I learned this fin-finishing technique.
18mm version:
http://www.siriusrocketry.com/Interrogator01.htm
24mm version:
http://www.siriusrocketry.com/Interrogator02.htm
Cheers,
__________________
Jay Goemmer
"Centuri Guy"/"Tau Zero"
YORF Member 28
Semroc SAM #0029
NAR 86131
"I think about organizing things all the time. Never seems to happen. I find something that piques my interest and I'm off on a quest. Or a Centuri.   "
--Bill Eichelberger, 02/22/2022
“Centuri fret buzz in an updated form.”
Bill “Wallyum” Eichelberger re: Estes Flutter-By
03 Sept 2014
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