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Old Jan 19, 2010, 08:40 PM
Stay in it!!!!
Riverside, California, United States
Joined Aug 2004
5,050 Posts
Now it is left to cure with the wiper down so the epoxy settles in the mylar and does not move forward or back. Tomorrow I will pull the mylar off and sand any excess wiper away off the front edge and then the elevator is finished. I will take more pics of the final process tomorrow.
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Old Jan 19, 2010, 08:50 PM
Go Faster!!
Jason Lilly's Avatar
San Diego, CA
Joined Apr 2004
544 Posts
You make it look easy, great demo Joe!
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Old Jan 19, 2010, 08:56 PM
Stay in it!!!!
Riverside, California, United States
Joined Aug 2004
5,050 Posts
It is easy dude! I found that I do a better job when I dont mask off the surrounding areas and change gloves often. Then you can see even the smallest amount of epoxy if you make a mess of it.
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Old Jan 19, 2010, 09:29 PM
Just Fly it
USA, CA, Bakersfield
Joined Jul 2006
2,046 Posts
Thanks Joe,

I really learned something. Possibly there are quite a few insights that will allow even me to try it out. I will be looking for Mylar.
John
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Old Jan 19, 2010, 10:23 PM
gas tires and oil
prplgoat's Avatar
malad, idaho
Joined Dec 2004
2,450 Posts
good stuff!
nice pics too!

marty
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Old Jan 19, 2010, 11:11 PM
Stay in it!!!!
Riverside, California, United States
Joined Aug 2004
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Thanks Guys. Now hopefully it turns out as good as it started.
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Old Jan 20, 2010, 10:09 AM
pushing the envelope
rcgroupie's Avatar
USA, CA, Los Angeles
Joined Jun 2005
533 Posts
This helped me visualize the concept, a section of a wing wiper from a prev. post.
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Old Jan 20, 2010, 01:20 PM
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golem's Avatar
Maryland, USA
Joined Mar 2006
896 Posts
Very nice tutorial Joe!

I'm assuming the wiper could be made as thick as one would want but it does seem most are actually pretty thin in cross-section. Is damage to them at all common? I'm guessing not since they seem pretty well protected when surfaces are more often then not in the neutral position during transport and storage.

Cheers!
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Old Jan 20, 2010, 02:37 PM
Stranger in a land
Haole's Avatar
Hawaii
Joined Dec 2007
571 Posts
Thanks very much for the photo tutorial. Great info and you make it look easy!

Carl
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Old Jan 20, 2010, 03:07 PM
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KurtMc's Avatar
Sacramento, CA
Joined Sep 2003
1,154 Posts
Solid gold.... thanks Joe.
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Old Jan 20, 2010, 03:53 PM
Registered User
Sydney
Joined Apr 2009
716 Posts
I use an almost identical method, and have found I need a second set of hands to help lock the end of the mylar inside the bottom edge of the tailplane at the final step. A small annoyance but still a very neat method and well explained Joe.

John
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Old Jan 20, 2010, 05:22 PM
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Riverside, California, United States
Joined Aug 2004
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Once cured, I open up the surface to 90 degrees to allow the mylar and wiper to come free of the skin. Peel up the mylar and tape. Next is to sand the wiper down to about 1/2" wide.
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Old Jan 20, 2010, 05:24 PM
Stay in it!!!!
Riverside, California, United States
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I couldnt take a picture while I was sanding but here is the sander I use while keeping the surface taped wide open.
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Old Jan 20, 2010, 05:29 PM
Stay in it!!!!
Riverside, California, United States
Joined Aug 2004
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Once sanded short enough the wiper will clear and you can close the control surface. All done and ready for final assembly.
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Old Jan 20, 2010, 05:35 PM
Stay in it!!!!
Riverside, California, United States
Joined Aug 2004
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I finished up all the wipers on the wing today. Just a couple more things to do and I can start putting gear in this new model.
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