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Old 05-16-2008, 03:02 AM   #1
Sky Sharkster
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Default Making Hinges From Iron-On Covering

For those of you who may have been following the Corben Ace build thread, sorry for the departure. I thought this might be more useful as a separate thread. But I'll return to the build thread soon!
I've only done this with small electrics and Microlite, SoLite material. Can't swear it will work as well with heavier films or higher-speed models.
First, the tools; New X-Acto blade, new single-edge razor blade, straight edge, covering, marker, trim iron, piece(s) to be covered, these should be fine-sanded and dust-free. A piece of poster board is a good work surface.
Here we're covering a fin and rudder. I've cut 2 covering pieces, large enough for the parts when attached.
Begin by covering the fin, tacking the covering to the leading edge, trailing edge, top + bottom.
Place the rudder in the correct vertical position, but with 30-40 degrees offset away from the covered side.


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Old 05-16-2008, 03:12 AM   #2
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Default

Nice work! I'm glad to see I am not the only one that makes hinges out of the film covering. I thought I was weird.

Here is my last covering job like you mentioned above.


Attachment 66152 Tape fin and rudder down with a small gap so they don't move.

Attachment 66153 Cover with your choice of film on one side, then the other ensuring film goes down into the beveled edge on the rudder.

Attachment 66154 Ops check to make sure the rudder moves easily. Repeat for elevator.

I really like this method and have given up on the 3M Dubro tape hinge method except for foam planes where no film is used.

Frank

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Old 05-16-2008, 03:19 AM   #3
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Default Iron-On Hinges, Part 2

Holding the offset, cover the rudder, tacking all the edges.
Make slits and cuts to allow the covering up along the edges
Iron the excess up along the edges.
Trim with a single-edge blade.
Cover the other side, same drill, don't forget the rudder offset, away from the side you're covering.
Cut away excess without wrapping.
Shrink both sides evenly, using the point of the iron to push the material into the hingeline equally from both sides.
Done!


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Old 05-16-2008, 03:25 AM   #4
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Default Another Way To Do It!

Hi Frank,
Sorry I didn't see your post, I was adding the second part of mine. I like the idea of the tape, the gap size isn't too critical as long as it results in a free movement with enough deflection.
Great work!
Ron
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Old 05-16-2008, 03:29 AM   #5
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Hey no worries Ron. If I knew you had a part 2 of yours I would have waited. You can remove it if you wish and I can repost it here.

Frank

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Old 05-16-2008, 03:33 AM   #6
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Default Twice The Fun!

Hi Frank,
I'll just leave it, folks can see a couple of different approaches to the same idea. They both work!
Ron
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Old 05-16-2008, 03:02 PM   #7
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Here is another way to make hinges from covering, either film or fabric. It is best to apply the hinges before covering when using this method.


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Old 05-16-2008, 03:59 PM   #8
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Hey Ron and Frank -

Great tutorials! I've yet to utilize a covering hinge yet, perhaps because I've built very lightweight planes and tended towards Microlite and Econokote coverings, and haven't been impressed with the holding power of the adhesive. I'm not confident that it would necessarily hold up under the stresses of some maneuvers, and so have hesitated to employ it.

That said, I've seen the method that Rodneh has shared, but wasn't sure exactly how to make it. Having seen his simple but clear drawing, now I know! More work, no doubt, but I think I'll have to try that eventually - seems like it might be a bit stronger (at least the way I cover planes!).

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