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  #1  
Old 03-14-2019, 10:27 AM
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kjowen kjowen is offline
 
Join Date: Mar 2012
Location: Marietta, GA
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Default Suggestions to finish this off?

RV-8, Right Elevator.
I am fitting everything prior to final assembly of the component.
I still need a little more sanding on the E-612 fiberglass tip as it sits proud of the weight.
Just wondering what others have done in this area to finish off the forward edge?
Maybe a flox mixture to smooth over the lead counter weight?

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Last edited by kjowen : 03-14-2019 at 10:29 AM.
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  #2  
Old 03-14-2019, 10:36 AM
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Raymo Raymo is offline
 
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A little epoxy and micro will do the job. Flox will not sand smooth.
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  #3  
Old 03-14-2019, 10:46 AM
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kjowen kjowen is offline
 
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Default Sorry... used the wrong term...

Quote:
Originally Posted by Raymo View Post
A little epoxy and micro will do the job. Flox will not sand smooth.
Micro balloons is what I meant since this area is non-structural and is just for filling and smoothing the surface. thanks!
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  #4  
Old 03-14-2019, 11:56 AM
rockwoodrv9 rockwoodrv9 is offline
 
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One thing to consider is if you want the joint to disappear or not. My experience on boats is to make it go away, it needs glass over the joint or it will crack. You could fill up to it and tool or sand a joint. Try it and see how it looks. Worst case, sand it off and do it again.

Maybe make a mock up and try it first?
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  #5  
Old 03-14-2019, 04:28 PM
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Carl Froehlich Carl Froehlich is offline
 
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Micro to fill the voids, sand then a couple of bids of glass. Some micro over the glass to fair it in.

Without the glass the micro will eventually crack and you will see it in the paint.

Carl

Last edited by Carl Froehlich : 03-14-2019 at 05:43 PM.
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  #6  
Old 03-14-2019, 10:15 PM
climberrn climberrn is offline
 
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Location: Carson City, NV
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Micro has worked fine for me for 500 hours. No cracks yet. Did use red locktite on those bolts. Don’t want those things backing out, ever....

Also, might want to consider some strategically placed Nutplates near the forward edge of the counterweight. Really convenient for adding weight for balancing after paint.
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Last edited by climberrn : 03-14-2019 at 10:18 PM. Reason: Nutplates
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  #7  
Old 03-15-2019, 06:49 PM
MIKE JG MIKE JG is offline
 
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Quote:
Originally Posted by climberrn View Post
Also, might want to consider some strategically placed Nutplates near the forward edge of the counterweight. Really convenient for adding weight for balancing after paint.
Ooh, that's a nice tip, adding that one to the collection of "things to do that are not in the plans".

Thanks!
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  #8  
Old 03-20-2019, 07:14 PM
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kjowen kjowen is offline
 
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Default Nutplates?

Can you elaborate?

Quote:
Originally Posted by MIKE JG View Post
Ooh, that's a nice tip, adding that one to the collection of "things to do that are not in the plans".

Thanks!
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  #9  
Old 03-20-2019, 07:26 PM
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wirejock wirejock is offline
 
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Default Balance nut plates

Quote:
Originally Posted by kjowen View Post
Can you elaborate?
Take a look at the rib. You'll see a tooling hole pretty close to the counterweight. Install a nutplate there. A 3/16" works for the hole size. A bolt can be installed with lead or tungsten washers for final balance.
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  #10  
Old 03-21-2019, 07:55 AM
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DanH DanH is offline
 
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http://www.vansairforce.com/communit...7&postcount=25

With the lead present in this assembly, you can skip the core plate step. Just fill all around the edge, between the glass and the lead, cure, sand to shape, and add a few plies of glass fabric. It's pretty much what Carl said.
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Last edited by DanH : 03-21-2019 at 07:58 AM.
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