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Old 11-30-2013 | 06:39 PM
  #73  
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flyingagin
 
Joined: Feb 2009
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From: Orange, TX
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The wings have been jogged onto the parallelogram jigs. I have set them at 7" for a 7" gap. Just under a full chord (average) gap. Any more and it just don't look right, looks like you could drive a Mack truck between them.

So I have been fight and fight with trying to make pads for the carbon rods to set in. The problem is that they have to have holes drilled in them for the rods. Compound angle holes. About six attempts and the same number of utter failures.

I finally gave up. I slept on it after I gave up and came up with something different.

I jigged the rods into place. Even that was a multi try effort. But I got it.

I will next glue some scarp balsa stock to all of them front to back, top and bottom. That should hold the strut assemblies together.

I still have to have the ply mounting pads at all four corners. I was trying to drill (at compound angles) 1/4"birch ply. No good, just can't get the angles correct. So I have a different tack. I will make the pads out of multiple layers of 1/16" birch. Drill the holes in each piece, but then cut from the edges to the holes making slots. One piece with the slots facing in and the other facing out. I can then epoxy the pads together as opposite layers.

It is either that or some really big sloppy holes, and I don't think that will work as the carbon rods will have to be securely epoxied into the holes, and if the joints fail bye bye airplane.

I sure hope somebody else has better ideals than I do, if so chime in.

Ken
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