The illusive hole

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Postby Shannon » Tue Feb 19, 2008 3:52 pm

Hmmm, more than likely I'd position the tube correctly and clamp everything together solidly with c-clamps. Once done I'd use a small pilot bit and drill 1/2 the way through from the front and 1/2 the way through from the back. Using a bit of "english" I'd try to guide the bit at estimated proper angles to make the pilot holes meet each other. Again drill 1/2 in from the front and 1/2 from the back with proper size bit (I'm guessing 1/4") and it should work. Try it with some old material for practice.
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Postby russell » Tue Feb 19, 2008 4:51 pm

Tyler had the same suggestion earlier and it would probably work well. I have a tendency to finite things that do not warrant it. Kinda like polishing the bottom of your shoes.
My eyesite has dwindled so that it's hard to eyeball things such as the center of a hole. Damned glasses. The only transfer punches I can come by won't work with such thin material as these wing attach plates. The point on them are too long to allow the body of the punch to get down into the hole itself. I've got scraps I can play with though.

Thanks for the help. I'll let you know how it turns out. If I don't, I'll instruct my wife to after I've shot myself in the head!
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Postby Shannon » Wed Feb 20, 2008 7:05 am

Ahh yes backtracking I see me and Tyler are on to the same idea here. I wouldn't fret over it too much. Just do the best you can and it will surely turn out fine. As for the eyes that is something nearly everyone will face sooner or later. Thank goodness these days we have new correction options.
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Postby uscgairdale » Wed Feb 27, 2008 10:53 pm

Since this thread is named the illusive hole I thought that I'd share this:

For the long bolt mod I wanted to be able safety wire the nuts onto my AN4-80A bolts. Since the A in 80A means that there is no hole for safety wire/cotter pins I went ahead and bought one of those safe-t-block jigs for drilling your own holes into hardware. At $16 each I was nervous about ruining them, but I went ahead and tried it out.

Man it worked real nice. The only thing is to be sure that you use are high quality drill bit and take your time with drill bit pressure and use some cutting oil. It was definitely worth the $$.

Dave
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Postby uscgairdale » Wed Feb 27, 2008 10:54 pm

The finished product.
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Postby russell » Thu Feb 28, 2008 8:17 am

Dave, where did you find those long bolts?

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Postby uscgairdale » Thu Feb 28, 2008 2:12 pm

I got mine from Wicks Aircraft. They were the only place at the time that had them.

If you are having a hard time finding them, let me know. I may go ahead and order a bunch through the owner of M-Squared Aircraft. He's the one that I share hangar space with and has offered up his connections in the bussiness if I ever need it.

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Postby russell » Fri Feb 29, 2008 8:08 am

Thanks Dave, I'll give them a try. You are fortunate to have an association which someone as he. Also, thanks for the offer.

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