[NSRCA-discussion] wing tube sleeve hole

[Mike Miller]

Thanks Jim and Lance,
 I was thinking it was a much more complex set up but I can see clearly how your set up works. Simple is better very time. The photo is clear and appreciated.  I was thinking more along the line of a vertical set up in a drill press.
Thanks
--
Mike Miller

-------------- Original message -------------- 
From: "J N Hiller" <jnhiller at earthlink.net> 

I bevel the inside of the sleeve and use it to cut the hole by rotating it while gently pushing it into the foam. The foam will brake loose about every 3 inches and needs to be ejected from the sleeve.
I cut the tube hole before sheeting as I use a partial rib to support the outer end and need the tube sleeve to locate it before sheeting the core. The core is supported in the shucks and shimmed as necessary to the proper dihedral angle. The tube is slightly above center at the root to get the outer end near the center. The core blank is cut with the root parallel to the centerline so it is easy to cut the tube hole 90 degrees with a simple guide for height and square ness. See photo. I hope I reduced the photo enough to fit this post. Contact me directly for other or larger photos.
Jim Hiller
 
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Mike Miller
Sent: Thursday, November 08, 2007 5:09 PM
To: nsrca-discussion at lists.nsrca.org
Subject: [NSRCA-discussion] wing tube sleeve hole
 
 
http://www.mackrc.net/patternwings2/index.htm

http://www.nextcraft.com/foamwingsandparts.html
 
Terry Brox's web site on balsa skinned wings is very good and does show the drilling of the servo lead hole with a tube and by hand. 

Their is some great information on these sites on building foam core wings. But a very important part of a plug in wing would be the wing tube sleeve hole in the core, to be straight and parallel to the desired line centered and at the right angle to set the dihedral. Is there a site that explains or shows the process of set up and drilling of this hole? If this step is not perfect looks to me like the wing is dead no matter how good the skinning process is.
Thanks in advance

Mike
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20071109/4afa1bb3/attachment-0003.html 
-------------- next part --------------
An embedded message was scrubbed...
From: "J N Hiller" <jnhiller at earthlink.net>
Subject: Re: [NSRCA-discussion] wing tube sleeve hole
Date: Fri, 9 Nov 2007 04:37:33 +0000
Size: 71974
Url: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20071109/4afa1bb3/attachment-0003.mht