Tool plugged in, top pin resting on top skin, ready to drill drive pin hole. I use 1/8" rod for the drive pin, and I thread 1" of the end that engages. With a 1/2" root rib, I thread/epoxy the vertical grain balsa/ply sandwich as well as

wing tube jig 002.jpg - 53.7 KB - Views: 247
Posted by: dc812 on Jun 24, 2010 01:12 AM
Tool plugged in, top pin resting on top skin, ready to drill drive pin hole.  I use 1/8" rod for the drive pin, and I thread 1" of the end that engages.   With a 1/2" root rib, I thread/epoxy the vertical grain balsa/ply sandwich as well as
 
wing tube jig 001.jpg
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