February 6, 2007


Continuing with the work from the 4th I started on the opposite side front spar channel.  I won't bore you by repeating the same shots from the other day, so some steps are ommited.

Here's the front spar channel (cut the other day) ready for marking.



Here I've marked all of the #40 pilot hole locations and the cut and bend lines on the far right side.  If you look closely you can faintly see them.



All of the pilot holes drilled, the end cut, bent & deburred.  I promise that isn't the same picture as above.



I lined up the front spar channel the using the same method as before - I marked the center line of the first rivets using the full size detail on the drawing.  Then I clamped it to the spar, and drilled it for about 8 clecos.



Here's the other side.  Now to drill the spar and channel up to #40 for the rivets.



Here I've drilled and clecoed the assembly on the left side up to #30.



Notice the burrs left on the spar from the drilling.  I'll remove these by turning a 3/16" drill bit with my fingers.  Its quick and easy - about 2 twists with little pressure and the burr is gone.



The spar and the channel drilled to #30.  I debur the channel (where necessicary) using the same method.  I've also hit any scraches with 400grit.



Thats all I got done tonight - I took my PPL written exam this afternoon so that took up some of my build time.  I passed.

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