DragonflyAero
Well Known Member
I dreaded measuring and marking both flanges of each tank attach angle to find the "exact" center so. came up with a simple jig that I clamped to my drill press. I simply cut a couple of pieces of scrap angle to about 3" and then drilled and clecoed them to a 2x4 where the attach angle would fit exactly inside them. Then I measured and marked one flange, placed it on the jig and then clamped the jig to the drill press so the drill was exactly centered on the mark. This made quick work of drilling all of the center holes in the angle flanges.
![ok518z.jpg](/community/proxy.php?image=http%3A%2F%2Fi40.tinypic.com%2Fok518z.jpg&hash=3962e037a99ca6e7149c43353e3b8dc9)
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