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Log Entries for Ribs

Log Entry Date: Apr 28, 2012


Cut flanging plugs for nose ribs
The plan for flanging holes in the wing ribs is to make male and female plug out of MDF and then route the edge of the male with a 45 degree chamfer router bit. Pressing the aluminum between the two should yield a nice 30 degree bend after the spring back of the aluminum. Here I've made the two male plugs using a fly cutter aka circle cutter in a drill press at low speeds.
Finished product. Note the lip on the plug is a by-product of the shape of the cutting tip on the circle cutter.

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