In article
,
Bob Kuykendall wrote:

On Aug 21, 2:00*pm, Michael Horowitz wrote:

Bob - thanks for your reasoned response. I'd like to hear more about
how you lined the drift along the rivet axis so that you got a
symetrical mushroom head - Mike

Mike, I just held the drift as straight as I could eyeball it and
whacked it with a claw hammer. There are a couple relevant photos in
the latest HP-24 project update:

http://www.hpaircraft.com/hp-24/update_25_aug_08.htm

Thanks, Bob K.

That is a sure way to booger up a rivet! Use the proper tools! The cheap
"air hammers" available from Harbor Freight, etc. do not work well --
they have the wrong stroke.

I have an adjustable-orifice valve on all of my rivet guns, to regulate
the frequency and intensity of the strokes. For An3-type rivets, it is
set down to go tap-tap-tap-tap and works very well.

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