Today's Message Index:
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1. 04:57 AM - Re: dimpling tip rib in vertical stab (Stan Bahrns)
2. 12:23 PM - Re: dimpling tip rib in vertical stab (Jeff Cours)
Message 1
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| Subject: | dimpling tip rib in vertical stab |
--> RV7-List message posted by: "Stan Bahrns" <bahrns@effingham.net>
The vise grip squeezer will do most all of those places. You will also have
to have a thin nosed squeezer.
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com]On Behalf Of Jeff Cours
Subject: RV7-List: dimpling tip rib in vertical stab
--> RV7-List message posted by: Jeff Cours <rv-j@moriarti.org>
I was dimpling the ribs for a 7A's vertical stabilizer last night and
ran into a problem with the two holes in the top rib nearest the leading
edge: it's just too narrow for my squeezer. (In fact, it's a little too
narrow for the female dimple die with it's long-ish shaft.)
My next thought was to try countersinking. I tried it on some scrap
aluminum that was about the same thickness as the rib stock but wound up
enlarging the hole. Since the rib flange is convex in that area, which
might make it tough to adjust the countersink properly in the first
place, I'm not sure I really want to try countersinking there till I've
gotten a bit better with that tool.
Which brings me back to dimpling. Has anyone else has run into this
problem? Will the Avery vice-grip dimpler will get into that space? My
other idea is to try to make a close quarters dimpler by modifying a
C-clamp.
Thanks in advance!
Jeff C.
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Message 2
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| Subject: | Re: dimpling tip rib in vertical stab |
--> RV7-List message posted by: Jeff Cours <rv-j@moriarti.org>
Thanks for all the excellent suggestions, everyone. I wound up stopping by
Allied Ironworks Friday evening and they were good enough to let me root
through their scrap pile, so now I have a plate for dimpling and
another for back-riveting. Dimpling in the countersunk hole went smoothly
using the plunger from the C frame as the male form.
I haven't decided yet how to handle riveting. I may go the pop-rivet-and
bondo approach, may use an undrilled corner of the steel plate for a
bucking bar and drive the rivet, or may go back to the idea of modifying a
C clamp into a squeezer. I'll deal with that issue once I've figured out
how to prime the parts.
thanks again,
Jeff C.
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