Author: "manlosangeles" <manlosangeles@...> Time: Wed Dec 19, 2001 8:23 pm PST Link
Does everyone use that "C" arbor?
How about the "spring-back" dimple sets that supposedly produce
better dimples? (see Avery catalog).
How about the pop-rivet gun dimple method?
Author: "rv7driver" <jrjordan@...> Time: Wed Dec 19, 2001 9:35 pm PST Link
--- In RV7and7A@y..., "manlosangeles" <manlosangeles@y...> wrote:
> Does everyone use that "C" arbor?
>
> How about the "spring-back" dimple sets that supposedly produce
> better dimples? (see Avery catalog).
>
> How about the pop-rivet gun dimple method?
I use the "C" and the spring backs. I did order a non spring back to
compare and I honestly cannot tell the difference. As far as the pop
rivet dimpler, I wish I had bought it earlier. It costs very little
and will come in very handy later. A couple of my dimples in the HS
skins came out pretty bad using the C frame. This would have been
prevented with the pop rivet. I highly recommend them.
John Jordan
Author: "rp10294648" <rpflanze2@...> Time: Thu Dec 20, 2001 6:15 am PST Link
The "C" arbor is a mandatory tool, in my opinion. The pop rivet tool
is just to be used in those cases where you can't reach the hole any
other way. It will not produce as nice a dimple.
Remember that the dimpling stage is one of the most important in
terms of how your airplane is going to look when completed. Two
tricks that I can pass on:
1) If there is a gap between the skin and the part you are riveting
when you pull out the cleco, then put a spacer in before you drive
the rivet. If you don't, you're going to have a wave in your part
when you're finished that will really show up when the part is
painted. I spent a week before my empennage kit arrived making up a
tray full of dimpled spacers made out of thin scrap.
2) A trick to getting the rivet to set well is to run your deburring
tool around in the dimple to "true" it up. On the thin skins of the
elevators and rudder, I true up the dimple in the rib or spar. On
thicker skins, you can true up the skin. Don't go overboard on this,
but just a little really helps to get the rivet to set with a smooth
outer surface.
I found out these two tricks after talking to owners up at Oshkosh
while admiring their incredibly smooth skins.
Randy Pflanzer
RV-6 (Sold)
RV-7A (Empennage)
--- In RV7and7A@y..., "manlosangeles" <manlosangeles@y...> wrote:
> Does everyone use that "C" arbor?
>
> How about the "spring-back" dimple sets that supposedly produce
> better dimples? (see Avery catalog).
>
> How about the pop-rivet gun dimple method?
Author: "John Siebold" <johnsiebold@...> Time: Thu Dec 20, 2001 6:47 am PST Link
Well! I just joined, and surprise, surprise, my first response reflects my
Yahoo I.D.
You will use the C-tool to dimple all the holes not within three inches of a
sheet edge.
The pop riveter method is very, very slow and the results are not nearly as
well formed. You will need it, however, for the few places otherwise
inaccessible by squeezer or C-frame (as on some ribs). Also, the mandrel
quickly becomes burred by the jaws, so you are constantly dressing it. I
was very happy to have the popper handy, however, when I discovered a poorly
formed dimple while riveting a tank. I spent merely 15 seconds swearing,
fully 45 seconds less than usual, until I thought of it to save my bacon.
I have not compared a spring-back to a standard dimple die in the same size.
The bother wasn't worth the few dollars difference considering the vast
count of 3/32 you'll dimple. Pay the big bucks and don't fret over it. I
have used standard dimple dies for the screw sizes, results are fine. I'm
sure the difference is measureable, but nothing that attracts the eye in the
few places used. BTW, you'll use #8 a lot; #10 was needed only for the
counter weight holes, #6 is used on 24 cover plate holes (up through wing
preparation). Definitely buy Avery's proprietary tank dimple die. The
normal spring-back dies are cheaper from other suppliers.
John Siebold
7 wings
----- Original Message -----
From: "manlosangeles" <manlosangeles@y...>
To: <RV7and7A@yahoogroups.com>
Sent: Wednesday, December 19, 2001 9:23 PM
Subject: [RV7and7A] Dimpling, "spring back", ...
> Does everyone use that "C" arbor?
>
> How about the "spring-back" dimple sets that supposedly produce
> better dimples? (see Avery catalog).
>
> How about the pop-rivet gun dimple method?
> Van's Air Force - World Wide Wing
> www.vansaircraft.net
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/