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05-28-2016, 12:19 AM
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Join Date: Apr 2015
Location: Wee Waa Australia
Posts: 279
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Dimpling
Just out of interest I dimpled the same thickness material as the ribs with the tank dimple die set and the same material thickness as the wing skins with the normal 3/32 die and found that it looks like it fits together far better than just using the same dimple die set for both.
Has anyone had experience with doing it this way?
Thanks.
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Kit 140241
Tail Feathers done
Fuselage kit completed.
wings almost complete.
Flaps and ailerons done.
Canopy next. Phew!
Last edited by salto : 05-28-2016 at 06:55 AM.
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05-28-2016, 01:14 AM
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Join Date: Oct 2014
Location: Cambridge, Tas. Australia
Posts: 54
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Dimpling
Yes and it works great. In cases where there are three overlapping surfaces, I've gone as far as using regular die on the top skin, tank die on the underlying skin, and substructure die on the underlying spar.
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Adrian Port
RV-10 emp done, wings 90%, fuse 90%, cabin top DONE!
www.tasrv10.com
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05-28-2016, 04:44 AM
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Join Date: Jan 2015
Location: Jamestown,NY
Posts: 629
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That's exactly what Cleaveland tool recommends in the description of the tank dies. I did that with my wing structure.
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9A in progress
Working on Finish kit!!
Mattituck TMXIO-360 red gold
Dues paid Jan 2020
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05-28-2016, 06:29 AM
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Join Date: Aug 2015
Location: Leesburg, VA
Posts: 491
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This is honestly the first time I have ever heard of "tank dies" and I don't recall reading in any build logs about people using them. Is it common knowledge to use tank dies? I don't mind buying them especially if it will help out in producing a leak free tank but I am just surprised nobody has ever mentioned them before and since I'm working on my tanks now this has my attention.
I found lots of mentions of them in the search function here at VAF, just never a mention in build logs.
Last edited by Nova RV : 05-28-2016 at 06:44 AM.
Reason: correction
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05-28-2016, 07:55 AM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Dies
Quote:
Originally Posted by Tassie
Yes and it works great. In cases where there are three overlapping surfaces, I've gone as far as using regular die on the top skin, tank die on the underlying skin, and substructure die on the underlying spar.
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+1
That's how most of my bird is built.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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05-28-2016, 10:07 AM
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 1,544
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Or just simplify your life and use one set of dimple dies for all parts and surfaces.
I have been doing this since 93 and have built 10 aircraft, one of them and award winner at AirVenture.
I do not have the time now to look it up but a year or so ago I did a comparison between joints done with regular and the sub structure dies. The parts were cut and polished. The substructure dies result in a larger hole which ultimately requires more rivet to fill this hole. This, in some cases left microsopic but visible voids in the joint. There was no difference in how the actual parts fit together after riveting whether you used the regular or subsurface dies.
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Tom Martin RV1 pilot 4.6hours!
CPL & IFR rated
EVO F1 Rocket 1000 hours,
2010 SARL Rocket 100 race, average speed of 238.6 knots/274.6mph
RV4, RV7, RV10, two HRIIs and five F1 Rockets
RV14 Tail dragger
Fairlea Field
St.Thomas, Ontario Canada, CYQS
fairleafield@gmail.com
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05-28-2016, 11:25 AM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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Quote:
Originally Posted by Tom Martin
Or just simplify your life and use one set of dimple dies for all parts and surfaces.
I have been doing this since 93 and have built 10 aircraft, one of them and award winner at AirVenture.
I do not have the time now to look it up but a year or so ago I did a comparison between joints done with regular and the sub structure dies. The parts were cut and polished. The substructure dies result in a larger hole which ultimately requires more rivet to fill this hole. This, in some cases left microsopic but visible voids in the joint. There was no difference in how the actual parts fit together after riveting whether you used the regular or subsurface dies.
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http://www.vansairforce.com/communit...hlight=dimples
__________________
Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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05-30-2016, 08:16 AM
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Join Date: Apr 2015
Location: Wee Waa Australia
Posts: 279
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Really appreciate the feedback Gents. Lot of practical analysis. Good reasoning supporting all the methodology used, guess I'll have to use my casting vote on this one and then build on.
__________________
Kit 140241
Tail Feathers done
Fuselage kit completed.
wings almost complete.
Flaps and ailerons done.
Canopy next. Phew!
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