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Old Dec 14, 2009, 03:27 PM
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Kjell Dahlberg
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New Wiggle-Drive.


New Wiggle-Drive.

Thanks to Sean Kinkade selling me a complete counter rotating gear, I have now converted this gear in to a Wiggle-Drive. The first test with this prototype drive is giving a very good result. Maybe a new flying bird will be the result.
Kjell
New wiggle.VOB (0 min 24 sec)
Last edited by KJELL; Dec 14, 2009 at 05:48 PM.
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Old Dec 14, 2009, 07:14 PM
khaled_abobakr is offline
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There's magic in those wings !
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Wow ... looks so real ..I mean alive

Can't wait to see your new bird based on this amazing wiggle mechanism

Khaled
Old Dec 16, 2009, 01:14 PM
bluefalconhollan is offline
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Very nice concept Kjell, you make progress.
Old Dec 16, 2009, 08:22 PM
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PROFESSOR TRUTH JIMMY ICE
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That looks amazing!!!
Old Dec 16, 2009, 09:44 PM
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KJELL I think you are on to something there! Very interesting. I hoped to see it applied soon.
G-LO

AKURA 2, long time no see/read, how is your SlowHawk from France?....did you get one, if not my bad.
Last edited by G-LO; Dec 16, 2009 at 10:04 PM.
Old Dec 19, 2009, 04:33 AM
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Kjell Dahlberg
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New Wiggle bench test,
Span 88 cm.
Membrane wings
Flying speed 15.8 Km/h
New Wiggle 1.WMV (0 min 22 sec)
Old Dec 22, 2009, 05:15 AM
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Membrane wing test with the Wiggle-drive in my new flight bench with lift indicator.
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Old Dec 26, 2009, 02:06 AM
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The Wiggle-Drive project is slowly taking shape.
Kjell
Old Dec 27, 2009, 02:17 PM
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Kjell Dahlberg
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The Wiggle-Drive installed in the new project.
Kjell
New Hawk01.WMV (0 min 34 sec)
Old Dec 28, 2009, 05:49 AM
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Looking great!
Old Dec 28, 2009, 11:22 AM
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Kjell,your project is fantastic .
Old Dec 28, 2009, 12:07 PM
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I like to show the different wing movement comparing Crank shaft + conrod with the wing movement of the Wiggle –Drive.
The Crank mechanism moves the wing in an asymmetric Sine motion.
The Wiggle mechanism moves the wing in perfect Sine motion, like the Scotch yoke mechanism, but eliminated the noise from the backlash and allow faster flapping frequency.
To make the wing twist with the crank mechanism, extra mechanic parts have to be added with extra weight.
The Wiggle Drive make the wing twist to the same angle as the flapping angle.
Kjell
Old Jan 03, 2010, 11:46 AM
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Kjell Dahlberg
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Using natural feather propulsion for Ornithopters.
It is impossible to make anything better than the Primary feathers used by birds.
Thousand of Primary feathers are thrown in the dust bin every day. Why don’t use them in the Ornithopter market to build nearly perfect wings?
I have done some tests with Pigeon feathers with very good result. The thrust the Fan-effect produced by the Primary feathers is the best I have been able to see, comparing with the tests I have bee doing with different wing material
Kjell.
Last edited by KJELL; Jan 30, 2012 at 02:47 AM.
Old Jan 03, 2010, 02:02 PM
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Waww it is real !!
Last edited by massimo; Jan 12, 2010 at 12:47 PM.
Old Jan 03, 2010, 02:23 PM
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Feathers are in my opinion one of nature's most wonderful creations. But they are far from perfect and still in development. As I keep birds myself please take a closer look to them. Birds spend a half of a day by cleaning the feathers. Feathers need a special oil to give a little protection against water. They need tallow over and over to bring the feathers in condition. Every year they have to mould because feathers wear and are not durable. .but they are perfect to fold a wing and create a profile. Each feather has a muscle to keep it at the right place. I think that artificial materials are better for our models. We also do not use bones for body and wing structures but carbon and metals.

I did also study feathers and tried to copy. I didn't succeed, I coudn't make a feather with the same weight as a natural one.
Last edited by bluefalconhollan; Feb 09, 2010 at 12:15 PM.


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