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Old Feb 07, 2011, 09:30 PM
Hot glue held together by foam
United States, WA, Vancouver
Joined Aug 2010
2,735 Posts
Cool
Home made mechanical elevon mixer.

Here is a Leadfeather type PBF I made for a friend who doesn't have mixing capabilities on his transmitter , so I made a mechanical mixer. The bottom of the aileron servo is attached to a hinge , then a pushrod from the elevator servo is attached to another hinge near the top of the aileron servo. then the elevator servo can move the top of the aileron servo back and forth. Seems to work well!
Home made mechanical elevon mixer (0 min 26 sec)
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Old Feb 07, 2011, 10:13 PM
*crunch*
forevercat's Avatar
United States, CA, Saratoga
Joined Aug 2010
183 Posts
wow! i never thought it could be set up that way.
good idea
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Old Feb 07, 2011, 10:36 PM
Hot glue held together by foam
United States, WA, Vancouver
Joined Aug 2010
2,735 Posts
Quote:
Originally Posted by forevercat View Post
wow! i never thought it could be set up that way.
good idea
Got the idea from browsing RC Groups! There is so much great information ( and inspiration ) available here!
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Old Feb 08, 2011, 04:57 AM
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SA/RCFlyer's Avatar
Joined Jan 2009
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Can you draw a plan and post it?
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Old Feb 08, 2011, 10:08 AM
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Del-Dredd's Avatar
Near Aberystwyth - Wales
Joined Aug 2004
2,119 Posts
Used to do things like that all the time years ago before the advent of Computer radios, it was the only way.

You even used to get premade variations using sliding trays etc or chunky bits of electronics (still got electronic one somewhere, probably with some old junk).

The best I saw was small cicular piece that attached on top of the aileron servo arm, this had a hinged piece on top which had a ball joint at each end for the aileron rods and a ball joint in the center that the elevator servo rod attached to.
Nice and compact and worked very well.
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Last edited by Del-Dredd; Feb 08, 2011 at 10:42 AM.
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Old Feb 08, 2011, 01:22 PM
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Joined Aug 2004
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http://shop.dubro.com/products/produ...=215/101.0.1.1

Take a look at this Dubro unit and it will give you some ideas...or you could by this one.
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Old Feb 08, 2011, 01:32 PM
Hot glue held together by foam
United States, WA, Vancouver
Joined Aug 2010
2,735 Posts
Mechanical elevon mixer plans

Quote:
Originally Posted by SA/RCFlyer View Post
Can you draw a plan and post it?
Here are the ( hand drawn ) plans you asked for, along with some close-up photos. Hope it helps!
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Old Feb 08, 2011, 01:43 PM
Hot glue held together by foam
United States, WA, Vancouver
Joined Aug 2010
2,735 Posts
Quote:
Originally Posted by poweredlawndart View Post
http://shop.dubro.com/products/produ...=215/101.0.1.1

Take a look at this Dubro unit and it will give you some ideas...or you could by this one.
I saw that Dubro unit, but it's more fun to do it yourself! And I made this one with stuff I already had laying around.
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Old Feb 13, 2011, 01:17 AM
Hot glue held together by foam
United States, WA, Vancouver
Joined Aug 2010
2,735 Posts
video

here is my friend flying the PbF with the mechanical mixer. He's never before flown a plane capable of rolls or unlimited vertical, so he's really going for it!
Crazy Flying RC II (2 min 4 sec)
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Last edited by balsa or carbon; Feb 13, 2011 at 01:26 PM.
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Old Feb 13, 2011, 02:12 AM
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Slider2732's Avatar
USA, OK, Muskogee
Joined Nov 2008
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Very neat and tidy. I have a V-tailed Cub that may well use your system there
Been wondering how to do such a thing with as few links and pieces as possible.
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Old Feb 13, 2011, 03:10 AM
Registered User
Las Vegas, NV
Joined Nov 2009
222 Posts
Interesting... The tilting servo was used to mix the collective in the old Xcell helicopter line (Circa 1990s), long before ccpm. 'Looks like it works well for you too. :-)
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