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Old Mar 27, 2009, 12:35 PM
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Powell TN
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Quote:
Originally Posted by maxvtol
Thanks UTG.

xzavin, if I did give a prediction on when the fiberglass model would fly, I wouldn't believe it. I will just say many months at this point.

I do have the 3rd design of tilt servo brackets done, but still not sure I'm going to use them. Might make a 4th just to see if it's any stiffer. I'll definitely post some pics when I'm happy with them.
Can't wait Max ......chop , chop .....
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Old Mar 31, 2009, 12:10 PM
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Mpls Mn
Joined Mar 2007
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Quote:
Originally Posted by maxvtol
I'm about 90% certain I'm gonna go ahead and step up to my next version which would use one motor, shafts and variable pitch props. That has been my long term intent anyway.
That was one of my plans as well with one motor, but twin props out on ends of boom with micro belts.

My main reason here was to show you the tools used for Rivnuts.
There are many different styles, and you developed one of the ways,
but I used these tools quite a bit restoring WWII aircraft over the years.

http://www.hansonrivet.com/w69.htm
This is one common sample.

The threaded Rivnut itself has now been updated.
From round grip zone to square. Very Smart.
I wish we had these styles back in the eighties.

A common problem is the nut and screw become somewhat seized, and then the Rivnut decides to spin in it's crimp zone, and then therapy is next stage.
http://www.hansonrivet.com/w66b.htm

The other issue is the space created between the sheets.
Sometimes this is not wanted.
This is where the sub sheet gets dimpled, which then keeps combined sheets tight together.

There might be counter sink style nuts, where you use a 60 degree drill style counter sink for the nut to sit flush.

Hope I catch this ship flying soon.
Cheers

One Note added/
Check underside of rivnut head to see if it has a non turn keyed index molded in, This is where you make a matching dimple in sheet to lock
rivet from spinning.
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Last edited by Philscbx; Mar 31, 2009 at 12:15 PM.
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Old Apr 23, 2009, 09:44 AM
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all i can say i WOW ...looking forward to seeing the thing fly.
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Old Dec 11, 2009, 11:49 AM
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Well what is the latest? Did you put together the 4th rev of brakets.
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Old Dec 11, 2009, 11:08 PM
just Some Useless Geek
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Chicagoland
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The quad threads on this board seem to have fallen suspiciously silent...could it be that all the quad projects are failing miserably? I sure hope not, because paying Microdrones fifteen grand for a camera platform seems like a sucky way to blow a fortune on R/C.
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Old Dec 13, 2009, 10:16 AM
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Valdosta, GA
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Nothing done since last post. I will eventually get back to it, just working on unrelated non-RC project.

Quote:
Originally Posted by A Useless Geek View Post
... because paying Microdrones fifteen grand for a camera platform seems like a sucky way to blow a fortune on R/C.
Pay me half that and I'll get back to work on it real quick!!!
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Old Dec 13, 2009, 10:31 AM
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Powell TN
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Quote:
Originally Posted by maxvtol View Post
Nothing done since last post. I will eventually get back to it, just working on unrelated non-RC project.



Pay me half that and I'll get back to work on it real quick!!!
Hello Max , glad to here from ya .... Lookin' forward to more progress on the QTR ...

Terry
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Old Dec 14, 2009, 08:37 PM
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Quote:
Originally Posted by maxvtol View Post
Nothing done since last post. I will eventually get back to it, just working on unrelated non-RC project...
What is your AUW?
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Old Dec 14, 2009, 09:31 PM
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Should be around 10lbs. Motors pull around 170 watts each using 16x10 electric props.
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Old Dec 14, 2009, 09:33 PM
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Quote:
Originally Posted by maxvtol View Post
Should be around 10lbs. Motors pull around 170 watts each using 16x10 electric props.
WoW.
This amazing project is bigger than I though it was. Hope you get time to start it up again soon.
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Old Apr 24, 2012, 06:31 PM
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Interesting, I designed a simpler tilt motor quad with a fixed wing in the middle, but then realized it was simpler and lighter to simply add an additional horizontal flight motor and skip the complexity and weight of the tilt mechanism entirely.
This thing makes no pretense of being scalable to full sized flight, but hopefully will make a good camera / video platform.
Using the Ardupilot APM2 controller which is easy to set up for custom profiles.
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Old Feb 12, 2013, 08:25 AM
MULTI ENGINE FANACTIC
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Quote:
Originally Posted by maxvtol View Post
Should be around 10lbs. Motors pull around 170 watts each using 16x10 electric props.

MAGNIFICENT !!!!!!!!!!!!!
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Last edited by CESARNOGUEIRA; Feb 12, 2013 at 08:26 AM. Reason: ERROR
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Old Sep 08, 2013, 01:04 PM
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Joined Mar 2013
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To maxvtol-
I am currently trying to build a quad-tilt rotor myself, and I am having problems controlling the rotation of the motors around the 90 from top to forward. I was wondering how you managed to make the motors rotate forward, while still keeping it controlled?
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Old Sep 09, 2013, 10:36 AM
Opus
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Quincy,Florida
Joined Dec 2002
419 Posts
question

I am in the what if stage of a design I have been wanting to do for years. Basically its a flying wing with tilt ducted fans (maybe tilt props but would rather do ducted fans) . The fans would be mounted in a triangular arrangement in the wing. How far apart would you think they would have to be for stable hover. They would rotate 90 degrees for fwd flight.
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