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Old Nov 18, 2012, 01:26 AM
SBSS, SCCMAS, EBRC
Don McCullough's Avatar
United States, CA, San Jose
Joined Jan 2004
144 Posts
I just finished my build of Sean's Aerotestra quad. This was a very easy build. At first I was concerned about getting all of the FPV equipment. With some cable management it worked out great. The only parts sticking out into the wind are the antennae, sonar module, and FPV (later Contour HD) camera.

In order to carry the extra equipment I did some very minor mods to the suggested installation. This quad has more powerful motors to handle the added weight. Just to make sure, I added small holes in the case to provide extra cooling (see picture). Wiring was eased by lengthing three ESC wires with 6" servo extensions. This allowed me to bundle all the wiring on one side with a removable cable tie. Access to the battery was very easy. The MinumOSD was mounted to the back of the ArduPilot, further reducing wiring.

The configuration of the Aerotestra is well suited to FPV. The controller/gyro is mounted far away from equipment and there is no metal to affect the gyro or compass.

Great job Sean in this design. Top notch product.

Don
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Last edited by Don McCullough; Nov 18, 2012 at 06:28 PM.
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Old Nov 18, 2012, 02:15 AM
Registered User
South Africa, GP, Alberton
Joined Sep 2012
39 Posts
very nice build captain . what vibration bobbins are you using .
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Old Nov 18, 2012, 08:29 AM
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Captain3D's Avatar
United States, CA, Glendale
Joined Jan 2012
937 Posts
Quote:
Originally Posted by jamiedco View Post
very nice build captain . what vibration bobbins are you using .
Thanks Jamiedco. Especially after seeing your great build. I think you can see its influence on mine :-) I am using the QAV500 bobbins...

http://www.getfpv.com/featured/orange-rc-bobbins.html

But also just got some of these PC HD dampeners to try...

http://www.performance-pcs.com/catal...ducts_id=23379

They are a little stiffer but might work well.

cheers...phil

PS. You mentioned 9 x 6 props in your video. I know APC make an E prop in counter rotating pairs at 9 x 6.

http://www.apcprop.com/SearchResults.asp?Search=9x6+e



phil
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Old Nov 18, 2012, 08:44 AM
I Toast Planes
bakon's Avatar
Joined Jul 2010
945 Posts
My first scratch built hex designed by yours truly. Took about 3 weeks on and off of designing and building.
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Old Nov 18, 2012, 08:46 AM
Registered User
South Africa, GP, Alberton
Joined Sep 2012
39 Posts
thanks captain . i will check it out now . i am making my own bobbins from silicon and cornstarch . i wana try them out tomorrow .
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Old Nov 18, 2012, 09:57 AM
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biggles uk's Avatar
Joined Feb 2012
300 Posts
can someone help with my tuning, I'm on a kk2 board and so far I've got I gain right up to 320 and I am still not getting the low speed oscilation that I am expecting. Am i missing something?
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Last edited by biggles uk; Nov 19, 2012 at 12:43 AM.
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Old Nov 18, 2012, 10:46 AM
Registered User
United States, CA, San Jose
Joined Nov 2012
16 Posts
Quote:
Originally Posted by Don McCullough View Post
I just finished my build of Sean's Aerotestra quad. This was a very easy build.
Don
Hey don,
That looks great. Great feedback. I appreciate you taking the time to document your build. I hope I can join you when you get to flying.
Looks like the production is beginning and delivery should begin by weeks end. I will post a full description under a "new product" heading in the next day or two.
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Latest blog entry: 080 HUGO AeroTestra quad build
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Old Nov 18, 2012, 11:31 AM
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South Africa, GP, Alberton
Joined Sep 2012
39 Posts
biggles .

you need to drop it right down and then raise it 5 or 10 at a time till it osculates . i had the same thing with my tricopter
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Old Nov 18, 2012, 01:36 PM
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carr52's Avatar
United States, SC, Irmo
Joined Mar 2012
2,482 Posts
What do you mean by ocilate and why would you want it to? Is that a end point for your settings or something? I just received all my parts and the KK2 from HK so I'm starting my quad build. Need all the help I can get. Thank you for your help.

Tom

Update: just came in from giving the tricopter a try. Its alive. I just played around with the gyros until was stable. It doesn't try to auto stabilize. The manual says it is suppose to. I'll just have to keep working on it. At least it flys. This is my first attempt at a multi rotor.
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Old Nov 18, 2012, 07:31 PM
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Captain3D's Avatar
United States, CA, Glendale
Joined Jan 2012
937 Posts
Took it out for a flight. AUW 1750g on 9" props. Still getting a bit of jello but I didn't balance the props. I also found out that I don't need to hang the batteries out the back to balance like my other quads so I can save a bit more weight there.

First Flight on new, anti jello, frame and Sunnex lens modded GoPros (3 min 34 sec)


I will be redesigning as this evolves until I get it just right.

Cameras:
These are GoPro Hero2's (for Stereo) with the Sunnex lens mod to give a square picture.

DSL945D-650-F2.5
http://www.optics-online.com/EnterOrder.asp?ID=4446
http://www.optics-online.com/OOL/DSL/DSL945.PDF

The horizontal FOV is 60 as compared to the Hero 2 on 'medium', which I had used before, at 127. I like the square frame but the more 'zoomed in pic' mean you have to fly very slow to get something watchable.

phil
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Old Nov 18, 2012, 08:23 PM
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Birdman4498's Avatar
Canada, ON, Ajax
Joined Jul 2011
319 Posts
X650 Spyder

That looks realy nice Cap't and I didn't really notice the jello you commented about, flies very nice. Here is mine out of X650 parts and a frame I drew up and was able to have DialFonZo to cut out for me. I am very happy with the outcome and has the portablility and size I was looking for.
X650 Spyder Quad maiden outside flight (4 min 22 sec)


X650 Spyder quad outside maiden (9 min 28 sec)
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Old Nov 19, 2012, 02:55 AM
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Captain3D's Avatar
United States, CA, Glendale
Joined Jan 2012
937 Posts
Looking good Birdman. I see the slight Jello in mine viewing full res but I think I can tame it.

When you have something cut is it laser? cnc? Does it have to be from G10 or can they do ply as well? And what type of file do you have to create? CXF? and cost?

cheers...phil (still wearing out the jigsaw)
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Old Nov 19, 2012, 02:57 AM
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South Africa, GP, Alberton
Joined Sep 2012
39 Posts
i have a cnc machine at work but i know of a few guys who cut stuff in china and its well priced .
if you want me to send you there details pm me .
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Old Nov 19, 2012, 03:44 AM
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South Africa, GP, Alberton
Joined Sep 2012
39 Posts
Getting Braver With FPV (1 min 32 sec)


i have slight jello but i think that's just the props . i tuned the quad in crazy strong winds so there is no oscillation in low wind any more
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Old Nov 19, 2012, 06:46 AM
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Canada, ON, Ajax
Joined Jul 2011
319 Posts
Hi Phil, I had mine cut by Eric (DialFonZo). He posts in this thread and resides in Quebec. He has a CNC set-up that I believe he built himself. I sent him a photo of a mockup on how I thought it was going to look and then emailed him a scanned copy of a paper cut out I had done with the dimensions on it. I don't have a cad and probably wouldn't be able to use it anyway. I tried doing a wooden prototype but was not as accurate as yours in the cutting so after seeing some of Eric's work I decided to go straight to the G10. I am very happy with the results. I think once I ream the props and balance rather then drill, (which I noticed did put them off centre) the jello will be gone completely.

Dave
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