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Aerial Videography and Photography Aerial Video/Photo from R/C Helicopters


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Old 09-08-2011, 06:44 PM   #1 (permalink)
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Default DecaRotor anyone??

should be flying next week. Plenty of thrust and redundancy. Mikrokopter control/navigation system.
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Old 09-08-2011, 06:53 PM   #2 (permalink)
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You have my attention...

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Old 09-08-2011, 06:59 PM   #3 (permalink)
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Ghezzzz 10 out riggers.... interesting to see this all wired up
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Old 09-08-2011, 10:03 PM   #4 (permalink)
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Awessome! Cant wait to see test flights! Motor motors is always better
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Old 09-08-2011, 10:05 PM   #5 (permalink)
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Now, make it foldable and I'll be impressed
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Old 09-08-2011, 10:15 PM   #6 (permalink)
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Why only 10 DJ? Looks good!
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Old 09-08-2011, 10:16 PM   #7 (permalink)
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Quote:
Now, make it foldable and I'll be impressed
I can make it fold right now in no time...... but unfolding it and flying again would be an issue.

I gave folding some thought, but on a copter like this I think quick detach arms are the practical solution.
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Old 09-08-2011, 10:35 PM   #8 (permalink)
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I wonder if this will solve the leaf in the wind problem or just carry more weight. I know these copters take some beautiful shots.
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Old 09-09-2011, 06:54 AM   #9 (permalink)
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Amazing! whats the expected payload capacity for this thing.

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Old 09-09-2011, 10:41 AM   #10 (permalink)
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I'm guessing 4lb. A Canon 5D or similar weight.

The reasoning behind this project is to have a heavy lift machine that uses 22XX class motors on MK BL2.0 ESC. 22XX motors run very cool and efficient unlike the 3538 sized motors of the heavy lift XL versions which can cause the ESC to overheat. Remember I am in the desert where temps can reach 118F/45C no problem in the summer for weeks on end. In those temps I can not fly an XL copter loaded. The escs will heat saturate and shut down within about 2 minutes.

The 22XX motors on the other hand keep the escs running very cool. So... more of them! 10!
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Old 09-09-2011, 11:44 AM   #11 (permalink)
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Yeah, I get overheting ESCs when carrying a 5D under my hexa in high temps too, I take the cover off and problem solved but it seems its working at it's limit.

Last edited by Craneman; 09-22-2011 at 02:27 PM..
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Old 09-11-2011, 06:11 PM   #12 (permalink)
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Video from today. About half way there is some flying where I remove 3 props. Flies as good on 7 as it does 10!

it's a smooth ship with plenty of power!

[ame]http://vimeo.com/28905236[/ame]
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Old 09-14-2011, 05:00 AM   #13 (permalink)
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Interesting design DJ!
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Old 09-14-2011, 08:32 AM   #14 (permalink)
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Food for thought: for an aircraft with so many arms, an outer ring design with a cross member support may be more efficient, rigid and lighter.
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Old 09-14-2011, 10:41 AM   #15 (permalink)
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yes, like a hula hoop. I've thought that for some time but am having difficulty finding a way to make a lightweight ring. I'm thinking a roller type tubing bender would do, but sourcing 0.5mm wall thickness aluminum tubing in long lengths (140" for a copter this size) is not easy to do.

I suppose it could be done in four 90 degree sections and TIG welded together, but my TIG skills are not up to par on such thin material.

Certainly a concept I've been wanting to try!
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Old 09-14-2011, 01:46 PM   #16 (permalink)
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Default ......

Hey DJ....

What if you made the (4) 90 degree sections removable. In other words this would allow the design to be "broken" down into four separate units for easy transport and storage. This would also allow for a quick setup when on location.

I am in no way a designer but it is ironic that this exact design is what I have been thinking about (a ring with center supports, that break into four separate sections). I thought of the ends being one female (larger OD) and one male (smaller OD) that fit into one another. Perhaps the use of a "sleeve" on one end to get the larger OD. I am not sure but with a tight fit here and the use of a "push set ball" on one piece and a hole on the other end would allow a quick connect / disconnect.

Then, if you use a center section that is an "X" that has the center of the "X" as a swivel point as to allow it to be removed and "swiveled" to a flat piece for easy storage and transport. This would be of a lighter material I would think and house only the necessary electronics.

I would think that the outer ring in a design as the above suggestion would be strong. Using this outer ring as any attachment for landing gear and or camera mount would only require the proper supports / geometry to be taken into design consideration. Keeping with the same theme and idea as above, it can be easily removed to allow for storage and transport.

Again only my 2 cents. I am not a designer. This is something I have been thinking about a lot lately and when the subject of a "ring design" came up I thought I would share.

Either way keep us posted on your progress and designs.

Thanks again for sharing,,,

JASON
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Old 09-16-2011, 03:34 PM   #17 (permalink)
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An explanation of the motor arrangement we selected. Seems to be the only way to get a radial array decacopter to function properly
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Old 09-18-2011, 12:54 PM   #18 (permalink)
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Hi DJ,

Very nice, as usual.

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Old 10-06-2011, 09:47 AM   #19 (permalink)
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Did some tests with the Deca carrying a T2i and Canon 10-22. It hauls the mount and camera with ease. Power comes from two 4s3300 packs. Flight time about 7.5 minutes.

All up weight with camera/lens and batteries is 11.4lb (5.2kg)

[ame]http://vimeo.com/30097384[/ame]
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Old 10-06-2011, 04:41 PM   #20 (permalink)
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It looks very smooth, congratulations!!
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