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Old Aug 20, 2012, 08:26 AM
RC beginner
New York
Joined Oct 2008
6,054 Posts
Video
$18 diy quad - video gallery

this is for my how-to thread:

http://www.rcgroups.com/forums/showthread.php?t=1710948

very windy day (10-15mph) but you get the idea. its very stable indoors but the ol' ball and chain kicked us out before getting the camera set up. rcg dont allow asf so it was renamed mpg. if you have trouble playing download and rename it back. wmp, nero, mp classic, and a few others work ok for me.
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Last edited by dave1993; Aug 20, 2012 at 09:24 AM.
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Old Aug 20, 2012, 02:47 PM
We can rebuild it!
djdavies83's Avatar
United Kingdom, Wales, Swffryd
Joined Apr 2010
3,670 Posts
Hi Dave, any chance you could upload it to YouTube and post a link here? The iPhone won't play the video for me.
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Old Aug 20, 2012, 05:52 PM
RC beginner
New York
Joined Oct 2008
6,054 Posts
sorry. unfortunately not only can i not post youtube but unable to view either. phone line internet is only one of the problems. maybe somebody who does have that capablilty will download it and send to youtube. and hopefully give credit and put a link to the how-to.
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Old Aug 20, 2012, 07:06 PM
Obeying the law of gravity
Jeremy Kamutzki's Avatar
Canada, ON, Cambridge
Joined Jul 2011
494 Posts
Here's the video. I posted it on YouTube. Nice job!

$18 Quad by dave1993 on RCGroups (1 min 6 sec)
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Old Aug 20, 2012, 08:20 PM
RC beginner
New York
Joined Oct 2008
6,054 Posts
mucho thanks for the favor and for the complement jeremy.
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Old Aug 21, 2012, 11:41 AM
I Toast Planes
bakon's Avatar
Joined Jul 2010
946 Posts
Now that is very cool
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Old Aug 22, 2012, 09:17 AM
Quad guys are 4x the fun :)
BD Murdock's Avatar
United States, CO, Longmont
Joined Mar 2012
833 Posts
Nice work Dave. Can't tell from your video, what are overall dimensions?
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Old Aug 23, 2012, 05:34 AM
RC beginner
New York
Joined Oct 2008
6,054 Posts
thanks guys. as mentioned in the diy thread i built several sizes from 6" shaft-to-shaft up to 24". 12" seems to work best in terms of structural integrity vs handling. and convenient because thats how long the bamboo skewers are.
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Old Sep 26, 2012, 10:55 AM
RC beginner
New York
Joined Oct 2008
6,054 Posts
a couple people asked to see video of the 60cm dquad. i really dont have anything atm except a few short test flights where i was checking out different motors and props. basically wanted to see if it would lift and be capable of some hint of control. the only place i have nearby is the 7 foot wide frat house driveway so no fancy flips or funnels. wind was a problem too. also because these are only test runs i didnt bother to change the camera from 10" macro used for the closeups. heres one with aliexpress motors and udi props. by far the lowest cost setup.

you can see that at least it has enough power to lift off and dont go shooting off in random directions. when i get a chance ill replace it with a real video.
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Old Oct 29, 2012, 01:28 PM
RC beginner
New York
Joined Oct 2008
6,054 Posts
diy octo test flight

i tired to make some more videos of the diy octo sunday but wind and rain put a damper on that. and what with sandy howling away outside there might not be another chance for another week or two. so im uploading some old test files like i did for the 2 foot quad above. short and nothing fancy but it does show lift and yaw. maybe you can make out a couple 180s.

whats interesting is its using the "weak" blu/red 1mm shaft motors from ali. so apparently if you stick enough of them on there it does work out. with s107 or the blk/wht ones its hard to keep the quad from shooting up into the sky. i may need to adjust some throttle curves or expo to compensate but this is not quite as easy on the er9x modded v911 tx as on the original 9x so.... maybe later.

i put another short video up that might be of interest. it shows how spinning one prop causes the onther one on the same arm to turn also. this is because one acts like a generator with enough energy to power the other. anyway i thought this little trick was kinda cool. lol!
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