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i think its this one http://www.cybertechuav.com.au/-Overview,85-.html , http://www.multirotorforums.com/showthread.php?215-Cyber-Technology-to-use-Quad-to-monitor-Swimmers just a lazy 27k, no prob, let me check my other pocket.....

well done, as we say down here 'ROFLCOPTER' :D

@gary - well i better chase the 'dingos' up to 'throw another shrimp on the barbie' and send one of these board 'over the ditch' for testing here :-)

thats cool, just had no idea who "holger" was :) (and I call myself a news blogger....)

bring it ! :D haha, had to edit this post wrote "bring it" in CAPS and it changed it all to lower case. my smiley also didnt work, as it changed from ":D" to ":d" :)

I wonder if its the other way around, The failure may have been in the control circuit feeding the fets (lost sync or other issue), and when the fets cooked up, the heat was enough to lift R25's solder pad, which may not have been the best to start with. If R25 had gotten hot (unlikely) it...

sorry bart - not sure on the "holger" reference. Electric technician for 4 years, instrument tech for 13 years, did 75% of an engineering certificate in electronics, but life got in the way and never finished

If R25 Fails, the FET will not switch on, R24 will keep the FET off. Phase C wont stay positive, it will only go Positive when the Fet above is turned on. Howver, it will stop the motor turning, will act as if the motor has lost a winding, and cause a massive amount of current thru the...

dave - sorry to hijack the thread, whats the YAW control like with a Y6 ? tried a Y4 and was very disapointed

i have found 170 watts per 1 kg thrust is a good ball park figure, some setups (low rev) are more efficient, i also know that the flycam 925's on 10 by 5 props and 3S do aprox 800 grams (tested on scales and on 4S they did just on 1.3kg (also on scales) it takes 55 watts to hover one 1kg...

try 4S and 1.3 kg thrust per corner on a 1000g quad :-)

so.... does that mean i need to stop calling Droider a "droidworx fanboy" in fear of being moderated ? :D :D Good on ya Droider for stepping up to help Bart.

about 185 grams http://www.rcgroups.com/forums/showpost.php?p=17055972&postcount=1

Speaking on behalf of all of NEW ZEALAND, we need a sample board down here for assesment. it may not work, us being upside down and all....... seriously, would love to get my hands on one to compare with the KKuk and FY90Q

argghhh ! VIMEO , my laptop hangs on MP4 1280 by 720 video :p I have to download it to have any chance of actually playing it - those tumbles while in forward flight are very impressive, the guy knows how to twiddle the sticks :-)

@ crash , dont know if ardupilot can do a dual prop, I know the kkuk can Well, my weekend just disapeared, Fedex delivered a small cardboard box with some shiney stuff inside ! Ardupilot is in the building !

Wake up Dave, its well into the morning, im just about to have a coffee to keep awake.kids are still up too, ratbags, playing xbox well into the nite I worry about you and your multirotor.... :)

Nice work, I have yet to try FPV on a multirotor, helped a friend do it last weekend, very hard to keep track of height and drift (and hes a veteran heli/3d pilot) so your second attempt is awesome ! you did well, esp flying low over the fences/barriers. Must be a kick to see yourself from the...

Hi Dave, yep its 10:30 at night, and getting ready to hit the hay I dont think my esc's get over 10deg above ambient in normal operation, but the are 25 amp rated, and only operate at about 5 amps in hovering. Would I fit heat sinks ? if my temps were getting over 40-50 deg , yes, as with...

Rule of thumb for electronics is 80 deg C max, basically if you cant hold your finger on it for 2 seconds its too hot, for motors , 60 deg or so is the max (magnets start to break down above 80-100 dep on mfg)