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RT @chr1sa: Donkeycar 4.4 released with tons of new features, including path learning (useful with GPS outdoors), better Web and Lidar supp…
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RT @chr1sa: The next @DIYRobocars autonomous car race at @circuitlaunch will be on Sat, Dec 10.
Thrills, spills and a Brazilian BBQ. Fun…
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RT @SmallpixelCar: Race @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/kK686Hb9Ej
RT @PiWarsRobotics: Presenting: the Hacky Racers Robotic Racing Series in collaboration with #PiWars. Find out more and register your inter…
RT @Hacky_Racers: There will be three classes at this event: A4, A2, and Hacky Racer! A4 and A2 are based around UK paper sizing and existi…
RT @NeaveEng: Calling all UK based folks interested in @diyrobocars, @f1tenth, @donkey_car, and similar robot racing competitions! @hacky_r…
Replies
Try this website: http://aeroquad.info/bin/view
I am building a "stand design" quadrarotor and a Rad Rotary Rev 7 quadrarotor model.
Regards,
TCIII
T-Rex 450's:
Local hobby shops have everything. No UPS waits.
Really compact.
15 min flight times with 8oz of autopilot gear.
$100/hour in replacement parts. You could fly a full size R22 for less than an autonomous T-Rex 450.
Very noisy.
Hard takeoffs & landings.
Quad rotors:
$10/hour in replacement parts so far.
Extremely quiet.
10 minute flight times with 8oz autopilot.
Freakishly sensitive to center of gravity & propeller balance compared to single rotors.
If anything is unbalanced, the heaviest corner zaps the battery instantly & sends you flipping down.
Easy takeoffs & landings.
I am currently designing a TriDuino with three rotors using collective pitch to control the machine instead of throttle control. It will also have a single motor turning all three of the rotors. The theory is that it is much easier to control a single motor instead of trying to control three motors identically. The collective pitch changes should be instantaneous without having to wait for the motors to speed up or slow down(latency) and besides the collective should assist in flying in other than dead calm conditions. A fixed pitch helicopter is much harder to hold steady overall than a collective pitch helicopter due to the motor latency factor especially in a breeze or wind. This will be aimed at being used as a stable camera platform for imaging.
Jim