Tag: drones - Page 36 - Eric Cheng
Eric Cheng

Tag: drones

Rotorpixel Gimbal Lite prototype on a DJI Phantom quadcopter. Verdict: it works very well. It is incredible to have such stable video platform from such a small platform. On a Turnigy Nano-Tech 2200MAh 45-90C LiPo battery, I got just over 6 minutes of flight time (no crazy stunts). This isn’t great, for flight time, but the ...

[youtube https://www.youtube.com/watch?v=U2oA7G4d_ok?feature=oembed&enablejsapi=1&origin=https://safe.txmblr.com&wmode=opaque&w=250&h=141] For $299 assembled, the Witespy Flip quadcopter is a great little aircraft. I attached a GoPro HERO 3 to the frame using a velcro strap and did a few nervous flips with it—nervous, because the quad was really heavy. I was using a 2200MAh 3S battery which, combined with the GoPro, seems to ...

[vimeo 64937816 w=250 h=141] With 9" x 4.7" Gemfan carbon-fiber props, the Phantom has plenty of lift and easily accelerates upward while hauling a GoPro HERO 3 camera, 2-axis gimbal, FPV transmitter and antenna,  and chopstick landing gear extensions. I flew around for 8.5 minutes, which is about 1 minute longer than I get when flying ...

I’ve been reading for a long time that the DJI Phantom is “less stable” with 9" props than it is with 8" props. Today, I finally managed to get a set of 9" x 4.7" Gemfan carbon-fiber props onto my Phantom, which I attached securely by using a M6 lock nut and a M8 washer. I used a metric ...

Ray of No Mo Jello wire isolation mounts sent me a new (larger-than-usual) isolation mount to use on my DJI Phantom quadcopter in conjunction with a quadframe.com 2-axis gimbal. I ended up getting them to work together, but not using the standard GoPro mounting holes on the DJI Phantom frame. The problem with mounting gimbals using the two default screw ...

I went to the first SF Drones Startup Meetup tonight, which was hosted at NextSpace in downtown San Francisco and organized by Bryan Galusha. There was a fantastic turnout and the following interesting presentations: Robert Seidl talked about the (incredible) real-time video processing software developed by one of his companies, Realtime Video Systems. Bryan Galusha demoed Fighting Walrus Radio​, ...

Oops. Sorry, Dave! (he took it well, and said it was an honor)​. I’m glad no one was hurt. (Source: https://player.vimeo.com/)

I was flying my Witespy Flip today, and the circlip broke off mid-flight, which means that the top half of a motor, which includes the shaft, bearings, and propeller, flew off. Unfortunately, my quad was a couple hundred feet the air at the time, and it came tumbling down to the ground (over dirt and grass). The ...

The previous post contains pictures of my DJI Phantom quadcopter with the quadframe.com 2-axis gimbal for GoPro attached. The footage is straight from my GoPro HERO 3 camera, with no stabilization in post, and you can see that the orientation correction from the servos is a bit jittery. I’m flying around pretty aggressively, here. Tomorrow, I’ll take the quad for ...