Gary McCray
  • Male
  • Fort Bragg, CA
  • United States
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Profile Information

About Me:

I am the Owner and Author of these advertising-free informative web sites:
Now flying, rolling or under construction:
  • Hoverthings FLIP FPV Pro Quadcopter with Pixhawk, 14" props, KDE 515kv motors, telemetry, Sony AS100V Video Camera, Brushlesss Gimbal and FPV.
  • Custom CF tube H/dead-cat Quadcopter with Pixhawk, GoPro, Gimbal & FPV.
  • Hoverthings FLIP Sport Quadcopter with PX4.
  • ARF DJI FlameWheel 330 Quadcopter with PX4.
  • ARF DJI Flamewheel 450 Quadcopter with APM 2.5.
  • Blade 200 QX, Hubsan X4 and Estes Nano Quadcopters.
  • My design: Hanging pendulum style robot with 2 brushless 26" bicycle wheels.
  • Traxxas Stampede 4x4 Rover with PX4.

Professional History:
  • (Retired) Microcomputer Engineer, Hardware and Firmware.
  • (Past) Lead Editor of DIYDrones APMcopter, APMplane and APMrover wikis.

Please tell us a bit about your UAV interest
  • Reentry into RC Planes 3 years ago.
  • Lots of PIC hardware and C and assembler programming experience.
  • Currently interested in Quadcopter development, robotics, 3D vision, environment relative autonomous navigation, Linux, Beagle Bone, Odroid, TOF cameras and LIDAR.

Hometown:
Mendota Illinois

Latest Activity

Gary McCray commented on Joe Renteria's blog post "Wing Board" using Pixhawk and GCS...
"The real problem with this thing is that CG wise it's a lot more stable upside down than it is right side up. The reason a hang glider works so well is that it's CG is well below it's flying surface. This thing is monumentally…"
6 hours ago
Gary McCray commented on noeL's blog post PX4, aerial 16x zoom lens Walkera Voyager 4
"Good looking design, with a Pixhawk no less. Is Software / Firmware open source? To bad it is a choice between 1080P Zoom camera and 4K fixed, really seems 4K zoom would be what you would want."
yesterday
Gary McCray commented on Rob_Lefebvre's blog post Procyon 800E Phase 2 Beta Testing Begins
"Hi Rob, Looks like you have built a really practical UAV with really long endurance for electric, a good speed range and a very straightforward design. And it certainly seems that this is one of the first platforms to use 3D printing as a practical…"
yesterday
Gary McCray commented on Rob_Lefebvre's blog post Procyon 800E Phase 2 Beta Testing Begins
"Excellent job Rob, A heli an engineer can truly appreciate. Superb example of form following function. Dual, redundant sounds like a tautology, but looking at the number of batteries you are using, I am guessing that that is what you are actually…"
Friday
Gary McCray replied to Chris's discussion Help building my first multi-copter
"Hi Chris, Basically, this information is available on the Ardupilot Wiki and at…"
Wednesday
Gary McCray commented on MarioSpeedwagon's blog post NorCal Man Becomes First in California to Be Arrested for Flying Drone Into Firefighting Zone
"In the days before "Drones" and even before "Park Flyers", the normal entry in the US into RC flying was through the AMA (American Modlers Association). In the US there are AMA clubs and flying fields everywhere, even here in the…"
Jul 18
Gary McCray commented on Greg's blog post Have Multi Rotors Killed the Helicopter?
"@ Rob +1 The article is not well written and references a lot of irrelevant or marginally relevant information. But as you said, the basic conclusion is correct. The most significant danger with helis is to dissipate all that rotational energy…"
Jul 18
Gary McCray commented on Chris Anderson's blog post July 4th sale on 3DR Solo: $479 without gimbal, $599 with gimbal
"Hi Chris, Got it figured out, had start up sequence wrong, for me at least seems to require a pretty explicit start sequence: Turn on IPad, Turn on Transmitter, Plug in battery and turn on Solo, Turn on Camera, Goto IPad setup and turn on Solo Wifi,…"
Jul 17
Gary McCray commented on MarioSpeedwagon's blog post NorCal Man Becomes First in California to Be Arrested for Flying Drone Into Firefighting Zone
"In spite of much talk here to the contrary, the reality is a lot of these things (almost certainly most) are purchased in the US by people with no previous experience and with absolutely no idea what they should or shouldn't do. And as for the…"
Jul 17
Gary McCray commented on Chris Anderson's blog post July 4th sale on 3DR Solo: $479 without gimbal, $599 with gimbal
"Hi Chris, I really appreciate the feedback, but you can be sure I quadruple checked and retried all of that before I ever wrote about it here. I actually pulled the gimbal and rechecked the internal HDMI cable too and the Gimbal is working fine,…"
Jul 16
Gary McCray commented on Greg's blog post Have Multi Rotors Killed the Helicopter?
"Hi John, I think Rob also agrees about the bad landings deficit. I wonder if that problem could be reduced through some innovative design though. Many copters already have free pivoting rotor blades which partially disconnects them from the mass of…"
Jul 16
Gary McCray commented on Chris Anderson's blog post Winners of Airbus cargo drone competition announced
"Indeed the rules pretty much forced you to make a convertible fixed wing / Quad or multicopter. But within those rules the entrants did definitely present some interesting concepts and some beautiful renderings. In the end, the main requirement was…"
Jul 16
Gary McCray commented on Greg's blog post Have Multi Rotors Killed the Helicopter?
"Unmanned helicopters will in the end have a very significant role in a lot of UAV uses. The large diameter rotor is intrisically more efficient than the multiple propellers of similar capability multirotors and there fore have higher carrying…"
Jul 16
Gary McCray commented on Chris Anderson's blog post July 4th sale on 3DR Solo: $479 without gimbal, $599 with gimbal
"Just an update, Got My Solo and Gimbal, but currently not so happy, no live video from the brand new GoPro 4 Black. The Faqs last check is to try a different camera - now if only I had a spare GoPro lying around. I will get an HDMI to Micro HDMI…"
Jul 15
Tom replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"same issue here, after i changed the system language from DEU to ENG it worked flawless. Thanks for the great tool! current output from my <250g mapper. thr_mid to 0 means no changes thr mid is near perfect?"
Jul 15
Gary McCray replied to Chris's discussion Why aren't there more single rotor drones out there?
"Don't get me wrong autonomous stuff will let you do some great things, but like Arne said, at this point in time and using the systems they are using these capabilities are subject to many forms of failure. Dependency on a GPS at the level it…"
Jul 11

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Gary McCray's Blog

Really, really stupid idea of the month, maybe the whole year!- - Drone attack Eagles!

Posted on February 1, 2016 at 6:56pm 38 Comments

I just saw this on our local news and was surprised nobody else had posted it here yet.

Easily the truly stupidest idea I have ever seen - Dutch Police train Eagle to take down drone.

Better than the UnAmerican Eagle in the Our Man Flint Movies (that dates me a bit I'm…

Continue

FAA/DOT UAS Registration - A Very Short Window to Comment

Posted on October 29, 2015 at 12:16pm 11 Comments

Hi All,

We have a very short window of opportunity to comment on the FAA's proposed registration process.

I have sent in the following comment which you are welcome to copy, edit, do whatever you want with, but I think it realistically presents a decent case for moderation and common…

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Great deal on a 3 axis gimbal with Alexmos controller

Posted on June 26, 2015 at 4:00pm 64 Comments

Just had to tell all of you about this $59.95 three axis gimbal deal on EBay:

This seemed like a great deal and looks to be identical to DYS Gimbal on Hobbyking which is $200.00.

I got one and quality appears excellent though I haven't tried to use it yet (I will probably get…

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My thoughts on the state of affairs.

Posted on February 11, 2015 at 9:30pm 3 Comments

Recently a local radio station asked me to comment on an interview relating to the current status of "drones".

I am enclosing the letter I sent to them declining phone interview for the reasons specified, but putting my "opinions" in writing instead for them to use as the…

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Comment Wall (5 comments)

At 8:14am on February 13, 2013, Jethro Hazelhurst said…

H Gary,

First off, thank you for the superb job on the F330 construction page and wiki table of contents.

I will Email you the Image so that you can put it where you see fit.

Many thanks again!

Jethro.

At 10:49pm on May 21, 2013, Jorge Antonio Saldaña Rosales said…

Hola que tal Gary sabes el hadware que necesito para hacer mi drone Cooperativo

At 5:17pm on May 22, 2013, Michael said…

Hi Gary,

Just a thing on shipping rates (from your comment). I was also mad because of high shipping. I sent support an email and they shipped the parts for free through standard mail! I got it in 2 days ( I live on the east coast). There is a size limit though, can't go above 13 oz, but for small parts its fine. Oh and btw, when you email them, ask for Lorena, it may take a day or 2 more because of her work hours, but she's been amazing with shipping like this.

 

Sorry this is the only way I could contact you!

 

Michael

At 3:35pm on March 26, 2015,
Admin
Thomas J Coyle III
said…

Hi Gary,

Re: Fire Cape

I have been thinking about it, but have not decided to move on it yet.

Thanks,

Tom C

At 1:30am on June 29, 2016, Jerry Zhang said…

Hi Gary,

I have read your comments on http://diydrones.com/profiles/blogs/autonomous-camera-imu-based-localization-for-a-ar-drone-quadrotor?xg_source=activity.

I am a student studying on path recovery using Parrot Ardrone2.0 . Is there a way to use its intrinsic sensor to do this? Do you solve it? 

Thank you.

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