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

Gary McCray's Friends

  • Dangin
  • Sebastian Blaga
  • Eric Krasting
  • Jad Bouez
  • Robert Merki
  • Yutaca Sawai
  • Twing Kewl
  • Daniel Lachance
  • Rob Thompson
  • J M
  • Troy Mestler
  • Daniel Liebeskind
  • giel aragon
  • Mike P

Gary McCray's Groups


Gary McCray's Page

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 two 26" brushless 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.

Mendota Illinois

Latest Activity

Gary McCray commented on UAS_Pilot's blog post Another APM Powered Quad from Aerosky
"Hi Nathaniel, You are absolutely right, looks like they are using a APM clone at some level at least. If that is true, they are legally obligated to provide open access to their design and their firmware. However, like at least some other Shenzhen /…"
Gary McCray replied to Thomas J Coyle III's discussion Pixhawk Details #2: Multicolor led and connector demo
"Hi Andrew, please see Cala's discussion of DF13 connectors including my…"
Gary McCray commented on UAS_Pilot's blog post Another APM Powered Quad from Aerosky
"UAS Pilot, You are probably right, but the fact that they have provided sufficient compatibility to run DroidPlanner is not a guarantee that there is sufficient for it to work with Mission Planner or that they have even provided the interface to do…"
Gary McCray commented on UAS_Pilot's blog post Another APM Powered Quad from Aerosky
"Hi UAS Pilot, I just looked at their manual here: It shows compatibility with Droid Planner using the optional "link" module but doesn't say anything about Mission Planner. From the…"
Gary McCray replied to Cala's discussion Pixhawk connectors in the group PIXHAWK
"Hi Cala, Richard, DF13 connectors have been a hotly debated (and despised by many) issue since the PX4 first came out. I hate them, a lot of other people hate them, Lorenz Mier loves them and he designed it so we have DF13 connectors. (Not trying to…"
Gary McCray commented on CrashingDutchman's blog post Turnigy Replikator 3D printer
"Hi Tyler, I expected my toy comment would elicit some dissent, I think the key word is most. I should have emphasized that a bit more. There are a lot of really inexpensive printers similar to this one and at the very least, they are fussy to learn…"
Gary McCray commented on CrashingDutchman's blog post Turnigy Replikator 3D printer
"Really nice results John, Your comments reinforce my belief that most of the 3D filament printers live somewhere between tool and toy with a fairly strong emphasis on toy."
Gary McCray commented on CrashingDutchman's blog post Turnigy Replikator 3D printer
"I looked at this from my Hobbyking Email this morning and it does look impressive for the money. All the right basic stuff for an inexpensive 3D printer. Of course, ball screws and full support linear bearing rails would be better, but basically…"
Gary McCray commented on Bertrand Duchiron's blog post Chimpanzee knock off a drone with a stick
"Chimp 1 drone 0. He was just waiting for it - then "Whack A Drone!""
Gary McCray commented on Chris Anderson's blog post Full Solo launch video
"Maybe I missed it somewhere, but what does the companion computer actually do in the Solo? There are lots of good reasons for having one, - optical flow, 3D odometry, I just didn't see any of that here. No criticism intended, the capabilities…"
Gary McCray commented on Chris Anderson's blog post Now *this* is how to make a carbon-fiber drone
"It was a stealth drone they were building, now it's a stealth video about a stealth drone - Typical Lockheed!"
Gary McCray commented on Greg Nuspel's blog post New Blackmagic drone camera
"Wow, At $1000.00 for 1080 and $1300.00 for 4K Black Magic has just kicked the high end bar up a lot higher. As far as I'm concerned this is better news than the Solo. Actually puts Pro cinematography in the reach of ordinary people. I know you…"
Gary McCray commented on Gary Mortimer's blog post 3D Robotics introduces Solo, the world’s first smart drone
"Interesting looking Quad with some neat capabilities. I would like to know how the Pixhawk-2 fits into DIYDrones Open Source Open Hardware scenario. Is it? When do we, many of us people who have spent a lot of time working with and evolving it, get…"
Gary McCray commented on Chris Anderson's blog post Now *this* is how to make a carbon-fiber drone
"Nice to see our government at work spending our tax dollars and then not letting us see what thy are spending them on. Used to be great to be American."
Gary McCray commented on Chris Anderson's blog post Now *this* is how to make a carbon-fiber drone
"I need one of those in my shop. Of course I'll need a bigger shop."
Apr 12
Gary McCray commented on Chris Anderson's blog post BBC replaces Top Gear with "Airheads", a DIY Drones show
"Hi Todd, Yeah kind of a combination of Motor Week and Monty Python, I'll miss it too. I suspect if they were doing the drone show it would set our regulatory possibilities back about a hundred years. The FAA would probably react the same way…"
Apr 12

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Gary McCray's Blog

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…


GoPro 4 is Here - Sort of!

Posted on September 29, 2014 at 10:30am 36 Comments

GoPro is finally announcing the new 4 Silver and Black:

It , of course has the new 30fps 4K and - not surprisingly costs $100.00 more than the last one so now $499.00.

Probably using the new Ambarella 9 chip, but no mention made of built in electronic image stabilization…


New 1 at a time ESC calibration method for PX4 or Pixhawk

Posted on June 28, 2014 at 2:47pm 3 Comments

One of the Problems with the PX4 / Pixhawk is that it uses a PPM-Sum receiver which when so configured may not work at all for the normal receiver based method of one at a time ESC programming.

And especially so for 4 in 1 ESCs.

The one at a time method I have developed uses the Wikis…


Drones Are Fun an informational resource for everybody interested in UAVs, especially for personal use.

Posted on May 29, 2014 at 5:25pm 21 Comments

Hi everybody,

Gary McCray here, past wiki editor for DIYDrones, announcing my own Informational Web Site:

I am very much strong advocate of our APM and Pixhawk flight…


Comment Wall (4 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!


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!



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

Hi Gary,

Re: Fire Cape

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


Tom C

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