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 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.

Hometown:
Mendota Illinois

Latest Activity

Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"Hi Hugues, I developed the suspended O-ring platform before I knew about Zeal and have always found it to yield good results, and in fact, the first results we ever had that consistantly got our vibrations down into the "satisfactory" sub…"
19 hours ago
Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"Hi Hugues, All I did was use longer small machine screws in each corner with a nut threaded down to actually secure the top of the case and leaving about a 1/8" gap between the top of the nut and the bottom of the machine screw head. This is…"
21 hours ago
Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"Hi Hugues, All I did was use longer small machine screws in each corner with a nut threaded down to actually secure the top of the case and leaving about a 1/8" gap between the top of the nut and the bottom of the machine screw head. This is…"
21 hours ago
Gary McCray replied to Ted Byers's discussion What is the relation between the motors in a quadcopter, the propellers, the battery, and flight time?
"Hi Ted, It was really an exercise in making a high endurance copter with (mostly) inexpensive parts, he definitely proved it could be done, but you don't really end up with a practical copter for actually doing anything. As for motors, KDE is…"
yesterday
Gary McCray replied to Ted Byers's discussion What is the relation between the motors in a quadcopter, the propellers, the battery, and flight time?
"It is actually possible to build an endurance copter with those cheap components, lots of people have done it and I have a set of those cheap RC Timer motors myself. However, it is NOT a practical quadcopter, it handles very poorly, is very…"
yesterday
Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"The above pictures are very high resolution and you can click - zoom in on the right side pair of Lord mounts and the front, rear and right side Sorbothane hemispheres to get a good idea of the fit. Olivers and my Flip FPV Pros have factory…"
yesterday
Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"This is the Amazon link to the Sorbothane 1 1/4" hemispheres I…"
yesterday
Gary McCray commented on Hugues's blog post Review and tests of anti-vibration systems
"Hi Hugues, excellent work on vibration analysis comparing the 2 methods. Recently I have been flying a Hoverthings FLIP FPV Pro G Dead Cat style quadcopter which features a "live" intermediate frame suspended in compression on 4 Lord style…"
yesterday
Gary McCray replied to Franc's discussion This has to stop. Wings vs. Multirotors.
"Hi Franc, From what you have said, there was no legal or regulatory justification for what they did. It was based on complete ignorance of the law. There is no hobby difference between a multicopter and any other RC model unless you operate it that…"
Sunday
Gary McCray commented on Marco Sterk's blog post Air Traffic Control for Drones - MIT Technology Review
"That's a very nice looking quadcopter design."
Friday
Gary McCray replied to Dacoda Bartels's discussion Problem Issue's with the 3DRobotics Iris+
"Hi Dacoda, Just a suggestion, next to a flowing lava field, salt water is about the most hostile environment I can imagine for a non waterproof quadcopter. The moment any exposed electronic component gets even the smallest amount of salt water,…"
Friday
Gary McCray commented on AKRCGUY's blog post How To Choose Your First Quadcopter
"Hi AKRCGUY, I have placed your video here on my quadcopters are fun sites quadcopters page. http://quadcoptersarefun.com/Quadcopters.html#PickAQuacopter I think that is the appropriate spot, if you have anything you would like me to add, please let…"
Friday
Gary McCray commented on AKRCGUY's blog post How To Choose Your First Quadcopter
"Sorry, It was probably excessive. I'm just trying to promote a positive initial experience so that you can get you to the point where you can actually fly a quadcopter with the least expense and danger to yourself or anybody else. Neophytes…"
Thursday
Gary McCray commented on AKRCGUY's blog post How To Choose Your First Quadcopter
"Hi AKCRGUY, What you are actually talking about is position holding capability in a wind. I will certainly grant that a number of the featherweight Horizon and Traxxas copters do a really bad job of that, however they also come with instructions…"
Thursday
Gary McCray commented on AKRCGUY's blog post How To Choose Your First Quadcopter
"@ AKRCGUY, I completely disagree about sub $500.00 quadcopters being less stable. A GPS doesn't actually do much for increasing stability and many of the small cheap toy quacopters are easier to actually fly than any of the bigger ones. To say…"
Thursday
Gary McCray commented on AKRCGUY's blog post How To Choose Your First Quadcopter
"Really excellent video Akrcguy, On my quadcoptersarefun.com site I am adamant about people starting with a safe and resilient toy RTF drone like the Hubsan John shows above or the UDI818A so they can at least learn to fly satisfactorily before…"
Thursday

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Gary McCray's Blog

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…

Continue

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…

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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: http://www.dronesarefun.com/

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

Continue

BeagleBone Black available - if you're quick.

Posted on March 5, 2014 at 11:00am 32 Comments

Hi all, Beagle Bone Blacks are available at Adafruit this morning.

I wouldn't ordinarily put an Advertisement for a product as a Blog but as you may or may not know, Beagle Bone Blacks are seriously hard to come by.

Everybody is out of stock all the time, except a fewy unscrupulous dealers who…

Continue

Comment Wall (3 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

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