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

Hometown:
Mendota Illinois

Latest Activity

Gary McCray replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Hi Dan, It does not seem to me that the (non-recreational - hobbyist - non-commercial) issue itself needs to stop you here. You are definitely doing this as a non-commercial venture for which you will receive no compensation and you could certainly…"
2 hours ago
Gary McCray replied to Rolo's discussion Newbie here...Im really lost
"Hi Rolo, We've all been there. 1. DJI F450 Flamewheel frame is a great place to start. - Please go to my quadcoptersarefunj.com site about the 2 Flamewheels build for most of what you need to…"
2 hours ago
Gary McCray commented on DAS Lab's blog post SWIFT Propolsion unit 1st test
"Hi Julien, Ive got a H copter design with only 2 motor support spars going completely side to side, it might be possible to stack the batteries end to end in each one. using a thin carrier to 2S-2P them and combine them for a total of 2S-4P. I…"
5 hours ago
Gary McCray replied to Dan McKenna's discussion Lubrication..every 6 flights? in the group IRIS
"Hi Guys, One topic that has been completely inadequately covered in this group is motor lubrication. We use tiny little bearings and in multicopters, the bearings used are not even actually designed for a thrust load. They are Conrad style pressed…"
12 hours ago
Gary McCray commented on F. C. Bearsch "Tearig"'s blog post A Microsoft Vision of the Future...
"And, Of course on a "somewhat" more immediate level, there is this: http://www.microsoft.com/microsoft-hololens/en-us "
13 hours ago
Gary McCray commented on DAS Lab's blog post SWIFT Propolsion unit 1st test
"Really nice modular propulsion unit and great use of CF tube to hold 3 18650 in series. Seems like it could be a useful concept in a quadcopter if you could keep the current low enough. Best Regards, Gary"
yesterday
Gary McCray replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Hi Erik, Yes you are right, I was not using the term legal to indicate a law passed by Congress, it is, indeed a policy - regulation issued by the Forest Service leadership, but their "policies - regulations" do have the force of law. If…"
yesterday
Gary McCray replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Hi Guys, First, NFS - National Forest Service is the same as US Forest Service, it is in common use and is in fact an abreviation used by the USFS itself. Second current interpretation of the Wilderness use is that drones are NOT permitted. Please…"
yesterday
Gary McCray commented on Jay Land's blog post Flight Mode Switch setup for a Tactic TTX850
"Hi Jay, I have and have used the PPM conversion board several times. It is really not a good solution, they heat up use too much current and are unreliable. A much better solution is one of the PPM compatible receivers, such as are made by Fly Sky,…"
Friday
Gary McCray commented on Thomas J Coyle III's blog post Drone Maker 3D Robotics Raises $50 Million In Latest Round
"Congratulations Chris and Jordi, Guess will be hearing more about Snapdragon processors as flight controllers. Clearly the FAA's "repositioning" regarding civil use of "drones" is having a major effect on investments and…"
Friday
Gary McCray replied to Chris Mitchell's discussion Can quadcopter motors be mounted upside down ?
"With current multicopter motors, there is really no difference at all between up or down, push or pull. The bearings used in all multicopter motors at this point are a simple pressed "Conrad" design and they work just as well with the…"
Friday
Gary McCray replied to Dan McKenna's discussion Research using IRIS..not allowed!? in the group IRIS
"Hi Dan, Unfortunately, I believe that the NFS has issued it's own prohibition for all civil drone use over NFS land. Mostly resulting from a very few isolated but media hyped incidents. Most notably crashing a Phantom into Yellowstone's…"
Friday
Gary McCray commented on HeliStorm's blog post Soon to be Released: Full HD Capable Micro Brushless Gimbal for 200 Sized Quads
"16 grams sounds really great Jamie, Honestly don't think you could make them any lighter for this application with a Mobius. Definitely look forward to seeing prices, size, availability and more information on the gimbal motors. Looking to…"
Thursday
Gary McCray commented on Greg Dronsky's blog post FPV Gimbal For Zoom Camera - First Week of Tests
"Wow, if your doing 27x Zoom and only getting minor vibrations at full zoom you are doing "Really" good. I think this is a great project and am happy to see it going so well. Best, Gary"
Thursday
Gary McCray commented on HeliStorm's blog post Soon to be Released: Full HD Capable Micro Brushless Gimbal for 200 Sized Quads
"Hi Joylon, Really happy to see two 1806 sized gimbal motors available. The Goodluckbuy ones look like they should work fine for a light weight Mobius gimbal. And I actually think the fact that the motor housing is not open frame should help keep…"
Thursday
Gary McCray commented on HeliStorm's blog post Soon to be Released: Full HD Capable Micro Brushless Gimbal for 200 Sized Quads
"Hi mP1, Their are several problems with servos which brushless gimbal motors don't have that make them much less desirable for gimbals. They all have gear backlash which shows up as jitters, especially when constantly reversing to relevel the…"
Wednesday

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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…

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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…

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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

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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