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

Philip Lorentz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Yes, you can get rid of $$$ much faster with UAVs than just tearing them up and chucking them in the air! Thanks for the offer, my existing logs are a bit on the large side so I'll log a shorter flight and post that. My X8 hovers in Alt Hold…"
3 hours ago

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"so all of you $$$ goes into UAVs ... good man you can use Excel Frantz.  it's free.  following directions stated by Cala, post your log file (in MP download the bin, create the log, then post it).  I'll take a look and post…"
4 hours ago
Philip Lorentz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Hi Forrest, Many thanks for making your spreadsheet available, I am eager to use it but don't have access to the latest MS Excel. I have tried both LibreOffice Calc and Excel '97 with compatibilty pack but Libre's Basic macros…"
6 hours ago
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Follow this instructions, they are very clear, http://copter.ardupilot.com/wiki/ac_measuringvibration/ then read this one  http://copter.ardupilot.com/wiki/vibration-damping/ then download Forrest vibration Analyzer that you find in…"
9 hours ago
Richard Kennedy replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"I m new to reading logs. I have one loaded [ AP2 ] and see things on the right I can check to include in the graph. Which / what is the correct one to see vibration levels?? Thx"
20 hours ago
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's Forrest you win a barbacoe criolla when you visit Argentine ;)"
Thursday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"excellent!  Well done Cala.  Enjoy flying."
Thursday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Today Tarot time: my new cuad flies well in calm and windy days but, perhaps it can do it better? or it's OK like this? the only strange thing that I notice is that x values are the bigger ones¿?, and perhaps I have to repeat…"
Wednesday
Gary McCray commented on Todd Harper's blog post FAA Can Make All Drone Flights Illegal, Federal Court Rules.
"It is going to be an interesting next year. This Christmas, tens or hundreds of thousands of "toy" quadcopters, many with cameras are going to teens and pre teens. And many thousands more of Phantoms and other mid range ones are going to…"
Wednesday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank?s Forrest, when I put one I didn't like very much for all that I learn, I see that washer, next purchase I ask for them or try to CNC made not to wait next year; thank's for recommendation :)"
Wednesday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Moving the props away from the motor: - adds weight which can dampen vibration - but putting the prop at the end of a taller pole, amplifies x/y vibration - moves the prop further away from the motor mast which has a very slight + affect on lift -…"
Wednesday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Now I'm trying to transfer what I learned here to my new cuad. What do you think about this quick detach and vibration levels? they can affect them? without they look's a little tall? Thank's "
Wednesday
Gary McCray commented on David Anders's blog post Woman snapped sunbaking by real estate drone
"We are eventually going to have to deal realistically with the simple fact that our multicopters provide plenty of opportunity for unintentional and intentional invasion of privacy. This is already a huge issue for the public and the media, both of…"
Monday
Gary McCray commented on Roberto Navoni's blog post VR micro Brain 5: The VRX uBrain Radio Telemetry module lite is available .
"Very nice Roberto, Really like the high performance micro direction you are headed in. How much does micro gimbal with gimbal motors weigh? The gimbal motors look a bit large in comparison to these available from…"
Nov 15
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's Gary for your very clear explanation, I was surprised when I saw this, the copter lives in a dry room so humidity don't recive, yes it flies in dusty conditions but my concern is that dirty looks like grease and the only place that…"
Nov 15
Gary McCray replied to Randy's discussion ArduCopter-3.2 beta testing
"Just a quick thought here Guys, Since we really need to keep the Beta Mission Planner in use for the Beta 3.2, mightn't it not be a good idea on the Beta Mission Planner top line to indicate that you are using the beta version, perhaps by…"
Nov 14

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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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