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 Gary Mortimer's blog post Alleged RPA/manned aircraft strike in USA
"Hi all, Greg, military drones in military circumstances are kind of the exact opposite of the circumstance we have here, they are in fact often pursuing or being pursued by manned aircraft, collisions are bound to occur. So, all bets are off for…"
2 hours ago
David Thuneman commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"Thank you, that seemed to help stabilize her.  Uggh that was a huge pain."
21 hours ago
Gary McCray commented on Gary Mortimer's blog post Alleged RPA/manned aircraft strike in USA
"Hi Greg, I'm not saying that the idiot UAV pilots can't do it, just very few of them do and the normal result is now that they kiss their $1000.00+ investment good bye very quickly. I wasn't saying it was impossible and certainly if…"
23 hours ago
Muhammad Al-Rawi commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"The sensor axis TOP and RIGHT don't look right to me. Could be wrong though.   Going off the MPU's axes, I think RIGHT should be +Y (facing the camera) and TOP should be +X. "
23 hours ago
Gary McCray commented on Gary Mortimer's blog post Alleged RPA/manned aircraft strike in USA
"Not saying the damage can't occur in flight, just that it is suspicious it is the tail, not the wings, fuselage or prop which have a hugely higher likelihood of being involved in an in air strike. Also, wasn't saying it was necessarily a…"
yesterday
Gary McCray commented on Gary Mortimer's blog post Alleged RPA/manned aircraft strike in USA
"One further comment, notice the claimed 2500 feet altitude, in fact many of the claimed sightings by commercial pilots have been around this altitude or higher. Think about it, isn't that in itself really suspicious? Those of us who actually…"
yesterday
Gary McCray commented on Jimmy Oliver's blog post Stop California Bad Drone Law
"Drones are a hot political football, mostly kicked around to curry favor of voters and other legislators. Very little logical or reasonable happening here and sadly, once again, California is at the forefront of the stupidity. The fact of the matter…"
yesterday
Gary McCray commented on Gary Mortimer's blog post Alleged RPA/manned aircraft strike in USA
"I notice the report says that they "Struck an unknown object while in flight". So does that mean the UAS thing is just a supposition or is there additional information that suggests the crew saw something? There doesn't seem to be any…"
yesterday
Gary McCray commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"Hi David, Just a few thoughts, I found some references to insufficient power at the USB port to power it by USB only. I am using both battery and USB and it works OK. You really can't set these up on USB only (at least with normal power…"
yesterday
David Thuneman commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"I've tried a few different PID settings that apparently worked for other people and inverting the motor configuration like you said, and this is still flipping out.  Maybe I should try and get a replacement from dslrpros but their page…"
yesterday
Muhammad Al-Rawi commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"David, Could you post a screenshot of your pid page? Kind of looks like the motor directions are incorrect."
yesterday
David Thuneman commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"Hey, so I recently purchased this gimbal and I am having an awful time getting it to work properly. It basically just spins wildly out of control and I'm not sure of anyway to fix it. I've tried some of the postings PID values but it still…"
yesterday
Gary McCray commented on Gary McCray's blog post And Now for Something Completely Different - APM:Bot
"Also slight further update, Microsoft has completely dropped the ball on the robot development system. Since Bill Gates fully left, Steve Balmer completely cancelled the project, so the "Robot Development system" is no longer a viable…"
yesterday
Gary McCray commented on Gary McCray's blog post And Now for Something Completely Different - APM:Bot
"Hi Esa, I'm afraid I've been working on other things, but my initial plan was to use a Pixhawk for the primary control with an RC system and then add a companion computer (originally a PC, but now probably an Odroid or RaspPi2 for more…"
yesterday
Esa Attia commented on Gary McCray's blog post And Now for Something Completely Different - APM:Bot
"Hi Gary, Just wondering if you have an update on this robot ? I'm planning on working on something like this and am wondering if you maged to get this robot going ?  If so what autopilot did you use onboard ? would the stock APM:Rover…"
Friday
Gary McCray commented on VGR-Systems's blog post New patented tilted coaxial VTOL
"Hi VGR, Very interesting and mechanically simple design. Please correct me if I am wrong, but you actually seem to be using "pendulum effect" to control pitch and roll. Your prop center of thrust is well above your CG and without tilting…"
Thursday

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Gary McCray's Blog

Great deal on a 3 axis gimbal with Alexmos controller

Posted on June 26, 2015 at 4:00pm 56 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…

Continue

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…

Continue

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

Posted on June 28, 2014 at 2:47pm 4 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…

Continue

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!

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

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