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


MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"a little silver, instead of lead, also helps.  not sure which is more toxic to the body.  i use nothing or silver (Radio Shack has it)."
yesterday
Jon replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"In the UK there are restrictions on lead in solder and I found difficulty using the normal solder that they sell in the shops. I found that using solder 60% tin 40% lead a lot easier to use and was easy to get on ebay."
yesterday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's for the tips Forrest, you are an open book :O , i'm using a 42W (Good) solder, I don't use flux, I'm going to ask for it."
yesterday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"i used to hate soldering too.  found out that the key was the equipment: - temperature controlled 700 - 900F - enough wattage for quick heat replacement (LF-1600 works) - using the right tip (my favorite is a small flat tip) - tinning the tip…"
yesterday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's I'm going to try that when I finish installing new FPV, I hate soldering UFF!!!"
yesterday
Gary McCray commented on Jan Sova's blog post Thermal imaging system for drones
"Hi TBD For the hobbyist and DIY market, the Seek IR imagers seem to be the way to go: http://obtain.thermal.com/category-s/1818.htm They are considerably higher resolution than the similarly priced FLIR One smartphone model. Unfortunately nothing…"
yesterday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Tip Trace  - tip trace is moving the props to your measuring tape (measuring tape stays at the same place).  Actually the measuring tape has two locations that are 90 degrees from each other just to ensure that you aren't measuring…"
yesterday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"If I find a diy solution I share it but, if you didn't do it yet.......it's look difficult :( . When I chek the props side to side (tip trace) the worse has 3mm and I can repair it :) , it has a little excess of balancing glue"
Monday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Impressive.  good find. Now if someone can figure out how to do that with the prop mounted on our motors, it would sell big time.  my solution cost over $1K (an Extech Vibration Meter).  If someone could build and manufacture one that…"
Monday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"osciloscope method didn't work :(, What do you think about this?http://www.turbinemuseum.de/Gasturbines/Balancing_Tool/balancing_tool.html ; any other idea for dynamic balancer?"
Monday
Gary McCray commented on Jethro Hazelhurst's blog post HD FPV system now being prototyped!
"Hi Gavin, Great video and very nice system. I really think it would be great if you would do a Blog post of your own here, possibly describing each of the components and providing links for them as well as describing the software and firmware setup…"
Sunday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's Forrest, I'm going to try like this; I have the idea to check dynamic balance with my phone, not shure how presicion it has, I comment this to a friend and he tells me that it's no difficult for him to make one with a…"
Saturday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"my bets on the ship landing in the soup :-)"
Saturday

MR60
Forrest Frantz replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"The Secrets of Prop Balance, Tip Trace, and Dynamic Balancing. Balance (mostly x/y vibs):  I use two plastic cones on a steel rod between two magnets.  then sand off a bit of the heavy side of the prop. If looking at the prop from…"
Saturday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"This graph are nice to see vibrations, that log is in windy conditions, that couldn't influence in pendulum too?, When I return from vacations I try in the kitchen, It's mine ;) ."
Saturday
Cala replied to Gary McCray's discussion Vibration Isolation and Dampening of APM / PX4 for version 2.9
"Thank's Forrest, I know now that, if I need to isolate the APM is because something is wrong in my setup, I confirm with the Tarot whit APM fixes and fly well, so I have to discover the problem, the frame looks stiff but I don't like very…"
Saturday

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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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