DougB
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  • Denver, CO
  • United States
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DougB's Discussions

ArduCopterNG Beta2 - Compass Offsets

Started this discussion. Last reply by Jani Hirvinen Dec 22, 2010. 40 Replies

Sony Webbie HD MHS-PM1

Started this discussion. Last reply by Morli May 15, 2010. 5 Replies

 

DougB's Page

Latest Activity

DougB replied to Rob_Lefebvre's discussion New Octo Copter Design/Build Thread
"Hi Rob, Anyway you can throw up some info on your H8 before I order any more stuff? Thanks"
Apr 2
DougB replied to Rob_Lefebvre's discussion New Octo Copter Design/Build Thread
"Anything new on this Octo. I'm actually getting around to ordering parts to complete the project. I have all the cf parts that I ordered from Rob a year ago :(. Are there any changes I should make from the original design in the way of motors,…"
Mar 30
DOZDOG commented on DougB's blog post DraganFlyer disappears
"If you fool around with Bees, you will eventually brick one!.  I did, but fixed it differently than most on-line instructions. The forced boot-loader, and RST ploys both failed in my case.  But since I've messed with computers enough,…"
Nov 24, 2013
DougB commented on Andrew Tridgell's blog post Tuning the TechPod
"Wayne, I'm building the tail section now. Is there an easy way to set the -1.25 degree down angle for the elevator?  How are you doing on the adjustable tail incidence?"
Aug 21, 2013
DougB replied to Andrew Tridgell's discussion APM:Plane 2.74 released
"Is there a way to set up differential ailerons in a elevon configuration using the APM elevon mixer? I see in the Wiki directions for setting up differential ailerons using discrete aileron servos but I don't see anything when using elevons and…"
Aug 12, 2013

Developer
Mark Colwell commented on DougB's blog post One way to Restore a bricked xBee
"Had to follow this procedure several times, after 4 tries the firmware finally installed. I caused the lockup by removing the ground wire by mistake.  Xbee 900 Pro locked up real good. Only red led on, no green led. But all is well now."
Jul 26, 2013
DougB commented on Chris Anderson's blog post Introducing the new better, cheaper APM 2.5+ kit (with power supply/sensor, enclosure, new GPS)
"I can work with the 100A's but three of my platforms run on 6s's so a increase in cell count would cause me to by more of them."
Nov 23, 2012
DougB replied to Rob_Lefebvre's discussion New Octo Copter Design/Build Thread
"On my big Quad that is running with 2x6s 5000ma and 60 amp speed controllers I found some computer memory fined heat sinks and cut the heat shrink tubing away from the the esc heat sink area and glued the memory heat sinks onto the esc heat sinks.…"
Nov 22, 2012
DougB replied to Rob_Lefebvre's discussion New Octo Copter Design/Build Thread
"I would pay the extra for the CF"
Nov 8, 2012
DougB commented on AKRCGUY's photo
Thumbnail

X-8 Covered

"Adam, What Carbon Fiber Wrap did you use? Thanks"
Oct 29, 2012
Francois Sabourin commented on DougB's blog post One way to Restore a bricked xBee
"After two seasons of reliable service, the airborne Xbee bricked testing firmware 2.63 on my APM 1.4 2560. The flashing procedure in this post still worked for me."
Sep 19, 2012
DougB replied to Greg's discussion Octocopter Frames Kits
"Hi John, Have you had a chance to test the octo?"
Sep 3, 2012
DougB commented on Hai Tran's blog post ArduIMU+ V3 camera gimbal stabilizer on IndieGoGo
"Greg, I have a Ver2 board and I wanted to try your code on it to see if I have the same problem as V3 board. Can you give me the pinouts for the servos and RC for V2 board or give me a link to find them."
Aug 15, 2012
DougB commented on Hai Tran's blog post ArduIMU+ V3 camera gimbal stabilizer on IndieGoGo
"Greg,  Still no response for rx input on any channel and only roll servo responds to moving the board"
Aug 14, 2012
DougB commented on Hai Tran's blog post ArduIMU+ V3 camera gimbal stabilizer on IndieGoGo
"Ah!!  That was the problem with the CLI, Thanks Greg"
Aug 14, 2012
DougB commented on Hai Tran's blog post ArduIMU+ V3 camera gimbal stabilizer on IndieGoGo
"I have the same problem with V3 board that I received yesterday. With Arduino Windows 1.0.1 CLI connects and I see the startup sequence but after that CLI will not respond. RX inputs have no effect. Roll servo is the only one that responds to…"
Aug 14, 2012
DougB commented on Hai Tran's blog post Bounty offered a ArduIMU+ V3 camera gimbal stabilizer
"Any real world tests yet?"
Aug 7, 2012

T3
Rory Paul commented on DougB's blog post One way to Restore a bricked xBee
"@Steve After today where I spent a good couple of hours messing with the Xbee's again I will look into the 3DR radios. Every time I have had trouble with the modems it has been when I wanted to change parameters. Today I was attempting…"
Jul 20, 2012
Steve commented on DougB's blog post One way to Restore a bricked xBee
"I have like 4-6 pairs of Xbees and over 70% of the units eventually stopped working properly. On some pairs i was able to perform the unbricking procedure but are stuck on a baud rate and can't be changed. I have long moved towards the Diy…"
Jul 20, 2012

T3
Rory Paul commented on DougB's blog post One way to Restore a bricked xBee
"@Doug Thank you! After much futzing I googed the problem and your posting came up...what a life saver I did not feel like spending another $70 at Sparkfun.."
Jul 20, 2012

Profile Information

About Me:
Scientist
Please tell us a bit about your UAV interest
AP
Hometown:
Denver, CO

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DougB's Blog

DiyDrones and Chris Anderson on CNN

Posted on March 16, 2012 at 8:30am 1 Comment

Quad Copter used on the TV show "The Cape"

Posted on February 11, 2011 at 10:19am 14 Comments

And of of course they had to put a gun on it.

 

 

"The Cape" with Quad 

 

Starts at about…

New Pandora's box of 'personal' drones

Posted on November 8, 2010 at 11:02am 3 Comments





They could put your mind at ease - or do very much the opposite.

A new arms race is on and it could change everything from the way we parent to how we get our celebrity gossip.

For the technology currently…

Continue

Laser Power Beaming Aimed At UAVs

Posted on May 12, 2010 at 10:00am 7 Comments

A company that won a NASA prize for beaming power to a climber in a space-elevator competition is targeting unmanned aircraft as an initial application for its laser-based technology.



LaserMotive says power beaming could extend the endurance of electrically powered UAVs. The company plans to fly a small internally funded demonstrator by year’s end.…







Continue

NASA Puffin Low Noise, Electric VTOL Personal Air Vehicle

Posted on January 22, 2010 at 12:00pm 2 Comments

Looks like you might get some neck strain holding your head up!


http://www.youtube.com/watch?v=rhpPhvWvLgk&feature=player_embedded

Comment Wall (8 comments)

At 9:04am on July 23, 2009,
Moderator
Sgt Ric
said…
Yes, I rec'd my 337 a couple months ago (sometimes hard to find the 81" one either at Nitro or Raidentech since they often go out of stock)

I hope to add a single brushless motor to the rear.

I have used two EasyStars as the run-up to this, but have run out of room on them for all the video, R/C, batteries, Ardupilot, etc., so the 337 is a huge improvement.

Even though the Nitomodels 337 has tons of room inside, I found I can put the entire RC receiver and the autopilot complete with pitot tube and XY and Z sensors IN THE WING!

The balance is terribly tail heavy so my 4 batteries are hung off the front firewall as is the video TX.

I have mounted a pan & tilt camera with a ball case off the firewall as well.
I have to replace the fibreglass front nose fairing to accomadate the nose cam.
It will look more like a UAV when that is finsihed.

I plan on having 2 more cameras in the fuselage; one digital camera facing down just in front of the main gear, and a digtal cam for oblique shots out the side oif the cabin. Maybe the same one, moving it for diff mission profiles (?)

I have not flown the Cessna 337, and worry that the Ardupilot settings will be very far off from the EZs. Its not so bad when they come down, they glue back together easily, but the 337 is not so sturdy.
I have "re-kitted" many large RC planes in my years in R/C, but I hope this model fairs better.

I have been following the build threads at rcuniverse for two years now and was prepared for having to reglue most of the joints on the Cessna and add the odd extra piece at stress points etc.
I was/am surprised that the quality is not as bad as I thought it may be... in fact its incredible for $ 195.00.
At 5:56pm on September 9, 2009,
Moderator
Sgt Ric
said…
Man, that is a coincidence...I am assembling it right now.

I want a single motor as well, but all my previous gas(nitro) models over the years had a lot of vibration, so I worry about having an AP onboard so I am opting for the Align 600XL in the rear.

I would like to replace the front fairing soon, but I found that the chin mounted ball cam will work with the existing fairing with a cutout and the front facing camera fits in the existing rairing as well.

I haven't done much work on my FPVs or the new Cessna337 lately since I am having eye trouble and going for surgery in a few weeks.
(actually my eyesight is the reason I got into FPV since I rekitted a couple models when I became disoriented during downwind turn...)
At 8:06pm on September 10, 2009,
Moderator
Sgt Ric
said…
Oops, wrong post...sorry.
At 12:46pm on September 11, 2009,
Moderator
Sgt Ric
said…
My ball cam is a Rangevideo KX191 stuffed into the glass ball from a Logitech Orbit webcam.

It is hung off the front mounted box which is an extension of the front engine mount box/firewall that I made for the batteries and video T/X.

If it works well in testing, I may not need the front static mounted cam; after all this is not meant for FPV.

Jordi sells a 2 channel video switch, but I plan on ordering a 4 channel one elsewhere. Perhaps that's unnecessary.
At 12:58pm on September 11, 2009,
Moderator
Sgt Ric
said…
I will post photos from the Cessna337 equipt install after my eye surgery and recoup.
At 2:30pm on September 22, 2009, James Turner said…
HI Doug, I have emailed you the code. I would have sent a compiled version as well but it's too big to email. I will upload a version to a website soon for anyone to download if they wish. Thanks, James
At 11:29am on May 12, 2010, automatik said…
Hi Doug,
Could you please edit your blog post "Laser Power Beaming Aimed At UAVs", so that only a paragraph or two is quoted rather then complete story?( to avoid potential copyright issues).
Thanks
-automatik
At 3:32pm on January 25, 2011, Paul Feely said…
Doug,
The props I used on the quad are the standard 10x45 props from fah pah http://store.fahpah.com/ProductDetails.asp?ProductCode=ac1045bl

They are on prop savers which I added as a safety feature - they will pop off if they hit anything (the ground or me!) rather than break regards Paul

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