March 2010 Blog Posts (118)


3D Robotics
T3--Round 6: The Simulation Round!

For the last T3 round before the weather improves (in the Northern Hemisphere), we're going to do something indoors! It's a simulation round, which I previewed here.…

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Added by Chris Anderson on March 31, 2010 at 11:58pm — 37 Comments


Developer
Improved Heading Controller

http://www.youtube.com/watch?v=cipTQAUM-v4

Note** these are 100meter orbits with really strong winds to provide a…

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Added by Ryan Beall on March 31, 2010 at 11:35pm — 7 Comments

Ardupilot goes into the water Part 2

You asked for it.
Here is the part 2 of my experiences...
(still fiddling with the Rich text formating on this page)


The first steps:…

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Added by Harald Molle on March 31, 2010 at 9:00am — 9 Comments

OpenLog Resetting Issues

I think I've debugged one of the issues I was having with my OpenLog connecting to Ardupilot. This will probably be blatantly obvious to you veteran Arduino Programmers, but it got me, so I figured I'd post in case it helps anyone else.

After a few flights with only the open log and the ArduIMU, I decided to integrate the ArduPilot board and move the logger to the Ardupilot board. My ArduIMU was now talking to the…

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Added by Tom Hastie on March 31, 2010 at 8:30am — No Comments


3D Robotics
Should we move ArduPilot Groundstation from LabVIEW to Nokia's Qt?

As we prepare to migrate our current LabVIEW groundstation from ArduPilot to supporting ArduPilot Mega, we're taking the opportunity to rethink its architecture and code base.…



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Added by Chris Anderson on March 30, 2010 at 3:00pm — 57 Comments

University of Maryland's Ulrich flyer

Mono-wing, variable pitch, rotating camera platform inspired by the maple seed. This looks like it could be a interesting project to attempt.







http://www.eng.umd.edu/media/pressreleases/pr101909_mapleseed.html





Flight Test Video:…

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Added by Roy Clendaniel on March 30, 2010 at 12:54pm — 2 Comments

Ardupilot goes into the water Part 1

Hello everybody,


this is my first blogpost on this site.


In the following i will describe my experience, my ups and downs while
developing an ArduPilot based depth surveying system for lakes.

I know, this site is primarily for flying platforms. Please leave a comment, if you think that this is not the right place. Maybye, some of my findings are also interesting for flying platforms.…





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Added by Harald Molle on March 30, 2010 at 12:00pm — 15 Comments

Sentinel V2

Here is the successor of my previous wing. Basically the same as the old design with a new ABS molded center pod. It will be flying with the UAV devboard and now that the snow is finally melting in my field and I have the newest version of matrix pilot loaded, I will be doing some walk around tests tonight. I will have to work with the gain values but so far everything looks to be functioning correctly.


More information can be found on my build…
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Added by Curt Filipowski on March 30, 2010 at 7:31am — 8 Comments

UAVDevBoard Pete Holland's camera stabilization/tracking firmware

Great Pete Holland's camera stabilization/tracking firmware



Arcus IMU with camera stabilization firmware test #10 from Riccardo Kuebler on Vimeo.





Hi all,



I made several flights with Pete's great camera stabilization/tracking firmware. Those video are not of high quality

and only of… Continue

Added by Riccardo Kuebler on March 30, 2010 at 2:30am — 14 Comments

Ardupilot based 4 channel servo subsystem.



I've mention this project a couple times and finally, here it is.



What: This is an ardupilot…

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Added by Curt Olson on March 29, 2010 at 6:14pm — 12 Comments

Superman, Marilyn and Robot Planes

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Added by Jerry W. Saveriano on March 29, 2010 at 10:06am — No Comments


3D Robotics
Update on the DIY Drones dev teams

Those of you who tuned into the podcast this week heard that we're in high gear here at DIY Drones getting ready to release the next generation of ArduPilot, ArduPilot Mega. As always, this is a community effort--the product of dozens of people working for more than a year. So this is an opportunity to call out some of the heroes of the project and a way for people to figure out how they might contribute:…

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Added by Chris Anderson on March 28, 2010 at 11:00pm — 14 Comments


3D Robotics
DIY Drones live chat/podcast tonight with EasyUAV's Krzysztof Bosak at 9:00pm PST

Free video streaming by Ustream



Tonight (Sunday) we'll do our regular podcast, which everyone here is welcome to participate in by listening to the chat live above and commenting and asking questions via the DIY Drones… Continue

Added by Chris Anderson on March 28, 2010 at 2:55pm — 4 Comments

Great explanation of PID loops in layman's terms

I ran across this if anyone is having trouble grasping the concept of PID loops. Great, simple explanation:

http://www.pc-control.co.uk/feedback_control.htm

Rim

Added by rimb05 on March 27, 2010 at 11:13am — 4 Comments


3D Robotics
Proposed next T3 round: simulations



Gary Mortimer and I are leaning towards a simulation round for the next T3 contest, but I need some feedback about what would work best.



There are two kinds of simulations: "open loop" and "closed loop".



Open…

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Added by Chris Anderson on March 26, 2010 at 10:00pm — 32 Comments

THIS WEEK IN AEROSPACE

THE WAR ON ALUMINUM, MARCY 2 IDEAS



AIRFRAME OPTIMIZATION HELL



Mainly, going from something that flies to something worthless hoping to someday get something more efficient flying again. The fact is Marcy 1 didn't have enough lift to do what She needed to do.







Got a wing from a discontinued glider… Continue

Added by Jack Crossfire on March 26, 2010 at 11:30am — 11 Comments

ScanEagle Video





I came across ScanEagle video on EngineeringTV that showed ffew things that I din't know about it - each wing is attached to fuselage by one pin, motor mount is very flexible ( for vibration isolation) - there is a good shot of it towards the end of the video. Video has two parts and there is comerciall in the middle ( i.e. don't close the video when commerical starts ( ~ 2 min into the… Continue

Added by automatik on March 25, 2010 at 4:46pm — 9 Comments

Inverted V-tail advantages?

Did some googling on military UAVs and it came up with this nice site, listing 30 UAVs currently in use and for future deployment.





http://www.popsci.com/technology/gallery/2010-02/gallery-future-drones



I found the inverted v-tails on some of them interesting, can anyone enlighten me on the advantages they present compared to normal v-tails or… Continue

Added by Irfan Mohamed on March 25, 2010 at 1:38pm — 13 Comments

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