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Chris Anderson's Discussions

Feedback on new manuals

Started this discussion. Last reply by Gustav Kuhn Apr 14, 2013. 130 Replies

Submit your ArduCopter configuration files here

Started this discussion. Last reply by Finnius Mar 29, 2014. 41 Replies

ArduCopter 2.3 released

Started this discussion. Last reply by JeffBetts_KK4MTC May 21, 2012. 1073 Replies

 

Chris Anderson's Page

Profile Information

About Me:
I'm CEO of 3D Robotics and founder of DIY Drones. I'm the former Editor in Chief of Wired Magazine, author of The Long Tail (Hyperion, 2006), FREE (Hyperion, 2009) and Makers (Crown, 2012) and founder of GeekDad.com

You can find more about me at my About.me page here: http://about.me/andersonchris
Please tell us a bit about your UAV interest
Fixed wing and quads. Mostly for fun and development. With kids as often as they allow!
Hometown:
Berkeley, California

Latest Activity

Rob_Lefebvre commented on Chris Anderson's blog post PX4-based "aggressive quadcopter" navigates gaps with pure autonomy
"Well, that's what I'm wondering. If the wobble is simply due to the un-optimized control loops in PX4.  They have not yet done throttle and voltage linearization, so this leads to the used-to-be-classic overgain-wobble when trying to…"
yesterday
Andrew Rabbitt commented on Chris Anderson's blog post PX4-based "aggressive quadcopter" navigates gaps with pure autonomy
"...because they are pushing a linear control system to the edge of its stability window to achieve the required agility...?"
yesterday
Rob_Lefebvre commented on Chris Anderson's blog post PX4-based "aggressive quadcopter" navigates gaps with pure autonomy
"Cool stuff.  I like seeing this stuff done on-board as the off-board stuff has limited utility.   So are the code developments from this work being merged into PX4 Master?Why is the recovery after passing through the gap so wobbly?"
Thursday

3D Robotics
Chris Anderson posted a blog post

PX4-based "aggressive quadcopter" navigates gaps with pure autonomy

From IEEE Spectrum:Just a few weeks ago, we posted about some incredible research from Vijay Kumar’s lab at the University of Pennsylvania getting quadrotors to zip through narrow gaps using only onboard localization. This is a…See More
Thursday
Global Innovator commented on Chris Anderson's blog post Training autonomous cars with Grand Theft Auto
"My contribution to IT science is my 40+ years ago developed single-pass sorting algorithm for large sets of natural numbers,  run Bs times every hour globewide. BTW Autonomous cars should not to allowed to populate public roads since there is…"
Wednesday
Global Innovator commented on Chris Anderson's blog post Demo of Pozyx non-GPS (ultrawideband) positioning system
"from https://www.kickstarter.com/projects/pozyx/pozyx-accurate-indoor-positioning-for-arduino/description What is the update rate? At the moment the maximum update rate for the position is between 5Hz and 10Hz for a single tag, depending on the…"
Wednesday
David commented on Chris Anderson's blog post RTK GPS with ArduCopter 3.4
"Hello  all,  I am trying to integrate an Ellipse D Dual GPS RTK unit with Pixhawk. I've reviewed this thread and documentation for the Septentrio AsterRX-m, Terruss Prec 305 board, and Pixhawk. And haven't been able to answer…"
Wednesday
Nikola Rabchevsky commented on Chris Anderson's blog post From Hackaday: A history of drones
""Science historian James Burke had a TV wonderful show in the early 90s"Uh, not quite.  The original aired in the 70s and is much more informative than the later series."
Wednesday
Gary McCray commented on Chris Anderson's blog post From Hackaday: A history of drones
"Droning on and on about drones! Has a lot of historically interesting stuff on unmanned aircraft. My take: The original common use of drone was for unmanned target aircraft and the drone reference was to their unchanging buzzing noise sounding like…"
Tuesday
Joe Renteria commented on Chris Anderson's blog post From Hackaday: A history of drones
"Reading this at the wrong 7-11, I am at the one just off of the 101 on Sunset Boulevard..."
Tuesday

3D Robotics
Chris Anderson posted blog posts
Tuesday
Rob_Lefebvre commented on Chris Anderson's blog post Inexpensive laser time-of-flight sensor with 2m range
":("
Sep 24

3D Robotics
Chris Anderson commented on Chris Anderson's blog post Inexpensive laser time-of-flight sensor with 2m range
"I've now tested this outside in bright sunlight. Totally useless -- range is like 10cm. Use it indoors only"
Sep 24
Rob_Lefebvre commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"Oh, I forgot a question.  The rotor blades, are they totally custom made?  Or are you doing something like taking tmotor blades and putting them in a helicopter rotor head?"
Sep 24
Rob_Lefebvre commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"Ok, so I crunched a few numbers.  Based on 1m rotor span, 4kg AUW, 24V (I typically use 4V/cell unless better data is available), 20A hover. And 2x 4500mAH. Disk Area: 0.785m2 Disk Loading: 5.09kg/m2 Hover Power: 480W Specific Hover Power:…"
Sep 24
Kevin commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"@JB, so you say 4.8A at 40 knots with 2.6KG AUW, that is extraordinary. What kind of forward motor are you using? To answer your vibration question, that is remarkably not a problem at all. We used to do tests with a Logo600 before, and indeed…"
Sep 23
JB commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"Sorry Rob I think comparing it to our quadplane system numbers here is confusing things. (bad forum etiquette I know ;-) ) Kevin said the Delftacopter uses only 20A at 6S for 4kg AUW, but our PerthUAV quadplane uses around 40A on 4S @ 2.7kg. "
Sep 23
Kevin commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"@Ikaros, thanks! We indeed have had GPS problems, so we have two of those and switch based on satellite coverage and pitch angle. The 900MHz back up datalink link has two antenna's. (one for hover, one for fwd). The Iridium antenna is…"
Sep 23
Rob_Lefebvre commented on Chris Anderson's blog post Delft VTOL project uses helicopter-style main rotor for effeciency
"Very interesting system here Kevin.  I'd like to have a look at some of the numbers. What is the rotor diameter?So you're saying 40A to hover, at 24V or 48V?  It's not clear from the way it's worded."
Sep 23
Nikola Rabchevsky commented on Chris Anderson's blog post Demo of Pozyx non-GPS (ultrawideband) positioning system
"There seems to be a significant latency with this."
Sep 23

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Chris Anderson's Blog

PX4-based "aggressive quadcopter" navigates gaps with pure autonomy

Posted on September 28, 2016 at 10:00pm 4 Comments

From IEEE Spectrum:

Just a few weeks ago, we posted about some incredible research from Vijay Kumar’s lab at the University of Pennsylvania …

Continue

From Hackaday: A history of drones

Posted on September 26, 2016 at 9:00pm 3 Comments

Out of respect for a great job, a verbatim history on drones from Hackaday:

In the early 1930s, Reginald Denny, an English actor living in Los Angeles, stumbled upon a young boy flying a rubber band-powered airplane. After attempting to help the boy by adjusting the rubber and control surfaces, the plane spun into the ground. Denny promised he…

Continue

Space Invaders with drones

Posted on September 25, 2016 at 10:29pm 0 Comments

The seat-on-rails alone looks super fun…

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Demo of Pozyx non-GPS (ultrawideband) positioning system

Posted on September 22, 2016 at 8:30pm 3 Comments

I was one of the backers of the Pozyx ultrawideband positioning system Kickstarter campaign, and after a pretty bumpy start (although they shipped the product, the…

Continue

Lego kit makes DIY drones easier for kids

Posted on September 22, 2016 at 1:02pm 2 Comments

What's interesting about the new Flybrix kit ($149) is that it has an original Arduino-based flight controller. Pretty hard core code (Kalman filters and such) so that might be a little gnarly for younger kids, but…

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Comment Wall (117 comments)

At 5:58pm on July 11, 2007, Jeffrey Johnson said…
Great talking to you today. We are on it with using your designs here, and look forward to dovetailing our efforts. Power to the PictEarth People!
At 10:13pm on January 2, 2008, Dhrumil said…
Thanks for setting this up.
At 12:12am on February 8, 2008, Mark L said…
Hey Chris,

I just read your post on UAVs and I'm wondering if there's anywhere that one could purchase a pre-made UAV...couldn't find one on ebay.
I run a network of websites, www.ballerhouse.com, and am considering featuring a UAV article. Can you point me in the direction of where someone could purchase one? If so, what other info should my readers know?
Thanks!
Mark L
markl@ballerhouse.com
At 12:17am on February 8, 2008,
3D Robotics
Chris Anderson
said…
The cheapest commercial one is around $7,000 (cropcam.com). The cheapest *good* one is around $10,000 (http://www.procerusuav.com/). That's why we started this site, to bring the price down below $1,000.

We're *DIY* Drones--buying one premade isn't the point ;-)
At 6:41pm on February 28, 2008,
T3
William Premerlani
said…
Chris,
If you want to do a Q&A with me, that would be fine.

The reason for the board is that my son and I thought it would be fun to build our own board, develop theory, and write firmware. We were inspired by Maynard Hill, who came to town and gave a talk.
We got our feet wet with a rapid-prototyping board mounted on an RC truck, and then build our own board for a sailplane. We bought our parts from SparkFun. Nathan Seidle, the ownder of Sparkfun, asked me what we were doing, I told him, he offered to build a surface mount board for me.
My son and I spent a few delightful summers getting the firmware working. At the time, our goal was to play, to just do some interesting things with it, without any goal in mind. When we were done, we had something that worked to our satisfaction, Nathan asked if he could sell it, we gave him permission.
We recognized that what we had was not a full-fletched autopilot, but that it might be interesting to anyone wanting to tinker with the controller. They could build on our firmware, if they wanted, or start from stratch, if they were ambitious.
By the way, the main reason we used assembly language was that my son had never written any, and he wanted to learn. He had used lots of other languages, but not assembly.
As far as what people are doing with my board, you probably have more information than I have!! The only person I've talked to so far is a member of diydrones. All I know is that the board is selling well at SparkFun, with no complaints.
By the way, the reason the board has been backordered for so long is that the vendor of the GPS replaced their ET301 with an ET312 at the same time that SparkFun was automating their board production, resulting in some defective boards. Even after we worked out the hardware problems, there was a subtle change in the ET312 that caused some problems. Every board that SparkFun builds is tested with the full firmware running, and the boards were not passing. We finally figured out what was wrong, production is resumed, I guess they are catching up on backorders.
All of the work my son and I was deliberately done in a vacuum...we didn't do any research on what other people were doing. We made some mistakes (that was the point) and had some fun.
My background is an electrical engineer with strengths in control theory, mathematics, and theory of flight.
I work at GE's research labs, I've been there for 33 years.
You might want to do a Google on "William Premerlani" to see what I have been up to. Much of it has to do with software development...you gave me a good chuckle when you said in your review that you wondered why we hadn't used C...the answer is, it would have been too easy!!!
Bill
At 10:52pm on March 22, 2008, Elisa said…
any time if u like to have a wet dip & country village food, come over try our our boats,(planty of spcae for plane flys
elisa
At 6:02pm on March 26, 2008, T-Rex said…
I heard you on Talk of the Nation today...great job! I did not get to hear the whole show, but definately heard the part about your "robotics" site and 3-axis accelerometers. You, my friend, rock!

By the way, thanks for the advice about starting out in R/C with a foamie...else I would not have made it past my first flight attempts.
At 6:27pm on March 26, 2008,
3D Robotics
Chris Anderson
said…
Thanks! I wanted to say "3-axis MEMS accelerometer" but I held back for the sake of the NPR audience ;-)
At 10:44pm on April 4, 2008, Simon Pan said…
Hey Chris,

I won honorable mention, best in category, best in engineering, 550$, and an internship offer, at the state science & engineering fair. (The winners were a guy who did computer simulations of bird flu epidemics to determine the best method to distribute a limited supply of antivirals, a girl who developed an advanced, complex robotic vision algorithm which could detect blobs in foggy areas and high altitude ranges, and a guy who figured out a method to stem the growth of certain forms of cancer, so it was a humbling experience).

I just wanted to thank you for making this website and for your great documention and projects, because without them I'd probably still be trying to figure out how to connect the GPS receiver to the Stamp.

Thanks!

- Simon
At 8:26am on May 10, 2008, Huckleberry said…
Thanks Chris,

Been following along for some time (geekdad) and just bought a Blubberbot for something to do over the summer holidays... thinking about the project possibilities for my kids in electronics 11/12 ... hmmm blimp racing? Anyway, great to be here.

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