Jack Crossfire's Blog (182)

Impressive multicopter wing hybrid

Finally, a novel wing rotor design which actually looks like it should fly.  It might only be the finished look instead of the usual carbon fiber rods & duct tape.  There's obviously still a torque problem on the wings, as it approaches higher speed.  It seems like a safer & more scaleable way of attaching many rotors than…

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Added by Jack Crossfire on January 7, 2019 at 2:20am — No Comments

The autonomous Mars copter

The speech:



https://www.nasa.gov/press-release/mars-helicopter-to-fly-on-nasa-s-next-red-planet-rover-mission

More details on kiwipedia:…

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Added by Jack Crossfire on May 12, 2018 at 3:30pm — No Comments

The 1st fatality caused by a self driving car

There has never been a fad held in as much secrecy as the self driving car craze. It's been 15 years of startups, yet no source code or algorithm has ever been…

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Added by Jack Crossfire on March 25, 2018 at 3:00pm — 4 Comments

Skydiddy startup

Really impressive demos from Skydio in Redwood City. Quad copter startups have been hit or miss & it looks like the same pile of plastic scrap that every startup besides Apple produces, but what they showed here was exactly what I wanted to do for years, with ground vehicles. It looks like it could really navigate…

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Added by Jack Crossfire on February 20, 2018 at 3:54pm — 5 Comments

Make a software programmable fuse out of a 3DR BEC

Most power supplies these days have overcurrent protection, but for those of us too poor for anything besides a Mastech & who were left with an ancient, unused 3DR BEC after the world migrated…
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Added by Jack Crossfire on March 2, 2017 at 9:17pm — No Comments

Evolution of the RC car exercise coach

It's been a long journey from the G-Buggy

to the failed balancer…

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Added by Jack Crossfire on April 30, 2016 at 6:58pm — 7 Comments

An entire neighborhood XMas lightshow from a quad

Holy subprime seasons.  While it was always possible for an entire neighborhood to synchronize its lights, it wasn't possible to actually see it until last year.  It's really a sight that cost a fortune until the rise of the quad, higher sensitivity cameras, & then the brushless gimbal.  Of course, flying a quad that high above a neighborhood is a very nerve…

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Added by Jack Crossfire on December 9, 2014 at 8:39pm — 5 Comments

Analysis of the follow cam problem

MikroKopter - FollowMe on the Wakeboard from Holger Buss on Vimeo.

The follow me concept using GPS is nothing new. It was demonstrated in 2008 at long range, with the normal lens cameras of the time.



Now, they're doing it at slightly closer ranges,…

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Added by Jack Crossfire on August 4, 2014 at 1:00pm — 12 Comments

The big 3 without editing



With so many unemployed programmers, it was only a matter of time before someone would try to free the bits & upload some videos. We'll see how long this lasts until the indy movie studios crush the rebellion. These videos covered what currently are the 3 mane copters, in a rare appearance without any editing.



Collinn was a lot more down to Earth than…

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Added by Jack Crossfire on July 22, 2014 at 6:38pm — 8 Comments

Brushless direct drive rover







The journey began when the G-buggy which served for 6 months was stepped on, bending a shaft & putting it out of duty.  It was otherwise falling apart on its own, after pacing 110 miles of running.…





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Added by Jack Crossfire on July 11, 2014 at 11:25pm — 7 Comments

Adventures with an RC car exercise coach



The RC car came along on Jan 8, 2014.  The…
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Added by Jack Crossfire on April 26, 2014 at 9:28pm — 1 Comment

Lipo teardown

Tore down a completely puffed, dead, 0V cell.  It was still air tight.…
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Added by Jack Crossfire on April 18, 2014 at 1:51pm — 9 Comments

Robot show



It was packed with unemployed, flat broke programmers.  As far as jobs, there was 1 engineering job at NASA which required many more years of college & had a line of guys wanting to get in.  There is far more talent than demand.  Stock & buyout…

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Added by Jack Crossfire on April 9, 2014 at 8:29pm — 1 Comment

Syma X3 as a robotic platform



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Added by Jack Crossfire on April 6, 2014 at 4:50pm — 3 Comments

Facebook buys Occulus VR for $2 billion



Not quite the $15 billion they spent on Whatsapp last month, but still more than the $1.1 billion they spent on Instagram.  The speculation is for grand universes of virtual reality news feeds, virtual reality sharing of private UAV flights, but…

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Added by Jack Crossfire on March 25, 2014 at 5:12pm — 13 Comments

XV-11 lidar copter









The journey begins with 3 XV-11 lidar…

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Added by Jack Crossfire on March 13, 2014 at 10:00pm — 10 Comments

Google's indoor flying space





http://www.businessinsider.com/what-next-taking-google-blimps-to-work-2014-2



For better or worse, we got ourselves a dot com…

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Added by Jack Crossfire on February 19, 2014 at 11:05pm — 6 Comments

Drone fly-in







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Added by Jack Crossfire on January 20, 2014 at 6:59pm — 13 Comments

Laser range finder teardown

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Added by Jack Crossfire on January 6, 2014 at 1:25am — 12 Comments

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Season Two of the Trust Time Trial (T3) Contest 
A list of all T3 contests is here. The current round, the Vertical Horizontal one, is here

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