About

Location

San Ramon, CA


About Me:

Head of blog rambling. The 1st 3 years of flying + more off topic posts are on http://www.rcgroups.com/forums/member.php?u=115141 Image processing, robotics, & aeronautics are on http://heroinewarrior.com Most diy droners are RC modelers who just want to automate their favorite model plane. I came from an image processing, software, & robotics background, not an RC modeling background, so my focus is on flight control, image acquisition, & blogs that no-one reads.


Please tell us a bit about your UAV interest

x


Hometown:

Pleasanton, Calif*


Activity Feed

Jack Crossfire posted a blog post
 Interesting review of the Skydio 2 & Mavic Air 2.  DJI has so many mavic's, the meaning of any of the product names has all become quite meaningless.  It might as well be the DJI X AE A-XII.As before, the Sky Diddyo isn't intended to be flown in an…
Jun 18
Jack Crossfire posted a blog post
A scooter ran a red light at 25mph & smashed straight into it. Miraculously, only the wheel was smashed. He broadsided it & dragged it a few feet, but manely took out the food it was carrying. Scooters & bikes are in the grey area of not having red…
Oct 22, 2019
Jack Crossfire commented on Echo G's blog post The Dumb-Battery Era is Over
"I2C sounds like mechanism envy, because everyone who programs a computer these days needs to have I2C on their resume.   Most of the smart batteries use a single wire interface."
Oct 7, 2019
Jack Crossfire commented on FusionFlight's blog post Introducing the JetQuad: Quad Jet-Engine VTOL Drone
"Microturbines have had a huge drop in prices in the last 10 years.  They used to be $5000 & only sold by Jetcat.  Now China sells them for $1500.  Surprising they have to be mounted horizontally.  That nozzle wastes a lot of energy.  We've all seen…"
Sep 2, 2019
Jack Crossfire commented on Jonatan Domenech's blog post 50th man on the moon ANNIVERSARY
"There was a time when working on home made drones felt like the next moon program.  We were making the future.  400 ft up was halfway to anywhere.  Now, they're banned just about anywhere.  Real moon programs now are a lot more expensive than hobbie…"
Jul 21, 2019
Jack Crossfire posted a blog post
They began with the Skydio, a quad copter which could follow subjects through forests with only machine vision.  Today, subject tracking cameras based on machine vision have reached consumers in standalone packages, the facebook portal, the OBSBOT.…
Jul 5, 2019
Jack Crossfire commented on Chris Anderson's blog post Just when you thought you'd seen it all: a big drone carrying a smaller drone carrying a hole digger
"Digging robots are real important, now that Mars is being opened up.  Just not easy to test for those of us where land is $50 million/acre."
Jan 11, 2019
Jack Crossfire posted a blog post
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…
Jan 7, 2019
Jack Crossfire commented on Chris Anderson's blog post Ion drive drone -- NO moving parts!
"Remember dreaming about ion powered airplanes as a kid. By the time we discovered lifters 20 years ago, years of physics classes had killed the magic.  The limit is the voltage at which air arcs.  They don't blast ions & electrons out the back like…"
Nov 23, 2018
Jack Crossfire commented on lyxlens's blog post Gopro hero 3 lens replacement
"Could have used that, 2 years ago."
Oct 21, 2018
Jack Crossfire posted a blog post
The speech: https://www.nasa.gov/press-release/mars-helicopter-to-fly-on-nasa-s... details on kiwipedia:https://en.wikipedia.org/wiki/NASA_Mars_Helicopter_ScoutAfter decades of rumors about such a thing, which no-one t…
May 12, 2018
Jack Crossfire commented on Chris Anderson's blog post Using LoRa radios for long-range RC
"About time something happened in the radio space, but if you need to know the bandwidth, you can't use it.  The general idea is longer range = lower bandwidth.  Still interesting to have a standard which allows consumers to push the physical limits…"
May 7, 2018
Jack Crossfire posted a blog post
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 released by anyone working on a full sized self driving car, while past generations were…
Mar 25, 2018
Jack Crossfire commented on hiroshi takey's blog post [COMMUNITY] - Today, Ardupilot banned to me from and my related Ardupilot project.
"It's nothing compared to the number of blog posts diydrones banned."
Mar 25, 2018
Jack Crossfire commented on Chris Anderson's blog post Indoor positioning with OpenMV cam
"Sort of funny to see an ESP8266 module with a bag of cables connected to it, just to say the autopilot is on the copter.  "
Mar 15, 2018
Jack Crossfire commented on Jack Crossfire's blog post Skydiddy startup
"Casey took a break from middle age to review it.  He obviously reads the Jack Crossfire blog."
Feb 27, 2018
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