"Unless the main batteries are physically disconnected you're looking down the barrel of a loaded gun, no matter how many parameters, switches, failsafes etc.are set this way or that. The problem with most every multicopter is that in order to…"
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Oliver
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Oliver's Discussions
First they came for your drone, then they came for your broom...
Started May 14 0 Replies 0 Likes
As some of you know I've posted a few satirical pieces here, but there's no way even my twisted brain could have come up with this:Witches flying broomsticks in Swaziland above 150 metres will be…Continue
Unbaffled Barometer = Attempted Flyaway
Started this discussion. Last reply by Oliver Mar 24. 11 Replies 0 Likes
Had a near flyaway followed immediately by a near lawn-dart maneuver by my Flamewheel 550 this weekend, apparently due to running an APM 2.5 board "bare" (without case or foam baffling the…Continue
Setting RTL Flight Speed?
Started this discussion. Last reply by Fred Flores May 1. 2 Replies 0 Likes
Flying a hex w. APM 2.5/ublox, FW 2.9.1, MP 1.2.35: I want to turn down the flight speed when RTL is invoked. I thought there was a specific parameter for that earlier but now I can't find it in any…Continue
APM 2.5 Firmware Upload Verify Fail
Started this discussion. Last reply by Oliver Mar 6. 25 Replies 0 Likes
Just upgraded my Flamewheel 550 Hex from the APM 2.0 board to APM 2.5 (plus the ublox GPS) (all directly from 3DR). On firmware installation, at the end of the "verify" phase, there's an error…Continue
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Oliver replied to Scott's discussion Yawless Noob"Come to think of it, since you are able to arm and I assume disarm the APM that must mean the rudder (yaw) command is getting to the APM... I think my next move would be to do an "erase" on the APM and reinstall the firmware from scratch,…"
Oliver replied to Scott's discussion Yawless Noob"I would start by confirming correct calibration of the DX7 via Mission Planner, paying particular attention to the yaw (rudder). You should see the bar moving appropriately and see sensible numbers. If it looks fishy there, check that the…"
Oliver posted a discussionFirst they came for your drone, then they came for your broom...
As some of you know I've posted a few satirical pieces here, but there's no way even my twisted brain could have come up with this:Witches flying broomsticks in Swaziland above 150 metres will be subject to arrest and a hefty fine of R500 000, civil aviation authorities said, according to a report. Witches’ broomsticks are considered similar to any heavier-than-air transportation device that is airborne, says The Star. “A witch on a broomstick should not fly above the [150-metre] limit,” Civil…See More
Hugues commented on Oliver's blog post A Simple Direct Drive Multicopter Camera Gimbal"I think it shall not be solved on the APM current hardware because the frequency rate of 50 Hz to update servos position is already at its max (limited processing power). Maybe on the future PX4 board shall it be better ?"
Emil Kårlin commented on Oliver's blog post A Simple Direct Drive Multicopter Camera Gimbal"I see you hawe the same problem as me with thitching on servos.
I don't know if its the fault of servos hawing a little bit of play in the gearing or the APM code bei8ng faulty producing random twitching in the tilt accsis. Is there annoyone…"
Fred Flores replied to Oliver's discussion Setting RTL Flight Speed?"Yes I changed the WP_SPEED_MAX to 250 and LAND SPEED to 40 and now it comes back slower and doesn't scare me when it flies back to home."
Oliver replied to Dave Wilkeson's discussion Need help with gimbal servos"I had a similar problem a while back which was resolved via some settings in the advanced parameter list. There was a sort of disconnect between the MP gimbal page settings and the actual parameters. I'm no longer totally clear on the details…"
Oliver replied to Clinton Mills's discussion Flight Planning, Gone Horribly Wrong"Well, that sure doesn't look right and it's flying like a wounded duck. My hunch is that regardless of GPS status etc. there was a mechanical fault at work here. "
Oliver replied to Clinton Mills's discussion Flight Planning, Gone Horribly Wrong"What's up with all the jerky motion of the right front motor arm, as compared to the left one, visible in the video? It looks like it's maybe loose, or maybe that motor is having some sort of problem? "
Oliver commented on Garrick Merrill's blog post NASA using ArduCopter"Wow!!! What a great video! So, when can we pre-order one of those nifty rockety-lander-thingys from Hobby King or Horizon? (grin). Seriously, it's awesome to see NASA using something that many of us have built and/or own ... thanks so much for…"
Oliver replied to Scott Berfield's discussion Dumb battery question"Your motors will run approx. 33% faster at full throttle which in itself shouldn't harm them unless maybe if they are really cheapos, and even then you probably won't be running a quad at full throttle anyway. Your throttle stick will be…"
Oliver replied to Al's discussion Getting Rid of the Jello Effect"My knowledge of harmonic resonances is mostly subjective mainly from dealing with bagpipes, my profession (all sorts of desirable and some undesirable things happen when multiple reeds are running in proximity to one another). But again, I think the…"
Oliver replied to Al's discussion Getting Rid of the Jello Effect"What's interesting in your videos is the sound of your Hex. I also fly a hex (DJI Flamewheel w. T-motors & balanced Graupner carbon-filled props). In your vids I'm repeatedly hearing low harmonic beating/pulsing, which may…"
Oliver commented on Stephen Gienow's blog post Watch Out! Udrones ARFs need threadlock."It was mentioned (once) above, correctly, that all metal-to-metal threads should be threadlocked. But not mentioned is that non-metallic joints should NOT be threadlocked. The threadlock compond may attack and degrade a non-metallic material,…"
Oliver commented on Gary Mortimer's blog post Google chief urges action to regulate mini-drones"Isn't Eric Schmidt the same (now uncloseted) Luddite clown who went nattering about in North Korea earlier this year, against the wishes of the US State Department? So he thinks only governments should have drones, but it's OK for him to…"
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- Tell us a bit about your UAV interest
- Transitioning from conventional helis to multirotors for hobby photography. Also scale/sport flying.
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Oliver's Blog
News From The North: Oregon's Imaging Ban
Posted on April 1, 2013 at 12:02am 10 Comments 3 Likes
Senior Oregon Drone Prevention Agent Griswald Krockoberry mans the 1.2 million dollar Pyongyang-made "Iron Wonder Blossom" Drone Detector near the border of California.
January 1, 2013: The sovereign state of Oregon enacts legislation making…
Continue A Simple Direct Drive Multicopter Camera Gimbal
Posted on March 19, 2013 at 1:00am 12 Comments 5 Likes
Here's a short hi-def video of a tilt/roll camera gimbal that's quick and easy to build, using parts from a nifty line of unique CNC'd aluminum hardware developed and marketed by Servo City (servocity.com) of Kansas and used mostly, it seems, for terrestrial robotics. (I hasten to add that I don't work for them etc., just want to pass on what I think is some…
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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
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