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Rob_Lefebvre
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  • Ontario
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Rob_Lefebvre's Groups

Rob_Lefebvre's Discussions

For Sale: Like new Canon SX260

Started Apr 19 0 Replies

Bought an SX260 a while ago for mapping, but never ended up using it beyond a couple quick test flights.  Like new condition. Complete with box, etc.  These are sought after because of CHDK and NDVI…Continue

AC3.4 Discussion

Started this discussion. Last reply by David Boulanger Apr 28. 6 Replies

Hello,I just wanted to start a post discussing AC3.4.  People should be aware that I'm not reviewing the code in Master or doing test flights at this time.  Recently, a large set of changes went into…Continue

Notification: My Community Support Ending

Started this discussion. Last reply by Mark Lewus Feb 14. 89 Replies

Hello everyone, I feel the time has come to make an announcement, which I've been avoiding for a few weeks now, but which I can't put off anymore.As some people are aware (and some maybe not) for a…Continue

AC3.3 Vibration Logging Discussion Thread

Started this discussion. Last reply by Forrest Frantz May 20. 58 Replies

Start this thread to have a place for focused discussion of the new vibration logging function of AC3.3.  I'll start by copy-pasting my initial discussion from the AC3.3 beta testing thread.Continue

 

Rob_Lefebvre's Page

Latest Activity


Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"OG, so you're saying I should go down to Best Buy, get a P4, rig it so that a prop flies off, and then after it crashes, return it to the store and complain it's not capable of something that DJI never said it could do?"
21 hours ago

Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"OG, I never said it wasn't possible to fly a quad with a prop loss.  What I did say, is that the P4 can't do it, and nobody has shown it outside of laboratory conditions.  re: Bill's video  That is a tiny quadcopter…"
23 hours ago

Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"OG, can you please show me any DJI quadcopter (not hex) flying with a prop loss?  Actually, I am impressed just by that hexacopter demo, that it can handle spinning that fast.  That's half the battle. But still, with a quadcopter you…"
23 hours ago

Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"OG, you are making things up as you go.The A3 cannot make a quadcopter fly with a missing problem.  The problem is very severe on a quadcopter, much moreso than hex or octo.   Yes, it has been done in "laboratory" settings, but…"
yesterday

Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"OG, you are confusing the M600 hexacopter's ability to fly without a prop, for the Phantom.  The Phantom will drop like a stone.  A rapidly spinning stone."
yesterday

Developer
Rob_Lefebvre commented on Jason Wise's blog post Quanum V52 Ground Control System - HobbyKing
"I saw that yesterday, and it's interesting. Not sure how they're controlling yaw though.  Having to connect a set of rudder pedals would be really annoying.  I'm betting that joystick is a 3-axis with a twist for yaw.…"
Thursday

Developer
Rob_Lefebvre commented on AKRCGUY's blog post Is our Hobby Doomed?
"Really great rant!  They nailed it!"
Thursday

Developer
Rob_Lefebvre commented on Chris's blog post Queen B Robotics introduces the Exo360! 5 integrated 4K cameras for the ultimate VR experience
"Gary, could a TX1 actually accomplish really high quality 5-camera HD video stabilization and stitching?And then, besides the question of electronics, we get back to the reality of glass.  It's all about the glass."
Thursday

Developer
Rob_Lefebvre commented on Chris's blog post Queen B Robotics introduces the Exo360! 5 integrated 4K cameras for the ultimate VR experience
"Oh, interesting.  This hockey clip looks quite different as well. "
Wednesday

Developer
Rob_Lefebvre commented on Chris's blog post Queen B Robotics introduces the Exo360! 5 integrated 4K cameras for the ultimate VR experience
"Interesting looking system.Are those aerial images shown in the video clip coming from the actual device?"
Wednesday

Developer
Rob_Lefebvre commented on Vadzim Chareuka's blog post Gasoline helicopter 5hrs flying time (1.5kg payloads)
"Nice looking machines. On your older helicopter, are you saying that it was 20kg AUW (44lbs) running on 850mm blades (1900mm rotor diameter) on a 30cc Zenoah?  That are some incredible numbers."
May 21
Vadzim Chareuka commented on Rob_Lefebvre's blog post Procyon Helicopter Demonstrates 1 Hour Flight with 1KG Payload
"Good job. I have been almost the same only with a commercial interest. I created a gasoline helicopter capable of flying 8:00 flight time. I am confident that you will be able to pull about 2 hours flying time from your helicopter, if you use the…"
May 21

Developer
Rob_Lefebvre commented on Darrell Burkey's blog post Serious Fun
"Yeah, looking pretty good. Just curious about the image with the backplate off the motor and looks like engine damage.  Guess it was taken March 28th however."
May 20

MR60
Forrest Frantz replied to Rob_Lefebvre's discussion AC3.3 Vibration Logging Discussion Thread
"Rob -  I noticed a new VIBE record (OK ... I'm a bit slow).  While not a true standard deviation, these VIBE values take a clever and different look at the raw data from the accelerometers (making it relative to a base and passing…"
May 20

Developer
Rob_Lefebvre commented on Darrell Burkey's blog post Serious Fun
"Looks like fun, wish more people were near me. Did you guys have a problem with the GX9 engine? "
May 20

T3
Thorsten replied to Rob_Lefebvre's discussion AC3.3 Vibration Logging Discussion Thread
"Sure, but this is a different and additional kind of vibration. "
May 19

Profile Information

About Me:
Mechanical Engineer
Arducopter TradHeli Lead Developer
Please tell us a bit about your UAV interest
Aerial Photography
Light Industrial Applications
Traditional Helicopters
Hometown:
Brighton Ontario Canada

Rob_Lefebvre's Photos

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Rob_Lefebvre's Blog

Procyon Helicopter Demonstrates 1 Hour Flight with 1KG Payload

Posted on April 19, 2016 at 8:00pm 18 Comments

Autonomous Systems Cooperative is pleased to present a new helicopter design which has been engineered from the ground up for UAV usage. Today, on just its 3rd test flight, the Procyon 800 Electric helicopter design demonstrated capability of…

Continue

Announcing Formation of Autonomous Systems Cooperative

Posted on April 7, 2016 at 2:00pm 20 Comments

Today I am pleased to announce the formation of a new commercial support company which I have founded in combination with Bill Bonney (creator of …

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NOVAerial Robotics Ground Control Station

Posted on March 24, 2016 at 7:36pm 34 Comments

Wanted to present my mobile ground control station as an example of the type of system that professional UAV operators will probably be using in the future.  I converted this cargo trailer into a mobile office to support my flight testing activities on large systems, in a country where the weather isn't…

Continue

Long-Line Sensor Payload Demonstration

Posted on March 19, 2016 at 6:00pm 12 Comments



Today I did something a little bit unusual, and definitely more difficult than flying around with a camera. A possible commercial customer asked to see a demonstration of a helicopter flying with a 2.5kg sensor.  This sort of thing is commonly done for magnetometer surveys for mining…

Continue

Comment Wall (14 comments)

At 5:59pm on November 30, 2011,
Developer
Jason Short
said…

Chris is the Admin. He can help you.

Jason

At 8:22pm on May 16, 2012, Carl La France said…

Robert thanks for your input the 1/8 aluminum on  on the fuselage will be a milled out channel running  half way down the side of the plane    to attach the wing the horizontal stabilizer and the vertical fin to a Exoskeleton about 1 1/2 pounds the rest of the plane is foam and fiber glass there was no distortion welding we had it clamped down  pretty good Thanks again Carl

At 4:26am on July 26, 2012, OG said…

Thanks for you assistance with my ecommerce sight yesterday . I appreciate it so much I give you my cost your first porches.

At 6:17pm on November 27, 2012,
Moderator
Dwgsparky
said…

Hi Robert, sorry I missed your request. still getting used. to this system.

Sorry, not waterslides,,,, Kiddie trains from Granby.

At 7:53pm on January 24, 2013, Joshua Johnson said…

My bad I was just trying to give new members someone they can ask questions to because the site is super confusing at first for a while when your new. Ill stop doing it!

At 11:47pm on April 23, 2013, Manuel Zangenfeind said…

Dear Mr. Lefebvre,

I saw some videos from your heli in Loiter Mode and thought wow this heli is standing rigid in the air.

I'm using a TREX 700E and want to fly this heli with apm 2.5 version 2.91 autonomously.

Currently I want to adjust the PID parameter. The stabilize and the Altitude Hold Mode is working perfect, but I have some problems with the Loiter values.

So would it be possible to send me your PID values of the loiter mode? I think they have to be very similar.

Thanks.

Nice Greets from Austria

Manuel

At 2:56pm on July 8, 2013, Jonathan Weisburst said…

Hi Mr. Lefebvre, 

Thanks for getting back to me.  Do you have any suggestions in terms of renting or hiring aerial videography crews or drones?  

All the Best, 
Jon

At 11:06pm on June 3, 2014, Matt said…

Hi Rob,

Interested in making a Tandem out of 2x 800 sized helicopter. Just interested to discuss your thoughts.

At 7:34pm on July 12, 2014, Eric said…

Hi Rob, I saw your DroneCon talk on youtube (which was great, thanks!), and it looks like you got cut off towards the end there. By any chance is the full slide deck available somewhere? Or was there much more left? Thanks!

At 3:02am on August 1, 2014, Artem said…
Hi Rob, i know you had a lot to do with AC yaw control, could you confirm if motor values are used in the formula for the yaw servo control? In other words if running a motor in a wrong direction would affect the yaw control. If so is this something that appeared in the code since 3.1.3 or was it there before? Thank you!

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