Rob_Lefebvre
  • Male
  • Ontario
  • Canada
Share

Rob_Lefebvre's Friends

  • Sriram
  • Halil
  • Jose Barreiros
  • Justin Brisebois
  • Luis Moreno Julimez
  • Jesse Moore
  • Reza Michael Nemovi
  • dongfeng
  • Mike Hoffman
  • Olivier
  • Javier Vergara
  • Pascal Fust
  • DRONAFON
  • m ridwan hakim
  • gjw

Rob_Lefebvre's Groups

Rob_Lefebvre's Discussions

For Sale: Like new Canon SX260

Started Apr 19, 2016 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, 2016. 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, 2016. 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, 2016. 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

Rob_Lefebvre commented on Kristaps Brass's blog post Comparing Precision of Autopilots for Survey Missions - Pixhawk with ArduCopter firmware
"Pretty good result as expected, and I notice it wasn't a wind-free day either.Would be interesting to see the results if you set a 1 second delay on each waypoint, it could cause the craft to exactly hit each corner and stop, making truly…"
4 hours ago
Rob_Lefebvre commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"John, good point.  I know we've seen datalogs where the sensors are not performing within spec."
yesterday
Rob_Lefebvre commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"When (or rather if) Honeywell discovered a problem with their IMU, they would issue a recall.Compare that to known examples from other manufacturers who have discovered major issues with flight controllers, they delete user comments from their…"
Tuesday
Rob_Lefebvre commented on Chris Anderson's blog post How do modern open source autopilots compare to aerospace-grade IMUs?
"Any comparison between these systems, must consider not just the raw performance specs of the chips, but also the MTBF of them, amongst other details.  And not only the details of the chips themselves, but the quality of the systems engineering…"
Tuesday
Rob_Lefebvre commented on Bart Theys's blog post Meet CargoCopter: our latest generation of high-speed, long-range drones
"Ok, I wondered, as I know how difficult it is to lift 5kg.  Still, 2kg at that speed and range is a nice spec for a lot of applications.I actually think that racing quads should evolve to look a lot like this...  It's just the natural…"
May 30
Rob_Lefebvre commented on Bart Theys's blog post Meet CargoCopter: our latest generation of high-speed, long-range drones
"Nice work Bart.  Glad to hear you're having good success with Ardupilot too.Is the one you demonstrate capable of 5kg payloads?  "
May 30
Rob_Lefebvre replied to Ryan Perez's discussion Introducing the Splash Drone 3 + make easy money by sharing the campaign
"Ryan, it costs millions of dollars to develop a proprietary flight controller from scratch.  How can you support that on a $50,000 kickstarter campaign?"
May 30

Moderator
Sgt Ric left a comment for Rob_Lefebvre
"Congratulations Rob.  I know you have been working hard on your enterprise and at the same time have been a valued contributor to the community for many years. I hope you continue to share with us as you have always done, and I hope you took…"
May 25
Rob_Lefebvre commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Prop efficiency should not be included in the motor efficiency figures.  Also, it would be nearly impossible to see prop efficiencies near 90%. Highest I've seen is 75%."
May 24
Rob_Lefebvre commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Yes, incredible work.  And I love to see real practical applications of high-performance 3D Printing. But I'm curious about the efficiency numbers. 80% seems to be pretty low compared to typically claimed BLDC efficiency of 92%.  Is…"
May 24
Rob_Lefebvre commented on Gary Mortimer's blog post No more $5 FAA fee, John Taylor wins his case.
"I don't know. I don't think they know how good they had it.Canadians wish we could pay just $5 to have the government leave us alone.We don't have registration, but we are now required to have our name, address and phone number…"
May 20
Rob_Lefebvre commented on Olivier's blog post Congratulations to accepted Ardupilot students, Google Summer of Code 2017
"After it has deployed a UGV, yes."
May 4
Rob_Lefebvre replied to Brad Hughey's discussion The Case for Large-Scale Electric Multicopters
"Gary, I actually think that for basic hovering operations, or flight at low speeds, or in light wind conditions, multirotors actually make more sense.  You basic consumer aerial video, or even professional stationary aerial video, a multirotor…"
Apr 30
Rob_Lefebvre commented on sander's blog post DeltaQuad VTOL completes 100KM autonomous mission carrying a 1KG payload
"Ok, yes, I assumed that you used low wind conditions as most do for these tests.  How sensitive is the airframe to windspeed:  ie: how steep is the power/speed curve as it's flying upwind? "
Apr 30
Rob_Lefebvre commented on sander's blog post DeltaQuad VTOL completes 100KM autonomous mission carrying a 1KG payload
"Nice achievement.  What were the wind conditions at the time?"
Apr 30
Rob_Lefebvre replied to Brad Hughey's discussion The Case for Large-Scale Electric Multicopters
"Yes.  Again, my intent here is not to say that electric multirotors have no place, or that helicopters are just better. It's just to have an honest discussion about the issues. We can't advance the technology if we don't tackle…"
Apr 30

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

Loading…
  • Add Photos
  • View All

Rob_Lefebvre's Blog

Procyon 800E Enters Limited Production

Posted on December 16, 2016 at 12:00pm 18 Comments

NOVAerial Robotics is pleased to announce that the Procyon 800E drone helicopter has finished it’s prototype and testing phases and is beginning limited production and delivery to commercial companies worldwide.

The first customer to place…

Continue

NASA Chooses Helicopter For MARS Drone

Posted on September 2, 2016 at 10:53am 9 Comments

(Originally posted on NOVAerial Robotics Blog)



NASA is now planning on using a UAV in addition to the Rover in order to explore Mars.  The reasons are very simple, and parallel the desire to use UAV’s on earth.  Having a…

Continue

Procyon 800E Phase 2 Beta Testing Begins

Posted on July 21, 2016 at 5:59pm 42 Comments

( Blog Reposted From Here )

NOVAerial Robotics is pleased to announce that Phase-2 beta testing of the revolutionary…

Continue

Comment Wall (18 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!

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

Groups

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

© 2017   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service