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Rob_Lefebvre
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Rob_Lefebvre's Groups

Rob_Lefebvre's Discussions

Helicopter Vibration Levels

Started this discussion. Last reply by Todd Urban Jul 18. 13 Replies

I just wanted to make a post to specifically address the issue of vibrations on helicopters, as I am seeing quite a few logs which exhibit excessive vibrations. This not only affects Loiter, but can…Continue

Warning about Helicopter Power Supply!

Started this discussion. Last reply by Vlastimil Vrskovy Jul 2. 27 Replies

I've posted about this before, but I feel I must reinforce this:You MUST use a completely independent power supply for your APM or Pixhawk than you use for the Servos.  DO NOT use one BEC to supply…Continue

Arducopter 3.2 Warning

Started this discussion. Last reply by Rob_Lefebvre Jun 5. 4 Replies

Just wanted to put out a warning to everybody, that you should not be testing any of the 3.2 Release Candidates for Tradheli until I say so.At this time, I have not flight tested 3.2rc1 or rc2. I…Continue

Who wants to alpha test Flybarred Acro code?

Started this discussion. Last reply by Rob_Lefebvre May 27. 79 Replies

I am attempting to fix the flybar acro code, wanted to get it out with the upcoming 3.1.3 release, but I'm in a bit of a pickle.  It compiles in Arduino, but won't compile in Make for PX4.  I assume…Continue

 

Rob_Lefebvre's Page

Latest Activity


Developer
Rob_Lefebvre replied to Rune Eide Hansen's discussion Servo stutter
"Is this log showing the problem?  Or it's running the acro fix code and doesn't have the problem?"
yesterday
Rune Eide Hansen replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"Not in Acro mode, but it still does it in stab and alt hold mode."
yesterday

Developer
Rob_Lefebvre replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"But are the servos still stuttering?"
yesterday
Rune Eide Hansen replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"Acro mode works with your fix"
yesterday

Developer
Rob_Lefebvre replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"3.1.4 contains an important bug fix for PX4/Pixhawk only. 3.1.5 contains a couple more bug fixes for PX4, and one fix that applies to all hardware, but it's importance is up to you: That applies to the final stages of landing on RTL.…"
Monday

Developer
Rob_Lefebvre replied to Rune Eide Hansen's discussion Servo stutter
"Really? So it's not just a problem with the flybar mode.  That is odd then.  There must be something particular about your setup. Can you enable RCOut and PID logging.  Set Ch6 tuning to one of the Rate parameters.  This…"
Monday
Joseph commented on Rob_Lefebvre's blog post Helicopter Presents Attractive Alternative to Multi-rotors and Fixed-wing UAVs
"Rob,  What don't you like about the DFC heads? Thanks Joe"
Monday
Rune Eide Hansen replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"I assume its this one: Who wants to alpha test Flybarred Acro code?  ? It's based on V3.1.3 will I loose something else important downgrading from V3.1.5?"
Monday

Developer
Rob_Lefebvre replied to Marcus Wright's discussion Moving to trads
"Hi, sorry I didn't respond sooner to this. My recommendation would be to get a Trex500 to start learning helicopters.  Helicopters with Arducopter are just as easy to control and fly as a multicopter, but it's the build and setup and…"
Monday

Developer
Rob_Lefebvre replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"I did make a binary that fixed it, but it was never officially released as there wasn't enough participation from the community.  If you look around here, you'll see another thread where I posted a binary to try, and one guy did try…"
Monday

Developer
Rob_Lefebvre replied to Rune Eide Hansen's discussion Servo stutter
"Yeah, I don't think that's right....  It is normal that with APM, the servo movements are slightly less smooth than you would normally get, but not like that! Which firmware is this? I assume you're using the Flybar mode?…"
Monday

Developer
Rob_Lefebvre commented on Thomas J Coyle III's blog post Cargo UAS set to deliver
"CAD is getting so good, it's getting really hard to distinguish from an actual photo of a prototype, or a photorendering pasted onto a background.I've seen another case where somebody is trying to sell an aerial platform that, as far as I…"
Monday
Rune Eide Hansen replied to Rob_Lefebvre's discussion Warning: Flybar Acro Mode
"I'm still having this issue with the newest firmware, hasn't it been fixed?"
Monday

Developer
Rob_Lefebvre replied to Xin H's discussion DIrect motor drive fix pitch tail?
"So last you used it, that code worked out fine? I would advise anybody use caution however, bench test without a prop to make sure it's working.  There have been a number of changes lately and I haven't been back around to look if…"
Saturday

Developer
Rob_Lefebvre commented on Thomas J Coyle III's blog post First UAV Near Miss with Ag Aircraft Reported in Pacific Northwest
" Because these people are not flying model aircraft out of an interested in aviation.  They are buying flying cameras."
Saturday

Developer
Rob_Lefebvre commented on Thomas J Coyle III's blog post First UAV Near Miss with Ag Aircraft Reported in Pacific Northwest
"I agree with the others who say the Phantom pilot was not automatically at fault for being where he was.  If the duster had not been there, we'd all say he was safely flying at low altitude in a remote area.  Suddenly and without…"
Saturday

Profile Information

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

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Rob_Lefebvre's Blog

Helicopter Presents Attractive Alternative to Multi-rotors and Fixed-wing UAVs

Posted on February 3, 2014 at 1:10pm 328 Comments

I've been working on a new helicopter platform the last few months. Based on an MSH Protos heli which I chose because it's an extremely light weight platform, weighing in at only ~1200g without battery. It has a full belt drive which I much…

Continue

Merry Christmas and a Happy New ACRO!

Posted on December 24, 2013 at 7:01pm 16 Comments

3.1 was released just in time for the holidays, but I felt the new Acro Mode we have developed has not been adequately demonstrated.  So I shot this video to show that Arducopter now has a competent Acro mode to go along with all the other functions.  This is kind of a big deal to me, as I am interested in learning acrobatic flying, but I really appreciate having…

Continue

Group Attempts Prison Contraband Deliver with Hexacopter

Posted on November 27, 2013 at 4:15am 7 Comments

I think this is actually the second attempt at this.  Wasn't there one last year?  Good to see that they actually caught the people involved and arrested them.  Hopefully it won't result in a knee-jerk reaction, but I doubt it.  The article is horribly written, but at least they didn't call it a "drone".…

Continue

Extreme Arducoptering

Posted on November 3, 2013 at 6:30am 6 Comments

 

On Friday we experienced very high winds, 60-90km/h, or Beaufort 7-8, this caused damage in the area, actually knocking over some trees, etc.  I decided to go out and test the wind performance of my F450 quadcopter, see if it's even possible to fly a quad in such conditions, and test the inertial Loiter performance.

 

Overall, it went fairly well.  Flight…

Continue

Comment Wall (9 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, 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!

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