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Rob_Lefebvre
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Rob_Lefebvre's Discussions

Helicopter Vibration Levels

Started this discussion. Last reply by UAS_Pilot Sep 12. 33 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

David Boulanger commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Rob,  Sorry to read about the crash.  I had thought about the battery popping out of the GPS but never thought about it shorting things out.  Makes me look at everything closer and a little different. Again, sorry for the set…"
14 minutes ago

Developer
Rob_Lefebvre commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Rob, I use the Pixhawk gyro.  It works perfectly fine.  The external gyro functionality is something else that I am not sure about the status on.  Does not get used much."
27 minutes ago
Josh Potter commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Sorry to hear about the crash, but you took away some good information that will make things better for everyone in the future."
30 minutes ago
Rob Dunbar commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"@Rob_Lefebvre, sorry to read about your crash. However, thanks for the after event report on your crash investigation. I'm heating up the hot melt glue gun right now to hold in those batteries. I too prefer to test at my local airfield when no…"
37 minutes ago
Tipu commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Ooh Very Sad. But dont give up Dear."
2 hours ago
Tipu commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Great Job. I wished someone do that , so I can mount APM on my Gasser. waiting for more videos"
2 hours ago
UAS_Pilot commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Sorry Rob. I look forward to the rebuild and continued testing of the gas powered system, Thanks"
2 hours ago

Admin
Gary Mortimer commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Sorry to hear about the incident, but being at the bleeding edge of this stuff brings trouble."
2 hours ago
Hugues commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"@Rob, sorry to hear about your crash. Rebuild and go on ! Crashes are the path to learning as we have all experienced...(unfortunately)"
2 hours ago
Todd Urban commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"ouch I have had one fall off before I always glue them with hot glue since then that sucks a$$"
2 hours ago

Developer
Rob_Lefebvre commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"I have to report that unfortunately this helicopter crashed on Saturday afternoon.  After about 1 hour of total air time, it departed from controlled flight and crashed from about 10m altitude.  Accident investigation has determined root…"
2 hours ago

Developer
Rob_Lefebvre commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Mike, it is certainly possible.  However, there are two things that make it tricky. First, the flybar code is not used much.  I can't guarantee it works properly at this point.  I've put a lot of effort into the flybarless…"
4 hours ago
Mike Bell commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"I like it! Do you know if this would work with a flybar Heli? I have a Bergen EB with the BH Hanson 26cc motor that has a fly bar. Any info you could share would be appreciated."
4 hours ago
Todd Urban commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Its easily explained its called building a well built properly tuned machine it is that simple no vodo magic"
5 hours ago

Developer
Rob_Lefebvre commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"Matan, there's no magic to solving it.  It's just a skill that I have developed over the past 3 years, being able to build systems that don't shake the flight controller too much.  It's not any one thing, and not easily…"
5 hours ago
Quadzimodo commented on Rob_Lefebvre's blog post Arducopter Flies Gas Powered Helicopter
"1 hour flight time with a 10kg payload... Now ya talkin'! Nice work Rob."
5 hours ago

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

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Rob_Lefebvre's Blog

Arducopter Flies Gas Powered Helicopter

Posted on September 20, 2014 at 11:20am 50 Comments

Now we're cooking with gas!

I have just completed a project to build a helicopter with a gasoline engine, controlled by Arducopter (of course!)  This helicopter serves as a test bed for future gas heli development work for a client of mine.  The goal was to prove out that it could be…

Continue

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

Posted on February 3, 2014 at 1:10pm 335 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…

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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…

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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".…

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Comment Wall (10 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!

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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