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Rob_Lefebvre
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  • Ontario
  • Canada
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Rob_Lefebvre's Groups

Rob_Lefebvre's Discussions

AC3.3 TradHeli Release Discussion

Started this discussion. Last reply by uavfans on Tuesday. 1 Reply

WARNING to TradHeli users:Do not attempt to fly AC3.3 until you hear otherwise from me.  I have not even bench tested it yet, let alone test flown it.  There are quite a lot of changes that have gone…Continue

Helicopter Vibration Levels

Started this discussion. Last reply by william han lee Mar 27. 61 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 Stuart Brookes Jan 21. 30 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, 2014. 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

 

Rob_Lefebvre's Page

Latest Activity

Marc LE BRET commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"Hello, I have a QX1. There are at least two products available to control it via R/C and multi-USB plug. VP-Systems CamRemote 2A is the more complete and you can also control the zoom. Mono from SkySight control shutter (with or without AF, single…"
38 minutes ago

Developer
Randy commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"Jaime Machuca has a MavProxy enhancement that can run on an intel edison and trigger a Sony QX1 camera using it's wifi link.  Because the command is very short he hasn't seen any (noticeable) interference with the RC or GPS. …"
1 hour ago
Paul Meier commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"I am not very interested in using 2.4 wifi because of rc interference, notwithstanding one may use different spektrum rc. I also have not found any solutions on how to connect to a wifi direct over a network (don't make sense does it) Best of…"
10 hours ago
Chul Min Yeum commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"Paul Have you found any solution through wifi using small wifi modules? I am looking for a solution for the following thread. http://diydrones.com/forum/topics/build-360-degree-camera-rig?xg_source=activity"
11 hours ago
Paul Meier commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"Some tima ago I asked http://www.gentles.ltd.uk/ they have solutions for thousands of camera but NOT for the QX series"
11 hours ago

Developer
Rob_Lefebvre replied to Kris Kitchen's discussion Landing drone flips over and will not turn off? in the group IRIS
"If accidentally flipped, you can turn the motors back on instantly.  As long as you have a little altitude it will recover. RC Helis have operated using switches like this since forever."
11 hours ago
Chul Min Yeum commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"Sorry. Recently, I talked with a developer in VP-systems (http://vp-systems.eu/). I realized that it may operates through wifi inside the drone. I guess the rc controller send a triggering signal to the drone and the drone may send shutter signal…"
11 hours ago
Sylvain.M commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"@Paul Meier: I think there's a solution to control it. @Chul Min Yeum give a piece of the solution with the images of Dranganflyer's gimbal of QX100. "
11 hours ago
Paul Meier commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"as far as I have researched... sorry no solution...... :( I am thinking of opening the camera and solder something to replace the manual shutter button"
12 hours ago
Sylvain.M commented on Rob_Lefebvre's blog post Sony Releases Stand-Alone Imager
"I've a Sony QX 100 to mount on my Iris+. I would like to control it (only trigger) by the USB port, if somebody have a solution, i take it! Regards. "
12 hours ago

Developer
Rob_Lefebvre commented on Greg Crutsinger's blog post Launch of Airware
"Also, I'm curious about the business case for this system.  There is of course marketing language on the website about safety and reliability.  But without anybody being able to inspect the code, that can't be independently…"
14 hours ago

Developer
Rob_Lefebvre commented on Greg Crutsinger's blog post Launch of Airware
"I notice in the specs, it seems there is only a single IMU (Accels and Gyro) is that correct?"
14 hours ago

Developer
Rob_Lefebvre replied to Kris Kitchen's discussion Landing drone flips over and will not turn off? in the group IRIS
"I dunno, this seems like a really bad idea to me. I'd rather solve the problem of why you say your "copter starts drifting away and nothing stops it".  That should not happen, and we hunt down those bugs vigorously.  I…"
yesterday

Developer
Rob_Lefebvre replied to Kris Kitchen's discussion Landing drone flips over and will not turn off? in the group IRIS
"Just to be perfectly clear.  Kris's initial tip over was apparently caused by landing on a mole-hill or grass. After that, the problem was that the copter did not flip over completely.  It was only tilted at 45 degrees, or at least…"
yesterday

Developer
Rob_Lefebvre replied to Randy's discussion Copter-3.3 beta testing
"Awesome! I also have a quad that was a disaster, and is much much better on 3.3."
yesterday

Developer
Rob_Lefebvre commented on JB's blog post UAV Challenge Medical Express rules have been released.
"Wow, so 20-30km return.   Anybody still planning on dropping an electric quad that would return?  You'd need enough juice to fly for about 45 minutes at 15 m/s.  That's a big ask."
yesterday

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

New Drone Service Tests Commercial Usage Laws in Canada

Posted on March 20, 2015 at 8:58am 19 Comments

http://bigwhite.cmail2.com/t/ViewEmail/r/3059DF9ADD1D1A942540EF23F30FEDED/D84B544420A969371726EA5DA1051479

This just popped up on a Canadian Commercial Operator Facebook group and we're discussing the implications and legal…

Continue

CBC Documentary: The Age of the Drone

Posted on February 18, 2015 at 8:13pm 3 Comments

On February 19th at 9PM, the Canadian Broadcast Corporation will air a new documentary on drones, following up the one they did last year called Remote Controlled War.  Last year's was more focused on the military aspects, this new one is more commercial/recreational.

I'm not sure what the availability will be for those outside Canada.  Hopefully our…

Continue

Iris/Pixhawk Cold Weather Testing

Posted on February 18, 2015 at 5:00pm 27 Comments

Last weekend I drove up north a bit for some real cold weather testing of my Iris+ equiped with Pixhawk.  I had to get up early in the morning to catch -30C temperatures which is about as cold as I'm interested in testing.  At -30C, my gloved fingers froze after a few minutes.  Not quite frostbite, but deep into pain territory.

Spurred…

Continue

Canada to Regulate Recreational Flights Like Commercial

Posted on February 11, 2015 at 1:30pm 7 Comments

I'm not sure if anybody who is not a member of Unmanned Systems Canada can see this report or not:

https://www.unmannedsystems.ca/media.php?mid=4633

So I will summarize:  At a meeting of the International Civil Aviation Organization in Montreal last week,…

Continue

Comment Wall (13 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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