Luc Maximilien
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Luc Maximilien's Discussions

After 19 minutes in Loiter ,150° Yaw rotation and went gently down vvithout responding to radio sticks

Started this discussion. Last reply by Luc Maximilien Aug 30, 2016. 9 Replies

Pixhawk last revision with 3.3.3 firmware.It is not the first time it happens, but previously I suspect bad compass , Gps gliches, solar storms .Today I check everything twice and all was going…Continue

Heavy drone crash during Ski World Cup

Started this discussion. Last reply by Andre K. Dec 23, 2015. 1 Reply

Italy already…Continue

Tags: campiglio, madonna, slalom

Circle mode not working as it should

Started this discussion. Last reply by BaNe Machine Sep 23, 2014. 2 Replies

I'm using version 3.13  with an Hexa ,Even if I change the value of circle_radius  from 20 to 30 the copter circle perfectly but only with a radius around 10 meters .Also the circle_rate  with values…Continue

Tags: rate, radius, circle

Only two output pins with PWM for the gimball ?

Started this discussion. Last reply by Luc Maximilien May 7, 2014. 1 Reply

I have recently bought a APM 2.6 , I use a custom build brushless gimball for Sony cx730 and only pins A10 and A11 have a PWM output while I need another one for the zoom function of the Sony.I have…Continue

 

Luc Maximilien's Page

Latest Activity

Luc Maximilien commented on Phillip Kocmoud's blog post Introducing the AUAV X2.1 Flight Controller
"I have receive yesterday  the board and was able to install Arduplane 3.8.2 with Mission Planner. Parameter AHRS_ORIENTATION must set to 2 if you mount your board with front in front of the plane. Do someone knows where I can find  a 3D…"
Oct 6
Luc Maximilien replied to Randy's discussion PixRacer with Ardupilot
"Autotuning works pretty well , run one axis separately  and you will have a good result"
Oct 6
Luc Maximilien replied to Ewen Rankin's discussion One Hour Flight Times - Specs
"Martin, the setup is nothing special , 16" props, 440 Kv motors , custom frame, high density Lipo battery. It is the way the multirotor is build that makes the difference and allow  to reach 11 - 12 gr / Watt efficiency. The…"
Oct 4
Luc Maximilien replied to Ewen Rankin's discussion One Hour Flight Times - Specs
"I build a quad for a customer two years ago that flies 45 - 50 minutes 1700 gr AUW  , 250 grams of payload and standard Lipo batteries. It has been used by dozen of hours of flight for aerial mapping without any problem. Guess that with recent…"
Oct 2
Luc Maximilien commented on Phillip Kocmoud's blog post Introducing the AUAV X2.1 Flight Controller
"Thanks for the reply Jordi. Mine has shipped yesterday , I'm curious to test it and compare the X2.1 to traditional Pixhawk . Hope that Invensense sensors will make the difference. More outputs in a smaller factor is an advantage over Pixracer."
Sep 28
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"Tested 7 years ago at the beginning of multirotor adventure, as I wrote : The overlapping will cause no problems but I doubt it will increase efficiency ."
Sep 26
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"Guess that 4 pair of good 18" propellers as T-motor are not cheap. Good Luck for your project !"
Sep 25
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"In that case I suggest to switch to a different type of batteries , Sony Lion high C discharge , so you can go up to 20 minutes. "
Sep 25
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"I have done some maths , not with E-calc,  you should hover at 91,6A with a 6S setup . Are you using standard 20-30C Lipo batteries  with 3000 g of weight ?"
Sep 23
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"The overlapping will cause no problems but I doubt it will increase efficiency . You can change by software the motor direction if you have black MK Esc or last version MK Esc,  if you have the red MK Esc it is not possible and you have to…"
Sep 23
Luc Maximilien replied to Miron Bogacki's discussion Bigger propellers on octocopter at the same size of frame
"Going from  16" to 18"  depends also if you are actually with 4S or 6S batteries . Finally you will get a 10% more thrust if T-Motor chart correspond to reality but the propeller weights more so it will less than 10% and has more…"
Sep 23
Luc Maximilien commented on Phillip Kocmoud's blog post Introducing the AUAV X2.1 Flight Controller
"Hello Jordi, can you explain where the I2C connector is located actually ? So finally to use the board the user must buy also the Basic Cable set or it will not be able to connect the board via Usb since no Usb connector on the board. The cable…"
Sep 19
Luc Maximilien replied to Val Leon's discussion MonoPhan NanoPhan MonoBot NanoBot
"Very nice, compliments  ! The concept is interesting but the efficiency of the system must be quite low as it is usually with EDF. I would like to give it a try  in the hope to increase efficiency I have quite a lot of RC unused…"
Sep 9
Luc Maximilien replied to Erick Gibbs's discussion PRESSURE WASHING TETHERED UAV
"Not sure to understand what you want to realize but IMO it is not possible to build a multirotor that will hold the thrust of a pressure washer hose , we are talking about several kg of thrust and  where do water will come ? A tube that old…"
Jun 21
Luc Maximilien replied to Arunava Pal's discussion Question about battery performance
"Arunava, you are completely wrong. The tension of the battery goes directly to the ESC and the required rpm to prop is not provided by the BEC but from the three fase drive of the ESC to the brushless motor. So the tension you'll need to…"
May 19
Luc Maximilien replied to Brad Hughey's discussion The Case for Large-Scale Electric Multicopters
"About T-Motors and other hardware companies I would like to underline that they  often lie about the performances of their products , I had  a long discussion with T-Motor because of 20% less performance than their data sheets even with…"
Apr 30

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bulid multirotors for aerial videos
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