Profile

Cover photo
Darren Lee
Attended Texas A&M University–Commerce
Lived in Dallas, TX
19 followers|25,280 views
AboutPostsPhotosYouTube

Stream

Darren Lee

commented on a channel on YouTube.
Shared publicly  - 
 
Dennis, your videos are a lifesaver for me.  I was wondering if you by chance knew anything about this.  I have asked many different people and sites to no avail.


     I am the pilot for a video production company, and they just had an F450 custom built.  The first time I took aff, an arm broke off at the motor mount and it crashed to the ground breaking the GPS mount and 2 of the 12" props that came with it.  I replaced all of the arms and did not disconnect any wires.  I remounted things exactly the same.  I zip-tied the GPS straight up and down and it consistently gives me an HDoP of 1.5 (mount broke at the base.  Pole was fine)  These last few times that I have flown it, I have had a very peculiar problem.

      I was testing the autopilot on a simple flight that had a circle WP, a loiter WP, and then another WP which triggered RTL.  After the circles were completed, the quadcopter seemed to be flying to its next WP fine, but then it drifted down from 25'  and bounced up off of the ground pretty hard.  It seems like the throttle just wasn't enough.  I then landed it and took off in loiter.  I hovered 15 feet off the ground and after a minute it slowly came down and bounced back up.  I put the throttle at full and it never responds.

      I can share the few log files that shows what happened.  On that logged flight, I just tried to hover and see how long it would last.  Almost, every time at the minute mark of being in the air, it begins a slow descent, but it bounces back up like it is trying to fly.   I have not had this long enough to familiarize myself with analyzing the logs.  This is not good and very dangerous.  Thank you for any help!



EQUIPMENT:

Pixhawk FC

RCxHobby 2814-700kv motors

Not sure what the ESCs are because they are black heat shrink wrapped (I was told they were upgraded)

3dr 915 mghz telemetry

Tarot 2d Gimbal

Turnigy 4000 mAh 4s Battery

3dr BEC Power controller

11 x 4.7 carbon fiber props

Ublox gps with built in compass

Turnigy 9x v2 TX and 8 channel Receiver
1
Dennis Baldwin's profile photoDarren Lee's profile photo
2 comments
 
+Darren Lee
 This is really bugging me.  It must be a throttle power issue.  The winds here for the last week are 20 mph with 40mph gusts.  I don't want to fly it to test it.  Have you gotten a chance to look at the logs?  I notice the throttle out fluctuates until it's problems and then it is hitting 700 and flat lines until it goes to land.  Is the altimeter broken?  It seems to read the altitude correctly?
Add a comment...

Darren Lee

commented on a video on YouTube.
Shared publicly  - 
 
Actually I did. I was talking about the fans. Good try though
2
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...
Have him in circles
19 people
Optic Man's profile photo
Amanda L Garrett's profile photo
Jane Cora's profile photo
Randall Owens's profile photo
Allisa Cornwell's profile photo
Gerald Beattie's profile photo
TheNorthwestSun's profile photo
Bob Shrader's profile photo
Ryan Short's profile photo

Darren Lee

commented on a video on YouTube.
Shared publicly  - 
 
Could you get me a serial #?  Thank you!
1
Add a comment...

Darren Lee

commented on a video on YouTube.
Shared publicly  - 
 
Doesn't take long for one of you to prove my point. Losers with no class! 
1
Nick Merola's profile photo
2 comments
 
So no, you didn't prove your point
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...

Darren Lee

Shared publicly  - 
1
Add a comment...

Darren Lee

commented on a video on YouTube.
Shared publicly  - 
 
Awesome job you ballsy one.
1
Add a comment...
People
Have him in circles
19 people
Optic Man's profile photo
Amanda L Garrett's profile photo
Jane Cora's profile photo
Randall Owens's profile photo
Allisa Cornwell's profile photo
Gerald Beattie's profile photo
TheNorthwestSun's profile photo
Bob Shrader's profile photo
Ryan Short's profile photo
Work
Occupation
Construction and Finance
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Previously
Dallas, TX - Charleston, SC - Houston, TX - Denton, TX - Atlanta, GA
Links
YouTube
Story
Introduction

It's a beautiful day! It's been all over. It's been all over you.

I am me. I love the sea, my dog (Febe), my family, my friends, a day on the boat, a day at a ballgame, and the list could go on and on. You are responsible for your own happiness, be happy.

Education
  • Texas A&M University–Commerce
    Psychology, 1998
Basic Information
Gender
Male
Looking for
Friends, Dating, A relationship, Networking
Relationship
In a relationship