"The clockwise motors,1,3,6 are less power than the counterclockwise,2,4,5 motors. It is compensating for an inherent yaw in the airframe. I am assuming you have clamp type motor mounts and tube arms. Check that all the motors are on the same plane,…"
-
Greg Fletcher
- Male
- Gardner, IL
- United States
- Blog Posts
- Discussions (411)
- Groups (7)
- Photos (3)
- Photo Albums
- Videos
Greg Fletcher's Groups
-
Pixhawk 2 User Group
281 members
-
PIXHAWK
1078 members
-
IRIS
832 members
-
Learning to program the …
597 members
-
ArduCopter User Group
3138 members
Greg Fletcher's Discussions
Eagle files for APM 2.5?
Started this discussion. Last reply by Chris Anderson Aug 30, 2012. 3 Replies 0 Likes
latest java update and Arduino problem
Started this discussion. Last reply by Greg Fletcher Jul 4, 2012. 2 Replies 0 Likes
Happy's IMU test and APmega
Started this discussion. Last reply by Paul Mather Apr 15, 2011. 4 Replies 0 Likes
Greg Fletcher's Page
Latest Activity
Greg Fletcher replied to Preamble's discussion Asking for experienced advice on Tlog first flight HEX YAW IMU issue in the group Pixhawk 2 User GroupGreg Fletcher replied to steven Choi's discussion Why my copter keeps drifting"From your picture I can see that it is installed correctly with the yellow arms being the front. Also the fact that is flying means it is the correct orientation, otherwise it would flip over. I think what you need to do is reverse the pitch…"
Greg Fletcher commented on Graham Dyer's blog post 450 Wh/kg SolidEnergy batteries, the lightest rechargeable cell in the world?"Probably real good for a efficient long endurance fixed wing, but not so much for a copter. While the energy density doubles, the maximum C rating is one fifth of the best copter batteries, only 2C. You would still be pushing C limits, but my 650…"
Greg Fletcher replied to Ray's discussion bad crash last Saturday - can someone here read logs and analyze ? in the group IRIS"looks like it just got some bad oscillation. Maybe was riding on the edge for some time then'''' wooow instability. That's what I see."
Greg Fletcher replied to Felipe Rabat's discussion Vibration"I had this happen to my copter after a benign modification. I have very well balanced props and they are checked on a Dubro balancer. I changed motor mount because I thought they would be more secure, but they added 20 g and extended the arm length.…"
Greg Fletcher replied to moriarty's discussion strange behaviour of pixhawk-request help to understand in the group PIXHAWK"hello moriaty,
I have just looked at some of your latest logs. Same critical problem exists, bad voltage to the pixhawk, excessive battery voltage drop from idle to flight.
your power
bad%20power.PNG
power from my copter
good%20voltage.PNG
It is…"
Greg Fletcher replied to Oscar Renato's discussion How to make a boat for bathymetry?"I doubt any one will volunteer to help you until you explain what you mean by "armed drones". I think we might have a language issue as that sounds to me like you were using a weaponized drone for photogammetry. If you don't have an…"
Greg Fletcher replied to Jon Turner's discussion pixhawk 2.1 with jeti spin pro 300 and tmotor u15 no spin up"Wow, that will be a monster machine. Are you talking about a 200 lb. payload or gross vehicle weight? If you are talking 200 lb. payload it will be under powered. I figure your motors ,esc's, and 12 s battery for each motor will weigh ~ 100…"
Profile Information
- About Me:
- This field under construction
- Please tell us a bit about your UAV interest
- aerial photography and fpv video.
- Hometown:
- Gardner IL
Greg Fletcher's Photos
Comment Wall (5 comments)
- At 1:54pm on May 7, 2012,
Amilcar Lucas said… Hi there Greg,
Yes, I'm still working on the camera stuff, but not as mutch as I would like.
The most recent version of the code is in the APM_Camera git branch.
It contains libraries to control the mount (AP_mount) and the camera (AP_Camera)
There is also some documentation on the wiki.
It would be nice to join efforts.
- At 1:20pm on May 9, 2012, Amilcar Lucas said…
Hi Greg,
Yes please send me the files I will take a look at it.
- At 1:41pm on June 3, 2012,
Carl La France said… Hey Greg Go to my page and look at my photos this is not my first experience with air foils
Thanks for the comment! You have a Great Day!
- At 1:18am on June 12, 2012, Carl La France said…
Hey Greg ! It hit me while I was sleeping tonight and woke me up ! Getting baby scale is an Excellent idea! not just to weigh the plane but if I get one that shows ounces and fraction of ounces I can weigh each item and figure it's moment before I put it in the plane and help figure the best spot for it from the COG + or - and keep the trimming ballast to a minimum. the rest of the plane will be foam I have been looking at power plants and might do Something Novel ? I am aiming for a take off weight of 4 1/2 to 5 pounds if I get a power plant out of something 7 to 10 pounds it should be lots Thanks! Have a Great Day!
- At 10:59am on August 25, 2012,
Shyam Balasubramanian said… Hi Greg,
I read your posts that you have made a camera gimbal stabilizer. I work on Arduplane source code, with the APM-1 board, attaching 2 servo to work out solution for 2-axis stabilizer. It will be helpful if you could share your source so that I can have a look at it to get a better idea !
Regards,
shyambs85@gmail.com
Top Discussions
Groups
-
BRAZILIAN GROUP DRONE
234 members
-
Agricultural UAVs
1048 members
-
ArduRover User Group
611 members
© 2018 Created by Chris Anderson.
Powered by
