Support

Forums

Contact Me

Download

Demo

You are here: Home Hobbies Linux Suse Linux Technical Oracle Please set ORACLE_UNQNAME to database unique name

A Swarm of Nano Quad rotors

  • Print
Details
Category: RC helicopter
Published on Wednesday, 01 February 2012 21:42
Written by Administrator
Hits: 1710

kmel_nano_quads

The General Robotics, Automation, Sensing and Perception (GRASP) Lab, located at the University of Pennsylvania, is already well known for its work with quad rotors. And now they can fly autonomously.

Experiments performed with a team of nano quad rotors at the GRASP Lab, University of Pennsylvania. Vehicles developed by KMel Robotics.

Converting a Spektrum DX5e from Mode 2 to Mode 1

  • Print
Details
Category: RC helicopter
Published on Sunday, 08 January 2012 15:33
Written by Administrator
Hits: 1639

spektrumDX5e

Spektrum introduces another enormous change for the RC industry—The most affordable full-range 2.4GHz radio ever available. The DX5e brings together the unbeatable control of genuine DSM2 technology with the simplest, easiest-to-use design available, letting anyone, from park fliers to students to instructors and more, take advantage of Spektrum technology for less

Mode 2 is most often used in the United States, while Mode 1 is most often used in Europe, there are two other modes that are used overseas and here is a listing of the 4 modes and their actions.

  Left stick Right stick
up/down left/right up/down left/right
Mode 1 elevator rudder throttle aileron
Mode 2 throttle rudder elevator aileron
Mode 3 elevator aileron throttle rudder
Mode 4 throttle aileron elevator rudder

Read more: Converting a Spektrum DX5e from Mode 2 to Mode 1

QuadroCopter buyer guide

  • Print
Details
Category: RC helicopter
Published on Wednesday, 16 November 2011 22:25
Written by Administrator
Hits: 2925

QuadroCopter_buyer_guide

I remember discussing with Mike Dammar back in 2003, he was the inventor of this concept way before it get sold to Draganfly innovations (I think his company was name AFOT) Anyway, here is a list I’ve compiled of all Quadcopter available today on the market. I have still my Roswell Flyer, HMX-4, Draganflyer back from 2004 but in comparison of these ones, it look now more like a toy.

How is a quadrocopter working?

There are two different propeller-rotations. The front and back propeller turn clockwise, while the left and right propellers spin counter-clockwise. To hover, all propellers rotate at the same speed. When doing so, the forces between the clockwise props on one hand, and the counter-clockwise props on the other hand, are balanced out. This makes the quadrocopter hang steady in the air.

To be able to fly in one direction, the quadrocopter will be brought out of balance. The speed of the propeller that opposes the desired direction is increased. This makes the quadcopter tip over in a certain direction. Example: to fly forward, the back-propeller has to turn faster. This is called "pitch" or "nick" or forward/backward-movement. Left and right movements are called "rolls".

The opposite (vertical) axe is called "yaw". To be able to yaw you need a force to turn around. This force is created by changing the speeds between the forward/backward props and the left/right props. Example: to yaw clockwise, the forward/backward propellers will turn faster and the left/right propellers will slow down a little. This makes the quadcopter turn clockwise, while maintaining the same height.

Feel free to send me a link to any quadrocopter model not listed here.

Read more: QuadroCopter buyer guide

Subcategories

Donations

Thank You for supporting my work

Search

Donate

 
Amount in $USD:


(You are free to cancel at any time)

Most Read Tags

Feeds

Latest Tags

My OSS Projects at

Help Us & Leave Feedback!

We would love to hear from you! Be active! Write us now!

Recommended Site

Last articles

Follow via Facebook Follow via Twitter Follow via Google Follow via RSS