Archive | April 2013

Project Phoenix Update – Wings

imageJust made up some quick mounts for our thrusters so that we can start testing some of the motor control. hopefully we can get it sealed up and in the water soon.

 

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UWE Sub Update – The Rise of the Phoenix

In mythology, a phoenix is an immortal bird that, when it dies, bursts into flames and is reborn.wpid-IMG_20130426_101115.jpg

The new hull has just come back from the painters and it looks awesome. It shows how much we have achieved already this year. New Sub, New Team, New Start.

UWE Sub has died and from its ashes Project Phoenix has been born.

Quad-copter Test Flights

Currently my house-mate is building a quadcopter. I have been helping him with some of the initial test flights to tune the hardware. Just a few quick videos of the first flights. The videos filmed at the green by the castle were with the copter in acrobatics mode. later we worked how to enable levelling making the flight much more stable which is seen in the darker clips seen by the house. A more detail on the Quadcopter build can be found at Andrew Bremer website http://roboticsbazaar.blogspot.co.uk/

Best flight:

Successful test flights:

Not all tests go as planned:

 

Lego Micro Quadcopter

legoquad1

Recently I managed to get hold of some spares from a few Hubsan x4 micro quads. I have been playing with these quads for a few weeks now and have many questions about how the set-up affects the flight characteristics.

Would angling the blades inwards make the quad more stable at the cost of efficiency?

Would a smaller frame make the quad more agile or would the props cause interference with each other?

Would angling all the props slightly forward make the quad handle more like a plane?

Could the quad support a V-tail set-up?

I decided to make my own chassis for a quad that could be be easily reconfigurable to test out different set-ups. My solution to this was to use Lego as this allows for endless customisation.legoquad3

The final result fly’s nice and weighs the same as the original frame. Adding to this could cause weight issues but I still have a few grams of lifting capacity to play around with. This frame is also slightly smaller, each blade almost touches the one next to it. this seams to have made no difference to performance but the quad seams to corner much nicer due to the lower centre of gravety.