I thought it was about time to start a U.K group, mainly due to the time difference between us and USA, so members can discuss their issues here and hopefully get the help they require sooner? Also it possible there is someone living not far away from yourself that you could swap ideas with and get first hand help and advice with your project.

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  • Moderator
    Dean Wynton June 2, 2012 at 5:06pm

    Sound like you know your stuff Rob..

  • Rob Haines June 2, 2012 at 5:01pm

    Carbon has high tensile strength but it's very brittle and cannot take much in the way of shock and would catastrophically fail. Adding a core such as closed cell foam would make it too thick. Adding a core like soric defeats the object of least weight as soric absorbes resin.

    A single layer of kevlar would do the trick. I make 25mm square arms in 1m lengths that weight about 120g and can easily take 100kg of load but make the same without the kevlar and they fail.

  • Moderator
    Dean Wynton June 2, 2012 at 4:27pm

    Good point Rob.. Although I would expect it`s pretty hard to break? we need some vids Martin of them being abused :)

  • Rob Haines June 2, 2012 at 4:12pm

    Martin, very nice carbon frames. I was looking at making something myself but have been tied up with other things,

    What is the finish of the carbon like? I've seen close up pics of the top domes before and was full of pits.

    Any idea on the composite layup? One broken arm means game over for what is suspect a very expensive frame

  • Moderator
    Dean Wynton June 2, 2012 at 3:49pm

    Maybe not? I still am having the same problem with co-ordinates?

  • Moderator
    Dean Wynton June 2, 2012 at 12:46am

    GPS co-ordinate problem has now been fixed by Randy..

    Well done.

  • Moderator
    Dean Wynton June 2, 2012 at 12:31am

    Conditions were good on this flight, I tuned them on that day so have to test on a windy day still, but I will do and post the result here

  • Distributor
    Martint BuildYourOwnDrone.co.uk June 1, 2012 at 11:01pm

    I hope to build a test / working demo of the carbon frame soon, the over heating is not an issue as there are ventilation holes set around the top of the frame and the gap around the motor should allow better movement of air . GPS signals could be an issue for APM 2 when mounted inside, however I have not checked just yet, so I will post an update when I have some findings, I'm not rushing to build one, I'm taking the weekend off building and going flying for me :)

    Regards

    Martin

  • Distributor
    Martint BuildYourOwnDrone.co.uk June 1, 2012 at 10:50pm

    That's looking super Dean, what were the conditions like when you were flying?

    Regards

    Martin

  • Moderator
    Dean Wynton June 1, 2012 at 2:21pm

    Check this for Loiter

This reply was deleted.

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