Space frame X8

I'm looking to build a skywalker x8 but there is a few improvements I would like to make. I would like to make a space frame from c/f rods and the shell from fiberglass. The reason for this is to increase wing strength, have a much larger space for components (hollow wings/larger inner fuselarge)and for a smooth surface finish for a more efficient/ fast uav. As I'm relatively new to all this can anybody see any potential problems with this idea? Tx signal with the carbon rods for example. Thanks in advance for your opinions.

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  • I would say that due to the extra weight the power plant have to be stronger! 

    http://youtu.be/LtC2z9I-UC4

  • My plane is totally cover on fiberglass! a bit on the heavy side but I'm a happy camper wit it! Perhaps what I think that is the heaviest is the landing gear do! 

    http://youtu.be/VxXPKqYAIxQ

  • http://diydrones.com/group/x8   started a x8 group if you want to throw some ideas around

  • Kevlar? Wow. If I remember correctly, Kevlar does not respond well to the 'traditional' resins as used in fiberglass or CF.

    'Lob' or lab project? How much time do you have for this build? If pressed and you cannot find a donor X8, buy a cheap one to use as the plug.

    Warning - some foams are attacked by resins and such. This implies you cannot just take a new X8 and start layering up materials and resins to make a mold. Test an unused area first.

    Search for 'fiberglass mold making'

     

  • Not knowing your experience with building (but I am encouraged at your interest and desire), this is the general idea I had regarding a monocoque X8...

    CLICK HERE

    I am envisioning wings made the same way that attach to a central body of the same construction.

    You would lay in fiberglass or CF rods of your choice to give added rigidity (but I am not sure it would be needed).

    All controls could be internal and access via hatches built into the part.

  • Depending on the size, a space frame is really over-kill where as a monocoque body with similar construction wings would be fine.

    The trend to run to CF only runs the price up on the build. Using good quality glass cloth and resins eliminates the RF attenuation issues with CF.

    I say find someone with busted up X8 and use it to make a plug for a fiberglass mold. You could then use the CF rod in critical areas, molded in to the monocoque. It is a time consuming construction method but actually makes a simpler model that you can reproduce.

    This way you have total control over the internal mounting points, access hatches, etc.

    I am considering such a method for quadrotor #4.

    I am sketching out quadrotor #2 now.

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