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Spare Carbon Tubing

Discussion in 'Inspire 1 Discussion' started by Simon Torkington, Apr 25, 2015.

  1. Simon Torkington

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    Hi all,

    Just had a little mishap with a door and broke the forward section of one of the carbon tubes that holds the motor.

    Is anyone aware of any spare parts available? preferably in the UK but happy to import from US if I need to.

    Cheers,

    Simon
     
    #1 Simon Torkington, Apr 25, 2015
    Last edited: Apr 26, 2015
  2. Tahoejmfc

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    Dont know of any, you will prolly need to get it shipped out to service asap
     
  3. Scotflieger

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  4. The Editor

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    At present these are not user replaceable parts. You will not be able to source these from anywhere as DJI do not even allow authorised dealers to do these types of repairs.
    One of the reasons is that the arm alignment requires an accurate jig to set up the off-set angle.
     
  5. Simon Torkington

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    Oh. That's bad. Jobs lined up. Any thoughts on how long this will take DJI's European service centre to repair?
     
  6. The Editor

    The Editor Moderator
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    I guess it depends on what they have backed up.
    Give them a call tomorrow......they DO actually answer the phone and can be quite helpful.
     
    Cjvw likes this.
  7. Simon Torkington

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    Thank you. I have just emailed them and will follow up with a call in the morning. Very frustrating. It was a stupid little accident in which the Inspire only fell a metre or so. All my fault. I was practicing an interior to exterior shot which I want to do for a client. Might re-think that one.
     
  8. Stu Hall

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    Hi Simon, I had similar problem a few months ago, I broke the RH front arm, internal accident. hit the wall and she dropped onto the corner, broke the carbon fibre tube quite cleanly and two props too. No other damage, so I did a temp repair, external splint, made from a large clear nylon hypodermic syringe tube, I cut a slit long ways and I cut the end cap/tube off, it was undersize and quite grippy/springy, so it held ok, but to be sure I used a couple of lightweight jubilee type clamps, the test flight was as normal, level and stable, and the repair was hardly noticeable, so I then purchased a piece of carbon fibre the exact size to fit internally, it meant taking the motor off and undoing a few wires, only one wire (gps signal) needed unsoldering, I fixed the new tube in with epoxy adhesive (very small amount) and assembled. Perfect repair, only noticeable on very close scrutiny, I know I will maybe void warranty, and my mishap was pilot error, so I think I must have saved £400 and not lost my Bad Bird! That was a few months ago, she till behaves herself, and so do I, nothing teaches like a mishap, I've got some CF Tube left over, who knows I may need more one day ........regards stu. Lincoln
     
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  9. Simon Torkington

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    Stu...could you tell me where you bought the carbon tube and what size?

    DJI have just said they can repair it in 10 working days from it arriving in Germany. Every bone in my body tells me to send it but I fear 10 days could grow and grow and grow and I have jobs lined up.

    I'm going to have a closer look at the break. It's right next to where the tube enters the lift arm so I worry the damage could extend inside that area. The arm has not actually snapped in two - it's more a fracture than a clean break. If I could be confident there was no damage inside I might just do an external repair using the kind of kit the Volvo Ocean Race guys use for patching up their carbon yachts.

    In the end I will only consider that if I can be confident I can achieve a 100% safe repair.

    If not - it's off to Deutschland.
     
  10. Stu Hall

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    Simon, Sorry for the delay in my reply.
    C F Tube came from : http://stores.ebay.co.uk/HaoZhong-Carbon-Fiber-Tube
    Two pieces supplied approx £18, only half of one piece was used on my repair, if your stuck I can send the second full piece to you. Stu
     
  11. SiFlyGuy

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    Hi Stu, Thanks for your kind offer. I decided on balance to ship the Inspire to Germany. The break was right where the tube enters the lifting mechanism so quite a complex repair. I would have been constantly worried that something was going to break mid-flight and put the whole aircraft and people on the ground at risk. Always safety first. If the break had been further along I would have fixed it myself. Thanks again.
     
  12. Simon Torkington

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    My Inspire arrived in Germany on May 4th. I spoke to them yesterday and was told nobody had even looked at it yet. :-(
     
  13. timgaunt

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    Hi Stu,

    Sadly I've done similar to Simon and have bent the front right carbon fibre tubing. I've patched it for the time being but think it would be best to repair it properly. Could you tell me the dimensions of the tubing please? Was it simple to replace? I'm happy enough with a little soldering but not sure about cutting the tubing etc.

    Thanks,

    Tim
     
  14. Stu Hall

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    Hi Tim, if you send me a picture of the broken leg I will give you my honest opinion, the wiring is very simple to disconnect, just one fine wore that is a solder job, where are you located? I have a spare piece of CF you are welcome to. Regards Stuart
     
  15. timgaunt

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    Not the best shot but here you go, I've wrapped it in tap at the moment which seems to give it enough rigidity although I think the gain needs to be recalibraded as it seems to slowly shift to one side (I'm not sure if this is normal -or consistently to the same side yet).

    [​IMG]

    Ah that doesn't sound too bad, I'm based in Herefordshire about 5 minutes from the end of the M50.

    That's very kind of you if you don't mind losing a spare, I'm more than happy to pay for it/postage etc.

    Tim
     
  16. Stu Hall

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    Hi Tim, you're right, it's not the best shot, I was hoping to see the fracture/break style, but the tape is not allowing this view, the break in my tube was very clean, and it had an angle that allowed the detached arm to fit back only in the exact same position as original, like a one way key, so the alignment jig was not as important, coupled with a very rigid and perfect tempory repair, several test flights to see how the inspire behaved, I was confident it was aligned as before, the worrying part for your inspire is you mention side to side sway/shift, if your temp repair is not rigid, like it used to be, that may be why it sways, but without seeing the break and knowing its rigidity I can't advise, but due to the sway it is very likely you do need professional help, you really can't compromise on safety if you have different flight characteristics from before the break. But it's your inspire, and you are ultimately responsible for it, if you want the CF tube I need your details, at first I need your direct email, then you can let me have your postal info privately, we have some internet police on here to consider. Good luck with it and Best regards. Stu
     
  17. Stu Hall

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    Tim, just a thought, I had two 1mtr pieces of CF from Japan, and I used over half of one piece for my repair, if you want to buy the unused I meter length and pay half of the £24 cost ? That maybe better as the part piece I have left is a lot less than half of the full length.
    Stu
     
  18. Stu Hall

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    Hi AGAIN Tim, I have just rechecked the price, it's still £18 for two 2mtr lengths plus £6 postage from Japan. Stuart
     
  19. World Media

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    I had a similar break after another flyaway, I was able to repair mine for under $10 using some 19mm water pipe, cut with a channel along the length and sanded to just insert INSIDE the broken tubes.
    The channel allowed for the cables to go inside the new sleeving and each end was epoxied in place.
    The repair is almost not noticeable and the alignment of the leg was easy as i referenced the broken carbon and measured the angle against the other three legs. Took about half an hour.
     
  20. SultanGris

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    how exactly were you able to use a different carbon tube for the fix? a smaller one that fits inside or over top of the original?