Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

New P3 Pro body shell from Amazon / Rotor Logic is complete crap. Where can I get an original one?

Discussion in 'Pro/Adv Discussion' started by Richard Gozinya, Aug 24, 2016.

  1. Richard Gozinya

    Joined:
    Mar 11, 2016
    Messages:
    207
    Likes Received:
    96
    Location:
    Lawrence, Kansas USA
  2. msinger

    Approved Vendor

    Joined:
    Oct 30, 2014
    Messages:
    18,917
    Likes Received:
    5,571
    Location:
    US
    You could try to track down the old version of the shell. However, it'll probably be tough to find and it seems to be more susceptible to cracking (hence the redesigned shell).
     
    mikesmiley likes this.
  3. Richard Gozinya

    Joined:
    Mar 11, 2016
    Messages:
    207
    Likes Received:
    96
    Location:
    Lawrence, Kansas USA
    I never had ANY problems with mine cracking until it hit pavement from a dead drop of aprrox 100 feet. My original shell was fairly robust. The plastic in this NEW shell is so flimsy I'm scared to continue assembly. It literally pales in comparison to my original. There must be at least 3 versions of this shell if this is the NEWEST "improved" version. What a load of crap.
     
    #3 Richard Gozinya, Aug 24, 2016
    Last edited: Aug 24, 2016
  4. AlexSP

    Joined:
    Oct 30, 2015
    Messages:
    295
    Likes Received:
    237
    That's the original DJI shell. The exact same shell of your P3 - every P3 in fact - with perhaps only a few small modifications in the sub-motor design. But it's the same plastic, same design, same spec, same everything. It just feels more solid when everything is assembled, but it's just an impression. I've been dealing with these shells for a while and in all honesty never came across two very different ones in regards to the specs you mentioned.
     
    Digdat0, N017RW and Meta4 like this.
  5. fred_lefevre

    Joined:
    Mar 14, 2016
    Messages:
    45
    Likes Received:
    3
    Maybe so - but I replaced the top of the shell two weeks ago with the rotor logic shell. 5 flights since then and I have a crack by the motor on one of the arms. No crash, no hard landing - no nothing. I did take the screws out last night - did not notice the crack (the two screws on each arm that go into a metal fitting - to add blue lactite which I didn't have when I assembled it. I did not over torque any screw but here I am. I think I'll use some bondic on it for now.
     
  6. montelatici

    Joined:
    Aug 26, 2016
    Messages:
    69
    Likes Received:
    22
    LOCTITE® THREADLOCKER BLUE 242®
    NUT AND BOLT LOCKER

    Not Recommended For
    • Use on plastic parts, particularly thermoplastic materials where stress cracking of the plastic could result
     
  7. fred_lefevre

    Joined:
    Mar 14, 2016
    Messages:
    45
    Likes Received:
    3
    That is not a news flash - I am well aware - these screws go into metal fittings and if you look at them when you unscrew them you will find they had blue loctite on them.
     
  8. montelatici

    Joined:
    Aug 26, 2016
    Messages:
    69
    Likes Received:
    22
    Doesn't matter if they go into metal fittings. It's the oxidizers that permeate surrounding plastic. The cyanoacrylate used in the Loctite is stabilized by peroxide or some other type of chemical that forms free radicals. Once the surrounding oxygen in the air is absent (anaerobic), the metal ions react with the free radical producer giving the cyanoacrylates room to attach to each other and polymerize. This is how the adhesive bonds the two metal parts.

    The free radicals would also attack nearby plastic material causing imbrittlement as the polymer chains are breaking down.

    I was just trying to provide some friendly advice.
     
    BigAl07, mikesmiley and Meta4 like this.
  9. fred_lefevre

    Joined:
    Mar 14, 2016
    Messages:
    45
    Likes Received:
    3
    Yeah and I didn't meant to be snarky - sorry. But do you think it could have had caused a crack within just 12 or 14 hours?

    Thanks
     
  10. montelatici

    Joined:
    Aug 26, 2016
    Messages:
    69
    Likes Received:
    22
    Doesn't take long if you put a lot of the stuff on and it leaks all around and there is stress on the plastic.
     
  11. Mocho

    Joined:
    Jun 16, 2016
    Messages:
    315
    Likes Received:
    64
    Location:
    Alberta, Canada
    YES. Sorry to say it breaks down the plastic in minutes :(
     
  12. maxwell smart

    Joined:
    Feb 24, 2015
    Messages:
    851
    Likes Received:
    315
    Location:
    Texas
    I have never had a screw fall out or come loss on a P3. Why people use locktight on there drone is beyond reason.
     
  13. Mocho

    Joined:
    Jun 16, 2016
    Messages:
    315
    Likes Received:
    64
    Location:
    Alberta, Canada
    I've not had any screws come lose either.

    However I do understand why people want to ensure their screws don't loosen off !
    Until I inadvertently saw what Loctite can do to certain plastics I had no idea as to its destructive nature. Luckily it was a $10 Buggy part that I got some Loctite on and the area literally crumbed before my eyes!
    There are products designed specifically for metal screws in plastic.
     
  14. Lucky 777

    Joined:
    Jul 27, 2016
    Messages:
    42
    Likes Received:
    13
    Location:
    Carlisle PA
    Before loctite, many gunsmiths used linseed oil. Beeswax is another option.


    Sent from my iPad using PhantomPilots
     
  15. fred_lefevre

    Joined:
    Mar 14, 2016
    Messages:
    45
    Likes Received:
    3
    Thanks all - live and learn.
     
  16. HWCM

    Joined:
    May 2, 2016
    Messages:
    657
    Likes Received:
    138
    Fingernail polish works great.
     
    AlexSP and fred_lefevre like this.
  17. montelatici

    Joined:
    Aug 26, 2016
    Messages:
    69
    Likes Received:
    22
    Yes, fingernail polish works.
     
    fred_lefevre likes this.
  18. AlexSP

    Joined:
    Oct 30, 2015
    Messages:
    295
    Likes Received:
    237
    I'm not disputing the occurrence of cracks, I know it happens, it's been widely reported, documented and accepted. But the fact is that Rotor Logic only sells DJI original shells, there's no "Rotor Logic brand P3 shells" or any other P3-like shell made by third parties for that matter. Only DJI-made shells, so if any of those are cracking they're suffering the exact same problem as every other OEM DJI shell that has cracked, nothing new here. Even though some may crack (like OP and others), the specs are the same because they're made by DJI.
     
  19. fred_lefevre

    Joined:
    Mar 14, 2016
    Messages:
    45
    Likes Received:
    3
    Didn't they though - at some point change the shells to have greater structural integrity? I'm wondering if they are working through a supply of the original shells.
     
  20. msinger

    Approved Vendor

    Joined:
    Oct 30, 2014
    Messages:
    18,917
    Likes Received:
    5,571
    Location:
    US
    Check out this thread to see photos of the changes they made.