New Prop Question

Posted by Tom Boyd on March 15, 2014 at 12:57pm

Got my Y6 today.  Made it about to step 3 before my first stupid question.

Ok, step 2 I guess.

Attach propellers.  Remove the rings from the propeller packages.  Select the ring with the smaller internal diameter, and insert into the back of the propeller hub.

Done.

Remove the nuts ........... and add propellers.

HERE IS THE PROBLEM.

The propeller will not go on the shaft.  If I take the "ring" out it will screw onto the shaft, but not go on beyond the threaded portion.

What am I doing wrong?

Thanks.

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Replies

  • Tom Boyd March 15, 2014 at 3:25pm

    So I took a round file and filed them down just a bit to they fit on, but snuggly.  Was that bad?

    • Nigel Brown > Tom Boyd March 15, 2014 at 4:38pm

      You will definitely need to balance your props.  Even filing the smallest of plastic from a prop hub will unbalance the prop.

      Also; since the filing will have changed the hub - rather than the prop blade, you will need to take that into account when you are balancing.  You will need to add/reduce weight to the hub rather than the blades.  Look up prop balancing on youtube. there is some good stuff there that includes how an unbalanced hub can be diagnosed and rectified. 

      The APM props from 3DR (I gather that is what you are using) are pretty precise. However, I always find that I am adding tape to the blade or glue to the hub to get them balanced to my liking.

      Good luck 

  • Nigel Brown March 15, 2014 at 3:15pm

    Hi Tom

    The thread is very tight.

    You can screw on by hand as far as it will go, then use the nut (and I use an internal star washer) to tighten the rest of the way.

    A tight fit is a good fit, but I strongly suggest you balance your props before attaching to the motor as they will not come off easily.

    Regards

  • T3
    Richard Boyhan March 15, 2014 at 2:54pm
    The adaptor needs to be tight. Try to thread the prop and spacer onto the shaft by hand until you can get the nut on.
  • Brendan22 March 15, 2014 at 1:37pm

    With some motors/props I've had to run the appropriate sized drill bit through the adapter ring.  It is easier to do before you break it out of it's moulding.  Either way it has to be done very carefully - try just turning the drill by hand.

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