HELP installing props

Hey,

 

I have these motors  http://store.jdrones.com/product_p/ac2836358.htm

with these props  http://store.jdrones.com/product_p/ac1245bl.htm

 

i've read the instructions on props install,

but the washer/spacer they put there inside the prop (seems like the 2nd biggest of the set) doesnt even fit the threaded shaft.

http://diydrones.com/forum/topics/propeller-install-notes

 

the problem as described in the following pictures....

please advise !

 

 

3690863315?profile=original

 

3690863148?profile=original

 

 

 

 

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Replies

  • OK, i see it happened to more people, using the same motors and props from jDrones ??

     

    the reamer i saw had 6mm, 7mm, 8mm and 10mm.

     

    I just measured precisely the elements:

    threaded shaft: 6.1mm

    thicker part of the shaft - not threaded, seen on the second pic of the post :6.3mm

    prop very inner hole: 6.17mm

     

    from the measuring i learn that this thicker shaft is only 0.13mm thicker than the prop inner size,

    that should easily fit with the prop being plastic.

     

    i tried to push it hard on the shaft exactly like the second picture on the post, without the bottom aluminum 'base' locking part (just to see if it would go over the thicker part, and after applying some force it did.

    i believe this needed force would be applied naturally when locking the prop hard with the spinner/locking part.

    so problem solved.

     

    the thing is that this is not using a ring.

    the biggest ring has inner diameter of 7.95mm, the next one has of 5.95mm

    ideally i should have a ring that is slightly bigger inner diameter than the prop one, 6.17mm up to the thicker shaft dia. 6.3mm.

    i can drill the 5.95mm or any smaller ring to become 6.3mm, but the reamer doesn't have 6.3mm, only 6mm....

     

    now, if the balancing/angle setting of the prop is done by the two aluminum bases of the two parts between which the prop is locked, i probably don't have to worry too much because it will ensure being parallel and at right angle....

  • I had the same issue. I didn't want to wait, so I bought one at the local hobby shop for 12 bucks.

    Just be sure to get a metric one. They have inch ones for older gas engine shafts.
  • Did you insert the best fitting plastic ring adapter then use a Metric prop reamer to cut the hole to the proper size?

     

    GPMQ5007.jpg

     

  • read your linked thread again, there is an aluminium piece that fits right on the shaft
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