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  1. #1

    HOW TO CHANGE THE SHAFT DIRECTION OF NTM SERIES MOTOR

    Can you say me how to change the shaft direction of a ntm series motors...as we get the shaft as a pusher in default :-)
    How to make the motor like the shaft that comes to other motors...

  2. #2
    With the ntm motors you can get an accessory's pack that adds a bolt on shaft to the rotor housing

  3. #3
    The problem is not regarding that....usually the motor defaultly comes as a motor that suits for a pusher model...but we cannot use it for a tractor model in that way

  4. #4
    The direction the motor turns depends on how it is connected to the ESC. If it is turning the wrong way, swap any two of the three connections between them and it will turn the other way.

  5. #5

    sorry if i was wrong gramatically wrong

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    Quote Originally Posted by Billchuck View Post
    The direction the motor turns depends on how it is connected to the ESC. If it is turning the wrong way, swap any two of the three connections between them and it will turn the other way.
    I have said that how change the shaft from front to back i.e for tractor one you can see the picture where it shows the motor default from factory and other one turnigy which is one i want like for ntm series motors....And also other picture shows the changed ntm motors. i would like to request flitetest guys to make up a video as a viewer response which would be very much use full
    Last edited by sai vikas; 12-06-2013 at 02:23 PM.

  6. #6
    Moderator Craftydan's Avatar
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    Sai,

    whetehr the prop is on the same side of the motor as the firewall or on the opposite side does not change the motor from a pusher to a tractor. That has more to do with what direction the prop is pointed and which way it's spinning than which side the shaft comes out of.

    While I can appriciate you wanting to move the protruding portion of the shaft from one side of the motor to the other, for most motors this is a difficult task. It usually involves a good vice/press and pin punch to press the shaft out of and back into it's berrings. After you've accomplished all that, sometimes you'll *still* fail because there aren't grooves on both sides for the retaining clips to be reinstalled after reversing -- You can't *always* reverse the shaft!

    So what *can* you do? Learn to work around it. This motor has an optional bolt-on adaptor (as seen in the second, third and fourth picture -- those aren't "swapped" shafts) that will work splendidly on a pusher or tractor mount, so long as you can allow the shaft to pass through the firewall without binding. if you can't pass the long shaft through, a dremel with a cutoff wheel will make the longer shaft into a short one.

    Again whether the motor is pushing or pulling (tractor) depends on which way the prop is pointing, and what direction it spins. You can always reverse the direction a brushless motor spins and flip the prop to trade between the air blowing toward or away from the motor.
    Last edited by Craftydan; 12-06-2013 at 06:03 PM.
    Crafty Dan
    -<-' ~~~
    __________________________________________________
    What goes up, must be smashed into little pieces (eventually)

  7. #7
    Quote Originally Posted by Craftydan View Post
    Sai,

    whetehr the prop is on the same side of the motor as the firewall or on the opposite side does not change the motor from a pusher to a tractor. That has more to do with what direction the prop is pointed and which way it's spinning than which side the shaft comes out of.

    While I can appriciate you wanting to move the protruding portion of the shaft from one side of the motor to the other, for most motors this is a difficult task. It usually involves a good vice/press and pin punch to press the shaft out of and back into it's berrings. After you've accomplished all that, sometimes you'll *still* fail because there aren't grooves on both sides for the retaining clips to be reinstalled after reversing -- You can't *always* reverse the shaft!

    So what *can* you do? Learn to work around it. This motor has an optional bolt-on adaptor (as seen in the second, third and fourth picture -- those aren't "swapped" shafts) that will work splendidly on a pusher or tractor mount, so long as you can allow the shaft to pass through the firewall without binding. if you can't pass the long shaft through, a dremel with a cutoff wheel will make the longer shaft into a short one.

    Again whether the motor is pushing or pulling (tractor) depends on which way the prop is pointing, and what direction it spins. You can always reverse the direction a brushless motor spins and flip the prop to trade between the air blowing toward or away from the motor.
    can u please make any video regarding the solution..
    ..It will be much better to watch than reading!
    Last edited by sai vikas; 12-07-2013 at 10:38 AM.

  8. #8
    To change from pusher to pull all you have to do is turn the prop upside down (180deg).
    It doesn't matter what end the shaft is mounted.
    If you want the ntm motor (top right photo) then purchase the accessory pack as well. The accessory pack adds the motor shaft (silver shaft that the prop is mounted to in top right photo).
    Hope this helps.
    If you tell me what ntm motor you are intersted in I can post link for parts to buy.

    Paul

  9. #9
    Moderator Craftydan's Avatar
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    Quote Originally Posted by sai vikas View Post
    can u please make any video regarding the solution..
    ..It will be much better to watch than reading!
    I'm sorry Sai, I don't make how-to videos. you'll have to read.

    If you're using this motor:

    http://www.hobbyking.com/hobbyking/s...00Kv_550W.html

    Get this adapter:

    http://www.hobbyking.com/hobbyking/s...sory_Pack.html

    The adapter bolts onto the bell of the motor (the part that spins).

    Mount the prop on the adapter, and either cut a hole in the firewall for the shaft, or carefully trim the shaft using a Dremel and cutoff wheel.
    Crafty Dan
    -<-' ~~~
    __________________________________________________
    What goes up, must be smashed into little pieces (eventually)

  10. #10
    Quote Originally Posted by vk2dxn View Post
    To change from pusher to pull all you have to do is turn the prop upside down (180deg).
    It doesn't matter what end the shaft is mounted.
    Nope. If you turn the prop over, you just get a less efficient prop pulling in the same direction. You have to get a reversed prop (a "pusher" prop) to get reverse thrust from the same installation. However, if you switch two wires (on a brushless motor) it will turn the opposite direction, meaning you can use a regular prop in a pusher configuration.

    The side of the motor you put the prop on does matter as well. If you turn the motor around so the other end faces forward (and don't change anything else) then the direction of rotation changes. You need to change the wiring or use a reversed prop to keep the same thrust direction.

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