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Thread: Best way to connect to stepper motor

  1. #1
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    Default Best way to connect to stepper motor

    I have some stepper motors that i want to use in a project. They look a lot like this:
    steppermotorqh4-4276-011.jpg

    I have a feeling that they were ripped out of an old printer/plotter. What I am not sure, is how to handle the sprocket-like part on the shaft (don't know the real name for it, maybe cog belt gear?). I assume that it is pressed on, so there is no way to remove it, so do people just drill a hole into it for a homemade setscrew, or do you buy the belts somewhere? How should I best proceed?

  2. #2
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    Default Re: Best way to connect to stepper motor

    Quote Originally Posted by toozie21 View Post
    ... What I am not sure, is how to handle the sprocket-like part on the shaft (don't know the real name for it, maybe cog belt gear?). I assume that it is pressed on, so there is no way to remove it, so do people just drill a hole into it for a homemade setscrew, or do you buy the belts somewhere? How should I best proceed?
    The best way to remove a gear or pulley is to use a "wheel/gear puller" for press fitted items.
    This guy made his own; http://www.instructables.com/id/Chea...e-Gear-Puller/
    You can Google for more similar ideas.

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  4. #3
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    Default Re: Best way to connect to stepper motor

    Ah, OK, like you have to do with a pulley on an small engine (I was actually reading up on those last weekend). OK, that makes sense. What do you put on in its place?

  5. #4
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    Default Re: Best way to connect to stepper motor

    Quote Originally Posted by toozie21 View Post
    ... What do you put on in its place?
    That depends on what you use it for. It could be a gear, pulley, or an arm for linkage control, .... or a hand of a clock.

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