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Thread: Newbie seeking help. (mini mill guidance)

  1. #1
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    Newbie seeking help. (mini mill guidance)

    I'm converting a HF mill mini to cnc.

    However I'm a complete newb when it comes to the electronics. I've tried to read some of the white papers, but honestly I'm completely lost.

    I need a step by step guide to what I need.

    I plan on using a nema 23 size steppers.

    I'd like to have minimal of 150oz, but would not be opposed to smaller. Assuming the drivers could handle the upgrade later.

    I'm not 100% sure if I should be uni or bipolar. I don't know the benefits or limitations of them.

    Cost is an issue, but not a terrible one. ((I'd like to have a full list of parts, so there are no "gotchas" later.))

    A decent feed rate would be nice, but this is for prototyping in aluminum.

    I'm fairly decent with a soldiering iron and can follow a wiring schematic. However a pretested board may be better for the initial run.

    So I need a driver board(s) with or without lpt breakout, board/motor wiring, power supply, motors?

    I'm slowly starting to get a grasp on what is needed/suggested, but any help would be great.

    Thanks,


  2. #2
    Site Owner CNCadmin's Avatar
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    Personally I think 150 direct drive is not enough for that mill, In my case I'm using 200+ geared 2:1 servos. I also converted everything to ball screw.
    Thank You,
    Paul G
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  3. #3
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    Hmm, I considered using a ratio to motor, and may end up that way.

    Right now, I'm just at the point where I'd like to see the mill do more than pick up dust.

    = )

    Currently looking at the Tamagawa 282 Oz Steppers off ebay, but in all honestly. I'm just wandering around blindly. (grins)


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