Retrofit Mill - Stepmotor 86J18156EC-1000 + 2HSS86H


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Thread: Retrofit Mill - Stepmotor 86J18156EC-1000 + 2HSS86H

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    Arrow Retrofit Mill - Stepmotor 86J18156EC-1000 + 2HSS86H

    Hello everybody,
    how are you?

    I'm retrofiting a Mill.
    I have changed the original screws [22mm or 7/8], and put a ballscrew of 25mm.

    About the Stepmotor, I take a Easy Servo: 86J18156EC-1000 + 2HSS86H

    It's a Nema 34 of 8N.m using a closed loop system. [Some people says it's a 12N.m]
    My ballscrew is a 5mm per revolution.

    I have connected the motor to the ballscrew using a 3:1 pulley as the picures bellow.

    I have no idea how much torque I need to move my axis X and Y... so I did it using a 3:1 ratio. Have no idea how much RPM the stepmotor gets.
    To do the Z axis I will use a 2 systems os 3:1 ratio doing a 9:1 ratio. My friend told me to drill, it needs too much torque, so I should use a great pulley ratio.
    PS: at Z axis I will use a heavy weight behind the Z column to take off Z axis weight.

    My doubt is: 3:1 ratio for X and Y sounds good? How much RPM this stepmotor gets travelling my table? Anyone uses this stepmotor?

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Retrofit Mill - Stepmotor 86J18156EC-1000 + 2HSS86H

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