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IndustryArena Forum > Mechanical Engineering > Mechanical Calculations/Engineering Design > Calculating max acceleration of z based on servo torque

Thread: Calculating max acceleration of z based on servo torque

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  1. 01-20-2021, 08:31 PM #1
    QuinnSjoblom
    QuinnSjoblom is offline Registered
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    Calculating max acceleration of z based on servo torque

    Upgrading my z axis to servo since it just gained a lot of weight with the new spindle setup. Z axis is roughly 70lb, driven by a 5mm pitch screw. Im wondering if a 400watt servo is going to give me the rapids and acceleration i want. I'd like to run 20meter/minute which is 4k rpm at the servo. The 400watt dmm servo has 1.27nm continuous, 3.82nm peak, all the way from zero up to just about the 4k rpm i need. Im assuming peak number can be used. How quickly should i be able to accelerate the z axis upward with 3.82nm of torque on the ballscrew?
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  2. 01-20-2021, 09:21 PM #2
    pippin88
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    Re: Calculating max acceleration of z based on servo torque

    There are a number of servo sizing calculators available which will give you a good answer.

    Sigma have one.

    Kollmorgen. https://www.kollmorgen.com/en-us/ser...eering-online/
    7xCNC.com - CNC info for the minilathe (7x10, 7x12, 7x14, 7x16)
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  3. 01-20-2021, 11:24 PM #3
    QuinnSjoblom
    QuinnSjoblom is offline Registered
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    Re: Calculating max acceleration of z based on servo torque

    Cool, I'll check it out. Most likely go with 400watt, dmm rep is telling me that it should be more than plenty.
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