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IndustryArena Forum > CNC Electronics > Hobbycnc (Products) > What speeds are you getting with your EZ driver board?
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  1. #1
    Join Date
    Nov 2005
    Posts
    8

    What speeds are you getting with your EZ driver board?

    I'm getting about 25 inches per minute with 5/16-18 screws, with 200 step/rev Nema 23 motors at 36 volts?

  2. #2
    Join Date
    Mar 2003
    Posts
    35538

    Re: What speeds are you getting with your EZ driver board?

    What size motors?
    If I recall, when a lot of people were building Joes 2006 machine, they were getting about 100ipm with 1/2-10 single start acme, and 300oz motors. That's about 1000 rpm at the motor.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  3. #3

    Re: What speeds are you getting with your EZ driver board?

    I have
    - HobbyCNC Pro (same driver chips).
    - 1/4-20 drive screw
    - 36V unregulated linear power supply
    - 300oz in motors
    - 1/2 microstepping

    I can push it to 40ipm, but that's pretty much it. For milling, I will go to 38 ipm max, typically 30 - 35 (material dependent, of course)
    I only have a home-made DIY hobby machine, and for a 20 thread-per-inch drive screw, 38 ipm is pretty respectable.
    You can do the math to figure out the steps per second.

    BrianV
    WoodWorkerB
    HobbyCNC.com, WoodWorkerB.com

  4. #4
    Join Date
    Sep 2006
    Posts
    245

    Re: What speeds are you getting with your EZ driver board?

    I have a HobbyCNC Pro and a 48V power supply. I forget what the microstepping is set to, but doubt that it would limit the max speed as long as the PC can keep up. I am using a 10 year old XP computer with a parallel port.

    My original router build had 10TPI ACME screws driven by 425oz motors. I could sometimes get 60ipm and would typically cut at 30-40ipm. Every once in a while it will stall and ruin the job.

    I switched to Ebay rolled ballscrews with 0.5cm threads, so effectively 5.08TPI. I could easily get over 100ipm and never felt the need to check the maximum speed. I usually cut at 60ipm and have never stalled the motors.

    Steve

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