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  1. #1
    Join Date
    Aug 2004
    Posts
    210

    How to stop rounded corners in Mach 4 ???

    Hi Everyone

    I am having a hard time here, my projected tool patch has sharp corners but when i run the program it rounds them off.
    I changed Motion Mode to Exact Stop from Constant Velocity, it fixed the problem but the machine now runs super slow in the
    radius or rounder parts of the program.


    Thanks in advance
    Biggs
    Attached Thumbnails Attached Thumbnails screen.jpg  

  2. #2
    Join Date
    Mar 2003
    Posts
    35538

    Re: How to stop rounded corners in Mach 4 ???

    1) Increase acceleration.
    2) Create toolpaths that "roll around" the corner, leaving your part square.
    3) I think there's a CV wizard to setup the CV controls.
    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
    Join Date
    Nov 2013
    Posts
    4361

    Re: How to stop rounded corners in Mach 4 ???

    Hi,
    the rule is that you ensure that your machine is tuned for the highest reliable (no lost steps) acceleration consistent with the rigidity of
    the machine. Best acceleration allow the spindle to follow the tool path more closely.

    Craig

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