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drag knife cutting

Discussion in 'General Talk' started by Rickluau, Apr 29, 2014.

  1. Rickluau

    Rickluau New

    Apr 29, 2014
    Likes Received:
    I am building an OX to cut thick rubber backed fabric. I will be using an ultrasonic cutting knife.
    Would like to use the 3rd axis for turning the cutting head (tangential drag knife).
    Mach 3 does this. Are there any cheaper alternatives?
  2. Tweakie

    Tweakie OpenBuilds Team
    Staff Member Moderator Builder

    Jan 18, 2014
    Likes Received:
    Hi Rick,

    Mach3 can do this but it has problems with the tangential control with regard to complete circles and dependant on the toolpath created by the CAM software.
    There are work-arounds such as making the start point of each circle in the same direction or creating lead-in's (in the CAM software) with the same radius as the circle. Both these methods work but can be quite tiresome to do for every layout required.


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