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fusion post question

Discussion in 'CAM' started by baum, Aug 12, 2020.

  1. baum

    baum New
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    fusion with the latest open builds post from @David the swarfer Is there a settings that could change the accuracy of the cuts? I was using an older post of his from about january and the cuts were accurate. I had to uninstall and reinstall fusion and i used the new version and my cuts dont seem to be as accurate. like i cut a 21" circle previously and it would measure 21" I do it now and in the x travel its a little undersized.

    any ideas?
     
  2. JustinTime

    JustinTime Veteran
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    Is it possible that you didn't set up the bit diameter correctly?
     
  3. baum

    baum New
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    My machine is using 1605 ball screws so in theory as long as my gbrl settings are the same the travel should be the same. If i measure in the y direction its right on, in the x its off by about 1/64 or so.

    to the eye this project is ok but to my engineering side of me i want it to be on.

    tool dia is all good
     
  4. JustinTime

    JustinTime Veteran
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    That sounds to me like your x axis is not calibrated properly. It's off by a frog's hair. Recalibrate the x axis and it should be OK then.
     
    David the swarfer likes this.
  5. David the swarfer

    David the swarfer OpenBuilds Team
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    nothing has changed in the post that will change accuracy
     
    Peter Van Der Walt likes this.
  6. David the swarfer

    David the swarfer OpenBuilds Team
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    this is backlash in X. check all wheels.
     
    Peter Van Der Walt likes this.

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