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Thread: PRT Alpha error on input 3 and 4

  1. #1
    Join Date
    Mar 2011
    Location
    Aurora, Indiana
    Posts
    17

    Default PRT Alpha error on input 3 and 4

    I was cutting a triangle out of 1/4" UHMW, at the corner of the long leg and the hypotenous, the up cut bit caused the material to lift and it caught in the dust boot. As the machine moved forward it bent the dust boot up and lifted the X-car off of the rails. Catastrophic indeed. It gouged the table 3/8". I have since got it back on the rails, plumbed the spindle and replaced the bit (did not appear damaged, decided to keep the collet). When I stopped the machine I hit the space bar then quit the program.

    Problem: Input 4 is flashing and input 3 has a vertical line in it.
    I have restarted the computer and the Shopbot at least 5 times.
    I have cycled the E stop. I have checked the connections to the computer.

  2. #2
    Join Date
    Dec 2007
    Posts
    2,383

    Default

    I would do a UR command

  3. #3
    Join Date
    Sep 2006
    Location
    Garland Tx
    Posts
    2,334

    Default

    Also, check to see if proximity sensors were damaged when the gantry came off the track…
    SG

  4. #4
    Join Date
    Nov 2012
    Location
    Lancashire, UK
    Posts
    66

    Default Suggestion

    Dear kworks

    After you have successfully sorted the issue with input switches. My advice would be to change the collet and collet nut. You can't see if they are damaged but keeping them could result in no-end of quality issues and problems.

    Sincerely and in good faith
    Martin

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