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Thread: What causes this?

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  1. 06-22-2012, 11:58 PM #1
    NorthridgeFab
    NorthridgeFab is offline Registered
    Join Date
    Jan 2011
    Posts
    62

    What causes this?

    What causes these cut marks on the bottom of the cut? I only have this issue with 3/8 and thicker.

    I'm thinking the water table maybe causing the arc to bounce around. But I do not see other people with this issue that have water tables.
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