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Thread: 150 w RECI LASER TUBE burns a circle not a dot

  1. #1

    150 w RECI LASER TUBE burns a circle not a dot

    Hi there,
    It hasn't engraved right for a week. So i went to realign it. I taped the second mirror, nothing was visible on the tape. So i taped the first mirror, this is what i get.
    what do you think the issue is?
    Ps: When i first got it, it burned a hole out of the tape and cardboard.
    Thank you.
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