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  1. pztpenguin

    Bystar 4020 stainless problems

    Thx for the replies. Theres a gas pressure problem because it can't go above 14 to 15 bars with an internal stop error. I know the optics haven't been cleaned since I started 5 months ago. They say there going to get done when it slows down. We have an 4400w 4020 and it cuts .375 great.
  2. pztpenguin

    Bystar 4020 stainless problems

    Hi, New to the forums and also I'm mew to laser cutting. At my work we have a Bystar 4020 6000w the laser isn't to old "i can't remember the hours in up time", but I know it's 4 to 5 years old. We cut every thing from 16ga to 1" m.s. and 16ga to 5/8 304 & 316 stainless. The problem I'm having is...

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