Keith Winter
01-22-2016, 1:00 PM
Hi Guys,
I'm hoping one of you on here will be willing to help me out. When I try to cut and engrave on birch wood, my 130w chinese laser (EFR ZN-1650 tube) is blowing away the wood. It's very very dark...too dark, almost ashy even when I turn it down to 16% power (any lower and it doesn't seem to fire) 0.07 interval at 600 mm/s. If I speed it up to 800 mm/s the charring is fixed but then the quality suffers. Also it seems to have tiny lines in the engraving.
I've always read 80w-100w is best for engraving. Why I'm not 100% sure but I imagine it has to do with the too dark almost charring look I'm getting at 130w. What I'm wondering is if one of you guys with an 80w or 100w chinese laser would be willing to try 3-4 engraving tests on the same wood (I'll mail it to you) and then send me back the engraved sample so I can see if an 80w will give me a better looking engraving and avoid the really dark burned look, before I rush out and spend $$$ on a 80w reci tube and new lower power supply. I'll be happy to reimburse you for all time and costs, anyone willing to help out a fellow engraver?
I'm hoping one of you on here will be willing to help me out. When I try to cut and engrave on birch wood, my 130w chinese laser (EFR ZN-1650 tube) is blowing away the wood. It's very very dark...too dark, almost ashy even when I turn it down to 16% power (any lower and it doesn't seem to fire) 0.07 interval at 600 mm/s. If I speed it up to 800 mm/s the charring is fixed but then the quality suffers. Also it seems to have tiny lines in the engraving.
I've always read 80w-100w is best for engraving. Why I'm not 100% sure but I imagine it has to do with the too dark almost charring look I'm getting at 130w. What I'm wondering is if one of you guys with an 80w or 100w chinese laser would be willing to try 3-4 engraving tests on the same wood (I'll mail it to you) and then send me back the engraved sample so I can see if an 80w will give me a better looking engraving and avoid the really dark burned look, before I rush out and spend $$$ on a 80w reci tube and new lower power supply. I'll be happy to reimburse you for all time and costs, anyone willing to help out a fellow engraver?