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A comment on Lasersaur – open-source laser cutter. Parent comment

Re:Lasersaur – open-source laser cutter by driverdan on Saturday February 08, 2020 @11:32AM (#22276567)
It is different by that many zeros. They require much tighter tolerances and higher quality materials. They're also not mass produced.

You can get cheaper laser tubes but there is a difference between them.

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Re:Lasersaur – open-source laser cutter by mdorazio on Saturday February 08, 2020 @12:15PM (#22276887)
That’s debatable. I had a laser cutter for a couple years and used cheap tubes off eBay with zero issues. Cutting power was probably less per watt than with an expensive tube and lifetime was lower, but at 1/4 the price it doesn’t really matter.
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