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driverdan
on Feb 8, 2020
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Lasersaur – open-source laser cutter
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.
mdorazio
on Feb 8, 2020
[–]
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.
Consider applying for YC's Spring batch! Applications are open till Feb 11.
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You can get cheaper laser tubes but there is a difference between them.