It seems we all pretty much have the chinese K40 or close variants of

Lasers
,
1

It seems we all pretty much have the chinese K40 or close variants of it. I am putting together a spreadsheet of power settings to keep track of what works and what doesnt work. To properly cut plexiglass I went through a good amount of it and made a nice little stack of scrap material before getting it right.

I will post it when I get some good content on it, right now I only have 3 or 4 entries… Meanwhile, if anyone has anything they would like to contribute to it, that would be great!

Essentially it has: (for power, I read it in volts since I put a volt meter on mine across the POT)

1/8" Plexi Speed 10mm/sec Power .61v Cut
1/4" Maple Speed 200 Power .83v Engrave

etc etc etc.
Bob

2

bob, settings are so dependant of

  1. your alignement settings
  2. your consumable (lens, mirrors)
  3. how old is your tube (wearing)

please note it’s barely 2 k40 the same.
you will find out yourself if you change your tube.
(2 supposed 40W tube are not the same)

3

That figures!

4

Having a reference point to start from is convenient, even if it won’t be completely accurate for other people’s machines

5

Yeah, being able to reference different materials comparatively is likely to be helpful, just as long as people know these are just estimates; it’s useful to know that material X is going to need Y% more power than material Z to cut through.