First time user with a home made machine using a 80w fixed diode laser with air assist (GBRL).
I will use 3mm playwood, what speed mm/min should I use for Cutting, Fill and Image!
Given that you’re running a homebrew machine with a powerful diode, you must determine the correct speeds and powers using the Material Test tool.
Start with cut settings: run an absurdly large speed range, perhaps 100 mm/s up through half of whatever you’ve set for the maximum speed on the XY axes, and run the power from 5% to 80%. Most of those little squares will be overcooked, but then you’ll have an idea of where the sweet spot lies and can select better values.
The initial results will also set reasonable ranges for fill scans, perhaps starting the power at 1% and working up to half the power that cut completely through the material, with speeds on the upper end of the range you tried with cutting.
It’s very much an experimental process, but it doesn’t take very long and gives you a much better feel for the process on your hardware.
Good hunting!
What 80W diode module are you using?
Im using this Laser
I’m not sure what to make of this wording.
Effect output power: 80W/40W
Actual power:10W~11W/5.5W-6.5W
Don’t ask me, Im a beginner, maybe someone else can?
That 80W has to be input power… might be close for a Chinese translation… 
By the way I tried cutting through 3mm plywood today using 120mm/min at 100% power.
But it still didn’t cut through all the time, it looks like I have to run 2 passes.
So I don’t know what Im doing wrong, because it should manage this in one cut.
Yes I think its 80w input and 10w output.
Do a ramp test and ensure you are focused properly… the factory spacers and other items are not always correct.
A lasers power is really only useful once it’s gone through the lens… so if it’s out of focus, more power across a larger area.
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