Will a diode laser engrave STEEL? Aluminum? Brass?

We all know a diode laser can engrave stainless.
What about 4140? ... and brass? aluminum?
Timestamps:
00:00 The one and only 4 stroke laser engraver
00:53 Creality Falcon2
01:56 Basics first
06:30 The Dovetail Cutters are back!
08:56 Cutting silicon rubber
10:00 Marking Metals (4140, aluminum, brass)
13:58 Final thoughts
Creality Falcon2 22W: s.zbanx.com/r/ONX8RvP2EWkQ
Code: NEWFALCON
DTC link: store.creality.com/eu/product...
Code: FN1106B
Valentine's Day activities
Discount range 70$-500$
Time：1st-28th February
Code for 22W：VDFALCON
Code for 40W：VDFALCON9
Accessories:
Large honeycomb: s.zbanx.com/r/LeizCaOPtB82
Enclosure: s.zbanx.com/r/k36XTSvWI0VK
Rotary kit Pro: s.zbanx.com/r/daARrdXADLmp
#diy #laserengraving #CrealityFalcon2, #CrealityLaserEngraver, #22WFalcon2
Creality social media:
TH-cam： / channel
FB Group: / falconlaserengraver
Brilliance sprays:
Black Metal laser spray: amzn.to/42Vb8mQ
Black Aluminum Marking spray: amzn.to/42TeGpR
* note: the above links are affiliate links

[@user-bf3cr2tt9r]

Nice to see your video again! Hope to see more of it.

[@JoseLopez-vt5uo]

Amazing video, i really wanna see other proyect about it

[@nbrworks]

Thanks, I'm sure it will be featured in other projects!

[@EZ_shop]

Nice video

[@Omsip123]

Your videos are entertaining and informative, keep doing, I’m sure you soon will get many subs

[@nbrworks]

Thanks. Glad you liked it!

[@zhangfreya9817]

If it were cheaper I would definitely consider it. But thanks for sharing! Good video!

[@nbrworks]

Thanks!

[@JesseSchoch]

consider printing TPU for your way wipers

[@nbrworks]

Thanks Jesse, I might give it a go one day, but for another project 🙂 Thanks for the suggestion 👍

[@gordon6029]

Pretty sure all that spray is is developer for dye penetration testing.

[@mediaconsumer9483]

did they mean "Focus" Beam instead of Foucs Beam, on the safety warning

[@nbrworks]

Looks like it!