[Hillcraft]

We manufacture models trains and we currently have our 0.3mm brass etched. The brass is either etched to 0.15mm or etched right through.

Would I be able to do this using a 70w laser?
How would I stop the laser from reflecting off the metal?
if I can't do it using brass could you suggest a laserable material with similar thickness and bending characteristics as brass?

[Tweakie]

Hillcraft,

You will not be able to do this with 70 Watts at the wavelength of the CO2 laser.
Brass can be 'marked' using 'thermark' or similar product but not etched. I think the brass is just too good a reflector.

Tweakie.

[Hillcraft]

What other material could I use that is 0.3mm thick, can be engraved to 0.15mm and will not break if folded along an engraved line?

[epilotdk]

No metals would fit those requirements. You get a more precise result with etching anyway.