Hi,
i'm finally getting ready to try my first laser builts. I have two different lasers, a blue 405 nm one and a red 650nm one from an old DVD burner.
I drive the blue one at ~80 mA and the red one at ~170mA.
So far i am able to cut various papers, (even white ones) and mark wood and other things. Judging by cutting power, it seems to me that the red one is stronger than the blue one.
However what i'm really interested in, is removing paint from a copper clad board. It is only thin layer of copper 35um (typical homemade circuit board) but the heattransfer might be a problem. I don't really care about the color, but i suppose black would be easiest.
So far i have tried various flat black paints from our local hobby store, as well as a couple of black permanent markers. I manage to mark the paint, but it only burns the very top layer, normally i can rub the mark of with my finger.
Do you have any suggestions for a good paint to try? I'm guessing that the hobby store paint is to thick, while the permanent markers are to shiny.
Or do you think getting a 500mW 405nm diode would be enough to remove the paint?
Bye,
NsN
i'm finally getting ready to try my first laser builts. I have two different lasers, a blue 405 nm one and a red 650nm one from an old DVD burner.
I drive the blue one at ~80 mA and the red one at ~170mA.
So far i am able to cut various papers, (even white ones) and mark wood and other things. Judging by cutting power, it seems to me that the red one is stronger than the blue one.
However what i'm really interested in, is removing paint from a copper clad board. It is only thin layer of copper 35um (typical homemade circuit board) but the heattransfer might be a problem. I don't really care about the color, but i suppose black would be easiest.
So far i have tried various flat black paints from our local hobby store, as well as a couple of black permanent markers. I manage to mark the paint, but it only burns the very top layer, normally i can rub the mark of with my finger.
Do you have any suggestions for a good paint to try? I'm guessing that the hobby store paint is to thick, while the permanent markers are to shiny.
Or do you think getting a 500mW 405nm diode would be enough to remove the paint?
Bye,
NsN