Laser etching dials.?

[macona]

If I remember right the Hardinge HLV-H's we had at work had some sort of white plastic that the increments were engraved in and then filled with black paint.

I have some of those lacquer sticks for markings. They work pretty well.

[Paul Alciatore]

I could be wrong, but I suspect the optics (lenses or mirrors) to go along with that diode array would cost more than the array itself. All of that light output must be focused on a single spot - or at least a large percentage of it. That is not a trivial task.

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You could do this with blue laser diodes too if you had a big enough diode array. But that would be one BIG array. I have cut copper with a green DPSS laser.

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[macona]

I could be wrong, but I suspect the optics (lenses or mirrors) to go along with that diode array would cost more than the array itself. All of that light output must be focused on a single spot - or at least a large percentage of it. That is not a trivial task.

Thats what the direct diode laser systems on the market do, arrays of diodes focus through a transform lens, through a dispersive optic and out an output coupler. They are doing it with IR but there is no reason you can do it with other wavelengths,.

[RSG]

I have a 30W fiber laser! Great tool for deep engraving and etching but unless you have a need for one on a regular bases they can be an expensive dust collector 😆