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Show"N"Tell ( What you have made with your CNC machine.) / Re: My first attempts at laser engraving.
« on: May 21, 2009, 03:20:52 AM »
OK Chris, I see the application - brilliant idea. If you use modulation to control the laser (0 to 15kHz say) you will be able to have full command over the amount of radiated power from the laser for any feed rate that you choose. I have not seen modulation units for sale but it would be relatively easy to construct, I think, using a 555 timer or the like to create a variable PRF of a fixed width pulse. I will give this more thought and report back.
Tweakie.
Tweakie.