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Show"N"Tell ( What you have made with your CNC machine.) / Re: My first attempts at laser engraving.
« on: May 19, 2009, 07:38:27 AM »
Chris - In the process of experimentation I have concluded that a shutter system (to turn the laser on and off) is preferable to using the modulation input (at TTL levels). This enables the laser diode to be operated by a completely isolated constant current source and eliminates any possibility of voltage spikes from the machine or computer causing any damage to the diode. I have detailed what I have done so far on my website and the link is below. I will include the shutter details when I have time. Good luck and I look forward to seeing your results.
http://www.cooperman.talktalk.net/index_files/Page4549.htm
Tweakie.
btw. thanx for the links Martin.
http://www.cooperman.talktalk.net/index_files/Page4549.htm
Tweakie.
btw. thanx for the links Martin.