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Old 04-13-2011, 12:48 AM #1
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Default Laser Projector Project Help

So taking the advice of Ash in a thread I made a few weeks ago, I'm going to post a few pictures of the internals of a current laser I have. Hopefully you guys can give me a hand figuring some things out. Pictured below is Scorpion LGX Laser opened up. I originally wanted to flat out replace the diode with a violet one, but now thing that it might be better to keep the mw green diode and have the violet 80mw in there as well. I found that shining the violet laser into the second mirror at a perpendicular angle produced the effect right next to the green effect. So now of course, the inevitable stream of questions, I apologize in advance for the volume, I couldn't fin much info on the laser itself and have no background in electronics:

The website for the new diode says it operates at 9V and 120mah.

1. What are these various boards/parts we're looking at below?

2. Should I use a separate power source for the violet laser, or can I some how solder it to the current one and still have adequate power?

3. Will a need a heatsink for the new laser or another fan in addition to the current one?

4. Should I move the whole unit into a new housing?

5. Would it be difficult to swap out the the factory diode the future?

6. Is this an inadequate diode for this task (I kind of bought it on a whim)

So without further delay, the pictures:
Let me know if you need other parts photographed.


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Old 04-13-2011, 01:02 AM #2
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Default Re: Laser Projector Project Help

The second picture is the main board. The third picture is the laser driver that runs off AC from the transformer in the background and accepts a blanking signal from the main board. Note, your violet module does not have this capability.

I'm not sure anything else in there is likely to run off 9VDC, but you can poke around with a voltmeter.

Normally I would say yes, you need a heatsink since it will be running continuously, but there's a fan in there that should keep it cool enough.

If you can fit everything in this housing, great.

No, it is not difficult to swap out the factory laser. The new one will likely need its own power supply though, as most drivers don't take AC. You can build your own rectifying circuit (or maybe even use the one in the green driver), but that is a story for another day.
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