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Old 10-28-2011, 11:48 AM   #1
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Default homemade laser

hi every one im new to this website and i have well had a green laser pointer and now its diode died and i am building my own violet or red laser pointer and i was wondering can i still use the same driver or do i have to get a new one its not pot modded or anything i just removed the old diode and im going to solder a new laser diode from a dvd burner.

and i live in australia these things are banned here but still manage to get it .
thanks
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Old 10-28-2011, 12:52 PM   #2
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Default Re: homemade laser

Yes but you need to make a dummy load to set the current right and some diode information you have to look up yourself
How to make a selectable Dummy Load - VERY in depth
Laser driver dummy load (test red or blu-ray) [M0001] - $10.99 : Modwerx Shop
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Old 10-29-2011, 07:44 AM   #3
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Default Re: homemade laser

hmm seen like i dont have time to build a dummy board so the driver i have so far wont work?
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Old 10-29-2011, 08:03 AM   #4
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Default Re: homemade laser

it can, but you have to set the current. if the current driver is set too high it might blow your new diode.
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Old 10-29-2011, 09:35 PM   #5
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Default Re: homemade laser

My 100mW green laser pen draws 600mA. At this currents, most reds and violets will die so you should build a dummy load to adjust the output.
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Old 10-29-2011, 10:29 PM   #6
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Default Re: homemade laser

ok thanks guys
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Old 10-29-2011, 10:38 PM   #7
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Default Re: homemade laser

Quote:
Originally Posted by Nocturnal View Post
it can, but you have to set the current. if the current driver is set too high it might blow your new diode.
i dont thinks it high because this is a 100mW pocket laser and it only uses 1 aaa sized battery which is 1.5 volts
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Old 10-29-2011, 10:57 PM   #8
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Default Re: homemade laser

That doesnt mean itīs harmless. It might use 1.5v but it boosts to around 3 to meet the diode`s voltage and current.
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Old 10-29-2011, 11:08 PM   #9
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Default Re: homemade laser

oh ok then i dont know abut that
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Old 10-29-2011, 11:57 PM   #10
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Default Re: homemade laser

so does it have a potentiometer on it?
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Old 10-30-2011, 12:13 AM   #11
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Default Re: homemade laser

Quote:
Originally Posted by Nocturnal View Post
so does it have a potentiometer on it?
yes it does and i didnt play around with it because i know what it does it put more or less power to the diode
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Old 11-02-2011, 06:43 AM   #12
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Default Re: homemade laser

hi i have done some research and i am going to buy this driver 650-600nm 200-250mW Laser Diode Driver Constant current | eBay

and a PHR-803T sled from ebay do u think this will work?
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Old 11-02-2011, 06:52 AM   #13
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Default Re: homemade laser

you should measure your old driver to see if it's the same size and will fit inside your pen first
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Old 11-02-2011, 06:56 AM   #14
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Default Re: homemade laser

yea it should if not a have a wider empty texta which it can fit in smoothly
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Old 11-02-2011, 10:20 AM   #15
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Default Re: homemade laser

that driver might supply too much current, even on lowest setting.
I suggest this Constant current laser diode driver 80-500mA w/TTL | eBay or get two for the future 2pcs constant current laser diode driver 80-500mA w/TTL | eBay shipping is only for the first one (then 10c)
and make a test load to set them
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Last edited by Nocturnal; 11-02-2011 at 10:21 AM.
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Old 11-05-2011, 10:15 AM   #16
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Default Re: homemade laser

ok thanks
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