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I need a noob project

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usafsgc

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Ok, I am in high school, can't know any less about lasers, and now I have to come up with a project. I tried looking around the forum for somewhere to start, but now I'm even more dissoriented. I need someone to point me to an easy project my friend and I could work on.

I'm doing this in my physics class, so it doesn't have to be too difficult. I was thinking about doing the burning laser with the dvd diode, but wondering if it would be worth it to learn how to make a driver or if there's a more simple way to keep it from dieing quickly.

Any help would be appreciated! ;D
 





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usafsgc

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Ok, thanks for the help.  I'll be sure to go over it when I have the chance.
 
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chido

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For an easy project I suggest you do the dorcy mod, all you have to do is add a resistor and a capacitor, you don't need to make the entire driver since it's already built in the flashlight, here's the long ass thread: ;D
http://www.laserpointerforums.com/forums/YaBB.pl?num=1181635652
And look in the tutorials section, Kenom made a video walkthrough: (he posted that vid in his thread above, but it's all the way in the back of the thread)
http://www.laserpointerforums.com/forums/YaBB.pl?num=1204859426
 
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usafsgc

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I'm looking for a nice cheap diode now. I was looking at the lite on at newegg which is the cheapest right now, and was wondering if I should get that one? (LITE-ON 20X DVD±R DVD Burner Black IDE Model DH-20A4P-04 - OEM blah blah blah)
I have never extracted a dvd diode before, and don't want to buy one where when I try to get it out of the burner, I destroy it. Links to cheap diodes ($20-$30) that would be good for me would be appreciated.
 
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chido

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You can get a diode pre-installed in an aixiz module here for 27 bucks only!!!! Here's a graph showing its performance. :)
 
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usafsgc

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That's why I use the links above. I now ask, should I try harvesting a 20x or stay with stoneteks 16x $20 diode? I think I may go with that one if no one has any suggestions
 
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usafsgc

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I have an aixiz module andwant to install it myself, but it looks like I'm going to get stonteks diode :)
 
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chido

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Oh I'm sorry, I didn't read all the other posts. :-[ ;D
Don't get a lite on drive, those have a short open can diode which is not as strong as a long open can, look at this thread for a 20x Sony drive from which you can harvest a long open can diode really easy. :)
 
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usafsgc

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I will get that one as a second choice, but if there's nothing wrong with the 16x at santek, theirs is $20 with free shipping I think. I read the post above and another one that says they might have a "bad batch"? Though I think they have that taken care of, right?
 
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chido

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That was weeks ago, now they got diodes that appear to be more powerful then the good ones were. Look here.
 
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usafsgc

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Yeah, I read that. That's the 16x right? either way I am going to get the 16x now.
 
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chido

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Look at the graph, of course it's a 16x, it even seems to be more powerful than my 18x short open can diode. :eek:
 
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