Old 10-24-2007, 11:49 PM #1
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Default DVD Diode... now what?

Well my friend finally got me a DVD drive to attampt at making a laser. I stripped the the housing off of the block (pic below) and have no idea where to go from there.

Also I've heard about people blowing diodes... what need I do to prevent that?

Any pics that show that I should be looking for in this thing would be awesome.

Small pic:



big pic \/
Attached Thumbnails
DVD Diode... now what?-dscn1899.jpg  


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Old 10-24-2007, 11:53 PM #2
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Default Re: DVD Diode... now what?

i believe antistatic protection is one of the big safeties you need to not fry the diode.
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Old 10-25-2007, 12:12 AM #3
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Default Re: DVD Diode... now what?

Rasel,
It might help if you posted the make and model number of the drive.
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Old 10-25-2007, 12:41 AM #4
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Default Re: DVD Diode... now what?

Umm...

Well it's i/o Magic Internal DVD+-RW/+-R Dual Format Double Layer.

Specs:
Interface Type: E-IDE/ATAPI Interface
Data Transfer Rate (max speeds):

-Write:
40x CD-R
16x DVD+R
16x DVD-R
2.4x DVD-R DL

-Rewrite
24x CD-RW
4x DVD+RW
4x DVD-RW

-Read
40x CD
16x DVD
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Old 10-25-2007, 01:05 AM #5
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Default Re: DVD Diode... now what?

Thanks but I could not find anyone who has used that drive off hand. Kenom has a very good write up. Read the post then watch the movie which is linked at the bottom of the post.

http://www.laserpointerforums.com/fo...num=1181635652
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Old 10-25-2007, 01:19 AM #6
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Default Re: DVD Diode... now what?

Looks like i have some work to do ;D
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Old 10-25-2007, 01:36 AM #7
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Default Re: DVD Diode... now what?

;D Yes you do. But it should be a closed can diode so cutting it out of the heatsink should not be that hard. As far as ESD, you do need to be careful, but I don't think I have killed one diode yet because of it. Even while I was harvesting my blu-ray diode, I forgot to put my wrist strap back on a couple of times, but I was also had everything on an anti static mat. Good luck..
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Old 10-25-2007, 01:56 AM #8
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Default Re: DVD Diode... now what?

OK well I have no idea how to prevent static build-up other than not dragging my socks on the carpet.
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Old 10-25-2007, 11:56 AM #9
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Default Re: DVD Diode... now what?

buy an antistatic wrist strap, connect it to something grounded, and/or buy an antistatic work surface.
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Old 10-25-2007, 03:52 PM #10
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Default Re: DVD Diode... now what?

i always wear a wrist strap but if you dont have one, the another way is to touch a non painted surface every once in a while like 10-20secs. 8-)
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Old 10-26-2007, 11:00 PM #11
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Default Re: DVD Diode... now what?

How about be on the ground with bare feet?
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Old 10-26-2007, 11:06 PM #12
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Default Re: DVD Diode... now what?

Yes that would be ok for a DVD diode. The humidity in your place makes a difference too....the higher it is the less chance for ESD. Just touch some bare metal before you touch the diode.
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Old 10-27-2007, 12:39 AM #13
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Default Re: DVD Diode... now what?

Antistatic wristband, JB Weld, and Arctic Silver.
JB Weld is a good alternative to solder, as there's no danger of frying the diode with heat. Arctic Silver is the best for heat transfer, and has limited adhesive qualities. The antistatic stuff is a no-brainer. If you're doing Kenom's Dorcy mod, I can go a little more in-depth.
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Old 10-27-2007, 05:03 AM #14
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Default Re: DVD Diode... now what?

Learn how to solder.. There is no good alternative to soldering IMO..
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Old 10-28-2007, 12:23 AM #15
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Default Re: DVD Diode... now what?

I know soldering is the best, but I've fried a few too many diodes from excessive heat ;D
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