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Old 01-16-2016, 01:02 PM #1
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Default Help

Hi all, this is my first post. And my first build.
I used:

-Aurora C6 host
-445nm M140 Diode In Copper Module With Leads*
& 405-G-2 Glass Lens
$72

-1.25A Diode Driver
-2x 16340 CR123a 1000mAh 3.7V batteries

I soldered the brass ring and the driver together. I soldered the driver to the diode. I attempted to turn it on. Not working. I never touched the wires of the diode with my hands, because I learned from LPF that this could damage the diode. Now I can not see something I did wrong, so my question is, did I get a failed diode? Or is it a damaged driver?

I am from the Netherlands btw

Thank you for your help


EDIT: It Works, I dont know why, but maybe it is the switch. Now I get a rectangular spot even if I focus the laser. Is this normal?



Last edited by Abudujana; 01-16-2016 at 02:06 PM.
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Old 01-16-2016, 01:10 PM #2
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Default Re: DTR gave me a dead diode?

Hi,
I doubt very much if if DTR sold you a dead diode so forget that off the bat.He has an outstanding reputation here at the forum. Get in touch with him first before you start posting things like this. Tell him your situation he is always glad to help. Hope you solve this soon .. First you have no PSU to test the diode and you should test the driver also first or your wiring and soldering skills. This is your first build....

Rich

Last edited by Lifetime17; 01-16-2016 at 01:12 PM.
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Old 01-16-2016, 01:12 PM #3
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Hi,
I doubt very much if if DTR sold you a dead diode so forget that off the bat.He has an outstanding reputation here at the forum. Get in touch with him first before you start posting things like this. Tell him your situation he is always glad to help. Hope you solve this soon ..

Rich
I see what you mean. It was just a question Okay I will try contacting them
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Old 01-16-2016, 01:19 PM #4
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Default Re: DTR gave me a dead diode?

Hi,
Yes that would have been appropriate at first call..

Rich
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Old 01-16-2016, 03:39 PM #5
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Default Re: Help

Hi Abudujana
Welcome to the forum.

Yes a rectangular spot is the normal form factor of the 445nm M140 Diode
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405nm 5mW to 600mW
445nm 5mW to 3800mW
473nm 10mW to 145mW
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Old 01-16-2016, 03:45 PM #6
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Quote:
Originally Posted by Laser Chick View Post
Hi Abudujana
Welcome to the forum.

Yes a rectangular spot is the normal form factor of the 445nm M140 Diode
Thank you Oh I see. And is it normal that it does not have a great range. I tried focusing it a few times outside.

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Old 01-16-2016, 09:06 PM #7
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Default Re: Help

If you want Great range then use a 3 element lens. G2 are use primary for burning, cutting, ... If you want great range buy a single mode green diode from DTR.
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Old 01-16-2016, 09:09 PM #8
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Originally Posted by FUBeaches View Post
If you want Great range then use a 3 element lens. G2 are use primary for burning, cutting, ... If you want great range buy a single mode green diode from DTR.
You guys here are very helpful. Im glad I found the right forum Is it possible for me to replace this lens with a 3 element lens? Thank you
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Old 01-16-2016, 09:16 PM #9
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Default Re: Help

Yes of course. Just order a 3 element lens from DTR. If you have questions about lasers related stuff just send me a pm.
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Old 01-16-2016, 09:26 PM #10
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Originally Posted by FUBeaches View Post
Yes of course. Just order a 3 element lens from DTR. If you have questions about lasers related stuff just send me a pm.
This is great. I appreciate your help. Would you mind sending me a link to the lens that will provide the greatest range for my m140 445nm? And also, will it be easy for me to replace my lens with the new one? Thank you

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Old 01-16-2016, 09:54 PM #11
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Quote:
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This is great. I appreciate your help. Would you mind sending me a link to the lens that will provide the greatest range for my m140 445nm? And also, will it be easy for me to replace my lens with the new one? Thank you
https://sites.google.com/site/dtrlpf/home/glass-lenses

400nm-500nm AR Coated Three Element Glass Lens
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Old 01-16-2016, 10:01 PM #12
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Default Re: Help

Thanks I bought it
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Old 01-16-2016, 11:16 PM #13
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can't wait to see your build.
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Old 01-16-2016, 11:25 PM #14
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Default Re: Help

If you want good divergence, get a beam expander. It increases your range about 5-10x depending on the one you get.

Thanks,
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Old 01-18-2016, 12:52 PM #15
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can't wait to see your build.
It is nothing special. The same as this one : https://youtu.be/XyfrNsoxaQ4
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Old 01-18-2016, 12:52 PM #16
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If you want good divergence, get a beam expander. It increases your range about 5-10x depending on the one you get.

Thanks,
Wow thats great thanks
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