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Old 08-05-2011, 10:48 AM #1
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Default 445nm laser by abyz

Hello!! I am from Russia and recently came to this forum, and I want to show my 445nm laser.
Laser housing machined on a lathe by my design. I used a homemade driver on chip ZXSC400. current on the laser diode 1.3A. It's direct drive from 1 18650 2,2A li-ion accumulator. I only run it with glass Aixiz lens.
photos:













video:


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Old 08-05-2011, 11:19 AM #2
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Default Re: 445nm laser by abyz

First welcome to the forum

Nice host you have!
I like it
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405nm >> 800mW Q5 by DTR & lazeerer from DJNY
405nm >> 1000mW 501B host from Blord
445nm >> 1200mW AuroraC6 Host from Survivallaser | review
445nm >> 3400mW Dominator Host from Blord
488nm >> 3W Argon-Ion from Aesculap Meditec
514nm >> 3W Argon-Ion from Aesculap Meditec
532nm >> 100mW module without host
660nm >> 300mW Jayrob Chrome pen built by RA_pierce from DJNY

Ophir-Head 20C-A in a 2W LPM from Bluefan - review
Ophir-Nova LPM with Ophir-Head L30A-10mm
Spectrometer Spectra-1 from Kvant (Slovakia)
Kvant ClubMax 3000 RGB Pure Diode White Showlaser with Pangolin Discoscan Lens from Kvant (Germany) | review

You want to see the SurvivalLaser in action? --> Beamshots 445nm + 532nm
You have laser related questions? --> Sam's Laser FAQ
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Old 08-05-2011, 08:36 PM #3
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Default Re: 445nm laser by abyz

Welcome!

That laser looks great, i think you're going to fit in well around here
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I see................wait, what now?

(3x) 405nm
(6x) 445nm
(4x) 532nm
(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
SSY-1 Laser
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Old 08-05-2011, 09:05 PM #4
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Default Re: 445nm laser by abyz

Well done sir! Looks beauuttiffulll! I know i'll probably never make a laser that nice.
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Old 08-06-2011, 02:34 PM #5
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Default Re: 445nm laser by abyz

Thanks! If anyone wants, I'll upload the drawings of housing.
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Old 08-06-2011, 03:25 PM #6
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Default Re: 445nm laser by abyz

Looks good. My guess is you use a scissors type knurler. Looks like your getting the same doubling on one cutter problem I used to fight with all the time. Do you start with the cutters clamped to the piece or do you gradually increase pressure until your at the depth you want?

Also, don't be scared to cut deeper when your getting a good diamond. Nice sharp deep knurls are a thing of beauty.

I used to get the same doubling you do.



But now I generally manage to get good diamonds every time.



Both were done using the same cutters. I can share my technique but it's really just more practice than anything else, though how you start the knurl plays a big part in the outcome. I get the best results by starting the lathe and clamping the cutters until they're just barely contacting the material, then turning the lathe off and checking the pattern. If it's a good diamond, I turn everything back on then keep clamping until i'm at the depth I want. If it's doubling, I shift to a slightly different spot on the work, adjust the angles the cutters meet the work ever so slightly, then try again. But I know this. If I start the lathe with the cutters engaged against the work initially, I ALLWAYS get doubling.. Sometimes on both cutters..

Also, is that a custom driver, or is it out of a flashlight?
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Old 08-07-2011, 03:59 PM #7
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Default Re: 445nm laser by abyz

I start with the cutters clamped to the piece. I just started working with the milling machine. Thanks for the advice. I will definitely try it! I made this driver specifically for this laser. If you want, I upload the layout and structural scheme of driver.
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Old 08-07-2011, 04:34 PM #8
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Default Re: 445nm laser by abyz

Doubling is usually caused by using either the wrong pitch knurling wheel or the wrong diameter material. Check this out...

LittleMachineShop.com - Stock Diameters for Even Knurls
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