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Old 08-18-2011, 01:20 PM #17
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Default Re: Damaged Lens

after further testing i found out that the lens is un use able. So we go for plan B which is the use of another lens from a cheap laser. But there is a new problem with that solution. the cheap 5mw laser has a pen shaped host & i tried every thing to open the head/tip of the laser (where the lens is) but with no luck !!
any ideas how to open it up ??

Pen shaped host (Very common)


The unopen able tip/head of the laser




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Old 08-18-2011, 05:52 PM #18
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Default Re: Damaged Lens

Those can be pretty hard to remove - i suggest placing the silver colored part in a vice, and rocking the black part loose... it seems there are plenty of toolmarks on the tip already, so not much to worry about in the vise!
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Old 08-18-2011, 06:03 PM #19
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Default Re: Damaged Lens

Sort of off topic here... but I have some acetone here and I would not DARE put it on a lens. The problem is acetone will eat through acrylic and some cheap lasers like this one "may" use an acrylic lens. Are all DPSS lenses glass? I really am having a hard time beliving they are.

Also another question would be. Would an acrylic lens be composed of some other type of acrylic not prone to acetone eating through it. I understand some very high powered green lasers can be cleaned with acetone but these optics need to be glass.
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Old 08-18-2011, 06:09 PM #20
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Default Re: Damaged Lens

Quote:
Originally Posted by XiteR View Post
after further testing i found out that the lens is un use able. So we go for plan B which is the use of another lens from a cheap laser. But there is a new problem with that solution. the cheap 5mw laser has a pen shaped host & i tried every thing to open the head/tip of the laser (where the lens is) but with no luck !!
any ideas how to open it up ??

Pen shaped host (Very common)


The unopen able tip/head of the laser


Drill a hole in a block of wood that is slightly smaller than the diameter of the head. Cut the block in half through the hole. Put the wood blocks in a vise. Put the laser head in the now smaller hole. Tighten the vise and rock the pen back and forth. This should not damage the head.
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Old 08-20-2011, 01:58 PM #21
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Default Re: Damaged Lens

after getting a vise i opened the laser up but the lens is still trapped inside ! i tried every thing buts nuthing came make it come off


any ideas how to get it out ?
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Old 08-20-2011, 08:33 PM #22
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Default Re: Damaged Lens

Er. Have you tried unscrewing it by any chance?
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Old 08-21-2011, 12:13 AM #23
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Default Re: Damaged Lens

As qumefox suggests, the slot you see in the lens is where you would put a screwdriver so you can unscrew it.

Just make sure you don't scratch the lens in the process or you will be right back where you started.
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Old 08-21-2011, 01:18 AM #24
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Default Re: Damaged Lens

Quote:
Originally Posted by jcranmer View Post
As qumefox suggests, the slot you see in the lens is where you would put a screwdriver so you can unscrew it.

Just make sure you don't scratch the lens in the process or you will be right back where you started.
I use a small spanner or a sturdy tweezers to turn the lens.

Sometimes, the brass nut has threadlocking compound on it, as well.
__________________
Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
1.2W RGB Projector; JNM Wide Sky Galvos (Made in Germany); Laser Show Express; Arduino-based DAC
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