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Old 11-03-2015, 04:01 PM #1
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Default Fs: Custom laser with custom made beam expander.

This is a custom host that I build with a custom beam expander. It has a m140 diode and a driver set to 1750mA the laser runs on two 18650 batteries. The host has a switch in back for safety and a side momentary switch. The host is 13" long.
The beam that comes out is 1.25" x 1.75" dia, kind of oval shaped. Very nice in person, pictures don't do justice.

SOLD 190.00 OBO shipped.
International buyers please pm me.














Last edited by Ehgemus; 11-12-2015 at 02:14 PM.
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Old 11-03-2015, 09:25 PM #2
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Default Re: Fs: Custom laser with custom made beam expander.

Very nice laser! Good luck with the sale

Last edited by doubleone44; 11-03-2015 at 09:25 PM.
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Old 11-03-2015, 09:39 PM #3
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Default Re: Fs: Custom laser with custom made beam expander.

Thanks, it is pretty cool, better in person.
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Old 11-03-2015, 10:34 PM #4
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Default Re: Fs: Custom laser with custom made beam expander.

Good looking build Ehgemus.

Last edited by RedCowboy; 11-04-2015 at 02:29 AM.
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Old 11-03-2015, 11:48 PM #5
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Default Re: Fs: Custom laser with custom made beam expander.

Nice laser, I like how the diode isn't buried deep inside a Aixiz type of holder so none of the beam is cut off by it. Also, having easy access to the driver is nice.
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Old 11-08-2015, 10:11 PM #6
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Default Re: Fs: Custom laser with custom made beam expander.

Price lowered, ^^^
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Old 11-09-2015, 03:31 PM #7
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Default Re: Fs: Custom laser with custom made beam expander.

What is the diameter of the aluminum heat sink/head?
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Old 11-09-2015, 04:26 PM #8
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Quote:
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What is the diameter of the aluminum heat sink/head?

2" dia
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Old 11-09-2015, 04:37 PM #9
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Default Re: Fs: Custom laser with custom made beam expander.

Is the focus adjustable?
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"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

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Old 11-09-2015, 04:46 PM #10
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Default Re: Fs: Custom laser with custom made beam expander.

Yes you can slide the plastic head forward and back.
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Old 11-11-2015, 10:30 AM #11
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Default Re: Fs: Custom laser with custom made beam expander.

Greetings,


Very nice looking host !
Can't wait to see the one you are making me with the expander I sent you.
I just wish it employed a different method for adjusting it, something like the one on this host...
Was also curios about the expander on that host, 8x, or 10x or what size ?
Will make a fine addition to someones collection !!!


cheers,
Moe
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My lasers include,

4.5w Scorcher NUBM07E 465nm custom Ehgemus host, adjustable focus 10x expander ( LPM 4w+ )
2w The Scorcher M462 custom host 462nm adjustable focus w/3 element lens ( LPM 2033mw )
5w+ " The Super Scorcher " NUBM44 custom Mrcrouse host, adjustable focus w/O-like G2 lens, 10x beam expander ( LPM ?w )
4.2w " The Scorcher " NDB7A75 custom MX900 build, adjustable focus w/3 element lens ( LPM ?w )
3.4w " The Scorcher Jr. " 450nm custom MX900 build, adjustable focus w/G2 lens ( LPM 3453mw )
3.2w " The Copper Scorcher " 450nm custom MX900 build, adjustable focus w/G9 lens ( LPM 3229mw )
3w Lazeerer Big Boy 445nm custom with adjustable focus ( LPM 2.8w )
2.5w Sixtee9 C11 445nm custom w/G2 lens ( LPM 2744mw )
2.2w RHD SAIK 449nm custom w/G1 lens, ( LPM 2062mw )
2.1w Ehgemus Alien Laser w/adjustable focus G2 lens ( LPM 1977mw )
1.8w RHD The Beacon 445nm custom with adjustable focus G2 lens ( LPM 1974mw ) Sold !!
1w Dragon lasers Spartan 445nm ( LPM 1220mw )
1w Wicked Spyder III Arctic 445nm with extended lens kit ( LPM 750mw....sad )

120mw 405nm labby, adjustable focus ( LPM 110mw )
500mw Wicked Spyder III Krypton 532nm with extended lens kit ( LPM 220mw....pitiful !! )
300mw From Mars 532nm w/adjustable focus ( LPM 320mw ) Dead

700mw Custom C11 638nm w/adjustable focus 3 element lens ( LPM 738mw )

PM me to order your Scorcher or Scorcher Jr. today !

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Old 11-12-2015, 01:06 AM #12
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Default Re: Fs: Custom laser with custom made beam expander.

If I knew the emitter size of the M140 diode, I could calculate it for you but try as I may searching for a long time, I'm not finding that information anywhere.
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Sincerely investigate any of these three short quotes as new concepts and you've taken your first step into a larger world:

"I regard consciousness as fundamental. I regard matter as derivative from consciousness..." - Max Planck. "Everything we call real is made of things that cannot be regarded as real" - Neils Bohr. "What we call physical things and events do not exist independently of subjective experience..." - Deepak Chopra.

Each of these three rabbit holes go deep, ending up in the same place.

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Old 11-12-2015, 08:08 AM #13
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I just bought one of your custom hosts, but now I want this too!
PM sent.
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Old 11-12-2015, 03:13 PM #14
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Default Re: Fs: Custom laser with custom made beam expander.

Quote:
Originally Posted by Alaskan View Post
If I knew the emitter size of the M140 diode, I could calculate it for you but try as I may searching for a long time, I'm not finding that information anywhere.
Well we know the G2 collects all the emitters light and the G2 has a 2.39mm rear focal length.

So if we know the magnification power of the G2 then we can calculate the distance based on the divergence that it will produce an exact picture of the emitter and at twice that distance it will be twice as wide and twice as long making it easier to measure.

Then verify be measuring at 4 times the distance to eliminate the emitter to glass window distance....or we could cut one of my duds open.

edit: WOW it's tiny.

Last edited by RedCowboy; 11-12-2015 at 03:31 PM.
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