Old 08-15-2015, 08:39 PM #1
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Old 08-15-2015, 10:19 PM #2
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Default Re: Custom Ehgemus Host With Copper Heatsink

holy huge pics lol Did you message a mod about the other thread?
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Old 08-15-2015, 11:53 PM #3
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Default Re: Custom Ehgemus Host With Copper Heatsink

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Originally Posted by noobphaser215 View Post
holy huge pics lol Did you message a mod about the other thread?
Yep soon to be moved.
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Old 08-17-2015, 09:34 PM #4
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Default Re: Custom Ehgemus Host With Copper Heatsink

hate to kill your joy but good luck getting a 5 min duty cycle.. Its not going to happen without causing damage!
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Old 08-17-2015, 10:11 PM #5
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Default Re: Custom Ehgemus Host With Copper Heatsink

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Originally Posted by noobphaser215 View Post
hate to kill your joy but good luck getting a 5 min duty cycle.. Its not going to happen without causing damage!
I know I won't be turning it on for that long.. Except in emergencys. I seen DTR do it all the time in his reviews most of them are over a min. But won't risk that
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Old 08-17-2015, 10:42 PM #6
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Default Re: Custom Ehgemus Host With Copper Heatsink

True but he isn't doing it in a handheld host! He's doing it with a huge heatsink with a fan on the back of it. Or he's using the XYZ mount! Big big difference bud
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Old 08-18-2015, 12:10 AM #7
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Default Re: Custom Ehgemus Host With Copper Heatsink

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Originally Posted by noobphaser215 View Post
True but he isn't doing it in a handheld host! He's doing it with a huge heatsink with a fan on the back of it. Or he's using the XYZ mount! Big big difference bud
Ok I will start building right now. As soon as it done I will go outside and shine it (not at airplanes) lol I haven't got my safety glasses so I'm a bit worried about using it inside..

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Old 08-18-2015, 12:22 AM #8
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Default Re: Custom Ehgemus Host With Copper Heatsink

Good luck bud. take it slow* What diode are you using?

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Old 08-18-2015, 01:25 AM #9
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Default Re: Custom Ehgemus Host With Copper Heatsink

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Good luck bud. take it slow* What diode are you using?
M140 with xdrive
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Old 08-18-2015, 04:53 AM #10
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Default Re: Custom Ehgemus Host With Copper Heatsink

I'd like to see Ehgemus do more copper tops! Oh, by the way, you CAN run it outside for five minutes straight, I bet 20 minutes without over heating.... if you do it where I live in January.
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Old 08-18-2015, 05:03 AM #11
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Default Re: Custom Ehgemus Host With Copper Heatsink

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I'd like to see Ehgemus do more copper tops! Oh, by the way, you CAN run it outside for five minutes straight, I bet 20 minutes without over heating.... if you do it where I live in January.
Damn! 20mins. If that's the problem I would just bring an ice pack with me the whole time.
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Old 08-18-2015, 05:30 AM #12
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Default Re: Custom Ehgemus Host With Copper Heatsink

Ha, ice, unless dry ice, won't do -20 F in room temperature.
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Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

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Old 08-18-2015, 06:36 AM #13
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Default Re: Custom Ehgemus Host With Copper Heatsink

Quote:
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Ha, ice, unless dry ice, won't do -20 F in room temperature.
Alright, 5 min still good enough? Do you know where I can get a M140 445nm in copper module w/x-drive installed? I know DTR uses PayPal but PayPal won't approve my payment
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