My homemade 1.2W Brass Bar desk laser!(HD video)

gksudo · 09-12-2011, 07:48 PM

Heya everyone!

Just completed my brass bar laser!

At the time of this post, I don't have actual pictures, but here's my finely edited HD video of it.

I filmed and edited a full video showing how to make this, but its not complete yet, so here's just the tail end of the video:

Homemade 1.2 Watt brass bar blue laser - Burning Power! - YouTube

Enjoy!

Details:

DTR 445nm diode.
LM317 driver circuit (with 1 ohm resistor)
2 heatsinks on the LM317 (plus heatsink compound)
12 volt computer fan (although it actually cools the regulator more than anything XD)
Made from solid brass bar. The fan isn't even needed. It still stays ice cold!
Tap-threaded hole and set screw for Aixiz
Click on/off square switch
Steel grounded power adapter port (for versatile power input)

The only parts that weren't laying around my basement were the diode/aixiz, and the lm317 and 2 watt resistor.

Still waiting for my glass lens, so I'm playing it safe and letting it rest until I get it.

Wolfman29 · 09-12-2011, 11:27 PM

With a glass lens, there's no way you are going to get 1.1W out of it at 1.25A unless your diode is REALLY efficient.

Nonetheless, I like the build! Very original and DIY-y. +1!

lasersbee · 09-13-2011, 12:03 AM

Didn't I see a build tutorial of that Laser on HF...

It shouldn't have any problems with quick heat buildup...

Jerry

Cyparagon · 09-13-2011, 12:16 AM

Quote:

Originally Posted by Wolfman29

With a glass lens, there's no way you are going to get 1.1W out of it at 1.25A

gksudo · 09-13-2011, 04:34 AM

Quote:

Originally Posted by lasersbee

Didn't I see a build tutorial of that Laser on HF...

It shouldn't have any problems with quick heat buildup...

Jerry

Yeah it's the tail end of the video I'm working on. I don't have enough replies and info to edit and publish yet

09-12-2011, 07:48 PM	#1
gksudo Class 1 Laser Join Date: Sep 2011 Location: Pennsylvania Posts: 56 Rep Power: 4	My homemade 1.2W Brass Bar desk laser!(HD video) Heya everyone! Just completed my brass bar laser! At the time of this post, I don't have actual pictures, but here's my finely edited HD video of it. I filmed and edited a full video showing how to make this, but its not complete yet, so here's just the tail end of the video: Homemade 1.2 Watt brass bar blue laser - Burning Power! - YouTube Enjoy! Details: DTR 445nm diode. LM317 driver circuit (with 1 ohm resistor) 2 heatsinks on the LM317 (plus heatsink compound) 12 volt computer fan (although it actually cools the regulator more than anything XD) Made from solid brass bar. The fan isn't even needed. It still stays ice cold! Tap-threaded hole and set screw for Aixiz Click on/off square switch Steel grounded power adapter port (for versatile power input) The only parts that weren't laying around my basement were the diode/aixiz, and the lm317 and 2 watt resistor. Still waiting for my glass lens, so I'm playing it safe and letting it rest until I get it.

09-12-2011, 11:27 PM	#2
Wolfman29 Class 3B Laser Join Date: Jan 2011 Location: Scottsdale, AZ Posts: 3,200 Rep Power: 106	Re: My homemade 1.2W Brass Bar desk laser!(HD video) With a glass lens, there's no way you are going to get 1.1W out of it at 1.25A unless your diode is REALLY efficient. Nonetheless, I like the build! Very original and DIY-y. +1! __________________ Personal Collection: 405nm: Kryton Groove - 400mW 445nm: Solid Silver - 2.4W - Click Here! 532nm: O-like - 400mW - Rayfoss; 200mW 543nm: 1.52mW HeNe 589nm: PGL-III-C-589 - avg. 74.5mW, pk. 100mW 632.8nm: 5" HeNe Steampunk Raygun 660nm: Chrome Leadlight DIY Build - 225mW DIY LPM! Looking for a cheap, powerful buck driver? Check out the BlitzBuck at CajunLasers! With efficiency higher than that of a linear at approximately 90%, it's the best two-cell solution on the market! /shameless plug

09-13-2011, 12:03 AM	#3
lasersbee Class 4 Laser Join Date: Sep 2008 Location: Quebec, Canada Posts: 14,530 Rep Power: 551	Re: My homemade 1.2W Brass Bar desk laser!(HD video) Didn't I see a build tutorial of that Laser on HF... It shouldn't have any problems with quick heat buildup... Jerry __________________ J.BAUER Electronics Home Page LaserBee Laser Power Meter Products meet your needs at affordable Prices: See them all here on LPF... LaserBee Power Meter products ALWAYS in Stock and discounted for LPF Members.... 2W LaserBee A Laser Power Meter LaserBee 2.5W USB LPM LaserBee 3.7W USB LPM Available on eBay:Check availability here... This banner is available to and can be copied/used FREE by any LaserBee owner Last edited by lasersbee; 09-13-2011 at 12:03 AM. Reason: spelling errors

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