Backstory
My BD209 laser wasn't powerful enough to vaporize the material I was concerned with, so I wanted to build something more powerful. At the same time, I didn't want to spend a lot on a fancy host, when really I'm only concerned with doing power tests at this point.
Materials
NUBM44, 12mm short-back module, no driver [DTR]
Blackbuck 8 driver [DTR]
G2 Lens [ebay]
AixiZ 12mm aluminum heatsink [ebay]
18650 battery holder [local shop]
2x 18650 batteries [already own]
Phase 1: Build Test Load
I chose the Blackbuck partly because it is able to do PWM / TTL modulation, and I wanted to be able to calibrate it myself.
Several LPF threads were instrumental in learning how to build a test load for myself:
http://laserpointerforums.com/f42/di...uit-26772.html
http://laserpointerforums.com/f67/op...d-88040-5.html
To build it, I bought the parts from my friendly local electronics store:
6x 8A diodes
6x heatsinks
1x 0.1ohm 10W resistor
1x prototype strip board
1x screw terminal
![]()
Test load with laser and driver.
![]()
Underside of the test load.
Phase 2: Assemble Prototype
I attached the components to DC power barrel jacks to make them easy to connect together.
![]()
12mm NUBM44 module in lab-style heatsink.
![]()
Test load with power connector.
![]()
Blackbuck 8 driver, and my first time doing SMD soldering!
![]()
Driver octopus!
![]()
All the pieces are falling into place.
![]()
I attached the control pins from the driver to a breadboard, which I put a momentary switch on. Here, the driver is set to 900mA, which seems to be its lowest setting.
![]()
First lasing! Connected a toggle switch and 10k pot to the breadboard here to make the beam adjustable at run-time.
![]()
Measuring the beam. It looks really pretty reflected off the marble tile.
![]()
Unfortunately due to software issues, I wasn't able to save a log of the power output. Here, the driver is set to 2A, and we're getting 1.75W of power!
![]()
Beam shot at 1.75W. Already it's so bright!
Unfortunately, I got my G2 lens stuck in it, as chronicled in this thread here: http://laserpointerforums.com/f44/my...elp-99928.html
I will update if I am able to get it back online!
Thanks for reading!
:beer:
My BD209 laser wasn't powerful enough to vaporize the material I was concerned with, so I wanted to build something more powerful. At the same time, I didn't want to spend a lot on a fancy host, when really I'm only concerned with doing power tests at this point.
Materials
NUBM44, 12mm short-back module, no driver [DTR]
Blackbuck 8 driver [DTR]
G2 Lens [ebay]
AixiZ 12mm aluminum heatsink [ebay]
18650 battery holder [local shop]
2x 18650 batteries [already own]
Phase 1: Build Test Load
I chose the Blackbuck partly because it is able to do PWM / TTL modulation, and I wanted to be able to calibrate it myself.
Several LPF threads were instrumental in learning how to build a test load for myself:
http://laserpointerforums.com/f42/di...uit-26772.html
http://laserpointerforums.com/f67/op...d-88040-5.html
To build it, I bought the parts from my friendly local electronics store:
6x 8A diodes
6x heatsinks
1x 0.1ohm 10W resistor
1x prototype strip board
1x screw terminal
Test load with laser and driver.
Underside of the test load.
Phase 2: Assemble Prototype
I attached the components to DC power barrel jacks to make them easy to connect together.
12mm NUBM44 module in lab-style heatsink.
Test load with power connector.
Blackbuck 8 driver, and my first time doing SMD soldering!
Driver octopus!
All the pieces are falling into place.
I attached the control pins from the driver to a breadboard, which I put a momentary switch on. Here, the driver is set to 900mA, which seems to be its lowest setting.
First lasing! Connected a toggle switch and 10k pot to the breadboard here to make the beam adjustable at run-time.
Measuring the beam. It looks really pretty reflected off the marble tile.
Unfortunately due to software issues, I wasn't able to save a log of the power output. Here, the driver is set to 2A, and we're getting 1.75W of power!
Beam shot at 1.75W. Already it's so bright!
Unfortunately, I got my G2 lens stuck in it, as chronicled in this thread here: http://laserpointerforums.com/f44/my...elp-99928.html
I will update if I am able to get it back online!
Thanks for reading!
:beer: