Jufran88
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- Feb 9, 2011
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This is my second laser build using Moh's blue hotlight kit with a PHR-803T diode running at 130mA from a custom built LMS1587 driver. :beer:
Don't ever forget your safety goggles. If you value your eyes and the ability to see invest in a pair of goggles.
HOST: Mohrenberg's blue hotlights kit
I wasn't feeling the blue so I decided to de-anodize it and changed the color to gray. It wasn't the exact gray I wanted but it works :yh:. I even tried to polish it with my dremel and that semi-worked.
*After de-anodizing*
*After letting the paint dry*
*After trying to polish it*
Now, de-anodizing it the way I did can be caustic to the aluminum and cause it to deteriorate. However, if its a low concentration it should be fine. There is a way to safely remove the anodized layer without taking off a few microns of aluminum, but its really toxic.
DIODE: PHR-803T
I'm pretty pleased with the diode and is great for a first time build. One thing did bother me was how it was packaged. There was a solder blob on the pins. I know this was for protection, but I just didn't like having to take off the extra solder. I would prefer anti-static foam, but that's just me
. Taking off the chip on the back was pretty simple. I just made a few snips with my knife and pulled out the pieces with my tweezers. The heatsink wasn't too bad to take off as well.
DRIVER: Custom - link *here*
I built a custom driver for this build using an LMS1587 IC that was supposedly set for 108mA using Vref/resistor = 1.25/11.5 = 108mA. When I connected it to my test load set for a blu ray LD and voltage input of 7.4V, I was outputting 130mA. It has capacitors for stabily and protection and a diode for reverse voltage protection.
*sorry for the sloppy soldering* :yabbem:
Batteries:
I'm using 2 3.6V CR123 lithium batteries
MISC:
*So I got kind of crazy with my dremel and didn't turn out as clean as I wanted but again its fine*
*heat shrink wrapped my driver*
*Right before I plopped it in and put the cap on*
*Using an Aixiz AR 405/455 coated glass lens*
*Light*
*Light off*
Final thoughts:
I'm loving my new DIY laser and it burns pretty well too! Although the current maybe set a bit high for long life, I could always replace the diode once it dies which I hope won't be for a while.
:thanks:
Don't ever forget your safety goggles. If you value your eyes and the ability to see invest in a pair of goggles.
HOST: Mohrenberg's blue hotlights kit
I wasn't feeling the blue so I decided to de-anodize it and changed the color to gray. It wasn't the exact gray I wanted but it works :yh:. I even tried to polish it with my dremel and that semi-worked.
*After de-anodizing*
*After letting the paint dry*
*After trying to polish it*
Now, de-anodizing it the way I did can be caustic to the aluminum and cause it to deteriorate. However, if its a low concentration it should be fine. There is a way to safely remove the anodized layer without taking off a few microns of aluminum, but its really toxic.
DIODE: PHR-803T
I'm pretty pleased with the diode and is great for a first time build. One thing did bother me was how it was packaged. There was a solder blob on the pins. I know this was for protection, but I just didn't like having to take off the extra solder. I would prefer anti-static foam, but that's just me
. Taking off the chip on the back was pretty simple. I just made a few snips with my knife and pulled out the pieces with my tweezers. The heatsink wasn't too bad to take off as well.
DRIVER: Custom - link *here*
I built a custom driver for this build using an LMS1587 IC that was supposedly set for 108mA using Vref/resistor = 1.25/11.5 = 108mA. When I connected it to my test load set for a blu ray LD and voltage input of 7.4V, I was outputting 130mA. It has capacitors for stabily and protection and a diode for reverse voltage protection.
*sorry for the sloppy soldering* :yabbem:
Batteries:
I'm using 2 3.6V CR123 lithium batteries
MISC:
*So I got kind of crazy with my dremel and didn't turn out as clean as I wanted but again its fine*
*heat shrink wrapped my driver*
*Right before I plopped it in and put the cap on*
*Using an Aixiz AR 405/455 coated glass lens*
*Light*
*Light off*
Final thoughts:
I'm loving my new DIY laser and it burns pretty well too! Although the current maybe set a bit high for long life, I could always replace the diode once it dies which I hope won't be for a while.
:thanks:
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