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  1. comradmax

    Cheap LOC build

    HOST: HomeDepot flashlight (2-pack for $5, so $2.5) HEATSINK: Mohrenberg ($5) LENS: Aixiz 650nm coated glass ($6) DIODE: LOC ($10) DRIVER: LD1117 (70c), two 3 Ohm resistors (20c) I: 415mA (priceless) BATT: 2x10440 in series ($5) MODULE: Aixiz ($2.5) The HD 2-pack flashlights come in red and...
  2. comradmax

    DIY PHR tripod labby build

    Here is a build I just made using a PHR diode. There is a pot for controlling the current: 30-125mA. The unit is powered by a 9V AC adapter. A mini-tripod is used for mounting the laser. Total Cost $47: --------------- $10 PHR sled $5 Moh heatsink $2.5 Aixiz $0.2 4x diodes $0.7 LD1117 $0.5...
  3. comradmax

    Run-time observations for a 1xAAA green pointer

    Bought a 40mW LPM verified 532nm pointer from this thread. It is powered by a single AAA battery, and came with a AAA primary from the seller. The laser has an impressive visible beam, the dot is TEM00, little to no splash. Typical run-time is ~5m, see the rest of this post for more info. I...
  4. comradmax

    LOC build in a project box

    This is my very first successful portable laser build! There are links in my signature (the letters 'DIY' are the links) to the albums. I thought I'd post it up in a thread and have some more info. A huge thanx to everyone on #laserchat and here who helped me get this working!:beer: Videos...
  5. comradmax

    "Hellowski"

    Hellowski, laserists! My name is Max. I was born and raised in Ukraine, but have now spent the majority of my life in the USA. I work as a software engineer for a corporation that sells products I would not use at home. I was in Virginia Tech class of 2004, Go Hokies! Some other stuff I'm...
  6. comradmax

    Killed 2 LOC diodes last night, don't know why...

    Well, I am up to 5 dead diodes now in my quest to learn how to build lasers... I appologize in advance for the long post, but I would greatly appreciate any help in troubleshooting my mistakes. Connected LOC #1, turn on, very dim TEM02 dot. Took the head off, connected DMM in series with LD...
  7. comradmax

    Looking for general help in understanding regulator design

    I plan on eventually making drivers for lasers, but I haven't ordered a single "laser" part yet:) (well, except those 5 Mohrengberg heatsinks, but they were cheap) What I'm doing now is making simple power supplies using a breadboard and trying them out on equally make-shift test-loads. I have...




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