Alright, so I sat down today and decided I'd try to put together my very first blu-ray laser going by this tutorial here. The results were, while better than I expected, a clusterfuck.
Everything was going well until I got to the point where I needed to remove the PCB from my diode. I had to put the soldering iron on for what I suppose (keep in mind I have zilch real experience) is a relatively dangerous amount of time just to get the bloody thing off since I couldn't get a good grip on it with my pliers. I eventually managed to do it and had a bare diode pressed into my module that I presume was quite damaged (but at that point I had no way of knowing).
I then moved onto the driver (Lava microdrive). I trimmed it with a good pair of tin snips as advised so that it would fit the Aixiz module, then after some wrestling with the half-holes left managed to solder some wires to the contacts. I hooked up about 3.7V of NiMh to it, then tested the current: About .9 A. Yes, A. Not mA. Even while adjusting the pot, I found that there was little difference at all in the output current. An LED I hooked up to the driver while it was running at this current lit up properly without any issues, though its max current was supposedly 30 mA. What happened here? What did I do wrong?
Impatient, I then hooked this up to the laser diode since I had a spare one and switched it on. Now, at this point the diode is in the module and the optic screwed in in front (though without a spring, which I had the presence of mind to lose): My hour or so of fooling with these things has resulted in a very weak violet flashlight. There was no collimation at all. Also, the pattern of the "LED's" illumination was like a cat eye: Dim on two sides, a bright stripe in the middle of the circle.
So what's the point of me embarrassing myself so thoroughly like this? First, I want to warn the other kiddies out there who are also starting out to do more reading on how to properly put electronics together before trying to do projects like these. Second, I would like to know all of the things that I did wrong and what I should do next time.
Feedback would be much appreciated.
Everything was going well until I got to the point where I needed to remove the PCB from my diode. I had to put the soldering iron on for what I suppose (keep in mind I have zilch real experience) is a relatively dangerous amount of time just to get the bloody thing off since I couldn't get a good grip on it with my pliers. I eventually managed to do it and had a bare diode pressed into my module that I presume was quite damaged (but at that point I had no way of knowing).
I then moved onto the driver (Lava microdrive). I trimmed it with a good pair of tin snips as advised so that it would fit the Aixiz module, then after some wrestling with the half-holes left managed to solder some wires to the contacts. I hooked up about 3.7V of NiMh to it, then tested the current: About .9 A. Yes, A. Not mA. Even while adjusting the pot, I found that there was little difference at all in the output current. An LED I hooked up to the driver while it was running at this current lit up properly without any issues, though its max current was supposedly 30 mA. What happened here? What did I do wrong?
Impatient, I then hooked this up to the laser diode since I had a spare one and switched it on. Now, at this point the diode is in the module and the optic screwed in in front (though without a spring, which I had the presence of mind to lose): My hour or so of fooling with these things has resulted in a very weak violet flashlight. There was no collimation at all. Also, the pattern of the "LED's" illumination was like a cat eye: Dim on two sides, a bright stripe in the middle of the circle.
So what's the point of me embarrassing myself so thoroughly like this? First, I want to warn the other kiddies out there who are also starting out to do more reading on how to properly put electronics together before trying to do projects like these. Second, I would like to know all of the things that I did wrong and what I should do next time.
Feedback would be much appreciated.