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My lasers been sitting for about a month and the dot was fine before. Now the dots all messed up even when it's focused. Anyone know what this is?

I'm looking to build a 405nm laser with the 16x diode pretty soon but I'm not sure what lens is best. I know the difference between the G2 and the 3 element lens but I just can decide on one. I'd like your opinions because I'm finding both lenses being used for this diode.

I've been lurking on this forum for like a year now but kinda forgot to announce my presence. I now realize that's probably why some of my questions weren't taken seriously. I found out about lasers from StyroPyro's YouTube channel and am now regularly saving up for new laser builds.

So I just build my first laser with a Oclaro 700 diode and I just realized I don't know how to figure out which way the battery's would go if you build your own laser. Is their some rule I can follow? Can seem to find any info about this.

I'm confused on if certain diodes need certain drivers since I heard that red diodes need a soft start driver. So I would like to know for future reference what diodes can I just use a plain driver that comes with Survival Lasers host assemblys and what diodes need a special driver?

Hello, I've purchased a green and blue laser over the last few months of being on this forum. Now i want a red laser to complete my simple collection and though this would be a good time to try and build one. I'm stuck between the Oclaro 700 diode and the Mits 500. Which one would be better for...