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So as an update, here's a pic of the expanded spot when it's acting normal. However, since last night the spot has been distorted like the second pic, and when focused to infinity (third pic) has some crazy splashing that wasn't there before. This leads me to believe that unfortunately there is...

The threading on that Amazon "Word GX" blue laser I have finally crapped out, so I needed to look elsewhere if I wanted a true utility/burning laser. A week ago I contacted Lifetime17 for a heatsink so I could start on my second build. I originally wanted some sort of 405nm diode, but after...

Very nice. I've also got a Lifetime17 host on the way and I'm going to put an Osram PLTB450B diode in it as my second ever build.

Thanks for the info! What about an Osram PLTB450B, as it's readily available in module from DTR. It looks like 1.8A will reach 2.1W but I'm not sure if that's overdriving the diode too much and 1.5A would be safer for that. Also let me know if I should make a different thread for these...

Interesting, do you think the extra 40 mW will make much of a difference? I was just going by the fixed 445mA current buck drivers available from SL which are probably the most convenient to set up. I've messaged Lifetime about some heat sinks as well, the ones he has look like they would be a...

So if I were to run the BDR-209 at 445mA which is one of the fixed current options on SL, according to DTR's test page I would get around 740 milliwatts if I were to use a G-2 lens as well. Would this minimize potential loss of the diode as long as heatsinking is adequate, or do you think it...

So I've been able to play around with the focus of the 2E-G for a bit, and I've found that it's a pretty decent burner. Not quite as good as my Chinese 450nm Amazon laser however, except the threading on the Amazon laser has unfortunately crapped out so I'm debating on building either a 405nm or...

Check out the app called f.lux, it filters out blue light exactly how you want. I use it myself, but set it to kick in when the sun sets. You can configure it however you want.

You're right about that. I feel pretty stupid but it's working as intended now. Thanks :)

I figured out how to focus the beam! I'll post some beam shots later on tonight when it gets dark out. That "focusing ring" seems best suited to protecting the lens, as I still can't get it to actually adjust the beam, but it definitely focuses when you twist the lens itself. It's absolutely...

Thanks and no it's not the G2, it's the 2E-G. It was the cheapest option available, like I said I should have done more research and picked the G-2 or G-8 lol

Thank you GSS, I'll take another look at it after work today. I got the module and lens already pre-attached from DTR and like I said, it seems that knurled ring only acts to provide some protection for the glass lens itself. Twisting it does not change the beam and it actually twists off...

Thanks guys! Do you have any instructions or tips for focusing it? I only ask because it seems like it would be obvious, but what appears to be the "focus ring" is really just a cover for the lens that screws right off and doesn't change the beam at all. Sorry if this is a really stupid...

As I promised in my introductory thread, I'd be posting about my first attempt at building one of these things. My name's Jack, I'm 27 and work in manufacturing so I'm very familiar with EHS and OSHA regulations and safety standard operating procedures when handling hazardous materials and...

It's a beautiful piece of hardware. According to this video, that diode can form embers on wood. I'm assuming that entire back tube is for the batteries or power supply? lol Also, what's the weight and is this going to be a handheld or mounted device? Definitely looking forward to see what...

If I read correctly about that FAP800 diode, that thing can do 16-30W? Pretty insane for a handheld single diode host. How much of that wattage would be green light?

Hey all, new member from NY here. I had no idea that there was such a helpful community focused on lasers. The technology for handheld devices has come such a long way since I got my last pointer I had, maybe 17 years ago, which was a tiny red dot (probably under 1mw) that's actually been lost...