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Your project sounds really cool. I'd love to see the finished ship with low power beams in a light fog.

Moar power! But seriously, more power=brighter beam. The problem is that anything that gives you a nice visible beam will be a danger to the eyes. If the beam reflects back towards someone, or is pointed at them them, the potential exists for instant (before you can blink) eye damage...

Thank you!

Perhaps I wasn't paying attention, but what happened to DTR's laser shop? I just went there and it's all dead links :-(

If we ever do it won't be: single mode DPSS pocketable $70

I wish!

NOS seems a little unlikely but if Soky went outta the laser business they might have sold off their entire stock including parts.

It's been mildly entertaining, but if Avery or WILD is online I'd like to ask for a bit of moderation here. I think this has gone far enough. *Clicked to post and I see you've beaten me to it. Thanks WILD*

The one advantage of some of the 405 diodes is that they're single mode so they can be focused to a much smaller point for very fine engraving work. If you wanna do laser scrimshaw they're the way to go.

Your price on this wavelength is very reasonable in that host. Nice work!

Pozidriv?

Depends on how bad you want that wavelength :-)

https://www.ushio.com/files/specifications/necsel-green-laser-55x-fs.pdf 45 watts in for 2.1 watts out.

When do you need a heat sink? When the diode is on.

All right. With the 12709 rated for 86 watts that should definitely help a little. But that 86 watt figure presumes the 'hot' side of the thing is held at a constant 25C. YMMV

And how many watts is that peltier cooler rated for?

Whether it goes up or goes bang, gonna be spectacular either way. If it works it's gonna cut the cost per kg to orbit by a factor of 10 or more. Revolutionary stuph.

I think you just made my point for me about keeping these things securely locked up. Does your 14 year old actually understand how dangerous a one watt laser can be if misused? Do they understand what constitutes misuse? Do YOU understand those things? I may come across as being harsh but a...

Oooo, I like that color shift. I wonder how much current these can take.

Ummmm......well.......... If you're going to store your 1 watt laser anywhere your kid can potentially get hold of it you may find many of the members of this community reluctant to help you. Anyone with high power lasers should store them the way they would store guns. Especially if they have...