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Hello, TLDR: See bottom. I've written this in long form for completeness. I'm sure I'd get a lot of questions otherwise. So for some time I've had the option of getting a laser attachment for my 3D printer, but I never opted for that, because all I'd do with it is some engraving which wasn't...

I searched online but couldn't find any information at all. Likewise in the forum, but the search function broke Nd and YAG into separate tokens and so it became too small and too common to search for. In case it makes a difference, I'm assuming that the rod is being pumped with 820nm light...

Hello, I bought this 532nm green laser: https://www.ebay.com/itm/532nm-50mW-Green-Laser-Module-Laser-Diode-light-Free-Driver-LAB-Constant-working/153358894157 It's rated for 532nm at 50mW. When I tested it with this LPM...

Hello, I purchased a 532nm laser module and it's behaving strangely. I'm curious what's going on with it. I suspect that it's broken. It turns on and off seemingly erratically. At first, I figured it was a loose connection, but after some time of playing with the wires I became certain that that...

I have a pair of goggles which I've tested as being good enough for other wave lengths, but when it comes to IR I have no eye protection and can't see it either. So I went on ebay to find a cheap pair of goggles. The problem is that these goggles, colored blue, are supposed to protect the IR...

Hi guys, I'm a laser newbie and after doing a fair amount of reading here, and asking a few questions on ebay, I purchased a few lasers from ebay and waited an eternity for them to arrive (no surprises). Now I've tested them and am uncertain what to make of them. I don't intend a return or...

Hi again, I did try searching the forums, but my search terms contained too many results. I see on ebay various laser diodes, often these have 2 pins. Others, such as this one: https://www.ebay.com/itm/1pc-405nm-5-6mm-5mW-20mW-Violet-Blue-Laser-Diode-TO-18/ have three. I thought if I got 1 that...

I'm not looking for something to burn my house down with, just your basic laser pointer. 405nm is advertised as a violet laser. I can't find something lower. Thanks!