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Graduate school is taking over my life, so I am selling off most of my extraneous hobby stuff! It's all first come, first served, so if you want to buy something, post a "PM sent for (...)" on the thread so that everyone knows who is first in line. Prices are posted, but feel free to send...

SOLD LPM results show a very stable output over 1.6W over a 2 minute run time. The heat sink barely creeps over room temperature during that time. I haven't run it more than 2 minutes, but I would assume you could safely run this laser for 3-4 minutes without any heat issues. Giant 1 5/8”...

Everything starts with an idea... So here's my latest idea :D: Has anyone tried to build an IR thermometer from the ground up? The technology doesn't seem too difficult; kind of like focusing a laser, only in the reverse direction. Using something like this (although there are probably...

SOLD The “Bushwhacker” Features: • 445nm M-140 diode • 1.8A Mogasm round driver. The resistors are heatsinked with small blocks of copper that make the tops even with the top of the IC. Then the whole thing is heatsinked with 2 layers of 1/8” thick copper, one fit tightly inside the pill and...

OK, I finally put together the second of two 445nm laser twins. They may not be the most beautiful lasers out there, but they are functional! Just a heads up, I'm going to be selling one of these... I'm just not yet sure which one (Probably the smaller, more powerful one). Before I officially...

So, I just put together my 4th laser. It is (or was) an lpc-826 driven with a a mohgasm linear 478mA driver. It seemed to work great for about 15 minutes (its snowing here... very good time to be outside with a laser!), but then it shut off immediately. I clicked the switch a few times...

It seems to be a well known fact on LPF that green lasers appear to be brighter than any other color. The question however has left many users wondering “Why is that?!” I poked around the forum for a while and it seems that no one has given a good explanation as to “Why?” So I will attempt to...

Just thought I'd post this in case anyone is looking for one of these big dogs. $650 isn't a bad price for a Hercules... You can also "make an offer" for less is you want, who know how low they will go. Hercules Series High Power Portable Green Laser GHE250xxx | eBay

I am in the process of putting together a laser which will be include an M140 diode driven by a Mohgasm 1.62mA driver. I already have this Melles Griot 10x beam expander: LBM Precision Laser Beam Expanders I would love to integrate this into this laser, but I can't find any information about...

Is it a bad idea to drive an unknown diode at 1.8A? If I end up with a "less efficient" diode, will it overheat/self destruct with that input? Should I aim slightly more conservatively? Obviously, I want power (don't we all), but it's not my number one concern.

I am new to the site, but I have been poking around and reading for a couple of days. I have to say I LOVE the way you (as a group) approach the topic of lasers! Always professional, technically proficient, and very safety oriented! During some random internet searches, I ran across a "labbie"...