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HI! It's been a long while since I'd been here! I'm getting back into playing with electronics. I started playing some Nintendo Switch this year because I just love sitting back on the couch instead of at an office chair at my desktop after I get home from work. Tangent And I noticed the...

I was so into lasers from 2010-2015. Then senior year of college happened, then grad school happened, then career started, then I got into the space industry, then covid happened; it just snowballed into a whole lot of responsibility that I needed to reserve my energy for so I couldn't enjoy...

I got f i r e d. Due to COVID. The commercial aerospace industry isn't doing too good right now. I have this big old laser I made last year that's just sitting there and I super cannot afford to pay on my car next month. It maxes out my LPM at 3700mW. Going off the power curve, it should be...

I broke into this 505nm laser to replace the driver, but I'm totally unable to get enough leverage on this heatsink with just an iron nail in order to unthread the heatsink from the tube. These kinds of assemblies are really common in Chinese lasers. Does anyone know what tool they use to screw...

Hi! It's been a while. I've been über busy with my first career job. Things changed a little while I was gone, mostly just the diodes reaching into the 470-500nm range, so that's neat. I've been lurking a little but something happened that made me jump back in here. I was building a wall clock...

I wasn't about to let summer pass by without one laser build. This is probably a great project for beginners looking for a really cheap laser pen just over 100mw. This will work with all cheap 445nm laser pens without risk of overdrive failure. I wouldn't choose a 1W driver for this, yet others...

I've been selling lasers on ebay since Nov. '14, and it always wows people on my resume, but I don't have time for that with the last semester of school and trying to find work. What would you do? Do I: Embezzle all my monies and use it for a new graphics card Build one last laser, 7W Buy fancy...

So I really like doing simulation work, and I'm applying for hundreds of internships and I'm afraid I might be stuck going to grad school instead of moving out of my parents' house. If you have need for simulations regarding heat transfer in your laser designs or fatigue failure or mechanical...

So i have teh 24 led module then do i just hook up to a car battery? just kidding. I have a brand new 24LD A140 casio module, and I was wondering if anyone could help me disassemble it without destroying it. Casio obviously knew people like us would attempt it, so they put some sort of...

Now, I don't have the interest to grow plants in a very scientific way, compiling data for 4 years on pepper plants, but it would be interesting to see the effects of lasers on plant growth. There haven't been many studies on it published online. Yamazaki UCSB Those are literally everything I...

Hi! I'm having electrical issues and I figured who knows constant current more than LPF. Background: - mechanical engineering student in design project group with 3 other MEs with no EEs. I've been charged with all the electrical duties because I know how to solder. Professor always disappointed...

I got this cool 1W flashlight today, and I really liked it. So I promptly destroyed it to find out how it works. Turns out it's almost the perfect size for a 12mm module head. I used a default 5mw red 12mm module I had from a long while ago. I first tried to fit the laser's driver in there...

Now we have more wavelengths in a 5.6mm package, and I was really interested in putting my own single mode diode in a WL pen style host. E2 was the coolest to me, and I just bought one specifically for not destroying, but E3, nano, and others are also workable. 532nm WL pens are also mod-worthy...

I had these up on ebay to attempt to raise money enough to buy a metal lathe so I could make fancy lasers, and I'm done with these. Too many times I've had customers complain or give me bad reviews because these seem to break during shipping for some unknown reason, even if I protect them from...

There's a clear difference in the color of those A140s and other blue diodes. The A's seem to be true 445nm and the M140s are 450nm, as is evident when comparing them to PLT450B diodes. Indigo is my favorite color. I really want some true 445nm diodes so I can preserve the wavelength for the...

AhHAHAHA!! 500mw ebay laser diode, 1.25A SL driver, SL green button cover, DTR 3 element lens, SL focus adaptor, ricktrent host and heatsink. I measured it max 566mw, but the output starts to fall after a minute or so probably due to thermal buildup or these cheap GTL batteries. The diode...

I think the youtube video is all in good humor. But the guy in the instructable kinda gave himself some obviously amateur tats. Laser Tattoo Instructable WTH, you could totally avoid the skin cancer and cataracts if you paid for some ink and an artist.

I bought this 405nm laser from Techhood to see if it was a good deal. It actually was, despite only emitting 300mw instead of 500. So I cranked up the amperage! It made a pop and a smoke. Both the diver and diode were dead. I bought a PL450B form marcuspeh and stuck it in there. I actually...

I got this awesome deal on the laser head, but I have no idea if it's broken. All the power supplies for similar lasers I see are listed for like $60-300, and that would kinda make this awesome deal turn into an awesome hole in my wallet. I'm a little hesitant to make my own because I've never...

All prices are in USD. Shipping in the CONUS is $2 unless otherwise stated; shipping outside the US is calculated. Priority Mail in the CONUS for small items is $4.95. Anything you see on my ebay page, send me a PM and get 10% off + these shipping rates. 200mw 660nm 301 Lasers SOLD 100mw 405nm...