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View ArticleOled display driver
Will post some info soon but this new 128*32 OLED driver Xwosee is building know is going to be bloody awsome, dedicated People like Vladimir and a few others are making this hobby worthwhile. Update...
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Free Laser from Work :D
Hey guys, so my boss just gave me this laser from our NIR instrument at work for free! :D She said it stopped working and the company didn't want to waste time fixing it so they just bought a new one...
View ArticleWhat kind of heatsink is best ?
Hello ! I have a 250mW 532nm laser and I start needing an heatsink to use it for more than 2-5minutes (laser engraving machine). I found two type of heatsinks for 12mm laser on eBay and I wanted to...
View ArticleWorld first high power underwater dive laser?
Yesterday we put our latest stainless steel handheld laser underwater to test it and the laser is using a 3W 445nm diode(NDB7875). We just got back two videos from our scuba diver, the laser seems to...
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Melles Griot 643 Ar/Kr setup questions.
So I bought Alex's (Mariomaster) Melles Griot 643 Ar/Kr laser at SELEM and, being the extra cautious person that I am, have a few questions that I would like answered before I fire it up. Alex is...
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HELP! Hall Effect Switch Doesn't Turn On MOSFET...
Good afternoon everyone! I am in a project right now in which I am building a circuit that uses a hall effect sensor (linear) to turn on a MOSFET. I've come across the below schematic, and have tried...
View Article10 Watt 808nm Diode, Max it can be overdriven too?
Here is the diode in question. 808nm 10W High Power C Mount Laser Diode | eBay I was wondering what you guys think this diode might top out at. I'm considering PBS combining 2 then using a Dichro to...
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Äèn karaoke cung cấp Äèn trang trÃ*, cảm ứng giá rẻ nhất
Äèn karaoke lÃ* Äèn dùng Äá» trang trÃ* ná»i thất phòng hát ko thá» trong bất cứ công trình nÃ*o , từ những quán karaoke có vÄ© mô lá»n cho Äến karaoke gia Äình , hay...
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Laser pioneer Ali Javan dies at 89
Ali Javan passed away last Monday aged 89. Dr. Javan was professor of physics at the Massachusetts Institute of Technology. A native of Iran, later a U.S. citizen, he received a Ph.D. in physics from...
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Make Your Own Spectrometer for Under $1
Spectrometers can be used to measure the wavelength of your laser. You can easily spend thousands of dollars on precision spectrometers, but for the hobbyist this one is incredibly cheap and fun to...
View ArticleEfficient linear IC regulator for diodes?
So I was thinking that it would be nice to have a regulator like the LM317 and AMS1117 that are simple to use but that has a lower reference voltage and an equal or better voltage dropout. After...
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Driver questions
Hi guys, just a couple of things.. Is it just me or is the driver missing something from it? There's two bits of solder left over but looks like something has came off it? Also I've bought a good few...
View ArticleThinking of selling my lasers and glasses
I was thinking of getting rid of them because they can be so dangerous to the eyes. I know that others may have more practical uses for them. I bought them to burn things and that is just not very...
View ArticleThinking of selling my lasers and glasses
I was thinking of getting rid of them because they can be so dangerous to the eyes. I know that others may have more practical uses for them. I bought them to burn things and that is just not very...
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For sale, 2.8w 445nm C11, Prairie Fire w/side clicky, $150 CONUS
Greetings This laser has less than 5 minutes of runtime, uses a NDB7875 diode from dtr, SXD driver set at 2.3a, G2 lens, 2x18350 batteries and charger. This is a C11 host, and unlike many others uses a...
View ArticleCharlotte Protest Opinions
Not sure if any of you guys are aware of what is going on here in the city of Charlotte NC but it's quite wild how far it has escalated. Please give your opinion on the issue and what you think should...
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Mattronium's Lasers
So here is my collection. I'm primarily posting this out here to keep track of my build threads etc. I also want to organize all my links in one common thread in the case that anyone wants to look at...
View ArticleWorking with Metal Halide lights.
So I've got another project I'm trying to figure out with a new-to-me source of light. Basically I've been trying to grow habenero peppers all summer but amazingly growing plants that originate from...
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Multiple wavelengths of green DPSS lasers.
It has been know by many for some time that some 532nm DPSS lasers produce multiple discrete green wavelengths. Because the information about this is sparse and spread out, this thread will hopefully...
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