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Thanks Duke, I ordered some PC heatsink + fan, should be enough... I was surprised - when only the LM317 circuit is powered by a laptop charger, it draws 2.2 amps. If I then plug the laser driver and laser, it draws 1.4 amps (the driver is designed to deliver 1.8 amps to the laser) - I thought...

Hello there, I would like to do engraving - the laser will not move as it will be above a XY moving table, so it is okay to be a bit heavy. The eBay quote for this laser is "2W in light output"; the heat output I would guesstimate (I over estimated here for safety) at around 4V (voltage drop) *...

Thanks ARG - it has a small heatsink: the housing of the driver. I did not let it get hotter than 45C (100F). I would need to keep it "on" for 10 mins or so any ideas? Many thanks! Thomas

Hello all, Just got a 2W 445nM diode here: 2W Copper 445nm M140 Blue Laser Module w x Drive 405 G 2 Glass Lens | eBay it works a treat, but gets hot quickly. The seller says "90 seconds on 30 seconds off with proper heatsinking". If I had a big enough heatsink (maybe even a water cooled one) -...

Thanks a lot. They don't provide a datasheet, and when the text is unclear... it gets confusing. I was planning to use the 3.3V output from a computer PSU, and then regulate the current on that. Is this a good idea? many thanks Thomas

Hi All, Just bought a IR laser diode here: One Extra High Burning Power 1000 1500mw Infrared to 5 9mm Laser Diode Gift | eBay and they say " Typical operation current is 1.2A Typical operation voltage is 2.0V Maximum operation current depends of the diode, the interval value is around 1.2A -...

Re: GB oemlasersystems goggles Hi - any news on the goggles? If you could send the payment details it would be great! Thomas

Hi folks, I purchased a "808nM, 1000mW, TO-5 laser diode". eBay - The UK's Online Marketplace There is no datasheet attached. I was wondering if you could recommend a module (heatsink + optics) like what aixiz is doing?? many thanks Thomas

Hi folks, Bought a "TO-5 808nM 1000mW" laser diode on eBay (no datasheet available) - I was wondering if you could recommend some optics/heatsink combination for this, in TO-5 diameter - like the Aixiz focusing assembly? many thanks Thomas

I am concerned with Eagle Pair - as I feel they could easily be counterfeited. If I could test them I'd be happier - but I can't. I was thinking of using a small laser to start with, then use a bigger one - are there 2W lasers you would recommend for this? many thanks Thomas

Just joined, thanks for the tip!

Re: GB oemlasersystems goggles Hi there, Could you please count me in for this item: NR-IR5-EN207 Style 34 High Tech Wrap Around Could you please estimate shipping cost for Denmark? many thanks Thomas

OEM asks for over 100 USD for shipping to Europe.... shame!

thanks folks! Would you know if OEM is sold in Europe as well? I'd like to avoid the import tax if possible... Thomas

I was thinking about engraving wood - I saw it done (in Instructables) with a blu-ray laser. Talking about laser safety goggles, I want to take this very seriously. The lasers I plan to experiment on will probably be Blue Ray (404 nM, 100 mW) and IR (808 nM, 300 mW). I intend to do all the...

Hi there, What is the best wavelenght for cutting/engraving? I am planning on getting a blu-ray 100mW and/or a IR 808nM 300mW laser for very light work on a DIY XY table - what would you recommend?? I am sure it is not all down to wattage... many thanks Thomas

Hello Folks, I would like some advice on laser safety. I am trying to build an XY table, with a laser to do some engraving on substrate. The lasers I plan to experiment on will probably be Blue Ray (404 nM, 100 mW) and IR (808 nM, 300 mW). I intend to do all the tuning etc with a (relatively)...