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^^ I will keep this in mind next time I pour a foundation of thermal epoxy :D The aluminum used and linked is the spherical 'atomized' type. Even if you mix this with a strong oxidizer, it does nothing. While im sure anything is possible, the amount used is approx 1gr per mix.. IIRC I...

I have a few builds to complete including 685nm, 671.5nm, and the only DPSS I have on hand will be the 473's and possibly 589's. The parts I have for the 589's came from 2 cni pens, one that had just stopped working, and the other had already been opened up, and some of the optics scratched.. I...

If you have an old diode, or one you dont care about, shine it into a mirror.. It wont take long to LED it. By reflecting back, you increase the optical flux within the cavity. The diode will LED very fast if its already running a high output near or past its maximum rating. 405's are very...

I'd agree there, red does signify 'emergency'... Wouldn't want to be stranded and flash blue.. people may think you're part of a snow removal crew :na: Red is good if you have a direct line of sight, but if in the woods, I would take a green or blue over red, simply because its easier to see...

^ Wonder how that worked out :thinking: Using paste and epoxy seems to me would be counter productive, unless they dried the paste with heat first. That extra moisture in the epoxy cant be good.

Red will probably have to be a really high mW.. The wavelength is not nearly as effective as the 405. I would think even for the 405nm you will need 4-500mW at minimum. I used a 12x for the 405, but the 445 wins for speed.. If you're running your diode at its upper end, be weary of back...

Re: SALE 1.5W+ 3 Mode Mini's W Gold Plated Copper Heatsink Video Added The goggles are a must, the rest makes for a nice package to get going.. :wave:

Anything to do something different.. Also, I could not justify paying for something like a 473 handheld when ive got all the parts right here :san:

If you are looking to add a laser to your safety kit, id avoid green.. I say this because while green may be the most visible, they are DPSS and sensitive to temperature and shock more than a straight diode laser like 445nm blue. The best bang for your buck would be a 445nm which could also be...

No problem.. Just be weary if it doesnt light up green, it could still be emitting NIR 808nm, dont look near the aperture even if it appears to be a dud. To double check, power it up, and view it with a cam, if you see a pinkish glow, thats the IR. :beer:

Its hard to say.. If you get a GGW from a writer drive, they can take a bit more than 200mA. The sleds seem to vary, I have lost a few at 180mA, so its a no guarantee thing. I run the remaining ones I have at 160mA, so far they are lasting. These diodes were remaining from a bad batch purchased...

Looks good :D Back in the day I built mine into a heatsink. Found one that was big and looked just like the sensor heatsink for the LPM. That was one of the first LB-I's.

The spring is neg- and the brass portion of the body is pos+. You can solder the + on the PCB where the single pin from the diode is attached labeled + is. Thats the case pin.

^ That looks like it would help establish a preferred mix.. So far when ive used this, I just add as much aluminum as possible without affecting the grip and strength of the epoxy. Its not all that hard to get a mix with plenty of AL that works well. That setup would be great for testing...

Its done with IR also, so id imagine there is a point where a red will do it. Only one way to find out :D

Good to know.. I first figured solder would melt with 500mW of 405 and that the 445's would do it much faster. Im sure it could still be done at less than 1W of 445, but whos got time to wait :wave:

I am as well, as well as not :thinking: I haven't 'tried' yet, but it will be far more difficult. I have only played with the 589 set I have, and it will be no easy feat.. 532= easy 473= not too bad 589= I will not go quietly.. :eg:

Appreciate it :beer: These things pop up when im in need of some distraction.. When the daily routine begins to cloud the mind, a little 'dusting' is in order.. I consider random projects to be my outlet :tinfoil:

Re: SALE 1.5W+ 3 Mode Mini's W Gold Plated Copper Heatsink Video Added Not exactly practical, but a fun way to solder for sure :beer:

I had just assumed that they used optics and cubes or something of the like for aiming. Though I have had no up close experience with any industrial type lasers.. The idea hit me when thinking of 2 beams from the same source, and making them as close of a match as possible. The idea to pass a...