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What if you had a nigh unlimited budget. You could buy whatever parts you could legally acquire, but you had the following parameters: the device had to be as small as you could possibly make it, preferably smaller than a poster tube and lighter than a sledge hammer. the device uses a diode of...

am I the only one who noticed their battery is a 26650 and not an 18650? 4Sevens 26650 Rechargeable Battery › Batteries & Chargers › Electrical Energy › Survival-Pax Co. I don't know much about power systems, but last I checked the specs of a 26650 aren't the same as a 18650, so I'm not sure...

I don't understand. I mean if you are building the laser to use batteries, why would batteries be bad for testing? I mean you are stuck with certain ranges anyway, right? Or do you perform some kind of circuit voodoo that allows you to pretend battery N is battery N*1.11 or whatever? I think I...

if you look close at my signature, you'll see a 0.8mW red laser is created by Swiss Army. I've had it since the Stock market crash of 08, and it still works on the same battery.

I've heard Aerogel is also thermal resistant up to stupidly high temperatures. I'm really not sure but if I could get my hands on the stuff, I'd probably sew it into a ski jacket or something. That's a bit far fetched in this decade though - like using graphene or synthetic diamonds. But...

the only thing on there I recognize is the Aixiz module - which I actually don't really know anything about, except it has something to do with lenses or drivers. I couldn't figure out what a PSU was. I'll look that up. edit: a permanent breadboard? I think I get it. ...Seems like a Vice is...

Say you started from an empty apartment room, with some money in the bank and a few thousand hours to spare. What equipment and devices would be necessary to start making just one laser? I ask this question because the tutorials always seem to be missing stuff by assuming everyone has "one of...

true true, but I'm thinking ahead for my "bling" laser. :D

burning all the way through thick cardboard is harder than you think, unless you set the laser down and wait a while. The ash turns whitish and then starts scattering the light. I was just doing this last night. Also be careful of highly reflective cardboard like video game boxes, they can be...

I've been wondering about this, since I don't mind collecting junk silver, would silver make a good heat sink? I was wondering if you could have it pre-machined or at least cut into a cylindrical bar, and who could you trust? Even though I've got the $$ for it, I don't know where to buy it...

Welcome to the forums! IMHO, you came to the right place. I recommend getting a higher rated LPM (2W+)with a large thermophile if you are going for the bigger ones.

drove down to napa and bought one from yobresal and the thing cleared 1 watt without a problem. Also got to learn a lot about diode lasers and see all sorts of nifty stuff I didn't even know existed. my fiance' fell madly in love with Yob's fluffy dog. after considerable use, we are recharging...

I think protection from yellow lasers is only necessary if you own one - I've seen them but they are more like a novelty color at this time, whereas green lasers are becoming the mainstream at gun shows, and its looking like 405-445nm diodes are becoming extremely popular due to blue ray...

hmnn. I think I'd like to buy one today, though I could totally pay more for a key switch if they don't mess things up.

Re: WTB +750mW 405nm will-do! :yh: edit: ok, so I checked out the pro shop, but do I just contact people making them?

is Yobresal still selling lasers? I'd like to make a purchase, though I'm curious if these things can have a key lock, as I'm a bit cautious in terms of safety.

Re: WTB +750mW 405nm after looking at those charts I must concur, I would also be satisfied with a 750-900mw variant. But how much does something like that cost, and how do you get people interested in making one?

I think you have a point in retrospect. I've seen multiple frequency googles before, I think on thorlabs, like the LG4 blue and LG5 pink, but I'm not sure if higher on those charts means 'stuff that gets through' or 'stuff that doesn't get through, so I figured I would ask. Since I want to...

Re: WTB 1W+ 405nm considering I would love to have one as well, I think it's interesting that they don't make them somewhat more accessible. Perhaps in a couple of years they will be more available. I see what look like scams at DHgate, but I've also heard in Thailand there's high end diodes...

I'm currently exploring the purchase of two or more pairs of safety glasses, and here's the problem I couldn't resolve with my searches: I want to start working with and building visible lasers, while my fiance' likes to go to the shooting range. I would like to buy a pair of safety glasses...