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What's the schematic you built that homemade PWM driver to? An LM317 won't do that on its own :)

Most potentiometers are pretty noisy - so you should expect to see all sorts of unpredictable behaviour if you keep the driver powered up while you adjust it. It's typical and reccomended to set the current of your laser diode driver using a Test-load of which I have attached a schematic as...

Glad to hear you're back at home and on the mend - My best wishes for your recovery of course.

Ah fantastic! I was hovering over the button for a random ebay seller with one of these bare diodes - Glad you're carrying them Jordan! I'll place an order soon when I get the cash to do so (y)

Seriously - use the edit button on the bottom of each of your comments to add content instead of replying inline. It spams the forum with notifications that those who have them set up to email etc could really do without. The best US source of 12mm modules is DTR. In the EU, DTR's fine. I'm in...

Welcome :) Sounds like you'll fit in well - and you've a pretty good collection already! Nice intro.

The other benefit of a direct-diode laser is the reduction in parts that can go out of alignment etc. A 532nm DPSS laser may not be as tolerant to the forces involved with firing a gun. Probably not an issue if it's for an airsoft gun, but for an actual handgun - you may have a longevity problem...

I did post a comment about safety - but it was downvoted to oblivion, and I recieved between 20 and 30 comments in reply, of which most were either refuting the safety issues and telling me to go away, or a vaguely incoherent string of expletives. The damage's already done to the viewers with...

This video came up in a "random videos to share" thread a few months ago - It's truly reckless behaviour, and I'm incredibly surprised none of the participants had eye damage. Contrary to common sense, sunglasses may increase the risk, as they do not block a significant enough portion of the...

Yeah - for good divergence, I'd steer clear of most powerful 445nm ones. My blue convoy build uses a single mode PLT5 450B diode kicking out around 300mW and it's one of the tightest diode lasers I own. the most powerful 445nm diodes have generally poor divergence and a rectangular beam shape...

Since white light is a combination of all wavelengths, you can build a laser with an apparent white beam by combining beams of multiple colours. Search for RGB lasers and you'll find lasers that can produce many colours, including white.

No - don't worry - enough people have joined the discussion that the thread's been revived :p Point about necros is generally for if a topic is no longer worth discussing, or nobody wants to :) Not the case here at all

I'm going to reflect that. If you're not going to treat other forum members civilly and with even a basic level of respect, then you should beat it.

Looking at that email, it really does look that way. Sorry - 10/10 being broken on arrival is either made up or stupidly bad luck. Edit: Firstly, he didn't say that. Secondly - AFAIK, it's not illegal to import lasers into the states.

Not gonna call you cause it'll cost me quite a lot... (international dialling is not included on my SIM plan oddly enough...) My point is now entirely separate from your disputes with Sanwu - I've issue with your conduct. Anger doesn't solve anything, and makes onlookers think less of you...

I have said what's right. I've stood up to common decency and forum etiquette - I don't know the full facts - so I'm sitting on the fence, where I should sit. If all you're gonna do from hereon in is insult other members, I'm gonna request that the Mods lock this down. No reason to fill...