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By improve the focus, I meant reduce the divergence of the beam over distance, but it is clear now that this is good as it will get :) I'm not bothered, I still love it! :drool: Thanks for the help! :beer:

I know that that can be used to focus.I was wondering if there was anything else that could be done to IMPROVE the focus. I stated in my previous post that I knew the module could be screwed in and out, and I also mentioned that the end of the flashlight could be attached to the end of the...

Same goes for everyone though. I checked the last post date to make sure I wasn't bumping an old thread, didn't realise someone had already done it. Apologies!

I can't believe the "advice" that some on here are giving. Most of you have said don't do it, but personally I wouldn't even say "if you are going to, do this, but my advice is don't do it". The answer should be a straight up no, without giving them advice on how to do it SHOULD they want to go...

I have an aixiz module at the moment, I was just wondering if I could add/swap with a magnifying glass to improve focusing. Here's the build at the moment: As you can see, the end if the module could be screwed in completely and a magnifying glass could be mounted inside the end, or, as I...

OK, so as stated, I've nearly finished my first build, its taken a bit of time but I absolutely love it! :drool: I've read that you can use a magnifying glass to focus the laser, so I have a couple of questions. First, what is the range of movement needed to focus, i.e. how much would I have...

Hi all, I've made a few posts before introducing myself, so apologies for that. My name's Sam, I'm 18, starting my studying of EE at University at the end of the month. I took an interest in lasers a couple of years ago I guess, but building my own always seemed a little out of reach, so the...

Why would you PM him? This info might be useful to others

That's great, exactly what I was looking for! It's my first build, the diode cost ~$10, so not extremely expensive, but I obviously dont want to waste money, no matter how much/little!

LM317 driver, so I'm assuming it's highside

Hi all, I was wondering, if I find out that the diode I have bought is case negative, which ATM I believe it is, can I cut off the negative pin, or at least shorten it, in order to bnetter fit my host, and use the case pin as the negative pin? Is that what case negative means? Or does it mean...

Just for the record, the diode I'm getting is a 660nm, ~200mW.

I'm looking at the price and I'm guessing the answer is going to be a big fat no from you guys, but how do these look? Protection Goggles Laser Safety Glasses for Red lasers New UK | eBay At that price, are the specs probably a lie? I have some more expensive ones coming, but I didn't realise...

Thanks guys, it was extremely late when I posted this and as soon as I woke up I realised what a stupid question it was and worked it out. For some reason last night, I was thinking that the resistor, once I'd worked out the current at a certain voltage, would then maintain that current should...

Hi all, first post. I've recently been researching for my own first build, and I came across the LM317 driver. My plan to power my laser is to use supercapacitors, purely as an excuse to play with them as well. The thing is, because I'm using a flashlight, I have limited space. For the LM317...