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I lightened up on the focus ring and focus is the size of a pin at about 3-4 feet

It actually can burn, I just had it focused like a moron. I might still raise the current just to see what it can do.

yes I do, I just neglected to realize my shakiness and haste, I think I expected too much from a 250mw red. it makes marks in a cd case, i'll do the match test in the morning

also, it might be my hand was shaky, but the beam seemed to almost flicker a little?

I finished my red laser build, but I feel like it cant burn anything, I've tried focusing onto a inked piece of paper and nothing, not even that warm. I am running a Mitsubishi ML101U29-25 diode at 340 mA, should I push it harder? tips and advice are welcome

it is a Mitsubishi ML101U29-25 I took your advice, it worked, but it cant burn anything, i'm running it at 340 mA, could that be why?

I'm about to get my diodes by mail today, and then I will make my first build, but how do I know which pin is positive/negative? Its a red diode

Update: my new york package started moving, so I don't think I'll need a diode from here right now, lock this thread? Or delete?

I'll consider it, I already have a bunch of blank modules and lenses though, but if I have to I might do that

Since my chinese buy is stuck in new york I think I'll shop here. I'm looking for a 5.6mm red laser diode of the specified power. If I could get it by mid next week that'd be amazing, also, I don't want to spend more than $15. Pm me or respond here if you can hook me up :)

I'm working on my first build now, but one day I want to own one of these too, first my red, then a 2W blue, and somewhere in the future will be one of these

Bump and update: it was processed again in new york, if you look at tracking that's the third time it was processed at the same sort facility, what's up with that? Does this mean its getting closer to me?

Gahhhh, I hope I get it before school is in, otherwise I'll have to come home one weekend for it

I ordered my diodes for my first builds from china, this was on the 6th of the month, then it took what seemed like forever to touch the US, but now it hasn't updated any tracking info for a week, I'm starting to worry. My tracking number is LK751259884CN and the carrier is usps, someone tell...

Sounds good

Try a flex drive from illuminationsupply.com

I have some old usb cables that I cut open a while ago, it would only make sense that red wire is positive and black is negative, right?

Sweet, thank you very much

Do you have any links or videos? I'm interested in trying this in the future

USB powered lasers? That sounds like something I should look into