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Ok. thank you. So for me from now I will where my safety glasses whenever I shine them on a surface not the sky. Is there a certain, safe distance I can shine my laser on that it won't damage my eye, assuming it is non reflective. Also, if you would quickly explain to me, my problem when...

Ok, so what if it is cloudy? Three of them are guys I work for, they all went to Stanford, they didn't do major calculations but some quick back of the napkin ones. The other guys are some people I met through my internship who both attended CalTech and they have both done a fair amount of...

Ok, I have safety glasses, I just didn't have them with me at the time and I wasn't too worried because I remember asking some guys I know and they said that at a distance the light is so diffuse it doesn't matter. I'm still confused on this matter and I asked a few guys and they all said the...

Edit, it no longer hurts and I think I was just being paranoid. I had been up for over 30 hours at the time my eye was hurting and its feeling better now. I have no dark spots in my vision, and as far as I can tell no blurs. In the past when i have been to an optometrist they said really don't...

Yesterday night I was playing with a 1.5w blue laser and my right eye hurts and I feel my peripheral vision is lesser. Am I just being paranoid? My eye may hurt because my high school put on a graduation party which was all night, but since then I've slept for a few hours. I have no dark...

Sorry, that was my first time reflow soldering. I kinda just gooped on solder paste. I'm putting another one together that I was alittle more careful with. If it doesn't turn out well I'll laser cut a solder paste stencil.

I assembled a ben boost driver, but its not seeming to work. I was wondering if someone would look over my board and tell me if I placed any components incorrectly?

Sorry for the long lag, I had some things I had to prepare for. AKA AP tests, I kept trying to study, but instead procrastinating. I'm uploading a video right now. I don't have any beam shots because the only camera I have is my cellphone but the video should be uploaded by the morning. I...

I haven't threaded on a lathe before and I remember overhearing the guys at my work talking about how it was a nightmare on their lathe. It turns out the meant for production parts, not one offs like this. Next time :p It took a few hours to lathe. I made it over two days. It was largely a...

This is my first fully homemade laser, second build ever. Its a m140 with a g2 lens driven at 1.4 amps. Turned from 1.25 inch 6061 bar.