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Welcome to the forum. It's a great place to learn and share. What do the bad guys do when you pull out that cat? Looking forward to your builds. Have fun and be safe. Ed :beer:

Nice build and I love the lighted switch. I've been thinking about something like it, spent 2hrs on ebay last night looking at project boxes. +rep if I can and congratulations on becoming a vet Ed :beer:

Crap! I recently got an Opus 3100 v2.2. So far no problems, but now my fingers are crossed. Ed

Yes it would have to be optical. I don't know of any thermal that would even get started before burn through. I did the same test with a 2.75w 445nm and it was much slower to make a hole. Ed

I noticed that the glasses were letting a lot off light through before the laser burned a hole in them. So even if the strike was only for a tenth of a second you would still be blinded. I'd like to see this test done with a LPM to see how much is getting through before burn through. + rep Ed

Crap didn't read far enough down. :spank:

He still has a listing for these if anyone wants one. $45.55 with no PSU. Melles Griot Helium Neon Hene Gas Laser Tube 1mw Bright Red Beam 632.8nm HTF | eBay Ed

I remember when you started this and completely forgot about it. :yh: I think it's just going to keep on running until you give up and turn it off. + rep Ed :beer:

First off be careful with that thing, I have 2 and they don't have IR filters. So along with the green there is a lot of IR that can cause eye damage. Also it's not 1000mw, more like 100mw or less. The ring is more than likely from the lens being smudged or just a bad one. You can unscrew the...

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please It's 6 1/2" long and the main body is 7/8" wide. It was listed as 200mw on the web site. Ed

Nice work Sta. Hopefully it will get read by the new folks. +rep Ed

That's ok if they are the same and they have free shipping on 2 units or more. Crap, I did not know of the co you linked to.

This is my first build and I know it's the only one. It's my first build and you can see the build by clicking on the link in my sig. Thanks for looking. Ed

I got 2 of Larry's [Larry DFW here on LPF] 18650 Sanyo's and thought I should check them after 2 years of use in lasers and vape rigs. When I got them they had 40mohms of internal resistance I just checked them and they are both at 70mohms. All I can say is if you don't mind 11.95 per battery...

Get some glasses you will need them. :beer:

Very nice :beer:

I can't even use my lasers outside :cryyy: I live in a city and I'm within 10 mi of an airport and in direct line with a runway. So I'm stuck with the basement. I just don't understand why morons continue to do this when so many have received REAL jail time, just don't see how they could be so...

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please I got one that looks the same from fast Tech, tops out at 70mw. The star caps are nice so it was worth the $ Ed

Very nice work. Love the color. Very interest size too. Ed :beer:

You can add me. Blue Fan high range 4w New haven Ct