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RadioShack is now but a shadow of its former DIY glory. I came to USA in '96, and even in such a short time I have been able to notice a gradual shrinking of the parts section. I second the online orders for parts, but you have to pay shipping. If you order in bulk, then it makes sense. If...

Thanx! Yea, I saw your build thread for that red host, excellent work!

I really like the 'pirates' idea! Freakin' Piratez! :crackup: OP: I just got my 2 pairs of goggles. Hi, I am a noob, and I don't want a 1W laser... Please try to take the advice of the forum and read/search/learn. I personally recommend 2-4 weeks of total research before making any purchase...

Make sure you can focus beyond infinity, and up-close for burning. If not, then maybe you have your lens sitting too far to the front.

:gj: Very vell balanced colors. Anyone who's tried taking beamshots know how difficult it is to get them to look like they do to your eyes. This is ESPECIALLY true when comparing 3 "blue" range colors in the same photo. I am saving this pic for future reference of the diff between the 400's...

Pics of what, sir? It may be hard to see, but there is a link in my 1st sentence to the thread where I bought this laser. Other than that I didn't do anything cool to take pics off.:) Yes, I think I understand the operation of DPSS lasers. What you described is exactly how the laser behaves...

Bought a 40mW LPM verified 532nm pointer from this thread. It is powered by a single AAA battery, and came with a AAA primary from the seller. The laser has an impressive visible beam, the dot is TEM00, little to no splash. Typical run-time is ~5m, see the rest of this post for more info. I...

I apologize, I was actually wrong about that.:o Sky and sun color are due to Rayleigh scattering, like was mentioned.

The light goes is straight lines in glass. There is one point of bending where it enters, air and glass have a different refractive index. When light encounters the glass for the first time it will bend at a specific angle. It will go through the glass straight until it hits the end of glass...

Oh ok, that's a big heatsink and sounds good for this voltage drop. Hmm, did you have a pot in the circuit? What about capacitors? Both can cause problems, I killed 2 LOC's using a pot, then switched to just a 3 Ohm resistor. Post some pics and draw your circuit, this will help a lot.

Same thing that creates mirages, the atmosphere bends the light and you can see object that are beyond your horizon. The air is not uniform, there is a big change in temperature and density with altitude, also local atmospheric conditions will have an effect. The result is that the air acts as...

If you dropped 12V to 7.5V with the first LM317, how hot did it get? Did you have it heatsinked?

How do you plan to go about making your batteries weaker? And how do you even know how weak the batteries need to be? If your batteries are so low that it's affecting the output of the laser, then you are almost done using it anyway, it will be completely off very soon. What exactly are you...

This is my very first successful portable laser build! There are links in my signature (the letters 'DIY' are the links) to the albums. I thought I'd post it up in a thread and have some more info. A huge thanx to everyone on #laserchat and here who helped me get this working!:beer: Videos...

Congrats on a 1st working laser! Very nicely done, and especially for a first electronics project, not just a first laser. Too bad about your head/heatsink that you can't use anymore.:( At 250mA the LOC should be OK in just the Aixiz, but with relatively short cycles. How hot does it get and...

Are you looking for AC operated or battery?

Same thing with extension tube included for a little less. I'm buying this to build me one of these.:) DealExtreme: $13.55 UltraFire Cree C3 Flashlight with 2xAA Extension Tube Bundle

I think the OP needs to post a picture of the switch, we need more info:)

Matt, you're killing me, I think I already know that I'll want the new focusable head host! I JUST got the email that my Apollo shipped too.:) What will you call it?

It should not be hard. If anything doesn't work, just take and post lots of pictures to let people see what you're doing. Everyone here will be glad to help, especially if it means helping a cheap source of known power lasers. I'm very interested to see your results, and big props on trying...