Search results

Well, many packages from China are declared as electronics with a value less than $100 to avoid any duties, regardless of the actual value of the product. In essence, they're lying about the prices. LaserGlow, in line with their outrageously high markups, may just be trying to weasel more...

Though make sure it's not actually raining. Those drops can reflect the light back into your eyes.

Yeah, from what I remember, some of those Chinese G-type lenses (e.g. from O-like) are already flush with the very end of the lens holder. For the two modules, what I was thinking was that the second holder would allow the extended can to reach somewhat into the lens barrel itself, offsetting...

If you have an outer heatsink for 12mm modules you can try flipping the diode around so that it extends out the back of your module (instead of towards the lens threading). Then use a second module with the lens, and you can position it as close as needed to the diode that is sticking out.

That was the thing though, I did try that. I even posted a guide for the Windows settings to enable all channels. However, later I got word back from Hemlock_Mike that he still couldn't get all the channels out of the sound card DAC. So I went back and checked and he was right. Maybe only...

Many cheap grow lights are built using 635nm LEDs, instead of the more expensive 660nm LEDs, that are meant for lighting, but aren't so suited for chlorophyll (A) absorption. The ~655nm red lasers might do a good job though. If you were doing a growing operation, the power costs might justify...

Just gotta say that I really love the Laser Shirt I got from the last GB. Thanks for creating them!

Looks great! That glue is badass too!

It's probably just a regular ol' red laser diode with a line-generating optic on the front to create a line. I doubt that there is anything special about it other than the housing that was made to fit into the saw, and maybe that line-generating optic.

If you know the distance that you're going to project towards is far enough away, those 532nm lasers often have enough divergence that they're a large dot by the time they hit the target, reducing the power density. At about 30ft the tiny 2mm beam had grown to a centimeter in diameter which...

Yeah, it's not our fault that we want to rep the same people! They deserve it! Maybe it should just have a cool-down timer.

Those 12x30mm modules, also called "AixiZ" modules, are just a common lens diode + lens holder. DTR offers diodes pre-pressed and wired in such modules, and it makes it easy for people to fit into larger heatsinks, usually held in place with a set screw or something like that. The modules are...

Yeah, I was basing that on the EtherDream, but yeah, that FB2/FB3 can cost quite a bit. The software component is another part of it of course. Yeah, the RPi(2) works just fine. In fact, the CMedia driver for Linux seems to work a lot better than on Windows. Hemlock_Mike had some problems...

Aren't ready-made DACs like $200 each or so? I've built sound card DACs for about $40-50 in parts. Tack on another $50 for a portable computer like a Raspberry Pi + case.

Since you already have a UV source, get a bottle of CRL UV adhesive (30g/$16 available on Amazon) rather than the "As Seen on TV" Bondic stick that gives you far less (4g+light/$20, or 4g/$10 refill) for a higher price.

Oh I didn't realize OptLasers now carries those waveplates. You'd probably be better off getting those from OptLasers (PM him for the 10% discount) than some HeNe waveplate from an eBay seller. You can get his set of cylindrical optics too, which are pretty decent. I've bought the...

With the 1/2 waveplate, the shape of the beam is kept the same, but the polarization is rotated 90 degrees. Flipping 180 degrees wouldn't do anything anyway; it'd have the effect of returning the polarization back to its original. The polarized beam cubes pass with one polarization, and...

Mine arrived! I was surprised by just how much smaller they are compared to the ones hey're much smaller than those ones from Tomorrow Systems. Now to find out how to mount these nicely... Thanks a lot for your help in arranging this GB!

I have a DSLR, and a decent assortment of lenses, but I don't use it because it's a pain in the ass to bring around with me. The most important camera will be the one that you have with you. If that means always having a camera bag, or some bulky thing around my neck, I might as well not even...

I killed off the November reminder update using GWX. The last thing I want is Windows trashing my main desktop. On my laptop I've had to go through a bit of effort to rid myself of Microsoft's automatic updates. I'm still not sure if it's all gone or if it'll come back. It came to a head...