Search results

Ah, okay. Thanks, guys.

When I first purchased an empty aixiz housing for my 650nm laser build, the acrylic lens that came with it had a sizable scratch on the front. I then decided to purchase a glass lens (non-coated) from aixiz on Ebay. When I got the glass lens, I screwed it into the lens cap from the housing...

Hey everybody. I'm new to this whole thing and this is my very first build, ever. I decided to get into this whole thing when I read an article talking about how the lasers inside DVD burners were class 3b lasers. I thought it would be a small, fun project to do. So, I'm basically wondering...

So you're talking about having a fixed resistor in parallel with the POT apart from the other fixed resistor already there to set a maximum current? I'm sorry, I'm not exactly an electrical major. :cryyy: And yeah, I kinda wanted to be able to regulate the current between ~150-300mA for...

So if I use a lower value 1/4W pot such as 50 ohms, it will be less likely to burn out, right?

Yeah, I think it's open. I don't understand how it would fry that easily, since it's a 1/4 watt POT and I've never gone over 300mA on this particular circuit. I ramped up ludicrous current up to 3 amps on a previous prototype circuit I built, and the same exact potentiometer from the same...

I'm new to this whole thing (still not done with my first build yet), and I don't plan on losing my eyesight anytime soon. I take DMM readings with the actual laser diode on, because my test load isn't really all that accurate. Wearing laser goggles completely blocks out the uncollimated...

Ah, thanks. I checked, and it was the POT. It jumps down to ~nothing from ~3.2 ohms if you so much as touch it. I didn't have any lower value POTS at the time, and I figured 200 ohms would be fine. :p

I'm new to building lasers, and this is my very first build. I'm making a small laser burner out of a diode I pulled out of an old, broken 16x DVD burner. So I constructed my driver and test load according to the instructions on this site, which I found extremely helpful. The only way my...