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It's not the balloon popping that I'm concerned about, it's the beam divergence. I was just using that as an example. I suppose with the above you have answered my question. If I want THIS beam more focused it looks like I'll have to do it outside the host. For future reference, could you...

I have learned that it is only one diode since the original post and I understand about slow and fast axis now. I have a lens, several, in fact, because I wanted to see for myself the various results. At the moment I am using a G8. You can see it them on the emitting ends of the hosts in the...

It looks like it's made up of a line of squares, which is why I thought what I did. Thanks for pointing that out, learned something new. Still leaves me with the question about how they do it in all those videos. They still look like a spot clear across a room. From what I read, you CAN do...

Just finished my second assembly. Not really sure i can call it an "assembly" or "build", since most of the work was done by others - I just soldered the module into the host and tightened a screw :) Either way, here they are: Smaller one is a PLTB450B 1.6w 450nm. I did that one first before...

Again, thank you for the information. Seems like you've sent me down the right path! I have a lot more information to use to continue my own research, and it appears that some of it's just going to be some experimentation - which is part of the fun, right? One last question: on drivers you said...

BTW I found a really good article about collimating and focusing. Unfortunately I'm not yet allowed to post links

Just to ensure I'm understanding correctly: One of the posts in the longer thread referenced there is referring to "C-lenses" which from the context I'm guessing means "cylindrical" - if I'm understanding right, these can be used for spread in a single direction, meaning you could either create...

Thanks for pointing out those links, don't know how many times I read that page and missed them everytime. I've gone through a little of the threads and I'm still not fully understanding, but I'll finish reading and come back hopefully with more informed questions if I have any. Your answer...

So I'm poking around DTR's shop and I'm seeing options to select different drivers and lenses in the modules. So what I'm wondering is: how do you select those? What goes into deciding what driver to get (or make), and what lens to use? For example, what's the difference between G2 and G8? And...

Ok so I'm ordering the host and going to try putting everything together once I have that. Again, thanks for all the info, I have a much better idea what to do now!

Yeah, they were cheap, and as I said, I'm at the "don't know what I don't know" stage. I had no idea about the size differences or how specific housings/hosts could be. At this point, it's just messing with some junk to have some idea how things go together. Just from the responses here I have...

Just occurred to me that another possibility would be to drill out the hole so that the little 6mm module fits. I have 3 to play with, maybe I'll try that too.

Ah, thanks for the clarification. No wonder I can't find what I'm looking for. Still leaves me in the same place with those, though - no idea what to do with them. No worries if that's the case, they were pretty cheap. Maybe I'lll pull a couple apart just to see what's going on inside.

That almost appears like you're suggesting I skip messing with the 6mm plain diodes, then? I've searched quite a bit and I can't find any modules for 6mm - 5.6mm all over the place, but nothing for 6... I'm not necessarily looking for "cheapest", but I would like to get there without buying a...

I was looking at those already - but that still leaves me with: what do I do with it? So far the tutorials I've found have been more about the electronics. I'm sure I'm missing something but I haven't seen anything about how to assemble it into the host. Also, how to determine which one to get...

Please forgive my ignorance: but why not? And what would be more appropriate? If you're going to use batteries of some sort, what should you use?

Already think I may know part of the problem: I'm looking over the specs for the housing again and it says for "TO-18" - which appears to be different than what I have. So how do I determine (and find!) the right housing?

Maybe I'm missing it in my searches, but I'm having trouble finding how to do a simple assembly and how to work with housings. Maybe I've got some wrong ideas... I've started off with some cheap 3mW and 5mW lasers I found on Amazon - 40 for $13, so cheap things, just to play around with. I got...

For quite a while yesterday I was getting errors trying to access the forum. "has experienced a network protocol violation that cannot be repaired." on Firefox and ERR_CONNECTION_RESET on Edge. Was it only me, or was there a problem with the forum?

New here. I had a HeNe laser many ages ago (I think from Edmund Scientific but don't remember) that I remember messing with - as a pointer, prisms & various lenses, etc. Was curious about finding something again and stumbled across this forum. Lots of good info already, just from reading! See...