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More like a free sample. This stuff isn't cheap, and I need to check if it's going to serve my purpose. So far I've been ignored, but I expected that. Meh. Nothing's ever simple, is it? Problem with galvos is, we don't need the laser to be fast, just precise. Have you considered piezoelectric...

I'm trying to negotiate some stuff frome Spot-A. BTW, where did you find a galvo array? I'm not quite sure how these are operated with a PC. Drivers are not impossible to make by yourself, but you should alway use a test load. Check OdicForce on how to make one. Remember that optics are as...

BTW, what resin are you using? I'm doing something similar.

Ah, so you're using galvanometric mirrors. Digital Micromirror Devices SLAs use the chip inside DLP (Digital Light Processing) projector to do the same.

Hey that's interesting! What's that, a custom made holder for a DMD unit?

Hey I found my old laser pointer! And it still works! You can see it in the pic attached. Guess I fried the others needlessly... Anyway, the driver configuration is similar to the second one I posted before, a LM 317, two 0.1 uF caps, one 10 uF and two resistors, 8.2 and 1K Ohm. It's driven by...

Thanks man, but yeah, the way things are here I'm better off learning how to do it by myself. Actually, no. I could have put it down better, what I meant is that I already made a driver with a 9V block battery to power a similar diode and obtained good results (i.e. it worked). I just read...

Oh well, I suppose stuff happens. BTW, when a diode LEDs (I don't actually know how to spell it) is there any particular sign you look for? Like, a flash of light? Or complete lack thereof? Well, I don't know if it lases or not. It just make a light so feeble that I was only able to see it in...

Well, isn't that a weight off my mind? Anyway, I have to ask: why do you think it failed to work? I mean, these circuits worked the first time around, and I did follow the schematics, I'm pretty sure of that, so what would be your guess?

Uuuh... I should probably go with what I didn't use, it would be shorter. Anyway, in no particular order, I used: Two AA batteries in series, for a total of about 3.2 V. This made the diodes lase The two aforementioned circuits, powered by a 9V battery The 9V battery alone (I know, dumb, but...

Welp, there goes my faint hope of not having wasted money... I suppose I'll have to start from scratch. I tried yet another driver, the one from the guys that I think I bought the stuff from. It's been a while. Anyway, here it is: The diodes didn't lase with this setup either, so if you reckon...

Hello there, just another amateur trying to do things far beyond his ken. I just hope I don't end up wasting your time as well as mine.

Hello, first post here, I hope you gals and guys don't mind if I start right off the bat with an appeal for help. You see, I found in my assorted knickknacks a couple of laser diodes, Blu Rays I got from these guys a couple years back. I reckon they are the 405 nm, 150 mW variety I got around...