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There are examples of what I'm talking about here : Red Laser Module - Focused Cross (3.5V~4.5V 16mm 5mW) Images uploaded by lukasandrysik 5pcs 650nm 5mW 5v Red Laser Cross Module Glass Lens Focusable Industrial Class | eBay That cross lens is only spreading the beam by about 60 degrees. If I...

Oops, I meant wider than 60 degree wherever I said 90 degree, sorry. Actually these lenses go up to 120 degrees : 5pcs 120° Line Tips/Len for Laser Module Housing (1230) M9*0.5 But my problem with using crosses instead of lines is that all the crosses I've seen only do 60 degrees. In fact...

Alright, thanks. I'll try placing small springs around the leads on the next few, see if they hold up better. Any idea about cross diffraction gratings with beam angles larger than 90 degrees?

Alright, thanks guys! No lasers though fiber options then. :) I also bought smaller reds that (a) expose the solder points on a circuit board and (b) cannot easily mount a diffraction grating. 2~5mW Dot Red Laser Module (5-Pack/3V) - Free Shipping - DealExtreme If I found a way to mount a...

Anyone know an inexpensive 10ish way beam splitter to which I can attach PMMA fiber optic lines? I wear about 8-10 red lasers with line diffraction gratings at events like Burning Man. I want to replace my current setup with one based on fiber optics for various reasons : - 5mW red lasers...

Ahh cool, thanks. Yes, ideally I'll find a suitable cheap AAA driven pointer. Thanks!

Yes, I'll read up on the TLC5940, thanks! I honestly hadn't even considered greyscale, but that'd be cool. I've built belt that projects lines onto the ground for burner events, raves, etc. I'm interested in adding some sequencing based effects such as a rotating triangle.

I'm fine with any color besides green, which conflicts with my theme. Red is fine. Very good idea, exactly the sort of low budget solution I'm looking for. Thanks! I've another backup plan of just gluing the standard metal DG holder onto the front of a cheap laser pointer as well, but...

I'm interested controlling a number of inexpensive laser modules as an in an addressable fashion using an Arduino or similar. Any easy tricks for making the lasers addressable? Any suggestions for a wire with addressable 3V out lines spaced evenly along its length? Maybe buy an inexpensive...

How can I determine if a laser pointer sold online can easily mount a diffraction grating like the ones sold at laserlands.net? I'm searching for the cheapest 5mW laser pointers that do not require modification to mount such lenses, ideally around $3 each. Any thoughts? I've easily mounted...