Here's a simple, cheap and powerful laser I built today. It puts out a stable 160mW over at least 5 minutes without ANY signs of warming. (be sure to scroll down the picture to see both lasers)
(the other laser is a mini dorcy mod I did that puts out about 115mW and is VERY stable over at...
I just found these - it will help with those pesky resistor calculations :)
(scroll down past the ads)
Here is the Aries 225 burning matches at 215 feet with the help of a Melles Griot beam expander and a 3" magnifying glass.
Sorry about the quality of the movie - I was holding the camers, the match and a magnifying glass... :-[
Red Laser Module - Focused Dot (3.5V~4.5V 9mm 5mW) $3.11
These are probably cheaper than AIXIZ modules. The diode may be crap, but at $3 each it can be removed and saved for later.
Use code "BULKRATE" in checkout for multiple units.
Here is a heatsink I am using for the mini dorcy.
The colored heatsinks were purchased on e-bay.
The internal heatsink was made by placing the "glass" end of the dorcy head down onto a piece of aluminum foil and melting about 3/8" of non-rosin core solder into it.
I then placed 10 US...
updated - here is where I found mine... (to save you the trouble of reading this whole thread...)
For TO-92, TO-18, TO-5, or TO-72 Devices.
PC Mounting. 1/4" Diameter X 1/4" High
anyone know where I can get some...
I'm thinking about making a low divergence add on for my Aries (the same principles can be used for other lasers)
Basically, I would get a "cap" 1.5" in diameter and add an achromatic or plano convex lens to it (flatter side toward the beam...
This is a 2 CR123 cell holder I made out of PVC pipe, wire, nuts, washers, and solder. It is all 3/4" PVC (and nonconductive except at the terminals) Cost - maybe $5 and it can be extended or shortened for more or fewer cells by changing the center tube.
I was a little tired of my DX-200mW heating up and a little jealous of these guys with lathes so I decided to make my own heatsink. I used a wire brush and sandpaper to get the rubberized coating off the laser where the heatsink would go. Then I slid some o-rings onto the body followed placing...
A recent idea. I have bought some AA to C cell adaptors on e-bay and used e2 Lithiums in my Aries. It does work and gives a slight bump in power with a little better stability than alkalines. The tradeoff is operation time - the AA cells last about 8 minutes.
Hey guys, I've been posting here a while and have problems with a few things. It may already be described - I haven't found a good reference yet though...
First, can someone white up a decent, brief explanation of how they get multiple pics in one post.
Second, I'm trying to import a new...
has anyone seen c-cell lithium batteries? I haven't.
Also, there are AA to C cell adaptors (for sale on CPF). Has anyone tried to use them with AA lithium batteries in a high powered laser?? Any thoughts on this??
I just received my 200mW DX green laser this morning. The graph below shows output using standard alkies that it arrived with. After about 70 Seconds, I flipped the (http://www.optics-online.com/irc.asp) IRC21 IR filter into place and the IR was blocked resulting in a significant decrease in...