Here’s another fantastic tutorial from Jay, a DIY lasers expert. See all of our DIY Laser Projects. I modified this verynice Stainless Steel flashlight into a 50mW green laser. It is very heavy duty, and super small. Below, I will show the modifications that have been made to the host and module. Important: This is a class 3B laser and should be used with care. Proper eye protection for 532nm wavelength recommended. It can instantly damage the eye if it is pointed directly into the eye. Even reflections can cause eye damage.
Here are the pictures that show the modifications:


These are all the basic parts you really need for the project. It’s a super simple setup really, just the laser module, the battery, and housing. That’s it!

The only major modification I had to make is to simply shorten the barrel of the laser. A simple mod to get everything to fit in our steel housing.


Final Results:

It is a very heavy and solid design with good heatsinking for the module. This design offers the option of using CR2 primaries, or RCR2 rechargeable batteries. I am using a CR2 primary and am very happy with the results, so I will not need to push the module with the slightly higher voltage that the rechargeable battery has. More Exceptional Laser Projects:






































October 9th, 2009
wow,the beam is really strong contrast to its body.I decide to buy a laser diode from http://www.freaklasers.com and do it myself.
October 9th, 2009
Keep in mind, this is using smoke for the beam shot…
October 16th, 2009
i wonder if this guy is selling those he already made
October 16th, 2009
I don’t believe so.
October 16th, 2009
I don’t sell complete lasers, but I sell kits on laserpointerforums:
http://laserpointerforums.com/f39/jayrob-build-kits-lenses-other-stuff-listed-here-44227.html
October 17th, 2009
looking for a highly visible preferably green 532n 50mw or more?
October 18th, 2009
Check out the link above in the article or look here: http://bit.ly/39G7dz
November 6th, 2009
Can you use the 130-150mW Module instead of the 50mW? I see from the web site that the 50mW is 57.7mm long and the 130-150mW is 62mm long. So can shorten the 130-150mW module down enough to fit the 49mm length?
November 7th, 2009
Yeah, you should be able to shorten it.
November 7th, 2009
I have a different kit for the normal length modules…
Check that list that I linked a couple of comments above. It is the ‘DIY Green kit’
October 15th, 2010
Another great post. I shared this on my Facebook – you should look at adding a “like” button to your blog.