Mini-Blu 405nm

Hello,

Below are some pictures of my new mini blu-ray laser. This build consists of a 15X50mm module, PHR-805T, Flexdrive, RS mini switch, Aixiz module (cut for thread and switch housing), 1 X 10440 battery, and 3 pieces of K & S brass tube (#137, #138, #139).

Similar to my last 532 pen build, I used 3 sizes of brass tubing from a local hardware store. I drilled out the back of the 15X50mm module to allow me to JB Weld the smaller (#137 tube) inside for a nice solid fit, then used the #138 and #139 sections staggered over one another to give me the 12mm clearence for the 12mm access module for threading the switch.

The build is really small (3-3/4") and with the way I created the modular front section, I can now swap for other wavelengths (660nm 250mw, 445nm 500mw, etc) by just screwing on pre-built modules. I set this 405nm to 140ma, so I estimate I should be getting around 100mw +/-10. Still no LPM, but it burns paper and lights matches really fast.

This was my first time using the 15X50mm module. They are really nice and very good heat sink. Reminds me of the old Buck Rogers ray guns. I like the screw fitting for the diode mount, but since the head is so large, the lens sits way back inside the front of the housing making it hard to focus on the fly. I had to make a small set key to use to turn the lens.

Flexdrive = $25, Diode = $10, Other parts: ~ $10, Satisfaction of making something cool and having it work = priceless.

Hope you like it.

What did you use as a switch/button? That's ingenious!

That's really cool. Now all you need is some heat shrink tubing or something for the body.

Thanks!

I found some little momentary switches at Radio Shack (here). Cut the wire hole end off the Aixiz module and used it for tube threads in the host. A 10440 battery will fit through it. Cut the diode end in 1/2, shortening it so I could press the button all the way. Opened up the diode mount hole slightly to allow the switch to fit through, if done slow, you can get it to screw in tight and the little nut fits inside the end of the module for tightening. This gives you a screw cap end with a momentary switch to allow for battery access.

Here is a closeup of a finished switch module...


For the green one, I included a diode in the cap as well, since it was a 3V 532nm module.

These modules are easily glued with JB Weld in the end of the #139 brass tubing. I made a small red laser as well with an Aixiz module glued in both ends (one for switch and one for diode). Since they are threaded you easily can swap out with other wavelenghts. Just need to build little modules.

Here is the red pen I built...

ENX said:

Thanks!

I found some little momentary switches at Radio Shack (here). Cut the wire hole end off the Aixiz module and used it for tube threads in the host. A 10440 battery will fit through it. Cut the diode end in 1/2, shortening it so I could press the button all the way. Opened up the diode mount hole slightly to allow the switch to fit through, if done slow, you can get it to screw in tight and the little nut fits inside the end of the module for tightening. This gives you a screw cap end with a momentary switch to allow for battery access.

Click to expand...

That's really rather clever. . .