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Re: First build in Aixiz module (not a cute laser) This laser is part of my legacy, it have a horrible dot, but burns very well at big distances. This is the point! I adjusted in a way that it goes from defocused to focused and will not defocus again, because at this point, the lens/focus...

Re: First build in Aixiz module (not a cute laser) Yes, is acrylic lens, this module is 12x35mm.

Re: First build in Aixiz module (not a cute laser) Thanks man! But my problem is exactly the inverse of this, I think is hard to explain in words, so, I made a simple diagram to help: About the rings in my 250mW laser, here is the reason: Objective lens with the diffractive surface for...

Re: First build in Aixiz module (not a cute laser) Thanks for all this replies! :yh: :yh: I'm very happy! :) I think was average, not too hard but not easy, for example, I modified the switch button and done the battery connector (a substitute of the battery spring) with one of the rubber...

Hi! :yh: After about 2 weeks I got some aixiz modules to start my new generation of lasers. This is my FIRST build with aixiz module, so, it don't looks so beautiful than my other DIY lasers. I used a 300mA linear driver from a dead green laser pointer, a gear as heatsink and PVC water pipe...

HI! :yh: Is a bit hard for me to give a good explanation, but let's try! No! I tried to use it backwards and I got a terrible spherical aberration, in a way that it can't focus to a little dot. I installed first the lens in the focus ring, and then, in the module, but at this point the beam...

Hi, thanks for the answers! In my case of the LPC-815, I wasn't able to adjust the lens in a way that at the start it will be focused, I used a sandpaper to cut a bit of the lens barrel in order to get the proper adjustment, and I was able to do this, but some of the dust from the plastic and...

Hi! After using much the lens/housing from DVD-RW to make my lasers, I decided to start in the aixiz modules world. To start, I got 5 of those modules and got a LPC-815 to play with it. I pressfitted (that word is right?) the LD in the place, screwed the lens on it and powered it on, but I got...

I'm a introvert too! Unless people are talking about a thing that I know, I prefer not talk. And, my patience to talk with persons is very small, If I see that the person isn't taking care of what I'm saying I simple stop talking. But I think I'm very good to talk with persons in text. I do...

One day I was burning stuff with my LPC815 laser using a big lens to focus the light and my laser suddenly died. I don't realized that the flat surface of the lens reflected the beam directly into the LD killing it instantly! Was my first casualty with optics! :shhh: --------------- Another...

I changed the minimum current to 300mA, at this current, the output is weak, but still lasing. Looking to the beam at low power I can see a lot of purple light together with a little amount of blue, at high power the beam is almost blue, but still a bit of purple light on it. I think this is...

Re: First 450nm build (with pics) Thanks! :beer: --------------- The LM338 have thermal protection? If yes, I can extend the max duty cycle for it. The laser heatsink don't heat much at full power, I think < 30ºC at 15 min of continuous run time is fine.

Re: First 450nm build (with pics) Thank you! :yh: Here some simple beam shots at night:

Re: First 450nm build (with pics) Thank you! Yes, was a fun build :yh: I was a bit impatient because of our customs scan that are slowwww!!!! I'll keep budget for my house. Now I see that the PLTB450 don't stay lasing at 200mA, when it's cold it lase, but when warm, it slowly goes to LED...

Re: First 450nm build (with pics) Thank you! Yes! Every part took 1 month to arrive (excluding weekends). Thank you! :beer: Now is night! Time to get some fun! :yh:

Here the conclusion of this project: First 450nm build (with pics)

Hello! :yh: Today I finished my 450nm laser! The decision of make a DIY laser was done here and the full project was developed here I got all the most important parts from China, with Aliexpress. All the parts took about 3 months to arrive! The LD is a PLTB450 of 1,4W, driven at 1,2A by a...

Sorry for your injury, I hope you get better, just let us informed. The only time I got hit by a laser beam was with a 532nm pen (fake 200mW), I accidentally pointed it to a window, and the beam reflected back to me, the window was just in front of me, was night and I was pointing to the trees...

Welcome to the forum! These 301/303 lasers are very good for learning. Isn't too powerful to make several injury if correctly used, but have enough power to do something that people like, like pop balloon, light match, etc... Leaves a trail into the air, reaches big distances, etc... And is...

Or, you can attach a perpetual magnet motor into a generator and get free energy from it!