Recent content by shintashi

https://futurism.com/scientists-have-created-a-totally-new-type-of-laser-with-light-and-water-waves/ A bit fuzzy on what they are doing, but they appear to be pumping (like a diode or pump laser) around a section of water to create something entirely new.

i get the feeling the prices are artificially high as some sort of trade secret/patent thing. 3D printers used to be super expensive too, then the patents expired, and prices have dropped 1-2 orders of magnitude. if a prefab fiber is 5600-16000, shouldn't a kit be like 1800-4000 or less?

I've only built diode lasers outside of a class room. I presume CO2 is a gas laser (red/infra, right?), and YAG/Yttrium Doped are the Fiber lasers, and those are Solid states? Is there is a fiber laser kit i can use to cut down my costs? I used a 3D printer kit to DIY the printer, and...

Would something like this work? Newest 20W Desktop Potable Mini Fiber Laser Making Machine ENGRAVER Maker | eBay I found this company from them, listed here: Cole Technology Co.,Ltd. $5,600 is still horrifying, but more in the realm of Real than the Rofin that costs $61,000. I figured out...

lol you beat me to it. I should check my email more often. Lasers transform infrared into broadband white light - physicsworld.com I'm still not sure what the implications are, as I did one of those tl;dr skimming sessions, but it looks like we might be able to cheaply make white beam lasers...

those seem affordable, though 40 watts is pushing the envelop of whether i can cut precious metals (like writing names or phrases on jewelry), is it is true that I need 50 watts, and if so, does the price inflate like the Weimar Republic?

well let's just say i was interested in watch making until i saw these prices. Bergeon Lathes ($11,989.00-$35,136.00). I then abandoned watch making, despite being pretty good with gear arrangements and clockwork. I find anything below $300 to be affordable, anything below $1000 to be...

Hi! So I built this 3D printer last week, and designed a neat doodad in blender, but woe is me, for the doodad is going to require a resolution of about 0.08-0.1mm, while my printer is only 0.4mm resolution at a really slow speed. So I decided it might be better to just set the blank doodads...

for some reason that only seems reasonable up to certain thresholds. I get the feeling something like titanium and steel powder printers don't have beds heated to 2500F and 3125F respectively. I'm guessing they do something different. Here's a 100 Watt in action...

Expiry of Patents in 3D Printing Market to Decrease Product Costs and Increase Consumer Orientation - 3D Printing This is one of the things I was looking forward to happening. Complexity obviously a problem, heating up the powder also a problem. Power consumption not so much. Fiber lasers...

OK, so I got pretty heavy into electronics, 3D fabrication, and more recently, the little kits like Arduino/Genuino and Raspberry/Banana/Orange Pi. I like DIY projects, and I especially like to "stick it to the man" whenever possible in the $$$$$ department. As most of you know, Laser...

Good to know its the driver I have to concern myself with. Except for the day I burned a snow flake pattern in a handmade coin pouch for my Grandmother, I generally don't use class 4 laser pointers for more than about 30 seconds at a time.

Hi! I started doing some research to get really deep into electronics, formerly knowing almost nothing (solenoid piston motors are awesome!), and I tripped over something called Supercapacitors and Ultracapacitors. When i was working with lasers years ago, we used a lot of 3.7-ish batteries...

Mario is right, different colors of the same power supply will burn more or less efficiently. My purple lasers mW for mW burn most things better than my blue, and the red lasers I've made might as well be laser pointers used in the class room. Someone should make a chart of ignition times with...

50mW? More like 500mW Here's a video from youtube showing what to expect from 50mW green. 50mw laser FOCALPRICE.COM unboxing and testing - YouTube You'll find several people in this forum can build you a blue laser in 500mW range, but if your location has regulations (i.e. closer to 50mW...