Search results

That's exactly what i'm talking about. That is a dead diode. Your driver has killed them.

Still waiting for the picture :)

When a LD dies it becomes more like a LED. It produces a weary dim light that looks nothing like laser beam.

The diode is dead. Give us a picture to confirm. Diodes are very sensitive. And what schematic did you use ? Better build a constant current regulator with a mosfet and an op amp then the crappy lm317. Edit: I see the schematic now. It's unstable and just not a good idea. Use this ...

Lower the current on your diode. If you don't understand what that means,you should do a lot of reading on how laser diodes work. It will be all clear then.

So...you want to trigger a marx generator with a 1000$+ laser?

The chip on the X drive. If it has a pwm enable pin,that could be used.

Seems legit. Wait for someones actual experience with that driver to respond. Stay cool :)

What diode will you be using? Cooling the diode and keeping it in the safe current range is the key(sense the diode will be working for long periods of time). I used a online program (shapeoko designer made it) to convert all Z commands to M3 and M4 commands for the laser. And also used...

I had fun with GRBL. What program are u using to generate Raster type G code? About the diode,your only concern is overshoot. I dont have experience with that driver,but it should work if designed correctly. If you have a oscilloscope,you can find out for your self :beer:

No worries bro. This is the best forum on the internet,you can find out anything that you need(also non laser related). Have fun! :)

IR is a spectrum of light (beyond 780nm). Infa Red. Lasers are single spectrum! You have probably read about DPSS lasers. DPSS-diode pumped solid state. They work by converting the spectrum. A DPSS green laser for exapmple works by having 808nm as a pump then going through a crystal to get...

Its all easy in theory,but actually building the whole thing? not that easy,been there,trust me. Not many people here are playing with such powerful lasers. Schematic that Diachi has provided can be used as a interrupter but not as a driver. Adding fets and transistor to lover down 12v to 2.2v...

Are you aware of the danger of what you are building ? I must ask,how old are you ? Do you have any electronic experience ? Building the power supply requires a lot of knowledge. Please think this trough. Also,the supply isn't really the hard part,cooling the diode will be a major task. And...

I did not see that... Listen to IonLaser,he has a point. My posts stand for CW diode mode only.

PowerMax PM3-100... That's one big puppy :) You need to open it up and see what kind of driver it has. Your goal is to modify the feedback circuitry. I honestly wouldn't touch that supply,its just so big and wonderful... :) Tahmid's blog (google it) is a nice way to learn basics of SMPS. When...

You will need around 2.2v at 80A for 100W 808nm. For the driver i would recommend building a Swich Mode Power Supply that can handle 200W. Its not as complicated as it seems. That would be my choice. The other solution is to use a computer power supply that can give as many amps as possible on...

CO2 would be your best choice. Cause other wavelengths will just be reflected.

You can get away with 1-2W 445nm,but for hi speed and precision,you need a correct wavelength and power to heat up the material very fast. From my experience,a 40w 808nm is still a bit to weak for hi speed and accuracy.

https://www.youtube.com/watch?v=KnyB9btlhS8 CO2(1000+nm) laser,or high power brick semiconductor type. Probably in the range of 50-100W.