Recent content by Tuxifix

All right, thanks :)

I guess the part where the lens is mounted in will then become completely loose, right? Or is this like a sleeve that you can pull a millimeter off while they are still kind of attached?

Just a quick question, how do you remove the Gball lens from the NUBM08? Do you need to cut the housing, or can you pull some outer housing with the lens off the diode? I don't want to remove mine, but I thought about if it's possible pulling the lens 1mm or so further away from the actual diode...

You are absolutely right. I was just increasing the current till I saw light and switched it off within 2s. Then once more for the photo. The next time I run it will be in a proper heatsink which I do not have right now, but before buying one I wanted to make sure the diode works.

Hello fellow laser enthusiasts, I have kind of a stupid problem. Quite a while ago I got a defective blu-ray burner (from a Sony VGP-PRZ20A docking station), from which I saved the diode and threw everything else away. At that time I tried to test the diode, but failed probably because I was...

Ahh, I see! I was not aware these are just names given by DTR. Thank you all a lot for the explanation. :D

With less ideal focussing I mean aberations. Too bad, I already ordered the NUBM08. :confused: I will first see if this works for me, otherwise I might give the BDR-209 a try.

Hi fellow laser enthusiasts, stupid, quick question: what is a G2, G3... lens? I read that G2 is a single lens, G3 is a combination of three lenses and so on. However, I cannot find a definition of the different kinds of lenses (probably because the search does not allow to use two-digit...

Thanks for the recommendation! Unfortunately, I already just ordered a >4W NUBM08 for 30€, and see how far I can go with it. I guess even though the multimode diodes have a lower power density they are less susceptible to non-ideal focussing.

Thank you! I honestly need to take care, as I just ordered an eye-burning >4W NUBM8 diode. :cool: I mean, I know what I am doing, as well as most of you guys do. But the more I read through posts on this board the more shocked I am about how ridiculously dangerous some guys handle lasers here...

Well, this is embarrassing. There is the exact same question on that board. I can not imagine how I missed that. :oops: Thanks a lot for the hint. :) Apparently, 500mW 405nm or 1W 450nm with focal spots of 0.1mm are sufficient to remove the oxide coating. Best regards, Tuxifix

Fun fact: you can order an optical-tweezer kit from Thorlabs for only 8.000€ :giggle:

There certainly are. But unfortunately not a lot with diodes, and if so, no type of diode is mentioned. This is done with a 90W CO2 laser, which is not what I had in mind. But thanks for the link, anyway. ;)

Hi fellow laser enthusiasts, I already asked the question in my 'Welcome' thread, but I guess it is better to have a dedicated thread for this. Does anyone have experience with laser-marking or -engraving black anodized aluminum, i.e. removing the anodized layer to expose the bare aluminum? I...

Hi Encap, thanks for the link, but several 100€ is by far more than what I would like to spend on this project. They have interesting lasers, for sure, but a little too professional for the rare cases I will use the laser. Furthermore, I enjoy learning to build things on my own, from time to...