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Hello, I bought it, before I joined this forum. best regards Edgar

Hello, I have a 1 cm thick graphite plate. Thats hard to burn. best regards Edgar

Hello, I have the LPM from laserpointerstore: https://laserpointerstore.com/laser-power-meters/pocket-laser-power-meter best regards Edgar

Hello, I don`t think that I have poor lenses, all of them are AR coated and i use special lenses for green laser. Maybe my cheap LPM don`t like green laser. I can not test the remaining diodes at this current without pressing them into heat sinks. best regards Edgar

Hello, Didn‘t you see my photo with the number? best regards Edgar

Hello, today I set the driver to 280 mA. The color is nice green with a blueish tint. But the output is poor. I only get 70 mW with a glas lens. I can not find a binning on this diode, but I think it ist a poor one. best regards Edgar

Hello, I will set it to 280 mA like the 488 nm diode. I thought , it could not take this current, because it is a 35 mW diode. best regards Edgar

Hello, at 100 mA this diode looks green. But direct compared to my 532 laser, it looked bluish green. I am not able to see absolute colors! For example my 488 nm laser looks babyblue to my. But in an direct comparison with my 450 nm laser it turns . greenish in a split of a second. Did you...

Hello, so I will drive the diode harder. I bought 4 of them, one can be used for a test run. best regards Edgar

Hello, I had to learn, that I had no 500 mA driver left. So I set a LM 317 to 60 mA. The diode was very dim, but gets much better at 100mA. It was hard to see, that the LM317 did not regulate with this diode at 8,4V. The voltage drop of the diode is too high. Tomorrow I will desolder the 500...

Hello, here copmes the number:

Hello, what kind of Driver you will built, a linear Driver? best regards Edgar

Hello, today my cheap 505nm sharp diodes from Dongguan blue universe arrived. I will press one diode into a 12 mm DTR heat sink. I will use a 500 mA buck boost Driver and a nice convoy S2 host. How high can I drive this Diode without risk of sudden burn out? 200 mA or less? best regards...

Hello Building the Laser is part of the fun Best regards Edgar

Hello A mechanic lathe is fine. What helps alot are a frequency converter and a DRO for minimum two axis Best regards Edgar

Hello, I would buy a mechanic lathe. otherwise you have a new hobby and no Time left for Laser Best regards Edgar

Hello, I am very interested in this bigger lenses. Where can I buy this bigger lenses, especially the 12,75 mm lens? best regards Edgar

Hello, I got my green laser with no Name 18350 accus, 2000 mAh! After charging the empty accu I had a Charge of 200 mAh. Nice chinese trick. Now I buy Efest accus. I have somewhere seen a test, that they heve good capacity even under high load. best regards Edgar

Hello, today I set the current for my 488 nm diode to 280 mA. That beam looks nice, but I think, it changed a little more to green. I also could solve the problem with the strange behaviour or the driver. The current setting of of my power supply was too low. So I run into the current...

Hello, it is an 1000 W laser! Why do you copy this fake? real prices are here: https://de.aliexpress.com/popular/laser-rust-remove.html best regards Edgar