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Hello, I finished my adapter for the beam expander. Without the M11,5*0,5 mm cutter, it was more work than I expected. When I havew to do this again, I would turn the thread down to 11,0 mm and glue it into the M9*0,5 mm adapter. With the beam expander, my 638 nm Laser looks nice, but the beam...

Hello, thank you very much for your support. I will built an Adapter M11,5 to 9 mm from brass or stainless steel. My lathe is prepared since days to cut the 0,5 mm thread. Meanwhile, I noticed, that the sanwu thread is not strange. It is a m11,5*0,5 mm from the Iso 13-3 series. At ebay they...

Hello, today I got my 3* beamexpander with that strange M11,44*0,5 thread. Is this beam Expander used together with a lense or without? At the moment, i have no real idea, how to connect this expander with my homemade lasers. The problem is, that the thread is very short. It will be very...

Hello, I also tested an 0 to 300 mA Driver from Odic Force. It works well at 5 V test load, but it will not regulate at 5,5 V. I will see, how this Driver works with the new diodes (on the way from China) best regards Edgar

Hello, i think my 4500 mA driver is also dead. At a 5 V test load, the current swings between 400 mA and over 1000 mA. Today I got some driver from Odic Force. The 0 to 1600 mA driver has an output between 330 mA and 600 mA! So it is useless for the 488 nm diode. What driver will work with this...

Hello, I paid 32 € for two diodes. Thanks for the link. I will check this seller. best regards Edgar

Hello, the Driver was set to 200 mA, with my test load. Every thing was fine, until I decided to increase the current a little bit, with the the laser Diode connected . This was the big mistake. I am sure, some of you know the feeling, when your money is suddenly blown with the wind and you...

Hallo, I ordered some new Drivers, also some from x-wossee. It was my mistake to drive a low power Diode with an 4500 mA Driver. Lesson learned! Today I will test, if the Driver is still ok. best regards Edgar

Hello, I ordered 505 nm diodes from Techhood. Does anyone of you have experience with this wavelength? I also ordered a new sharp 490 nm Diode, because I killed mine with the wrong Driver. A little turn of the potentiometer of the big Driver gives the Diode approx. 1000 mA for the split of a...

Hello, as promised, i finished my 490 nm laser today. Becuase i hate the look of lenses at the front of the laser, I made a 30 mm nut with 9*0,5 mm thread to fix and hide the lense. The spot is very tight with a chinese glas lense, tighter than i would expect. Attached some photos of the...

Hello, I think the Problem is relativ simple. For example, you will drive a laser Diode with 1 Watt power Output. The Efficiency of your Diode is 33,3 %. So you need 3 W to drive your laser. On the other side, you have your non linear laser Driver with an Efficiency of 90 %. So your Batterie...

Hello, not a big problem. It was only a loss of money, but a gain of knowledge. I killed the Driver with the test load. , not with the Diode. Be sure, that next time I will test the connections to the load before the Driver gets a power Input. I knew before. that this Drivers don`t like open...

Hallo, I could not finish my 490 nm Laser today, because I noticed that my cheap chinese laser drivers don not go below 500 mA. After that, I tried to fix my 4500 mA buck driver at 200 mA. Unfortunately one wire of my test load had a bad solder. So I learned it the hard way, that this kind of...

Hello, thank you for this Information. I stopped this Project for a while, although the fit of the module in the heatsink is very poor. At the Moment i build a 490 nm laser with the DTR Diode the DTR heatsink and an Ultrafire host. But first, I must test, if my driver can be regulated down to...

Hello, I like the look of this yellow insulating tape. (joking) Why does Sanwu use 4 wires for the laser Diode? An interesting look into an industrial made laserpointer. Thank you for this Information. best regards Edgar

Hello, where are the cheap 465 diodes? Do you have a link? best regards Edgar

Hello, I will take a photo this evening, It is a closed heatsink with a Little hole in the back for the two wires. It is impossible to get the Diode out without opening this heat sink. The module Looks similar to this module: but I am unable to open it...

Hallo, some month ago, I bought this nice blue laser module: https://www.ebay.de/itm/Focusable-465-470nm-3500mW-Blue-Laser-Module-Analogue-Modulation-For-Laser-Light/262580156386?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Now I would like to build a laserpointer from this...

Hello, sorry, I checked the DTR modul again. The tread is between 16,83 mm and 16,9 mm. So it will be a 17*0,5 mm thread. That is not so exotic. best regards Edgar

Hello, i will see what to do, when the beam expander arrives. Maybe it is easier to modify my homemade heatsinks to 11,4*0,5 mm. With the wright tap, it would be the way to go. On the other side, it is easy to make an outside thread with the lathe. And going from 11,4 mm to 11,0 mm is only a...