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  1. Borislav@87

    Question about this driver

    Hello. I bought 3 of these drivers and am interested to see how they perform. Does anyone have experience with them?
  2. Borislav@87

    Lasers arrays at a very good price

    Не знам защо не можеш да го отвориш. Те работят за мен. А моите са от Aliexpress и Ebay https://de.aliexpress.com/item/1005005906526822.html?srcSns=sns_Copy&spreadType=socialShare&bizType=ProductDetail&social_params=21272589986&aff_fcid=22c4d5474edd4d5f86a2ca8ea44fdcd6-1...
  3. Borislav@87

    Lasers arrays at a very good price

    Hello. I came across this seller on Aliexpress and noticed that the laser array prices are very good. They may have been used, but I can't tell. If the topic does not follow the rules, please remove it. I have nothing to do with Aliexpress. Just found this amazing item on AliExpress. Check...
  4. Borislav@87

    My Furst Custom laser 7W+ NUBM0E

    I don't use safety glasses. Even with my current 75W+ I just watch where I shine. You will hardly find NUBM0E anymore. His successor is NUBM0F
  5. Borislav@87

    New Laser gun 75W+

    Everything is ready. I expect to receive the NUBM38 array this week and have everything wired up and set up. We made a plastic one that I glued to the fan and I clamped it to the drill. I took some pictures to see how it would look.
  6. Borislav@87

    Blue laser 74W NUBM35 Portabl?

    Today I installed a new active cooling with dimensions of 150/69/36mm with 2 fans. At 4A current, I can say that I am very satisfied with the result. It is very important for me that after stopping work, the temperature drops very quickly. With the front radiator, this was impossible.
  7. Borislav@87

    New Laser gun 75W+

    @RedCowboy Yes, I will share impressions of NUBM37. I expect more power at close range. At 4A it will probably go up to over 150w. I think a 200mm radiator with 3 fans will do for 1 minute of non-stop work. I will put a thermal switch at 70C and an electronic thermometer to see the current...
  8. Borislav@87

    New Laser gun 75W+

    @RedCowboy Today I bought another laser array, but this time it's NUBM37 / 125W. I also bought 2 of these 900w converters. As I will use one of them to power the NUBM37. But that will be a new topic. For cooling I will use one of these radiators. I will take the size 200mm, and there will...
  9. Borislav@87

    New Laser gun 75W+

    Today I was able to do these things on the body. I put in the converter, there will be a second one for the fan. The wires to the diode and fan will go through the top of the body. Tomorrow I will do the element for attaching the radiator to the body.
  10. Borislav@87

    New Laser gun 75W+

    I disassembled the screwdriver. There is enough room inside to put the converter, and I will also put another small one for the fan, because it will run on 15 volts. I'm going to put another switch, because this one increases the current according to the pressure. That's it for now. I'm...
  11. Borislav@87

    New Laser gun 75W+

    @RedCowboy I want to make something similar and compact like this laser.
  12. Borislav@87

    New Laser gun 75W+

    This one will surely be better. I haven't had any problems so far with the current ones. In my case, it cannot heat up because I very rarely use the laser and always in short intervals. I've glued it to an aluminum radiator if it gets hot. But until moments it didn't happen. I also ordered...
  13. Borislav@87

    New Laser gun 75W+

    Any info on what the difference is though? or are the same diodes and lens as the NUBM35
  14. Borislav@87

    New Laser gun 75W+

    Hello. Winter is coming and I'm starting another project. This time I decided to make a laser gun out of a screwdriver. I bought a new battery 20V/4Ah, body damaged screwdriver. I will be using the same 600w boost converters that I used for the previous such laser. This time instead of a...
  15. Borislav@87

    NUBM0F

    Some diodes are brighter than others for the same current 3.7А
  16. Borislav@87

    NUBM0F

    Probably yes, but I was doing a test at an outside temperature of 22 degrees, the host kept about 45 degrees at 3.5A current. They have thermal protection so it cannot overheat. If for some reason it exceeds 70 degrees, the circuit will break for a while
  17. Borislav@87

    NUBM0F

    I had uploaded pictures before. Nothing complicated to do. Nothing needs to be done manually. Just a slight redesign of the box. All 15 pcs will be will be placed in a beach resort and will be directed upwards. So they will glow for about 6 hours.
  18. Borislav@87

    NUBM0F

    I received 15pcs NUBM0F. Protected diodes. They will be mounted in boxes soon and I will be running 3.5A with active cooling for light show purposes
  19. Borislav@87

    Blue laser 74W NUBM35 Portabl?

    I can not tell you. I am yet to experiment. I will mainly use it to remove the collected temperature from the aluminum heatsink, because in my case it is quite large and takes more time to cool down. That will help for sure
  20. Borislav@87

    Blue laser 74W NUBM35 Portabl?

    You can view them here. I will install a weak 12704, since I also ordered 12709. https://a.aliexpress.com/_mtcff7w Description : Get ice cold in minutes or heat to boiling by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even...


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