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I am wondering if there is a single lens that has a long focal length of 1 meter or more?

I assembled the laser today. He had a lot of nerves. I spent an hour trying to remove the array from the board because it is very likely that if force is used it will be damaged. Then I assembled everything, having previously set the driver, which was brand new, to 4A current. I just put...

Thanks for the reply. I will be testing them very soon

Thanks. Apparently they improved them. Because they used to have problems and damage the diodes. Probably old info. I will use them for NUBM0F. I think they will do well with him...

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

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...

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...

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

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.

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.

@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...

@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...

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.

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...

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

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...

Any info on what the difference is though? or are the same diodes and lens as the NUBM35

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...

Some diodes are brighter than others for the same current 3.7А

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