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It must be almost a year since I saw on LPF last story about making a big torch with 100W power. These things were started by Styro, then by Trinh and then Smackitup has posted pics of his portable working from 1200W driver. But since then, no new builds... until last week when Kcc posted a YT...

These new Nichia MDP blocks are very addictive, they made me totally stop my projects of last years with combining all diodes in NUBM08/44 blocks into one strong low divergency beam, and now I want to check if it is possible to combine 2 or 4 of these NUBM31/36 and obtain 200-400W beam packs. I...

PLease write your experience with this driver! Mine was very bad - capacitor E5 burned after 1 min of charge. I guessed from start that boosting from 12V to 85-100V, 3A was a very bad idea of driver design at all - now I have a confirmation. Likevii - what driver are you using for your set up...

This is to continue the old thread with proper name of the chip what was not on ebay 1 year ago when I got it from taobao and started playing: https://laserpointerforums.com/threads/osram-60w-multilaser-chip-with-24-beams-jlm450nm.106325/ Now its commercial name is PLPM4L. In an attempt to make...

Not sure if anyone is still interested in powerful lasers in the current political situation, but I have more pictures today. Here I have purchased NUBM38 which is smaller than NUBM31 and it also produces a smaller spot on the wall while its 75W power is not much less than 95W. If the beam is...

Recently I have stated a new project to try a different technical solution for the Pack of beams divergence problem. Here I have tried to find the best use of cylindricals received some months ago from last GB organised by CDBeam. I have that device made of 2xNUBM08 blocks from techhood which...

Does anyone know what it is? I mean this set...

Finally received the Multi laser chip apparently made in China by Osram. It looks very similar to NUBM31T but unlike that one cannot be found on ebay, aliexpress nor taobao. I read that this kind of devices are called Butterfly chips. This one comes from Alibaba (I paid 240EUR for it) and was...

The question what to do with rectangular spot from some of NUBM08 and NUGM03 diodes while keping the original G-ball in place has been mentioned several times here. I remember that one LPF member managed to decollimate the beam passing through another G-ball lens (removed from elsewhere) and...

Yes, me too always wanted to make a focused burner like this one: but regarding how much it would consume with all NUBM44 diodes I have first tought to build a smaller similar thing with lower consuming 405nm diodes. The original idea was to try with BDR-209 single modes because of the high...

Sometimes I see talks about using TECs to cool high power lasers but no one gave here any info about numbers - TEC efficiency, consumption etc. And apparenly there is no specifc thread about TECs on LPF. So sometimes I do experiments to mesure these numbers. Just for fun but for info as well...

Some yaers ago I was thinking about making a portable torch with 4+ combined LDs of a NUBM44 type or similar power. Alaskan and RC made some suggestions to me at start and here is where I am: Since the power consumption of such a combination would be >50W the inputs for such a host would be: -...

Hi guys, Could anyone of you teach me how to scratch the small 1mm thick FS mirrors from the Knife edge part of A-130 light engine? They look like Al coated mirrors. I kept the mount 1 week in each water, acetone, ethanol and toluene, warmed up in boiling water but they did not debond from the...

Hi This thread as another continuation of that one called "Gatling laser": https://laserpointerforums.com/threads/laser-gatling-getting-8-corrected-parallel-beams-from-nubm08-block.103840/ but here my next project will be to correct 7 collimated beams from an intact NUBM44 block with closed...

Hi, in this thread I want to summarize the experiments with aim to construct a 50W "laser cannon" build. This was result of thinking about what one can do with a virgin NUBM08 block. How would you like to call this baby? You can consider this thread as a continuation of that one called "Gatling...

Here I have finished the long expected device to combine 4 beams from Sharp GH04W10AGC diodes in the old fashioned Lasertack micro-KE beam combiner! These are not new diodes DTR is selling now but still the old ones what Hakzaw extracted for me from used Junktronix modules. Old fashioned I mean...

I have purchased a used TK75 from ebay and wanted to open the head and discard the LEDs. But it does not unscrew. Has anyone used this thing as laser host before? Any clue how to open he head? I was interested in this host because of big diameter - almost 75mm heatsink with many modules (and...

Hi, Searching in ali I ran into this seller of UV curing modules for 3D printers. The LEDs here look different from ones in 100W LED I used to play with earlier. In description/specs stands efficiency 96% and working temp 26.7-30ºC..."very low heat generating" (250W unit!) What could it mean...

I have a question to the members knowing different kinds of plugs and connectors for curcuits: What kind of 8-pin sockets are there on (used) Nichia blocks sold in ebay and where can I find the right plugs for those?

CDBEAM reported that the divergence of this 9mm red LD is awful and yes it is but since I have them I decided to combine (Alaskan, you asked someone to try this, here I am). First subject was cooling: These red things like cold to perform and deadshadow has made a portable with TEC cooled P73...