To be honest, it seems way too small to be taken seriously, but hey any fiber laser at all Im here for it, this is an enjoy wood. M4 desktop fiber. Laser engraver, it is also sold, maybe even a bit more popularly, so under the atom stack brand. I bet both are equal internally in the specifications. This one just used to say 20 watt fiber laser, which would have put it in the same power level as the one weve looked at recently. Now they changed that to laser output, power 15 kilowatt. What what that is ridiculous, Im going to have to upgrade the wiring in my walls enter the circuit breakers just to feed this tiny desktop engraver, its 15 kilowatt, probably 20 or 30, even because these are never 100 energy efficient, yeah, no Im, not convinced. I would have even doubted their initial 20 watt claim, but hey Im always open to being surprised. Speaking of surprises, the included USB stick specifically. The file BSL software.rar is identified by a somewhat up to date, Windows Defender to have a virus Ive seen fault positives from Windows Defender before so not 100 sure it thinks its Whack Attack well Im on a disposable, later Panda Delta file system. So I think Im going to execute it regardless and just nuke it afterwards. There is no Linux or Mac software version on here, lightburn has announced in June 22 that PSL galvo based systems will be supported in the future, so there is hope.

But for now we are stuck with a virus suspected sea cat. It feels very similar to easycat 2, which most of these budget laser engravers use just 20 to 30 percent, less good, maybe fewer exotic functions and file import formats and weird UI placements, but it gets the job done fundamentally and it behaves roughly like a pulsed laser Too so thats a good first sign. In my opinion, one of the most important specifications is the minimal 30 micrometer line width to test that Im filling some squares with lines in the first one. The lines are at a 30 micrometer distance, so there should be no gaps for every subsequent Square. The distance is incremented by 10 micrometer, so we should be getting growing gaps starting at the second Square, and you know what Id be willing to give this a passing grade. The spot size really seems to be a 30 or 40 Micron in diameter, its nice, and it seems to be very round too because the performance doesnt change with the hatching angle, such a small spot size, is, of course, amazing for structuring an edge resist layer for Chemical etching of circuit board prototypes, for example, as an example. This is the top copper layer of the tiny fpga BX board, the smallest traces are 0.1 millimeter and they seem to come out nicely. My general opinion about this hasnt changed, though a few years ago. I would have exploded with excitement about this possibility.

Nowadays, Im just dead inside and dont get excited about anything anymore. Oh no, wait! There is something: okay, false alarm, a gorgeous result like this still does it. For me, it is in fact better than what I can utilize with a primitive at home, etching setup because of uneven flow of etchant over the exposed surfaces. The outermost areas are done sooner than the center and the ultra thin traces start to resolve away Sideways from. Under the mask, while we still have some work to do in the center, so they will be gone by the time the board is done, but yeah the enjoy would import it its part of the job brilliantly. I would just need a better etching system to take advantage of that heres the software side of this process in keycad I plot a copper layer and only a copper layer, not reference designators or values as a dxf file in millimeters in c catch. I go to the draw drop down menu and use the vector file tool to import the dxf file that weve just generated. It looks usable immediately, which is always a pleasant surprise for Intel software file transfers. But when trying to hatch non copper areas, only the VR holes get filled thats because only fully enclosed areas get filled and we dont have a barred outline. We can Rectify that by ungrouping all of these vectors and drawing a square around them. Then we regroup everything together with a new outline if you want to invert the areas that are filled by hatching just draw a second outline around the board.

When we try to hatch now we get the correct polarity, but all copper polygons get filled too. I think thats because of a limitation of decimal places in the vector file, the lines look like they meet, but they dont lead to exactly the same points down to the least significant digit that way c cat interprets the polygons as open. Luckily, it comes with an auto connect tool that makes ends meet if they are no further away from each other, then an adjustable threshold distance that takes a few minutes of processing time for this simple board and it behaves as if it has crashed in the meantime. But if you are patient, youll be rewarded with a perfectly hatchable drawing in the moment, and perhaps the manufacturer will be rewarded with a fraction of a Bitcoin that has been mined on your PC. In the background, who knows, Im happy that this works at all and I dont have to go, make a detour over a Rasta image step or something. Since we do have a pulsed laser. We can, of course, use the same process that removed the edge resist to dry and ablate metal directly. It does that, no doubt about it, but no matter what settings I use, it is drastically slower than the real 20 watt fiber laser weve looked at last time. Ive, let it hack away at this poor board for half an hour, and it still wasnt through so Im fairly confident in saying that the M4 would get through eventually, but it isnt suitable for this.

Not at all. It is very much suitable for marking, metals and removing Coatings, even shiny copper, that is very reflective to 1064 nanometer IR very easy to Mark permanently. Most polymers are also wonderfully susceptible to this wavelength, with clear, acrylic and polycarbonate being obvious exceptions at 70 by 70 millimeter. The engravable area is Tiny. The machine doesnt have insufficient safety features, it just has no safety features and I dont find the included green plastic goggles trustworthy enough with all that said. I still think this is a wonderful toy for watchmakers, Jewelers and smartphone repair shops. It might even be a lucrative tool with which they could add a new service to their portfolio with minimal effort and lower cost than other desktop fiber laser engravers. Personally, if I was determined to spend over a thousand dollars on one of these machines, I would just save a bit more and aim for a machine with a high quality at least 20 watt Mopar source. At this point I dont even know what the Laser Source in here is. It has to be tiny to fit into this machine much smaller than anything that makes photonics jpt or records offer. As far as I know, the three usual Chinese fiber laser Suspects, the software doesnt offer pulse width control, so I dont think its a Mopar. I have an untested and potentially inaccurate laser power meter. Here its Factory calibration has been made with the correct 1064 nanometer wavelength, but it is intended for a larger Millie Jewel impulses at 50 impulses per second maximum.

Our enjoy wood candidate defaults to a 20 kilohertz pulse rate, and I dont think it will do anything under 1 kilohertz still. We can just turn it on for a millisecond and see what the power meter has to say about that Ill, adjust it to autofocus so that we dont engrave the power sensor again, not a very trustworthy setup here at all. The sensor is not meant for this kind of measurement, even if it is working correctly and enabling the fiber laser for a millisecond is not necessarily the same as emitting one impulse. It might have a slower rise time at the start of a program, but based on the 0.5 volt impulse, as we are seeing. My conservative guess would be that the Laser Source in here has at least three watt average power, not quite 15 kilowatt, but hey close enough Im, not even kidding youve seen whats possible with this kind of power when compressed in space and time its all right. But lets take it apart and see if its also Built Well foreign, its cozy in here as expected, somehow the simplest component, the galvo scanner on the right is taking up a third of the volume and it doesnt even have its own Drive. Electronics inside the thread on the F Theta lens is a very, very small diameter, but maybe there are compatible replacement parts available for a larger working area or a longer focal length. The galvo scanner is an outer sourced standard part from Chongqing Fields very solid, almost like a massive aluminum block.

One nice detail that hardly anybody will ever appreciate. There is a thick silicone seal between the Laser Source, isolator and the gulvers kind of flange. This way the assembly is dust proof until somebody takes it apart or unscrews, the ftata lens, or both this uppermost green board, I believe, is a backpack and an adapter for a standard outsourced. Fiber laser engraver main board that talks to the c cat software. It may be light burn in the future. Does anybody still believe that theres a fiber laser in here I dont its way too small to accommodate even the bending radius of a glass fiber, all right, heres, the moment of truth on multiple levels? Point a weve got an O ring seal thats, usually not a good sign, because its often meant to keep atmospheric contaminants out like dust, moisture and oils and oo number two: is this isnt a fiber laser, not a big problem? This is still special and interesting Im. Seeing a heavily heat, sunk, diode bar with two thick wires, leading towards it and a million gold wire bonds to carry the high current to it its pointed into another Optical component, a crystal holder with a Y on it. What could that possibly be well? One clue? Would be the 1064 nanometer output wavelength, the signature of neodymium belt, Atrium aluminum Garnet lasers, so this is an ant pump with Yak Crystal, and this whole machine is a DPSS laser. This is just some standby current that should not yet cross the lazing threshold.

This 45 degree angled mirror, is just a beam combiner, so that a visible Red Pilot beam can be delivered coaxially with the main working beam. The entire assembly is sitting on a Peltier cooler which helps get rid of the Heat and stabilize the Crystals temperature. For this it has a temperature sensor on and with that all six wires that are entering this assembly are accounted for, but wait. Something important is missing. How are the laser impulses formed? Shouldnt there be a q switch or apocal cell in the optical cavity to prevent lazing until the gain medium is at its maximum excitation. Well, it took some spiritual counseling, but now I believe that such a saturable absorber is in fact right here. The third Optical component in the row could be a chromium dopetiac Crystal, which can act like an automatic passive Q switch. It normally represents a simple Optical loss up to a certain threshold of light intensity, where it begins to leak causing the usual chain reaction of doping. Iron relaxation and population inversion. That is why the computer software has no control whatsoever over frequencies or pulse widths, thats, why this module can be so Compact and the control Electronics is so simple. It just needs DC to produce those impulses, no high voltage or high frequency stuff. This is so elegant, although it is probably an economy option, ultimately, full control over all the timings is desirable and thats. All I have thank you for watching hope.