OMTech Light B10 Laser Engraver, 10W Output Diode Laser Module with Air Assist, Desktop Wood Laser Cutter Metal Engraver Machine, Ultra Fast & Precise Mini Laser Engraving Machine for Home Office DIY

IT worked with my Mecpow Pro 10W laser just fine.

The marking spray does show up well but the problem is it scratches off over a short period of time. I used this on a stainless steel bracelet and after a week I started to notice wear on the ink.

Wire cables are short, or the drag-chains are long. No big deal. I rearranged everything, clipped all their zip-ties... Yanked on the cables. Then I removed 2 of the X-axis chain links so plug connections can be made, and there's some slack.The frame is heavy and strong. I liked that. But just two tiny fine-thread screws hold a corner together. Better not bump this machine. They warn us. Careful you don't cross-thread a screw in the aluminum channel, and the frame must rest on a flat surface. Or else, if it's square now, it won't be.Sight down an edge... Preassembled X-axis belt and / or pulleys are obviously misaligned. I mean, it's staring you in the face. It would have been a simple adjustment. How does something like that get ignored? Am I being too picky?Nice linear bearings. But to save money, they skipped every other screw. So, the operation rubs wherever a screw is missing, which is about every inch. Both X and Y axis suffer. Smooth then rub, smooth, rub, smooth, rub....Holes for the missing screws aren't drilled much less threaded, so fixing it is near impossible. I'd prefer common ball bearings that are properly installed.It has a key switch. It's not marked ON-OFF, and there's no indicator light. Key is always removable. You must press the Power Button to know whether or not it's Key-on and powered up.Stick the key in. OFF is to the... right? whatever.... It seems the vertical key is Power-ON.But turn the key further left and the whole switch keeps on turning. Stop! You're twisting hot wires. (Turning it to the left would loosen any locking nut, if the switch had one, which it doesn't.)Unplug that power supply. Better remove the cover plate and see what happened inside.It was an amazing sight. The two key-wires are already badly, tightly twisted together, as if an electric drill was spinning the key switch. I sure didn't do it. Perhaps it was an attempted repair. "Hey. This key-switch feels kinda loose." "Well, then tighten it up. Duh."BTW, I have another 10 Watt, slightly larger, same price range, and on its linear bearings they put just one screw every SIX holes. So I guess this machine is an improvement. I see a pattern. Once the design leaves the drafting table, and production begins, the items produced by the far east get no love. Nobody cares. Just get it boxed up, on a boat and on its way, as cheap and asap.To be continued..I had high hopes for this air-assist blower. I'm a big proponent of air-assist. Every laser cutter/engraver should be fitted with an air nozzle, at the very least. And I think this tiny blower, mounted right on the laser module, is perfect. The short air line preserves air power, it eliminates routing a long hose. There's no buzz and vibration as from those common diaphragm air pumps. Weight is only about 80 grams, which is fine..Unfortunately, this blower turns on for a moment when the power button is pressed, but then it automatically turns off. It's a 3-wire motor, so it's brushless, and no doubt variable speed. It has a complex little circuit board for a simple fan... But there's only two power wires going in. No control or data line ? Just the + and - power.The laser diode's cooling fan is on steadily, and working properly.Maybe the Air-Assist fan only spins when you cut something, laser-on? Nope. Nothing I tried would get that blower moving except turning the main Power button Off and On again. Then the fan turned on, but only for a moment. And of course that "Off" completely disconnected the laser from laserGRBL, LightBurn or whatever.I'm kinda tired of messing with it. Searched the net for help or info about this machine... Almost nothing out there. It's too new. One guy on youtube documented the short-cord troubles I mentioned earlier. He had more difficulties than I did.There's a bright work-light that can't be dimmed or switched off and it was getting to me. I finally put some masking tape over it. That helped but it's still annoyingly bright. Mysterious little switches and buttons here and there...Then there's this "gyro" thing. Gyro, whatever it is, has its very own plug! The manual mentions gyro only once: "....and a third wire marked “4” or “Laser Gyro” with a narrow red plug." An internet search for "gyro" turns up nothing.

I'm sending this back to OMtech after having it a week or so. Beautiful looking machine, decently solid for what it is and It works great, when it works. I was running it with Lightburn and it will just stop communicating and freeze. Then sometimes I can get it back in sync to home to run it for a few minutes then it will stop again. I think the board they use in it is absolute garbage. I have another brand ordered that has rave reviews all over youtube. Hopefully it works bc I'm really enjoying the laser cutting and engraving opportunities and hope to make a nice small business out it one of these days. I need out of the corporate world in a bad way!