Longer Laser B1 40W Laser Engraver Cutter with Auto Air Assist, Working Speed Up to 600MM/S, DIY Laser Engraver for Wood and Metal, Paper, Acrylic, Glass, Leather, Working Area 17.72×17.32 inch

GREAT LASER SOLID BUILD AND PERFORMANCE
After unboxing the assembly went very easy with the frame having exceptional machining and fit. I use Lightburn with this laser and with my Commarker B3 30 watt fiber laser as it provides a very good user interface with capabilities to adjust for any burning requirement. As this laser does not have a “built-in” laser pointer, it was really not an issue as most all other lasers that have the built in laser pointer, do not have the ability to dial down the crosshair brightness that overpowers the burning location starting point. So, I built an adjustable laser crosshair that is powered by a 5 volt USB power block, withe the + 5 volts wired through a 500 ohm -1 watt pot that perfectly provides an adjustable crosshair brightness from just visible to full brightness which is way too bright. Since the power consumption of the laser crosshair module is only ~ 20 mA, the 1 watt pot is more than adequate to regulate the voltage. (Higher power LED’s need to have their brightness regulated by using a PWM-Pulse Width Modulated method, but, for only 20Ma, it is not required in this case). The pictured “Laser Crosshair Brightness” control box was really my first burn project which is now used for any/every burn project to permit me to perfectly set the burn start point very easily. Even added a power switch to make it more “deluxe”. When wiring the crosshair, it is somewhat mandatory to connect the chassis wiring to the crosshair module using a small inline connector when you may need to remove to change heads or other reason. The pictures tell all. I also use the AtomStackmaker rotary that works great and to keep from playing the “connect/disconnect game” when using the rotary, I also fabricated a switch box that keep me from having to jocky the “Y” axis stepper motor connector. Now I can just throw a switch and my rotary is good to go. An ADVANCED modification I added was the addition of the LONGER Laser Engraver Ray5 5W / 10W Laser Module Lifting Bracket Kit – ASIN B0CTJMC642 … AN IMPORTANT NOTE — The lifting kit “side rails” need to be remounted so the fixed weight of the head presses down ON the lower stop pins and not with the set screws only providing tension. The rudimentary picture illustrates that the side rails need to rest on the screwed in set screw at the bottom. This keeps the side rails from slipping down from the weight of the head – IT WILL…. This is an advanced mod that also requires the “Y” axis limit switch to be moved “away” from the front rail of the unit by about 20 mm or so to provide the clearance necessary as the adjustable Z bracket DOES REQUIRE more room to keep the laser head from contacting the laser front rail. See pix. OVERALL a great laser that performs very well….

Should’ve got one sooner
I build custom RC airplanes and wide variety of other crafts such as steampunk boxes, signs, and more.I have few other open frame laser engraver / cutters, and this is my new favorite. It’s well made, powerful, and fast. Assembly is easy if you follow the instructions – video tutorials which are included on a thumb drive. If this is your first laser, be patient and follow the directions, it will be a good learning experience.I’ve tested this with a variety of materials utilizing Lightburn and LaserGRBL and the Longer B1 40w surpassed all my other machines. I did have an issue early on where my machine would randomly stop causing a split-second panic. I reached out to Longer who are very helpful, knowledgeable, and quick to respond. They helped me troubleshoot the problem and narrowed it down to a firmware update which was simple to install. Since then my Longer B1 has been getting quite a workout and I love it. I will be adding the extension in the near future.

Extremely hard to figure out
I have had this for about 5 or so months now and STILL have yet to figure it out. I have reset, readded apps etc.. NO instructions how to use period. Online ones have not even helped. I wish I had my xtool back.

used laser head sold as new !
I purchased new Longer Laser B1 48W machine. Assembly was easy, and mechanically the parts fit well. While installing the laser head that came with the machine – I saw that it has been previously used (see the picture). Unfortunately most of the machine value is in the laser head.The safety glasses that came with the package are a joke, so I cannot power it up yet. I will test the machine after I receive the Philips certified ones I just ordered, and will update my review. If it cuts close to manufacturer’s specifications – I will consider keeping it. Otherwise it goes back.Sep 2025 update:I have been cutting thin plywood and acrylic for a few months now. The machine is fairly reliable, even close to the power limits. I keep it in the back yard, with a vented enclosure built around it – this prevents the laser light exposure, and also the false positives when the sun hits the flame sensor. I have not tried cutting thick acrylic, but with wood it burns the edges so for thick material I use the CNC machine. Upgrading to 4 stars.

Sono presenti vari graffi la qualità non è eccelsa visto il prezzo mi aspettavo di più , ho un altro laser pagato 200 euro molto più curato nei dettagli …. Per un momento ho pensato che le viti fossero già state messe e poi svitate visto i segni , comunque l importante è il funzionamento quindi dopo la prova rivaluterò il tutto….Usato per un mesetto volevo dare 5 stelle, taglio pulito anche su materiale molto spesso , ma sono un paio di giorni che ha perso le ottime prestazioni , il laser non taglia più bene su legno spesso 4 mm Anzi oggi non lo ha proprio tagliato con bassa velocità e alta potenza …..esempio , tagliavo il materiale alla potenza. Del 75% e velocità 400 oggi velocità 250 e potenza 90 niente ci sono voluti 2 passaggi. Laser restituito dopo circa 6 mesi si è inchiodato per questo il mio giudizio è negativo