GenmitsuL8 Laser Engraver, 20W (20000mW) Laser Cutter Built-in Acrylic Enclosure with Vent, Air Assist Pump, Honeycomb, Camera, All-in-one Plug and Play Laser Engraving Machine, Laser Safety Class 1

I bought this Genmitsu L8 in July and have used it pretty extensively since then - mostly for laser cutting wood but a bit of engraving on wood and metal. I found it very easy to set up and get started although the instructions are a bit simplistic and I still could use a better description of the focus and power levels for cutting and engraving various materials. Even after using it for months and it would have been helpful to have a better explanation of the line interval/resolution but I figured it out by watching YouTube videos for other laser machines.I installed Lightburn instead of the stock software and that has worked very well. I find that this 20W laser is very capable and it meets the specifications and cuts cleanly and quickly through 5mm plywood and does a great job engraving aluminum, plastic and steel - I have had a bit less success with wood which has been coming out less crisp than I’d like but maybe I need to spend more money for better wood surfaces and based on the excellent results from metal and plastic, I’m thinking my wood engraving issues are either cheap wood or user error.Overall I’m very pleased with my purchase and I use it constantly and it meets the specifications claimed by the manufacturer.EDIT: I found the power, speed, and line interval settings for various materials and thicknesses on the Sainsmart/Genmitsu website after I wrote the review.

The media could not be loaded. Instead of just putting in a bunch of photos, I decided to make a quick video - I would highly recommend this 20W Diode Laser - I have only had it 3 weeks, but the learning curve is awesome!I have since purchased the 40W Laser which is interchangable with the 20W. I have been unable to successfully align this laser, it works fine most of the time - but the inability to get close to other objects and KNOW that it will cut where I am telling it to cut - well, I am not willing to risk a project - so the 40W requires me to use a new piece of wood for every project until I can figure things out.

I purchased this laser cutter based on it's features. I liked that it had a complete enclosure and safety features. Unfortunately, there doesn't seem to be much in the way of Quality control.When I opened the box and removed the unit I noticed a loose screw in the box, not good...I then attempted to access the instructions located on the USB drive. The drive couldn't be read. I tried it on three different computers and none of them would recognize the drive.I contacted the vendor and explained the issues. They did respond quickly with a link to the software that I could download and they asked for a photo of the screw. I sent it them A few days later they told me the screw was an adjustment screw for the ways and asked me to confirm one was missing, which I did.I did ask how they could send me a unit that wasn't properly adjusted but, I haven't heard back regrading that question.I received the laser cutter on June 11th and haven't even tried it because I'm concerned that it wasn't properly tested at the factory. I'm hoping that SainSmart gets back to me and addresses my concerns soon. Otherwise, I'll have to return the unit.

I am new to the laser engraving so didn't know what to buy. I did have difficulty setting it up from the instruction booklet. After a few days of not being able to link my laptop with the engraver, I wrote to the company and they responded within a day. I didn't connect the camera cable and did not unlock the safety switch. Once done the machine fired up and connected with my laptop. I had trouble finding the camera COM link because for whatever reason what installed on mine was different than the instructions indicated. But so far it runs great and I've made a few small things. Still learning about speed and power settings. I decided to try the Lightburn software trial and although a little complicated, once understood it is a good program. There are great tutorials which are easy to follow. I gave it a four star rating because I haven't used it very long. I really love that this machine somes with a cover and air assist - no need to wear glasses. Has great safety features and is fairly quiet. And you don't have to set anything up - just plug in the cables and go. Customer support is great if you have trouble. I had written several times with computer support issues, which was mostly my lack of knowledge. They responded each time within a day with easy to understand instruction. Hoping to come back after I use for a while and give a five star rating. You won't be disappointed if you are a first time user. If I really get the hang of this, I may jump up to the 40W.