I received my milling machine about a week after ordering it. No problems with customs - everything delivered straight to my door. Moreover, I was able to continuously track the entire shipment.The milling machine is precisely made and has detailed manual. I had no problem with mounting and running it. In my opinion, it is one of the best cnc routers in this class. It has great possibilities and, in addition, it is easy to expand. In my opinion, it is an excellent tool for a home workshop and I have a lot of fun with it!!! What I expect now, is the Sainsmart's offer of various extensions to my cnc router. One of my suggestions is to enlarge the working area and replace the guides with ball screws. What I did by myself is the front cover (already broken while learning g-code programming :-) and side covers of the drive system.

It has been problem with the delivery. It has been on hold both in China and Europe. So i can’t give any Rewiew yet.

Haven´t received the CNC mascine yet!

I really like how my 10 year old was able to put it together and how the instructions were easy to read. Also really like the overall build quality!! Thanks.

This is my first CNC router. It's a really well built machine. I have a lot to learn, but I'm very happy with my purchase. I contacted SainSmart customer support a couple of times to check on my order and I was pleased with their quick response and they followed up to make sure I was satisfied. It's been a very good customer experience for me so far.

Станок отличного качества исполнения. Начну работать сделаю большой обзор.Всего вам хорошего С Новым Годом !

Machine arrved on time and was easy to assemble. The manual was easy to follow but also used youtube. The test piece produced was very good quality. I have had a problem with the Z probe not working - emailed Sainsmart yesterday waiting on reply. Overall very pleased with the quality of build and ease of operation.

First of all, I bought this model after using using a smaller 3018CNC since one year. My first impression is robustness. No more bakelite part but instead full metal piece part. The assembly has been quite fast , thanks to documentation , in less that the afternoon. I've spent more time to clean my room where I have installed the PROverXL CNC. I was already using Grbl (candle) , so I jumped directly to the first trial .... without any bit. The speed and acceleration are really effective. Now after this check I am using a flat end bit for a cut using a Gcode file that is available. Many thanks , It works perfectly.

like other users here I came from a 3018 and similar units, all of which have I have pushed to their absolute limit (aka destroyed). this machine is quite simply in another class altogether. I wanted a better grbl machine that I could swap in for my 3018 and this machine literally plugged right in worked the first time after setting up in easel. fairly easy to put together, aside from some quirks and issues with the instructions, which is entirely part of the game with these machines. here are the idiosyncrasies I came across. - the manual tells you to “install” the couplings on the lead screws before you install the motors and motor mount. this can misleading because what you want to do is only slide the coupler on to the lead screw, then install the motor assembly, position the coupler, then lock down the coupler with its set screws/collar. don’t “install” the coupler straight away on the screw or it probably won’t be in the right position once you actually install the stepper motor. - my frame needed adjustment to be square and sit flat. find a perfectly flat surface, loosen all the frame bolts and settle the frame down to the surface, square it and the retighten everything. the manual mentions some of this. - even after adjusting the frame I still had one small bolt/hole alignment issue where the cable track attaches to the frame. I had to use a clamp to pull it into alignment. - some of the limit switch cables came stuffed way up inside the cable track, requiring me to fish them out with various tools. in the process I stupidly broke one of the limit switch wire connectors and had to put it back on, which wasn’t fun at the very end of the build. totally my fault but just be aware that the cable ends may be hidden way up in the track, and should be pulled through with care. overall could not be happier with this machine!

I'm really excited to use the 4030 and it just look amazing, but mine unfortunately came with a few missing parts. Fortunately, Sainsmart has great customer support and is sending me the appropriate parts, but I would have really liked to have had this ready out of the box. Regardless, it's a great entry level machine with great capabilities and I'm sure as these get manufactured more that they will get more efficient!