Genmitsu CNC Router Machine 4040-PRO for Metal Acrylic Cutting Milling, GRBL Control, Lead Screw Driven, 3 Axis Engraving, Working Area 15.7” x 15.7” x 3.1”

Setup was quick and very easy, this is actually the second I purchased because I like the first one so much. It is very user friendly even if you’re a beginner, it produces professional quality results. I purchased upgrades for this machine to include x and y axis extension and routers as well. I had one issue with one of my offline controllers but customer support was excellent and quickly replaced the defective controller. I am impressed with the quality of machine you get for the money, their customer support is also top notch. I did my first carve right after I received and assembled my machine, it performed better than expected, lower noise level than other machines I’ve used, the carve was very precise and detailed and the machine is very solid with no detected play I. Any of axis.

I LOVE THIS MACHINE! This is the best machine for the money on the market period. Here is my story. First I bought the Fox Alien rubber band CNC which was a huge mistake. I was busy with other things so it sat there unused until I got to it. I found out the motherboard was bad, they replaced it and quickly, they even gave me their new 1/4" bit set as a sorry for the issue, which was nice. Then I tried to cut 1/8" cast acrylic plastic and it would not cut it! I added 5 passes to cut 1/8" plastic, and it still would not cut it. Meanwhile I am emailing them asking how to fix this. Their rubber bands would skip and destroy every cut I tried to make. I finally gave up and they would NOT give me my money back on their product. So I bought the Genmitsu 4040 Pro for less money. No rubber bands, just solid metal screw drive. Same exact stepper motors and this thing is a beast. I surfaced my cutting board since the Fox Alien destroyed it. It cut is so smooth it is like a mirror finish. I love this machine. It will cut and it is so accurate, I love this machine. Yes it is not as fast as the Fox Alien, but who cares, it actually works, it cuts and anything. If it fits into the machine it will cut it. Obviously you have to work within limits but this is a beast of a machine. I love it period. Yes I relocated the power to underneath it so I did not break it off, not sure why they have it sticking out the side, but who cares. This thing works so good, get one you will be happy you did.

The unit is great. It was easy to assemble and there are a ton of YouTube videos to help with bringing it online. I intend to carve mostly hardwoods like Maple, Cherry and Walnut. It does a good job using a V bit but the excessive chatter with a 1/4" or 1/8" end mill bit makes a mess of the project when carving pockets or profiles. The unit I have had too much play in the X and Y axis simply due to the play in the spring loaded nuts that are driven by the lead screws. I was able to eliminate that chatter by disassembling the nuts, tapping some existing holes in the floating side to add set screws. This allowed me to carefully tighten the set screw until the backlash was gone but the lead screw could still operate freely. Added some loctite to prevent the set screws from loosening over time. Unfortunately, the spindle motor assembly that was supplied as well as the upgrade spindle with higher rpm also flex too much and the chatter is still unacceptable. The next modification will be to upgrade the spindle motor to a trim router to see if I get the chatter to stop. I'm overall very happy with the unit but I want to improve the performance. For the beginner, Easel Inventables software works great and is easy to use. The first 30 days is free but after that a subscription is required.

This CNC has been nothing but trouble. The grantry never stays inline i fought with it for 2 days straight still not fixed. Bought the 10w laser for it cant even power it up. I have wasted so much time and money with this cnc itss crazy the amout of time i spent fixing things only to use it 4 times.

I purchased this machine on cyber Monday in 2023. I was looking for a CNC that had more stability, accuracy and repeatability than the belt driven machine I currently had at the time. I wasn't disappointed. The packaging was about the best I've ever seen, assembly was a breeze and it was square and level right away. The screw drive and linear rails make this quite rigid and reliable. I used it for about ten months when it stopped working. After contacting customer support and describing the symptoms it was determined that the power supply went bad. They sent me a new one free of charge which solved the problem completely. I can't say enough good things about the machine and level of support I received.

I received the machine in good condition, the packaging was superb,. unpackaged and assembled, clear directions. took around 30 minutes to set up. the software (Candle) that came with it is a bit lacking, but I use G-sender and V-carve Pro. This is my first desktop machine, so I am going to try my best to capture everything I have experienced so far. Pros: Good quality main frame, pretty stiff for a desktop Good packaging Great customer service Easy to assemble with easy to follow instructions Very quiet Cons: Extremely underpowered, most bits require 12000 or more rpm to work in optimal range, the spindle is only turning 9000 Upgrade parts are almost as expensive as purchasing a new machine( spindles, extensions Etc.) would recommend the 1.5kw VFD spindle or trim router if you will be carving anything thicker than 1/4" pine. The stock spindle struggles to cut though on profile settings, deep v-carves and 1/4" clearing pocket cuts. V-bits and End mills that have a 1/4" shank are unusable with the stock spindle. Very little adjustments to correct Tram and squaring Final thoughts: The machine advertises that it can cut wood, metal, acrylics and other soft materials, what they don't tell you is that the machine will not cut smoothly with 1/4" bits or anything thicker than 1/4" and that is testing the limits. All in all, it is a good starter machine, a little pricey for beginners, but bear in mind this isn't a commercial machine, if you are doing small carves with minimal depths this is a great machine. If you are seriously trying to carve heavier materials look to the more robust (and more expensive machines). If I can afford to purchase the 1.5kw VFD spindle I will return and revise the review. If Genmitsu/Sainsmart would like to donate the spindle set up, I will put the machine through its paces again, and give another review with the upgraded machine.

I purchased originally 3018 pro but one bearing came out completely from wherever it was seated and returned it. I purchased this one and what a difference! Everything fits, frame is rigid and everything worked out of box in Easel on my 2011 iMac. I had two minor issues at the beginning. After first homing base board was squirted along X and Y axis with most likely oil from bearings. It's a cosmetic issue - but you want get second board and they are not cheap. Second issue - one of bolts completely unscrewed during job, and spindle started to twist in the slot. I caught it early, tightened bolts and no problem since them. One downside of this machine is relatively weak spindle. It will cut through plywood and engrave details that will blow your mind. Unfortunately if your planning to do anything with real wood - better plan for router upgrade. And this is also not cheap. After 3018 fiasko i was considering 4030 proverxl v2 - but it's not worth paying 2.5x for it - especially that you still need to upgrade to real router for proper wood work.

Love this cnc machine, runs smooth, easy to clean, I also purchased the extension kit. Customer service has been good

Bijna 2 jaar geleden gekocht en ontzettend veel plezier van. Een uitstekende machine, makkelijk te monteren en (na enig inleeswerk) makkelijk te bedienen. Ik gebruik de CNC voor het maken van klokken: van de tandwielen tot de frames. Dit deed ik eerst met een electrische figuurzaag maar met deze CNC gaat het veel nauwkeuriger en sneller. Daardoor kan ik meer tijd besteden aan het ontwerp. Vooralsnog grotendeels met hout gewerkt maar recent ook met acrylglas. Machine is nauwkeurig, bijna onderhoudsvrij (af en toe even smeren) en heeft een mooi werkbereik. Sainsmart heeft een goede klantenservice voor zowel technische vragen als aftersales. Mijn Z-probe werkte niet meer en ik kreeg gratis een nieuwe toegestuurd. Uitstekende service!

NC旋盤加工をするために購入しました。あまり大きなサイズはできませんが、良い商品でした。 3軸加工では、別途専用ホルダーを購入すると、市販のルーターを使用することもでき、かなりパワフルな加工ができます。軸径6mmφ、1/4インチφのバイトをガンガン使用できます。

Gran maquina para empezar en el mundo del grabado y corte CNC. El envío fue rápido, llegó días antes de lo esperado. Muy contento con la compra y con la atención al cliente.

Bardzo dobra maszyna dla początkujących hobbystów chcących spróbować swoich sił w świecie CNC Prosta konstrukcja, szybki montaż i duże możliwości modernizacji frezarki w przyszłości (większe pole robocze, silniejsze wrzeciono, itp)

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