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CNC Router Machine 4040-PRO for Woodworking Metal Acrylic Cutting Milling, GRBL Control, Lead Screw Driven, 3 Axis CNC Engraving Machine, Working Area 400 x 400 x 78mm (15.7” x 15.7” x 3.1”)

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$599.00

$ 99 .00 $99.00

In Stock
  • Structure Stabilit: Stability is enhanced with a new steel HSS frame. Each axis features two16mm Steel HSS linear tubes , lead screw motion drivers, dual Y-axis rails, and a all metal frame. The Z-axis utilizes linear rails instead of rods and T8 lead screws.
  • Upgraded Control Box and Mainboard: The upgraded control box features essential functions like emergency stop and home buttons. Its metal casing is dust-proof and easy to maintain. It includes a powerful and quiet Toshiba TB6S109 driver with a 32-bit chip, along with multifunctional ports for air assist pump and MPG.
  • Compatibility Upgrade: The 4040-PRO CNC machine is supplied with 42mm and 52mm spindle mounts, compatible with original spindles, 300W spindles, and our laser module. Additional 65mm (B0BRZSY475) and 69mm (B0BRZSVVK3) spindle mounts are also available for separate purchase.
  • Various Upgrade Accessories: Supports a 4th axis rotary module kit(B0C581H2B3), allowing the 4040-PRO CNC to carve from various angles or perform full 3D rotary carving with the right software. Enables a Wi-Fi module(B0DK54JHS6) for mobile control. Also you can upgrade the XZ-axis(B0DHGN4ZYH), strengthen the screw material, and improve stability and speed.
  • Easy Assembly: Main parts are pre-assembled, enabling setup in about 15 minutes. The spoilboard consists of two replaceable MDF boards, so you only need to swap the damaged one instead of the entire spoilboard.
  • Large Working Area: The working area of 15.7” x 15.7” x 3.1” is sufficient for daily wood carving. The redesigned Z-axis carriage simplifies spindle swapping, while additional screw holes allow for higher installation of larger spindles, increasing overfeed height.



Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

Increase your work output with faster milling and increased stability. Whether you're a CNC beginner, a hobbyist, or a small business owner looking for enterprise quality for commercial purposes, this is an excellent choice.

Enhanced Stability and Accuracy: Achieving Higher Performance

Genmitsu

Screw drives provide better positioning accuracy compared to belt drives, as they are less affected by elastic deformation and swing clearance. Additionally, screw drives are easier to maintain during use, eliminating the need for tedious belt leveling and offering greater durability.

Genmitsu

No-hassle Support & Resource Center

You can find detailed instructions in the SainSmart Resource Center (see User G u i d e). Besides, we have a CNC community, you can get help from others in it. What's more, our customer support team is always ready to assist with any questions you may have.


Jeff
2025-08-22 18:58:48
This little CNC is great. I can do a lot of work using different CAD systems to create designs. I especially am enjoying a monthly subscription with Carveco that gives me access to a lot of good tutorials for producing lots of different designs, including things like inlays. I’m also using auto cad fusion 360 with good results. The one suggestion I have is that the provided spindle is pretty weak. I replaced it with a water cooled 2 hp spindle from Amazon and it can cut through anything. The carriage and drives seem to be very sturdy and allows me to get good cuts even with the larger spindle. I’ve also found that sainsmart customer service is great and very quick to send parts if needed.
papas5
2025-06-29 18:59:46
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.
Rob j.
2025-06-09 13:20:53
This is a solid little CNC! We had to add some extra grease to keep things quiet... and very hard to remove the couplers when upgrading the expansion kit.But we are very happy with it!We reached out to customer support who was very helpful and quick to respond as well... Highly recommend the product and company.
justaguy
2025-03-03 12:17:50
Came very nicely packed and easy to set up. Closer to 30+ minutes with the hand tools provided.Speaking of the tools provided. The screw driver is bent like someone used it as a crowbar.Iv reached out twice to genmitsu about the stuck left rail. And heard nothing.As im still available for a return with amazon if i dont hear back from genmitsu itll be on it way back to amazon possibly for the foxalien instead.Update: after nearly 2 months of very slow emails back and forth, they provided a new machine. Jamie was a very nice representative and easy to work with, but don’t expect quick responses. And don’t expect this machine without many modifications to do what the youtubers claim it can do.
Robert Johnson
2025-02-28 12:26:20
After operating the unit lightly for a few weeks, routing pine and poplar thin boards for test signs for the family, the unit began to squeak loudly on the X axis, I tried multiple lubricants recommended by the vendor technical support (which all they gave me was a search on Amazon) the noise would not go away, after several complaints to the vendor, they finally sent me a new X axis gantry, as soon a I received that and repaired the unit, the left side Y axis started doing the same thing, so once again I had to plead with the vendor for a new assembly. I still have not received the maintenance recommendations from Genmitsu for this system, nor the maintenance parts you will need for them. I will say that the quote for the Lead Screw Nut and backlash nut are not cheap and are proprietary to Genmitsu. All in all, customer service was okay to work with, the product works acceptable, would hope that they would provide more maintenance and repair information.
Customer
2025-02-07 15:10:07
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.
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