Features:
An effective working area of 400 x 400 x 78mm is large enough for most daily CNC projects. The redesigned Z-axis carriage makes swapping a spindle easier. Adding more screw holes on the non-all-in-one Z-axis carriage allows you to install the larger spindle higher for extra overfeed height.New Steel HSS Frame - all new redesigned frame structure, each axis is composed of two 16mm Steel HSS linear tubes and a lead screw motion drive, dual Y axis rails, and all metal frame. This new high-rigidity structure ensures the stability and accuracy of the CNC machine.Still based on open-source Grbl v1.1, the 4040-PRO CNC router has stepped up to more powerful but silent Toshiba TB6S109 drivers with 32-bit chips. Upgrades include extended function ports like a dedicated 3 Pin Laser Port, Air Assistance Pump Port, and MPG Port.All main parts are pre-assembled and it just takes about 15 minutes to finish the whole machine assembly. The spoilboard is combined by two pieces of MDF boards. Each MDF board could be replaced individually. You dont need to replace the whole spoilboard when a panel gets damaged.The extra spindle mount, laser module and other upgraded accessories are available for order. You could upgrade the machine easily based on your needs. If you get stuck, check out the SainSmart Resource Center (see at User Guide) or contact us with any questions that arise.