There are a number of differences, but the main difference is the use of steel rails with bearing blocks rather than using aluminum angle and v-groove bearings to serve the same purpose. The electronics are all housed on the gantry. This machine is designed to include an optional laser gantry and 4th axis if desired. The y-axis uses a lead screw rather than roller chain.

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[790] How is this different from the greenbull 5x?

a 2' (24 inches) diameter workpiece for a 2'x8' machine may be a bit too much for an overhang. I would recommend the 4'x8' that can house a 4th axis in a cavity within the limits of the machine for a 24-inch part. If you need the rotary axis on the side of the machine, I can design a machine that would work.

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[790] Is there a way to build a 2x8 flat cnc with a 4 th axis on the side so I can do 24” diameter objects. Or have the z axis that tall