Vevor CNC Router Machine, 300W

About the Machine

The 300W CNC Router Machine has a 400 x 400 x 60mm (15.75 x 15.75 x 2.36 in) working area and a 300W spindle running at 12,400 RPM. It uses a high-torque stepper motor (Vevor does not state NEMA size or torque) and ships with a 2.4 in touchscreen offline controller in addition to USB control.

Cut Settings on this Machine

Every cut starts with one formula: Feed Rate = Spindle Speed (RPM) x Chip Load x Number of Cutting Edges (flutes). Chip load is the thickness of material each cutting edge removes in one revolution of the bit. This number comes from the manufacturer of the bit, which publishes a chip-load chart for each bit diameter and material. Look up your exact bit and material, start from the middle of the published range, and you have the third number in the formula. The chart below shows the recommended spindle speed for each material and bit type.

This 300W spindle runs at 12,400 RPM, near the top of most of the chart, so you have real speed available across most materials. Vevor does not state the drive system (ball screw, lead screw, or belt) for this machine, so treat it as a mid-weight desktop router rather than a heavy-duty one. Depth per pass is where the machine's build sets the limit: a truly rigid machine with a powerful spindle can cut as deep as the bit is wide in a single pass, but that takes real spindle torque, a drive train and clamps that hold firm, a gantry that will not flex, and enough mass to soak up vibration. Without a published drive system to confirm that rigidity, start with shallow passes and work up. Push too deep and the bit deflects and chatters, leaving scalloped edges, or it rubs instead of cutting and burns the material. The fastest way to dial in a cut is to see what has already worked for other people.

Worked example for feed rate: 1/8in (3.175mm) two-flute solid carbide end mill in hard wood. The chart says 16,000 RPM, but this spindle tops out at 12,400 RPM, so run 12,400. With the bit maker's 0.025mm per tooth (0.0010 in): 12,400 x 0.025 x 2 = 620 mm/min (24 in/min) feed. For depth per pass, start shallow and check Community Cut Settings in Easel for what works on this machine. If the cut sounds strained, reduce the depth, not the feed. Slowing the feed below the chip load makes the bit rub instead of cut.

Community Cut Settings shows the spindle speed, feed rate, and depth per pass other makers actually run for your machine, material, and bit.