Sainsmart Genmitsu PROVerXL 4030 (6060 Expansion)

About the Machine

The Genmitsu PROVerXL 4030 (6060 Expansion) pairs a base PROVerXL 4030 with Sainsmart's 6060 XY-Axis Extension Kit and 6060 Hybrid Table to reach a 600 x 600 x 110 mm working area. It uses the base machine's 300W spindle and NEMA23 stepper motors on a V-wheel rail with lead screws.

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.

The PROVerXL 6060 configuration's 300W spindle doesn't have a published max RPM, so check the spindle's plate before assuming it matches the chart. Depth per pass is where the machine itself matters. 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. This configuration is the base PROVerXL 4030's NEMA23 steppers and V-wheel rail and lead screw drive stretched over the larger 6060 extension kit's footprint, which flexes more than the base machine's smaller working area, so take shallower passes than you would on a standard 4030. 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; Sainsmart does not publish a max spindle RPM for this configuration, so check the spindle's plate for its actual ceiling and use the lower of the two. With the bit maker's 0.025mm per tooth (0.0010 in): 16,000 x 0.025 x 2 = 800 mm/min (31 in/min) feed, adjusted down if your spindle's plate shows less. 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.