Creality Bed Leveling & Speed Estimator
Calculate bed leveling mesh variance, Sprite direct drive extrusion flow rate (mm³/s), and K1 Max high-speed print completion time.
How to read these numbers
The volumetric flow figure is the rate the hotend would have to melt plastic to sustain the selected speed at the selected nozzle and layer height. It is a demand figure derived from geometry, not a capability of the machine.
The hotend imposes its own ceiling, and that ceiling is usually the real limit. Creality lists the K1 and K1 Max hotend at a maximum of 32 mm³/s. A 0.4 mm nozzle laying a 0.2 mm layer at 600 mm/s demands roughly 48 mm³/s, well above that. When the flow figure above exceeds what the hotend can supply, the printer will not hold the selected speed on perimeters no matter what the motion system is rated for, and the estimated print time shown here will be optimistic.
This is why the 600 mm/s preset is a ceiling rather than a plan. Creality footnotes that figure as a Creality Lab result in Surface Mode at a 0.1 mm layer height, and puts the typical speed of the same machines at 300 mm/s. This tool assumes a layer height of half the nozzle diameter, which is the ordinary case rather than the footnoted one, so at 600 mm/s it will report a demand the hotend cannot meet.
Bed mesh variance is the spread between the highest and lowest probed points. Mesh compensation has limited range and works best on small deviations, so a large variance is a signal to tram the bed mechanically rather than to lean harder on the probe.