Calculate CNC speed and feed, rainwater storage, statistical sample size, and chemical dilution with visible formulas and editable assumptions.
Enter cutting speed and chip load from the tool or material supplier. The calculator converts those values into spindle speed and linear feed.
Estimate roof capture and size a non-potable reserve for an entered dry period.
Estimate completed responses for a proportion using confidence level, margin of error, expected proportion, and finite-population correction.
Solve C1V1 = C2V2 for a simple one-step dilution where stock and target concentrations use the same scale.
Metric spindle speed is cutting speed times 1,000 divided by pi and tool diameter. Feed equals RPM times chip load times cutting edges. These relationships match Sandvik Coromant machining formulas.
Roof area is multiplied by rainfall and collection efficiency. US units use 0.623 gallons per square foot-inch, consistent with the US EPA water reuse methodology.
The estimator uses the normal approximation for a proportion, described by the NIST Engineering Statistics Handbook, followed by finite-population correction and response-rate adjustment.
The one-step dilution conserves concentration times volume: C1V1 = C2V2. This equation does not determine whether substances are compatible or whether volume is additive.