Machinist's Calculator
Calculator for Machinists and CNC Programmers
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Surface Finish Calculations



spacer The purpose of the surface roughness application is to enable the user to calculate the correct amount of lathe feed or ball nose cutter stepover to achieve a particular theoretical surface finish.
Calculations are based on the tool nose radius and feed per rev for turning, or ball nose cutter diameter and stepover for milling.
Calculations can be for inch or metric systems.

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Ball nose cutter calculation
This feature only available for Windows PCs and tablets.

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Machinist's Calculator is also bundled with the EditCNC g-code editor.