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Calculate appropriate feeds and speeds

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After completing this video, you will be able to: 

  • Calculate appropriate feedrate and tool speed.

Video quiz

1. Using the following formula and supplied parameters solve for the RPM. RPM = (12 x SFM) / (3.14 x Diameter).

A machinist is setting up a Vertical CNC Mill with a ½” endmill and wants to run a surface feet/min of 32. How fast should the tool be spinning?

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Step-by-step guide

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