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For Students · CNC Feeds & Speeds

CNC Feeds & Speeds for a CNC part

Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a CNC part live below — adjust the inputs and watch it respond, right in your browser.

CNC Feeds & SpeedsLive

cutting parameters

9549

spindle RPM

1910

feed mm/min

Aluminum · ⌀10mm · 4 flutes

Controls

Presets

Tool diameter (mm)

Number of teeth

Feed per tooth (mm)

Depth of cut (mm)

Machining a part right means matching spindle speed and feed to the material. The cutting speed (surface meters per minute) sets the RPM for a given tool diameter; the feed rate is RPM times chip load per tooth times the number of teeth. Too fast burns the tool; too slow rubs and work-hardens. The material removal rate is your productivity.

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Data Inspector

Spindle speed9549 RPM

Feed rate1910 mm/min

Cutting speed300 m/min

Material removal38.2 cm³/min

Governing equation

n = \frac{1000 V _{c}}{π D} = \frac{1000 \cdot 300}{π \cdot 10} = 9549 rpm, v_{f} = n z f_{z} = 1910 \frac{mm}{min}

Reading this result: Feed rate is RPM times chip load times flute count, so adding flutes or feed lifts throughput here to about 38.2 cm³/min without changing the surface speed.

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Frequently asked questions

Is this good for students?: Yes — this version of "CNC Feeds & Speeds for a CNC part" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.