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Thread: Cutter speeds
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5th May 2009, 09:53 PM #1
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Cutter speeds
Day All, Can anyone help out with a formula to calculate the periphal speed of a cutter given the rpm of the router and the dia of the cutter, nothing complicated please guys this old brain is a bit fragile.
safe routeringssgt
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5th May 2009, 10:34 PM #2
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(diameter in mm of cutter) times rpm divided by 1000 will give you metres per minute
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5th May 2009, 10:40 PM #3
The West is Best
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I would say the radial speed of the cutting edge in metres/sec = D * 3.14 * rpm/60/1000. (D - Diameter of cutter, 3.14 = pi roughly )
So a 1" cutter at 20000rpm would be 25.4 * 3.14 * 20000/60/1000 = 26.5 m/s
or also 1595 m / minute or also 95.4 km/h.
Les
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5th May 2009, 11:33 PM #4
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As Les indicated , you forgot to x by "pi"
Originally Posted by echnidna
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