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CNC Feeds and Speed Calculator
Tool & Material
Material
?
Softwood
Hardwood
MDF
Plywood
Aluminum
Acrylic
Bit Type
?
Straight (Neutral) Bit
Upcut Bit
Downcut Bit
Compression Bit
Ball Nose Bit
Tapered Ball Nose
V-Bit
Engraving Bit
Chamfer Bit
Round-Over Bit
Surfacing/Fly Bit
Number of Flutes
?
1
2
3
4
Custom
Bit Diameter (inches)
?
1/8" (0.125)
1/4" (0.25)
3/8" (0.375)
1/2" (0.5)
3/4" (0.75)
Custom
Up-Cut Length (inches)
?
1/8" (0.125)
1/4" (0.25)
3/8" (0.375)
1/2" (0.5)
Custom
V-Bit Angle (degrees)
?
30°
45°
60°
90°
120°
Custom
Taper Angle (degrees)
?
2°
3°
5°
7°
10°
Custom
Cutting Parameters
Spindle Speed (RPM)
?
8,000
12,000
16,000
18,000
20,000
24,000
Custom
Material Depth (inches)
?
1/4" (0.25)
1/2" (0.5)
3/4" (0.75)
1"
1.5"
Custom
Number of Passes
?
Auto (Recommended)
1 Pass
2 Passes
3 Passes
4 Passes
5 Passes
Custom
Cut Type
?
Roughing
Finishing
Using Coolant?
?
No
Yes
Calculated Results
Feed Rate
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Plunge Rate
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Pass Depth
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Number of Passes
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Stepover
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Chip Load
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Quick Reference
Material
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Bit Diameter
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Material Depth
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