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CNC (Computer numerical control) (Cam System (Step Depth, Step over,…
CNC (Computer numerical control)
Advantages of using CNC
It can cut on hard-metallic material
The process is programmable
More accurate
It can produce a fine surface finish
Cam System
Step Depth
Step over
Footpath Progamming
Roughing
Feed Rate
Spindle speed
Finishing
How does it work?
Removes material from a
solid piece for the desired
model.
The process is programmable. Tool movement is controlled
by NC program
Constraints of using CNC to make prototype
Need work piece to support the cutting
Restrained by size of cutters
Needs skill to use CAM programming
Needs post-processing
Work Flow
CAD > CAM > CNC
NC PROGRAMME
Alpha-Numeric (G-code)
The X,Y,Z are the cutter