Computer aided manufacture (CAM).

Computer aided manufacture (CAM)

CAM uses digital design data to control manufacturing machinery, most commonly CNC machines.

CAD files are converted into machine toolpaths or control programs. Parameters such as feed rate, cutter speed and tool movement can then be set for manufacture.

DXF in CAD/CAM

DXF (Drawing Exchange Format) stores 2D vector geometry. It is commonly used to transfer outlines and profiles from CAD to laser cutters, CNC routers and plotters.

Using a standard digital format reduces the need to redraw geometry when moving between compatible CAD and CAM systems.

Laser cutting

Uses a high-energy laser beam to cut or engrave materials

Compressed gas can remove waste and help produce clean edges

Operates mainly on X and Y axes

Routing

High-speed cutters machine sheet materials such as MDF

Can machine simple 3D forms using X, Y and Z axes

Workpiece is fixed to the machine bed

Milling

Rigid CNC machines can cut metals and other engineering materials

Multiple axes allow complex surfaces, slots, holes and profiles to be machined accurately

Enclosed machines and coolant can improve safety, tool life and surface finish

Turning

Produces cylindrical parts from bar stock

CNC lathes can change tools automatically and repeat the same programmed geometry accurately

Plotter cutting

Cuts compliant materials such as vinyl

Uses X-Y coordinate paths from 2D CAD files

Commonly used for graphics and signage