Question:
What is the primary purpose of direct numerical control in the context of CAD/CAM integration?
What is the primary purpose of direct numerical control in the context of CAD/CAM integration?
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- CNC controls an individual machine tool using its dedicated computer.
- DNC (Direct Numerical Control) connects and networks multiple CNC machines to a single central computer system.
Updated On: Jul 4, 2026
- Generating G codes automatically
- Converting the analog signals into digital
- Designing 3D models
- Networking multiple CNC machines to a single computer
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The Correct Option is D
Solution and Explanation
Concept:
In automated manufacturing facilities, managing part programs efficiently across multiple machines is critical:
• CAD Systems: Used to design 3D models.
• CAM Post-Processors: Used to generate G-codes automatically from toolpath simulations.
• Direct Numerical Control (DNC): A networking configuration where a central mainframe computer manages and transfers part programs to multiple individual CNC machine controllers simultaneously.
Step 1: Clarify the functional role of DNC. Early CNC machines had limited internal memory. DNC solved this problem by creating a local area network (LAN) connection from a single central host computer to the machines on the factory floor. This allows the host computer to store large libraries of G-code programs and stream them dynamically to multiple CNC machines simultaneously, eliminating the need to load programs manually via physical disks or tapes.
• CAD Systems: Used to design 3D models.
• CAM Post-Processors: Used to generate G-codes automatically from toolpath simulations.
• Direct Numerical Control (DNC): A networking configuration where a central mainframe computer manages and transfers part programs to multiple individual CNC machine controllers simultaneously.
Step 1: Clarify the functional role of DNC. Early CNC machines had limited internal memory. DNC solved this problem by creating a local area network (LAN) connection from a single central host computer to the machines on the factory floor. This allows the host computer to store large libraries of G-code programs and stream them dynamically to multiple CNC machines simultaneously, eliminating the need to load programs manually via physical disks or tapes.
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