CNC Engraving Machine

1
CNC Engraving Machine

• Design Specifications

Dave Korim Tim Nonna Ian Peck Drew Moyer Elliot
Seguin Amy Manganello
2
Purpose/Goal

• Design a CNC Engraving machine
• Rapid prototyping of printed circuit boards
• Light engraving of nameplates, etc.

3
Characteristics

• Physical
• Table top unit (size and weight designed for two
  person mobility)
• Chip/dust removal system
• Cooling system
• Working Area- 12 x 12
• Milling depth limiting for table protection
• External
• Protective housing
• Ergonomic

4
Performance

• Minimum cutting feed rate of 0.5 in/s
• Floating Z-axis control
• Automated tool change
• Milling bit location feedback

5
Operating Range and Accuracy

• Variable spindle speed
• Min. 10,000 rpm
• Max. 60,000 rpm
• Drill bit resolution of 0.2 mil
• Repeatability of 0.2 mil
• Accuracy of 0.2 mil (bit positioning)

6
Other Factors

• Environmental
• Adhere to OSHA standards
• Cost
• Less than 5,000
• Power
• 120V AC
• 50-60 Hz

7
Reliability and Maintainability

• High motor lifetime
• High quality bits for extended tool life

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Questions

• ?

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References/Acknowledgements

• LPKF Laser and Electronics Product catalog
  (2002/2003)
• www.DesktopCNC.com
• http//www.micropronto.com