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Manufacturing Systems Rd 6 Technology CAD/CAM

Manufacturing Systems Rd 6 Technology CAD/CAM. CAD/CAM Workshops. Contents: CNC Machine Types CNC Routers and applications 2-D & PCB machining Practical Exercises. CAD/CAM Workshops. Objectives Introduce CNC routing techniques & principles Experience CAD / CAM design software

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Manufacturing Systems Rd 6 Technology CAD/CAM

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  1. Manufacturing Systems • Rd 6 Technology • CAD/CAM

  2. CAD/CAM Workshops • Contents: • CNC Machine Types • CNC Routers and applications • 2-D & PCB machining • Practical Exercises

  3. CAD/CAM Workshops • Objectives • Introduce CNC routing techniques & principles • Experience CAD / CAM design software • Experience the use of CNC routing to: - • (i) Carry out a simple 2-D machining exercise • (ii) Manufacture a PCB

  4. CAD/CAM Workshops • Types of CNC machine: - • CNC Lathes - Cylinders, Tapers, Threads, Flat surfaces • Laser Technology – Accurate 2D profiles from Wood & Plastics • CNC Routers – Versatile; 2D, 3D, Scan in 3D & PCB manufacture

  5. CNC Routing 2-D profile cutting

  6. CNC Routing PCB Manufacture PCB Design Machined PCB

  7. CNC Routing 3-D Machining CAD Model Machined Part

  8. Self Centering Vice

  9. CNC Routing 3D Scanning

  10. 2D Routing Engraving Relief on a curved surface Text

  11. CNC Routing Lithopane Machining Light Box Monochrome Images

  12. CNC three axis routing • Degrees of Freedom Axis orientation for router

  13. Using a CNC Routing Machine • Main aspects: - • Working holding • Toolsetting – Datum point & Offsets • Programming – Software • Operation of the machine

  14. Desk Tidy Project

  15. 2D routing example

  16. 1 mm contour offset Tool offsets and depths • Order / Machine Plan • Machine Pocket • Remove holes • Engrave Text • Cut through profile 2 mm Dia. Slot Cutter

  17. When 2D Routing • Issues to consider: - • Tools, Offsets, Depths of Cut • Clearance moves between profiles • Speeds, Feeds need to be added. • Motion of the tool is often quite different from the shape being produced, e.g. hole • Items such as pockets, islands etc need to be identified and dealt with. • Each software package takes a distinctive and unique approach to addressing the above

  18. TechSoft Exercise • Picture Holder

  19. TechSoft Exercise • Software: - • TechSoft 2D Design - 2D Machining • Techsoft PCB Design & Make – PCB manufacture • Visual Tool Path - 3D machining

  20. Open Template file ‘Frame TEMPLATE.dtd’ TechSoft Exercise • Use setup file ‘Frame Template.CFG’ • Add Text • Edit to incorporate text in profile • Add tool path • Machine part

  21. PCB Manufacture Motor Control Circuit Circuit design PCB layout generated

  22. Track Width and Isolation Gap • Full copper removal PCB Manufacture Important Considerations • Placement of components • Tracks etc should be adjusted before export to CAD/CAM software • Flatness of PCB on machine table - Size

  23. PCB Manufacture Denford Router • Software : - • QuickCAM 2D Design - 2D profile work • VR Milling V5 - Control software, PCB manufacture • QuickCAM Pro – 3D & Lithopane Machining,

  24. Dry machine tracks using Vee engraving tool PCB Manufacture Denford Router • Drill holes using PCB drill • Or • Spot with vee tool and drill by hand • No hazardous chemicals

  25. Specific Neutral File formats • Gerber Files • Required by VR Milling for PCB production • Created as a set – one layer to a file • Need to identify which file contains items of interest Drill file Solder Side

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