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Additive Manufacturing (DRY process (Fused Deposition Modelling (FDM)…

- - - - Save part as STL from CAD
      - Geometry sliced into layers, generate support when needed
      - Processed STL file into G-code
      - Uncoiled material goes through extruder and into hot end
      - Create material layer by layer along with support through G-Code
      - Print bed moves downwards when layer is completed
      - Take out object from print bed
      - Clean support material/raw FDM part
    - - PLA
        
        Non-toxic
        
        Minimum warping/curling
      - ABS
        
        Tougher
        
        Prone to warping
        
        Can withstand higher head
    - - Filament
      - Cooling Fan
      - Extruder
      - Hot end
      - Print Display
      - Print Bed
  - - - Save part in STL from CAD
      - Slice parts to prepare for processing
      - Layer by layer Processing
        
        Powder bed piston rises to create powder layer; part piston lowers to set layer thickness
        
        Levelling roller rolls powder layer into build area
        
        Produced powder heated below melting temp.
        
        Laser one cross section of layer to sinter (stick) the powder particles
        
        Unsintered (Soft) powder supports next layer
        
        Rinse and repeat until part is completed
      - Heat process chamber to operating temp. & fill with nitrogen
      - Part piston raises, collect part
      - Clean excessive power by brushing/blowing
    - - Metal
      - Polystyrene
      - Nylon
      - Green sand
    - - SLS machine
        
        Atmosphere Control
        
        Process chamber
        
        Computer
      - Laser
      - Scanner system
      - Powder bed
      - Roller
      - Powder delivery system
      - Fabrication Piston
- - - - Save part in STL file using CAD
      - Geometry sliced into layer, generate support when needed
      - Do layer by layer processing
        
        Laser generates ultraviolet beams that trace cross section. It solidifies surface area of trace
        
        Servo motors use mirror to reflect beams to base surface to trace outline
        
        Sweeper spreads resin, sweeps across every completed layer to re-coat new material
        
        Build platform lowers every layer is completed
      - Finish process, build platform rises, take part out of vat
      - Remove support and clean part
      - Goes to Post Curing Apparatus for final cure
    - - Resin, eg...
        
        Clear
        
        Engineering
        
        Standard
    - - Resin Surface
      - Platform
      - Lenses
      - Photopolymer Resin
      - Laser Source
      - Vat
      - Build platform
      - Sweeper
      - Scanning Mirror