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3D printing basics for FDM printers

Ever wanted how to USE a community 3D printer?

Ever wondered how to make a simple model of something?

Didn't know what materials to use and what their properties are, much less all of the materials available for 3D printing?

What do I do with it after I have printed it?


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3D printing basics for FDM printers

  1. 1. 3D Printing Basics with Stacy Devino (09/02/15) Dallas / Ft. Worth
  2. 2. To make this? Ever wondered how to design this?
  3. 3. ThingHubs (Stuff to download and print)
  4. 4. Modeling (Free or Open Source)
  5. 5. Beginners TinkerCAD - Web Based tool that allows imported files and direct connectability with Thingiverse Sketchup - (Windows or MAC) Very good at making simple things that might need some complex interlacing of simple shapes or large areas EMachineShop - Diagram based tool for doing 2D to 3D models or tracing, very simple to start for people who draw
  6. 6. Advanced Blender - (all platforms) Python based, Open Source full 3D modeling suite, used in some professional animation studios FreeCAD - AutoCAD-like modeling suite for engineers, Open Source OpenSCAD - 3D for Programmers and Mathematicians
  7. 7. Materials (Plastics and otherwise) ABS plastic (220-260C) pros Inexpensive ($10/kg) Lots of colors and availability Heat Tolerant for Texas summers Decently high strength Prints faster and easy to post-process cons Print quality is OK, but not high precision Print adhesion is not great, needs heated bed Tends to warp unless fully enclosed Requires more expensive printers ($700+)
  8. 8. Materials (Plastics and otherwise) PLA plastic (180-220C) pros Inexpensive ($15/kg) Lots of colors and availability Great print quality Works with cheap printers (no heated bed) Even FLEXIBLE or High Strength filament Generally food safe and requires no ventilation cons Tends to be brittle compared to ABS unless using nicer filament More expensive than ABS Harder to finish than ABS (Have fun sanding!)
  9. 9. Materials (Fancy) Nylon plastic (280-310C) Super Strong and takes a lot of abuse Great print quality Capable of more interesting shapes and gears Requires all-metal hot end Prints slow Required Heated Bed Powder deposit plastics Super cool patterns available from heat (laywood) Extremely lightweight (wood) or heavy (metal) Expensive Wood is Porous and floats Often print quality is ugly Prone to Jams Metal filaments polish and look like metal
  10. 10. Materials (Flexible) NinjaFlex / FilaFlex (280-310C) Super Strong and takes a lot of abuse Poor adhesion Very Flexible Requires all-metal hot end Needs heated bed Prints slow Expensive Flexible PLA (210-250C) Cheaper than NinjaFlex Not as flexible as NinjaFlex Various Flexibilities Among most expensive filaments Available in more colors and Clear! Can be printed on a “Normal” printer
  11. 11. Tools (Slicers) CURA pros Free Easy to Use Pretty and simple Reliable cons Print quality is not always 100% doesn’t alert you to bad STL files Not great options for infill algorithms Really, not a lot of super advanced options available
  12. 12. Tools (Slicers) KISSlicer pros Free and Open Source Very configurable Decently easy to use Reliable Great print quality cons Not as easy to use or set up Learning Curve for settings not as easy to arrange no real STL manipulation
  13. 13. MISTAKES Overhang Loose Belts Bad Calibration Retraction not enabled Poor support Shifting Knocking the machine Loose Belts Printer Blip GCode did not slice well
  14. 14. MISTAKES Does not print Object has no density Bad Infill Settings Net Meshes are not connected Corrupted GCode Sometimes fixable with NetFAB Stability issues Too Thin Not enough support Lack of Brims or Rafts used for printing Bad Rotation Item Shifts or Pops off
  15. 15. Post-processing 1: Chemical smoothing Examples : Acetone on ABS plastic MEK or Paint Stripper on PLA 2: Painting Examples : Acrylic Paint, Krylon Fusion 3: Paint-on smoothers Examples : XTC-3D by Smooth-on (Epoxies which work on all materials)
  16. 16. Other Types of Printers (High Accuracy) DLP / Laser Resin (Fine precision Plastic) Laser SLA Powder (Plastic, Colors, Metals) Laser SLA Multi-Material (Flexible and Solids)
  17. 17. 3D Printing Services
  18. 18. ENJOY MAKING!