Intro to 3D Workshop
- 1. Intro to 3D Workshop
- 2. What is CAD? Computer Aided Design Traditionally “Engineering”, technically applies to all design work created using a computer Uses: Paintball guns, cars, video game characters CAM - Computer Aided Machining/Manufacturing Three types of modeling; poly modeling, curve modeling (related to parametric modeling), and sculpting
- 3. History of CAD Earliest users: Aerospace & Automotive First graphic system developed by MIT’s Lincoln Lab for USAF in 1950 Originally grew from 2D Drafting Traditionally split into “Engineering/ Design” and “Computer Graphics” In Engineering/Design: Dassault Systems (SolidWorks), Autodesk (Fusion 360, Inventor, AutoCAD), Siemens (NX), ANSYS (SpaceClaim), PTC (Pro/Engineer), In Computer Graphics: Autodesk (Maya, 3DS Max) , Luxology/The Foundry (modo, others), Maxon (Cinema 4D) Further Reading: Marian Bozddoc's History of CAD CAD Software History
- 4. What’s a 3D model made of? Model & Render Credit: “Sub-D/Polygon Cockpit” by Jordan Pelovitz
- 5. Solids Example Software Model & Render Credit: “chassis” by João Carlos Florencio (on GrabCAD)
- 6. Model Credit: “Reversys Boat” by Studio Oxyde http://www.reversysboat.com/ Model Credit: “Alias Modeling Training” by Benjamin Baron https://www.behance.net/Ben_Baron Example Software NURBS (Non-Uniform Rational B-Splines)
- 7. Model Credit: “Volcatron” by Rouhollah Toghyani www.toghyani.com Model Credit: “Sombreuil” by Joffrey Ferrandes https://www.artstation.com/artist/joffrey_ferrandes Example Software Polygons/Sub-D
- 8. VoxelShop by BlackFlux Software Model Credit: C. D. Werner, F. B. Sachse and O. DösselInstitute of Biomedical Engineering, University of Karlsruhe, 76128 Karlsruhe, Germany Model Credit: AlchemistID, 3D Coat ForumsImage Credit: Microsoft Image Credit: Wikipedia Voxels Example Software
- 9. Why use solids? Easy to avoid common model errors (Model will always be “watertight”) Easy to calculate volumes. Leads to Parametric Solid Modeling, which is used by professional designers & engineers.
- 10. Why learn 123D Design? Best interface from Autodesk. It’s free. Easy to learn, good place to start for 3D Printing & Solid Modeling.
- 11. The Basics CAM: Computer Aided Manufacturing CNC: Computer Numerical Control gCode - Programming language for CNC cutters & 3D Printers Before CNC, there was manual control & still is!
- 12. FDM Fused Deposition Modeling 3D Printers: Cheap, moderately accurate, easy to make & maintain Properties: Tough parts with visible print lines, ABS/PLA Plastic
- 13. SLA Stereolithography 3D Printers: Expensive, best accuracy, can use chemicals to clean parts, laser-based Properties: Specialty resins, parts degrade in UV light