From Concept to Creation: Mastering 3D Design, and Hands-on Practices.
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Click Here1. Foundations of 3D Design
- Overview of manufacturing: Subtractive (CNC machining) vs. additive (3D printing).
- Why 3D design matters: Speed, customization, and prototyping.
- Software Installation: Assist participants in downloading free tools (e.g., TinkerCAD, Fusion360 for students).
- Activity: Icebreaker – Design a simple 2D object (e.g., a chair) using pen/paper and share ideas.
- Orthographic/isometric projections.
- Dimensioning, tolerances, and scale.
- Projections of planes/solids (cubes, cylinders).
- Activity: Sketch orthographic views of a simple object (e.g., a dice).
- Interface walkthrough (toolbars, workspace, shortcuts).
- Basic tools: Extrude, revolve, fillet, chamfer.
- Parametric vs. direct modeling.
- Activity: Create a 3D keychain with text/logo in CAD software.
- Assignment: Design a 2D sketch to convert to 3D on Day 2.
2. 2D to 3D Conversion & Advanced Modeling
- Troubleshoot common CAD errors (e.g., unconstrained sketches).
- Discuss real-world applications of 3D modeling (e.g., product design).
- Activity: Participants present their 2D bookshelf sketches; group feedback.
- Step-by-step demo: Turning 2D sketches into 3D models.
- Advanced tools: Loft, sweep, boolean operations.
- Design for assembly (e.g., interlocking parts).
- Activity: Convert the 2D bookshelf sketch into a 3D model with shelves, supports, and joints.
- Assignment: Export the model as an STL file for Day 3 printing.
- Stress analysis basics (simulate load-bearing structures).
- Hollowing, rib design, and material efficiency.
- Activity: Optimize the bookshelf model for lightweight 3D printing.
3. 3D Printing, Post-Processing & Final Projects
- Technologies: FDM (common), SLA (resin), SLS (industrial).
- Materials: PLA (beginner-friendly), ABS (durable), PETG (flexible).
- File Formats: STL vs. OBJ vs. 3MF.
- Activity: Compare printed samples of PLA vs. ABS (strength, texture).
- Slicing demo (Cura/PrusaSlicer): Layer height, infill, supports.
- Printer setup: Bed leveling, nozzle temperature, filament loading.
- Activity 1: Slice the bookshelf model and start group printing.
- Activity 2: Troubleshoot live issues (e.g., warping, stringing).
- Sanding, priming, and acetone smoothing (for ABS).
- Painting/assembly: Use adhesives (super glue, epoxy).
- Activity: Refine a printed object and assemble multi-part designs.
- Design and print a functional object (e.g., plant holder, puzzle).
- Constraints: Must use <50g of material and fit within 2 hours of print time.
- Showcase: Groups present their work, explaining design choices and challenges.
- Case Studies: Automotive (prototyping), healthcare (prosthetics).
- Certificates & Feedback: Distribute participation certificates and collect feedback forms.
Hands-On Project
3D Workshop
Designing in CAD
Technical Design Stage
Finalized Design
Printing in Process..
Final Product
Solar Power Bank 3D Model
In-House Designed Product