Week 5
Theme: 3D Scanning and Printing
Group assignment
test the design rules for your 3D printer(s).
Individual assignment
- design and 3D print an object (small, few cm3, limited by printer time) that could not be made subtractively
- 3D scan an object (and optionally print it)
Introduction
Individual assignment
For this assignment, I designed and 3D printed a gear that could not be manufactured through subtractive methods due to its intricate geometry and parameter-driven adaptability. The object was designed using SolidWorks and fabricated using a Creality Ender 3 V2 3D printer.
1.SolidWorks Modeling :
The gear was modeled in SolidWorks, a CAD software that allows parametric design.
The design included complex features such as internal fillets and precise tooth profiles that would be challenging to manufacture using traditional subtractive methods.
2. Equations and Parameters :
A SolidWorks equation table was utilized to define key parameters such as gear teeth and diameter.
The equation-based design approach ensured that modifications could be made easily by changing the values in the parameter table.
3. Exporting to STL Format :
After finalizing the design, the model was exported in STL format for 3D printing.
This format is essential for slicing and preparing the model for additive manufacturing.
4. Ultimaker Cura Slicing Software :
The STL file was imported into Ultimaker Cura, a slicing software used to generate the G-code for the 3D printer.
Support structures were added using the raft method to ensure better adhesion and print stability.
The slicing preview displayed the layer-by-layer breakdown of the print job.
5. Printing with Creality Ender 3 V2 :
The G-code was transferred to the Creality Ender 3 V2 printer.
The first few layers were closely monitored to ensure proper adhesion to the print bed.
The print was completed successfully, maintaining the intricate details of the gear.
3D Scanning Process
1. Selecting the Object
The object chosen for scanning was a small toy. This was selected due to its distinct shape and well-defined features, making it suitable for 3D reconstruction.
The first image shows the real toy used for scanning.
2. Capturing Multiple Angles
To ensure an accurate 3D scan, multiple images of the toy were taken from different angles using the Kiri Engine.
The next image displays the collected photos, covering all perspectives required for proper model generation.
The settings were adjusted to export the model in OBJ format, which is compatible with 3D printing and further modifications.
3. Rendering and Viewing the 3D Model
The app processed the images and generated a 3D model, converting it into a mesh representation.
Once the rendering was complete, the OBJ file was displayed within the Kiri Engine.
The generated model was inspected for accuracy, ensuring that the shape and details were preserved from the original object.
4. Final Out
The next image presents the final 3D file of the scanned object.
Once the rendering was complete, the OBJ file was displayed within the Kiri Engine.
The generated model was inspected for accuracy, ensuring that the shape and details were preserved from the original object.
