BusStationACAD

Faculty project of "Universitate" bus station located in Bucharest made in AutoCAD

CAD Project: 3D Bus Stop Model

This repository contains a 3D model of a modern bus stop, created as a project for the "Computer-Aided Design" course at the University of Bucharest. The primary focus was on the technical execution and 3D modeling process using Autodesk AutoCAD.

Academic Context

• Institution: University of Bucharest
• Faculty: Faculty of Mathematics and Informatics
• Program: Computer Science and Information Technology
• Course: Computer-Aided Design (Proiectare Asistată de Calculator)
• Student: Dinu Bogdan-Marius
• Coordinator: Prof. Drăgan Mihăiță

Technical Summary & Modeling Workflow

The entire project was developed in Autodesk AutoCAD, adhering to a 1:1 scale with centimeters as the working unit. The core methodology involved a hybrid 2D-to-3D and direct 3D modeling approach.

1. 2D-to-3D Extrusion

The most common workflow was to first create precise 2D profiles and then give them depth.

• 2D Drafting: Profiles for components like the roof, bench, and waste receptacle were drawn using Line , Offset (e.g., 2cm for bench planks and receptacle walls), and Arrayrect (for repetitive elements like road markings).
• 3D Extrusion: The Presspull command was used extensively to extrude these 2D shapes into 3D solids.

2. Direct 3D Modeling

Complex components were modeled directly using 3D primitives.

• Primitives Used: Box , Cylinder , Sphere , and Cone.
• Boolean Operations: The Subtract command was used to create hollow shapes, such as the inner part of the waste bin and the luminaire housing.

3. Assembly and Modification

Components were positioned and adjusted using standard transformation tools.

• Manipulation: Move was used for assembly, Scale to resize elements like trees, and Arraypolar to create circular patterns (e.g., camera LEDs).
• Organization: The Layer command was used from the beginning to organize components and manage properties.

4. Visualization

Basic materials and textures were applied for realism.

• Materials: The Mat command was used to apply textures from the library or external files (e.g., photovoltaic cells, leaves, bark, road surfaces).
• Decals: The Attach command was used to apply 2D images, like the recycling logo and bus stop sign, onto 3D faces.

Component Modeling Breakdown

• Roof: Started as a 170x380cm 2D rectangle (Line) , then extruded to a 20cm height using Presspull. Text was added and positioned with Move.
• Bench: A detailed 2D side-profile was drawn (Line). Planks were defined using Offset (2cm) and the entire profile was extruded with Presspull.
• Surveillance Camera: Modeled directly in 3D. The main body is a Cylinder , with a Cone and Sphere forming the lens assembly. A circular pattern of spheres (Arraypolar) simulates the IR LEDs. The mounting arm and hood were also modeled as 3D solids.
• Road & Sidewalk: Line defined the lane edges. The bus bay was created with Line at a 45° angle. The curb was generated with Offset (20cm). The "zig-zag" marking was drawn with Line commands based on a 30° angle. The BUS lettering was added with Text. All 2D geometry was converted to 3D with Presspull.
• Decorative Trees: The trunk and branches were modeled as pyramids with an octagonal base. A single leaf was modeled using Line and Presspull , then duplicated and distributed using Arraypolar and Copy-Paste.

Project Gallery

 More project photos can be found in the documentation.