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

[cite_start]The entire project was developed in Autodesk AutoCAD, adhering to a 1:1 scale with centimeters as the working unit[cite: 63]. 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.

• [cite_start]2D Drafting: Profiles for components like the roof, bench, and waste receptacle were drawn using Line [cite: 69, 91, 102][cite_start], Offset (e.g., 2cm for bench planks and receptacle walls) [cite: 92, 102][cite_start], and Arrayrect (for repetitive elements like road markings)[cite: 142].
• [cite_start]3D Extrusion: The Presspull command was used extensively to extrude these 2D shapes into 3D solids[cite: 72, 92, 105, 153].

2. Direct 3D Modeling

Complex components were modeled directly using 3D primitives.

• [cite_start]Primitives Used: Box [cite: 110, 135, 171][cite_start], Cylinder [cite: 111, 122, 128][cite_start], Sphere [cite: 128, 187][cite_start], and Cone[cite: 186].
• [cite_start]Boolean Operations: The Subtract command was used to create hollow shapes, such as the inner part of the waste bin [cite: 110] [cite_start]and the luminaire housing[cite: 128].

3. Assembly and Modification

Components were positioned and adjusted using standard transformation tools.

• [cite_start]Manipulation: Move [cite: 75, 128, 166, 174, 200] [cite_start]was used for assembly, Scale [cite: 255] [cite_start]to resize elements like trees, and Arraypolar to create circular patterns (e.g., camera LEDs)[cite: 188].
• [cite_start]Organization: The Layer command was used from the beginning to organize components and manage properties[cite: 69].

4. Visualization

Basic materials and textures were applied for realism.

• [cite_start]Materials: The Mat command was used to apply textures from the library or external files (e.g., photovoltaic cells, leaves, bark, road surfaces)[cite: 135, 161, 232].
• [cite_start]Decals: The Attach command was used to apply 2D images, like the recycling logo and bus stop sign, onto 3D faces[cite: 116, 123].

Component Modeling Breakdown

• [cite_start]Roof: Started as a 170x380cm 2D rectangle (Line) [cite: 69][cite_start], then extruded to a 20cm height using Presspull[cite: 72]. [cite_start]Text was added and positioned with Move[cite: 75].
• [cite_start]Bench: A detailed 2D side-profile was drawn (Line)[cite: 91]. [cite_start]Planks were defined using Offset (2cm) [cite: 92] [cite_start]and the entire profile was extruded with Presspull[cite: 92].
• [cite_start]Surveillance Camera: Modeled directly in 3D[cite: 185]. [cite_start]The main body is a Cylinder [cite: 186][cite_start], with a Cone and Sphere forming the lens assembly[cite: 186, 187]. [cite_start]A circular pattern of spheres (Arraypolar) simulates the IR LEDs[cite: 188]. [cite_start]The mounting arm and hood were also modeled as 3D solids[cite: 189].
• [cite_start]Road & Sidewalk: Line defined the lane edges[cite: 142]. [cite_start]The bus bay was created with Line at a 45° angle[cite: 144]. [cite_start]The curb was generated with Offset (20cm)[cite: 146]. [cite_start]The "zig-zag" marking was drawn with Line commands based on a 30° angle[cite: 164, 165]. [cite_start]The BUS lettering was added with Text[cite: 166]. [cite_start]All 2D geometry was converted to 3D with Presspull[cite: 153].
• [cite_start]Decorative Trees: The trunk and branches were modeled as pyramids with an octagonal base[cite: 214]. [cite_start]A single leaf was modeled using Line and Presspull [cite: 220][cite_start], then duplicated and distributed using Arraypolar and Copy-Paste[cite: 226].

Project Gallery

More project photos can be found in the documentation.