Drawing No. SG—2026 · Portfolio Sheet

Shivamani
Gorantala.

Mechanical Design & Robotics Engineer — CAD, DFMA & Precision Mechanisms

Location
Hyderabad, IN
Current Role
Keystone Robotix
Experience
2+ Yrs
Scale
1 : 1

Mechanical Design Engineer building the guts of machines that cook, chop, and stir — spatula gearboxes, conveyor systems, robotic arms. Hands-on across SolidWorks, PTC Creo, and Fusion 360, with a habit of reverse-engineering the problem before modeling the solution.

Industrial six-axis robotic arm rendered over a blueprint gridRef. Assy — 6-Axis Manipulator
01

Skills & Tolerances

Mechanical Design & Drafting±0.01
3D Modeling & Assembly±0.01
GD&T±0.02
DFMA±0.02
Stack-up Analysis±0.03
Reverse Engineering±0.03
Concept Designing±0.04
Rapid Prototyping / 3D Printing±0.04
Drawing Revision & Documentation±0.05
Design Optimization & Problem-Solving±0.05
Software Stack
SolidWorksPTC CreoFusion 360AutoCADSolid EdgeSiemens NXAnsysPython
Certifications — SolidWorks · PTC Creo · AutoCAD
02

Revision History — Experience

Rev
Role / Company
Period
  • Robotic Stirring Systemengineered specialized spatulas with a multi-stage gearbox, boosting stirring speed by 2.5x while optimizing torque and coverage across cooking tasks.
  • Automated Vegetable Chopperdesigned an automated cutting machine to replace manual methods, delivering high-precision output with improved safety and throughput.
  • Automated Idli Vending Machinecompleted the tray dispensing assembly; conveyor assembly currently in progress.
  • INC-Vacuum Chamberreverse-engineered and integrated a gear system for precise silver wire feed control and overfeed prevention into the furnace.
  • Process Plant Designdesigned conveyor belts and parametric staircases in SolidWorks to optimize workflow and space.
  • 2D Drafting for Grinding Machinerycreated detailed 2D drawings in Solid Edge, ensuring precision, manufacturability, and GD&T compliance.
  • Packaging Design for Automobile Partsdeveloped protective, cost-effective packaging meeting industry standards.
  • Robotic Arm 4-DOFdesigned a 4-DOF robotic arm for PCB assembly automation, focused on servo control, inverse kinematics, and 3D-printed prototyping.
03

Drawing Set — Projects

Dark CAD render of a 3D-printed five degree-of-freedom robotic arm with servo joints
SHEET 01/042025

5-DOF Robotic Arm — Design & Python Control

Designed and fabricated a 5-DOF robotic arm using SolidWorks and 3D printing, paired with a Python-based control system and real-time UI. Improved operational efficiency by 33%.

Jan 2025 – May 2025
Tubular Formula-E race car chassis frame with suspension wishbones on a dark blueprint background
SHEET 02/042024

Design & Manufacturing of Formula-E Car

Designed and built the chassis, ran stress analysis, and evaluated the suspension system. Integrated electrical systems and optimized the powertrain into a full prototype.

Mar 2024 – Apr 2024
Electric motorbike prototype with battery pack and hub motor rendered over technical drawings
SHEET 03/042023–24

Design & Manufacturing of EV-Bike

Built the chassis, analyzed stress factors, and integrated electrical systems. Optimized the powertrain into a working EV-Bike prototype.

Dec 2023 – Jan 2024
CNC pen plotter machine with aluminium gantry, stepper motors and a servo-mounted pen
SHEET 04/042022

CNC Pen Plotting Machine

Built a 2D pen plotter on Arduino Uno with GRBL, stepper drivers, and an SG90 servo. Generated G-code via Inkscape and controlled motion through UGS.

Jan 2022 – May 2022
04

Education

TKR College of Engineering and Technology
Bachelor's in Mechanical Engineering
7.7 CGPA
Oct 2022 – May 2025
Government Polytechnic College, Korutla
Diploma in Mechanical Engineering
8.5 CGPA
Jun 2019 – May 2022
Johnson Global High School
Secondary School Certification
9.2 CGPA
Jun 2018 – May 2019
05

Internships & Recognition

Swachh Bharath AbinayamOct 2018 – Dec 2018

Developed a bicycle-mounted cleaning system with rotating brushes on a metallic frame, enabling efficient sweeping while riding.

Automatic Street LightsOct 2017 – Oct 2018

Designed an automatic street light system using LDR sensors to cut power consumption on highways, with a mini city prototype to demonstrate functionality.

Award — Dec 2018

2nd Place, 45th Jawaharlal Nehru National Science Exhibition

Waste Management & Recycling category, for the Swachh Bharath Abinayam bicycle-mounted cleaning system.