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Kelvin S.

Mechanical & Product Design Engineer, SolidWorks, AutoCAD, Fusion 360 & 3D Modeling

London, United Kingdom

Global rank:

19,801 / 144,737

Skill pts: 5

2D & 3D by Catia V5 2D & 3D Renderings 2D/3D AUTOCAD, autode Creo cabling Rhinoceros 3D

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About

I’m a Mechanical & Product Design Engineer specializing in SolidWorks, AutoCAD, Fusion 360, 3D CAD modeling, mechanical design, and product development. I help businesses, engineers, manufacturers, startups, and inventors turn ideas, sketches, drawings, or existing parts into accurate, practical, and manufacturing-ready designs.

My work covers the full CAD design process, from concept development and 3D modeling to detailed engineering drawings and manufacturing documentation. Whether you need a product designed from scratch, an existing component reverse engineered, or an existing CAD model modified and improved, I focus on creating designs that are accurate, functional, and easy to manufacture.

What I Can Help You With

• Mechanical Design & Product Design
• 3D CAD Modeling & 3D Product Modeling
• SolidWorks Part & Assembly Modeling
• AutoCAD 2D Drafting & Technical Drawings
• Fusion 360 CAD Modeling & Product Development
• Engineering Drawings & Manufacturing Drawings
• Detailed 2D Drawings & 3D Models
• Assembly Design & Component Design
• Sheet Metal Design
• Machine Design & Mechanical Components
• Reverse Engineering from STL, STEP, PDF, sketches, images, or existing parts
• Design Modifications & CAD Revisions
• Design for Manufacturing (DFM)
• Prototyping & 3D Printing Design
• CNC Manufacturing Design & CAD Preparation
• Product Development & Concept Design
• Technical Documentation
• Exploded Views & Assembly Documentation
• Dimensions, Tolerances & Manufacturing Specifications
• CAD Conversion and Model Reconstruction

Software & CAD Tools

SolidWorks | AutoCAD | Fusion 360 | Siemens NX | Autodesk Inventor | Creo | CATIA | Rhino | Microvellum | Vectric

I can work from hand sketches, PDFs, photographs, reference dimensions, existing CAD files, STL/STEP files, or your technical specifications, depending on what your project requires.

My priority is not simply creating a model that looks right. I pay attention to dimensions, clearances, tolerances, assembly requirements, manufacturability, material considerations, and the way the final product will actually be produced.

If you already have an idea, drawing, reference file, or existing component, send it over. I can help turn it into a clean, accurate, and professional CAD design ready for the next stage of your project.

Experience

PCB CASE ENCLOSURE DESIGN PCB Design Engineer · Freelance Jan 2026 – Present 7 mos United Kingdom Designed a custom PCB case enclosure optimized for protection, ventilation, and manufacturability. The project involved creating a 3D CAD model based on the exact PCB dimensions and component layout, ensuring a precise internal fit and external accessibility for ports and connectors. The enclosure includes snap-fit features, mounting holes, and proper airflow channels, making it suitable for both 3D printing and CNC machining. The final design is durable, compact, and ready for prototyping or mass production.
Gear Mechanism in Fusion 360 Gearbox Software · Freelance Apr 2024 – Present 2 yrs 4 mos Canada The client wants me to design the following Gear mechanism. He provides me with the Gear Module, No. of Teeth, and Thickness with rough sketches. I turn his requirements into a 3D Model using Fusion 360.
Car Engine in Fusion 360 Car Studio SNC · Freelance Mar 2024 – Present 2 yrs 5 mos United States The client provides the sketches with dimensions and I design the following 3D Model using Fusion 360.
3d model or 2d drawing using solidworks Product Development Technologies (PDT) · Freelance Nov 2023 – Present 2 yrs 9 mos United States Redesigning of the DJI Gimbal:

The client reaches out to me and want me to redesign the grip handle of a Dji gimbal. I redesigned the DJI Gimbal according to his requirements and in the end, he leaves these words for me.

"Very diligent and solution based. I got caught up on a design feature and he was able to find a working solution. Thanks! Will order again."
3D Model and Render Production Techniques · Freelance May 2023 – Present 3 yrs 3 mos United Kingdom The client wants me to provide him 3D Model in SolidWorks with Rendering. I Modeled it with the help of the 2D Drawings he sent and did Renders in KeyShot.

Education

ENGINEEING UNIVERSITY Bsc, ENGINEERING 2016 – 2020

Other experience

FIDGET KEYCHAIN GEAR MECHANICAL DESIGN Fidget Keychain Gear Mechanical Design

Designed a compact mechanical fidget keychain gear combining functional movement, durability, and an engaging tactile experience. The design features interlocking gears engineered to rotate smoothly while maintaining a compact form suitable for everyday carry.

The project involved developing the complete 3D CAD model, focusing on accurate gear geometry, proper clearances, alignment, and mechanical interaction between moving components. The housing and keychain attachment were also designed for strength and practical usability.

The final model was optimized for 3D printing and rapid prototyping, with attention to printability, tolerances, assembly, and reliable movement. This project demonstrates practical mechanical design skills applied to a small, functional consumer product.
PRINTABLE SCREEN HOLDER FOR TOUGH BOOK Printable Screen Holder for Toughbook

Designed a custom 3D-printable screen holder for a Toughbook, developed to provide secure support and proper positioning of the display during use. The design focused on achieving a strong yet lightweight structure while maintaining accurate fitment with the existing device.

The holder was modeled with precise mounting points, clearances, and reinforced areas to improve durability and stability. The geometry was optimized for FDM 3D printing, making it suitable for rapid prototyping, replacement parts, and practical field use without requiring complex post-processing.
WATERPROOF WEARABLE ENCLOSURE SOLIDWORKS DESIGN Waterproof Wearable Enclosure Design

Designed a compact and durable waterproof wearable enclosure for protecting electronic components in demanding environments. The enclosure was developed with a focus on secure component placement, ergonomic form, and reliable protection against water and external elements.

The 3D CAD model includes carefully designed housing features, sealing interfaces, mounting points, and functional openings while maintaining a sleek wearable profile. The design was optimized for 3D printing and prototype manufacturing, providing a strong foundation for testing and future production.
IWATCH SILICONE MOLD DESIGN I developed a production-ready silicone mold design for Apple iWatch straps, tailored to meet exact specifications for fit, comfort, and durability. The project involved detailed 3D CAD modeling to ensure precise alignment with iWatch dimensions, including button placement and strap curvature. The mold incorporates optimized draft angles, venting, and ergonomics to support both manual and injection molding. This design is suitable for rapid prototyping and scalable manufacturing.
3D BOTTLE CAD DESIGN 3D Bottle CAD Design

Developed a detailed 3D CAD bottle design with a strong focus on product form, proportions, functionality, and manufacturing feasibility. The model was created from concept to finished digital prototype, carefully shaping the bottle body, neck, shoulder transitions, and closure interface for a clean and refined appearance.

Special attention was given to surface continuity, dimensional accuracy, wall thickness, and manufacturability, ensuring the design can serve as a reliable foundation for prototyping and production. The finished CAD model is suitable for visualization, product development, 3D printing, and further tooling or mold development.
COIN ORNAMENT HOLDER DESIGN Coin Ornament Holder Design

Designed a custom coin ornament holder featuring a clean, functional structure optimized for both aesthetics and practical use. The project involved developing the 3D CAD model with precise dimensions, smooth geometry, and secure coin placement while maintaining an attractive ornamental appearance.

The design was created with manufacturing and 3D printing considerations in mind, ensuring suitable wall thicknesses, clearances, and easy assembly. The final CAD model provides a professional foundation for prototyping, customization, and production.

Licenses & Certifications

Mechancial And Electrical Engineer Engineering Academy Jan 2021 – Present