Callum Ashford

Product Design Expert | CAD, STL, STEP & 3D Printing Specialist

Fiverr • Freelance

Apr 2026 - Present • 3 mos

As a Product Design Expert, I specialize in creating clean, accurate and production ready CAD models for 3D printing, prototyping, product development and manufacturing. My work focuses on STL and STEP file creation, PCB enclosure design, sheet metal modeling, DXF flat patterns, STL repair, mesh cleanup and technical CAD drawings. I help inventors, startups, engineers and product sellers turn sketches, ideas, reference images or existing files into professional digital models that are ready for printing, editing, presentation or production. I work with tools such as SolidWorks, Fusion 360, AutoCAD and Blender to deliver practical, high quality design solutions. Key achievements include completing multiple product casing concepts, 3D printable prototype models, enclosure designs, editable STEP conversions and manufacturing drawing layouts. My goal is to provide reliable CAD support with clear communication, accurate details and files that clients can confidently use for their next product stage.

Freelance CAD Product Designer | 3D Modeling & Manufacturing Files

Upwork • Freelance

Mar 2026 - Present • 4 mos

As a Freelance CAD Product Designer, I provide professional 3D modeling and product design support for clients who need accurate digital files for prototyping, 3D printing, product presentation and manufacturing. My experience includes designing custom product parts, electronic enclosures, PCB housings, sheet metal components, STL/STEP files, DXF flat patterns and technical drawing layouts. I work from sketches, reference images, dimensions, rough ideas or existing files to create clean and practical CAD models. My main focus is helping clients move from concept to a usable design file that can be printed, reviewed, edited or prepared for production. Key achievements include developing product prototype concepts, repairing STL files, converting mesh models into editable CAD formats, creating 3D printing ready models and preparing sheet metal designs with clear fabrication details. I aim to deliver accurate work, organized files, smooth communication and reliable design support for every project.