YUNHONG Z.MECHANICAL ENGINEERINGStart a project
CSWE-certified · 16+ years in manufacturing

Engineering that reaches the shop floor.

I turn concepts, sketches and existing parts into production-ready SolidWorks models, sheet-metal flat patterns and manufacturing documentation.

Discuss your projectExplore selected work
Engineering & manufacturing services

Choose the help your project needs.

Each service has its own scope, deliverables, preparation checklist and related work. Start with one area or combine them into a connected project.

01 / Mechanical design

Mechanical Design & Assemblies

Parts, interfaces, assemblies and coordinated CAD handoff.

02 / Fabrication CAD

Sheet Metal & Weldment Design

Enclosures, frames, flat patterns and welded detail.

03 / Drawings & DFM

DFM & Production Drawing Services

Manufacturability review, tolerances, BOMs and release files.

04 / Programming

AMADA Programming & Sheet Metal CAM

Bend simulation, nesting, laser and punch programming.

05 / Prototyping

3D Printing & Batch Production

Printable CAD, physical samples and repeat part batches.

06 / Reconstruction

Reverse Engineering & CAD Reconstruction

Recreate usable geometry from parts, scans and drawings.

07 / Purchasing

China Sourcing & Component Procurement

Supplier research, samples and technical coordination.

08 / Factory support

On-Site Factory Production Guidance

Local drawing clarification and production follow up.

09 / Inspection

Quality Inspection & Pre-Shipment Checks

Requirement based checks before supplier dispatch.

10 / Fulfillment

Dropshipping, Packing & Fulfillment

Order preparation, protective packing and carrier handoff.

The deliverables

Everything needed for a confident handoff.

I organize the files your fabricator, machinist or production team needs, so there is less ambiguity and fewer costly revisions.

  • Native SolidWorks parts and assemblies
  • Production drawings with GD&T and tolerances
  • Flat patterns and laser-ready DXF files
  • BOMs, exploded views and assembly instructions
  • STEP, IGES, PDF, DWG, DXF, STL and 3MF exports
  • Print-ready G-code, prototype photos and revision support
Selected work

From fabrication detail to production-ready release.

A selection of work across industrial equipment, fabricated structures, product development and manufacturing support.

01 / INDUSTRIAL EQUIPMENT

Industrial Equipment Documentation

Autodesk Inventor 2024 assemblies, coordinated 2D drawings, BOM structure and release-ready production information.

02 / STRUCTURES & WELDMENTS

Fabricated frames, cabinets & brackets

Welded structures and sheet-metal assemblies detailed for cutting, bending, welding and straightforward shop-floor handoff.

03 / AMADA PROGRAMMING

Sheet-metal programming & simulation

Flat patterns, VPSS4iE press-brake simulation, laser and turret-punch programming, plus weld-fixture support for reliable manufacturing release.

04 / MECHANICAL ASSEMBLIES

Systems where interfaces matter

BiboFill: integrated assemblies, welded frames, tube circuits, sheet-metal DXFs, STEP files and structured BOM documentation.

05 / 3D PRINTING

Functional prototypes & iteration

Designed and refined printable products for fit, function and rapid physical validation.

06 / CHINA SOURCING

China sourcing, factory support & fulfillment

China-based purchasing, on-site production guidance, quality inspection, packing and dropshipping. CNC parts are one procurement example.

A clear process

Less back-and-forth. Better manufacturing decisions.

Review

We clarify your files, material, critical dimensions and manufacturing process.

Design

I build the model and resolve practical fabrication risks before release.

Release

You receive well-organized production files, drawings and revision support.

Start a project

Have a concept, CAD file, sketch or part to improve?

Send a brief description, your target process and any existing files. I will recommend the clearest next step.

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Tell me about your project

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