I am a freelance mechanical design engineer focused on practical, manufacturable mechanical design for production environments.

I help manufacturing companies, machine builders, and hardware teams turn ideas, machine concepts, and production problems into usable CAD models, manufacturing drawings, fixtures, jigs, technical documentation, and design-for-manufacturing improvements.

My work is not only about creating 3D geometry. The real goal is to create mechanical solutions that can be manufactured, assembled, inspected, maintained, and used in production with as little unnecessary complexity as possible.

Engineering focus

My main engineering focus areas are:

• production-oriented 3D CAD modelling,
• mechanical parts and assemblies,
• fixtures, jigs, and manufacturing aids,
• special-purpose machinery,
• manufacturing drawings,
• DFM support,
• BOM preparation,
• CAD model cleanup and redesign,
• technical documentation,
• practical mechanical problem solving,
• production automation-related mechanical design support.

I am especially interested in projects where mechanical design has a direct impact on production stability, assembly repeatability, operator work, inspection reliability, or manufacturing cost.

What I can help with

I can support engineering and manufacturing teams with:

• creating manufacturable 3D CAD models,
• preparing production drawings,
• improving existing machine parts or assemblies,
• designing fixtures, jigs, and simple production aids,
• simplifying overcomplicated mechanical concepts,
• reviewing designs from a manufacturability point of view,
• preparing BOMs and technical documentation,
• cleaning up imported or legacy CAD models,
• supporting design changes caused by production feedback,
• documenting design decisions clearly.

Typical project situations include:

• a concept needs to be turned into a usable CAD model,
• an existing part is difficult or expensive to manufacture,
• a fixture or jig is needed to make production more stable,
• drawings or documentation are missing or unclear,
• a design needs to be simplified before manufacturing,
• a production problem requires a mechanical design improvement.

CAD and engineering tools

I work with engineering tools such as:

• PTC Creo,
• Autodesk Inventor,
• Onshape,
• 2D/3D CAD-based technical documentation workflows.

The tool itself is not the main value. The important part is using CAD in a production-aware way: with clear structure, usable geometry, correct design intent, and documentation that supports manufacturing instead of creating confusion.

Engineering approach

My design approach is simple:

A good mechanical solution should be robust, understandable, manufacturable, and maintainable.

I prefer practical mechanical design over unnecessary complexity.

My work is guided by the following principles:

• reduce part count where it makes sense,
• avoid unnecessary precision where it does not create real value,
• design parts with manufacturing processes in mind,
• make assemblies easier to build and service,
• document important design assumptions,
• keep drawings clear and production-oriented,
• use simple solutions before complex ones,
• separate real engineering value from decorative CAD work.

For me, a good design is not finished when the model looks good on screen. It is finished when the part can be manufactured, the assembly can be built, and the production team can understand what has to be done.

Typical deliverables

Depending on the project, deliverables may include:

• 3D CAD models,
• mechanical assemblies,
• manufacturing drawings,
• fixture or jig concepts,
• BOMs,
• DFM review notes,
• design change proposals,
• technical documentation,
• simplified concept studies,
• engineering notes for decision support.

Case studies and technical notes

This website contains selected engineering notes and case-study-style content.

The purpose of these materials is to show how I think about mechanical design, production problems, manufacturability, fixtures, jigs, and practical engineering decisions.

Where needed, examples are simplified, generalized, or anonymized to avoid sharing confidential customer or project information.

Availability

I am open to freelance mechanical design projects, consulting-style engineering support, and cooperation with manufacturing companies, machine builders, system integrators, or hardware development teams.

The best fit is a project where practical mechanical design, production experience, and structured problem solving are more important than simply producing CAD geometry.

Contact

For professional inquiries, the best channels are:

LinkedIn: linkedin.com/in/lajos-guba
GitHub: github.com/lguba71
Email: lguba71@hotmail.com