Poly Chair – Welding Practice |Sheet Metal Fabrication Project

The Poly Chair is a unique geometric chair design made from multiple flat panels that come together to form a faceted, sculptural seat. This digital fabrication project is designed not only as a finished furniture piece, but also as an excellent welding and metal fabrication practice project.

The design allows you to practice cutting, bending, positioning, tack welding, alignment, and final assembly while creating a distinctive modern chair.

Perfect for Welding Practice

The Poly Chair is ideal for:

• Welding students and beginners
• Metal fabrication training
• Workshop practice projects
• DIY furniture makers
• Fabrication schools and training centres
• CNC and sheet-metal workshops
• Prototyping and design projects

The individual panels can be cut, bent, positioned, and assembled progressively, giving you practical experience with sheet-metal fabrication and welding techniques.

Fabrication-Friendly Design

The package includes the information required to manufacture the chair from flat sheet material.

Provided with the design:

• DXF cutting files for CNC laser, plasma, or other cutting methods
• Fabrication guide for assembly
• Bending angles and directions
• Panel layout and assembly guidance
• Reference dimensions for the finished design

The supplied bending information helps you understand how each panel should be formed and oriented before assembly.

Suitable Materials

The design can be produced using thin sheet steel for a functional metal chair or paper/cardboard for a scale model and assembly practice.

For metal fabrication

Suitable thin-gauge steel can be used depending on your preferred fabrication method, equipment, and required strength.

For prototyping

Paper or cardboard can be used to create a scale model before committing to metal. This is particularly useful for students and fabricators who want to understand the panel arrangement and assembly sequence.

Approximate Overall Dimensions

• Width: 697mm
• Height: 950 mm
• Depth: approximately 816 mm

These dimensions provide a compact yet distinctive chair form suitable for furniture prototyping and fabrication practice.

What You’ll Receive

• CNC-ready DXF cutting files
• Detailed fabrication guide
• Bending angles
• Bending directions
• Assembly reference information
• Digital files for fabrication and prototyping

Digital Product Only

This listing is for digital fabrication files and instructions only. No physical chair, sheet metal, hardware, or finished product will be shipped.

Important: If fabricating the chair for actual use, select an appropriate material thickness and fabrication method for the intended load and application. Proper welding, finishing, structural inspection, and testing should be carried out before the chair is used.

Build It. Weld It. Learn From It.

Whether you’re learning welding, teaching sheet-metal fabrication, or looking for an interesting CNC furniture project, the Poly Chair provides a practical way to turn flat sheet material into a striking three-dimensional geometric chair.