3D Printing Prototyping & Mold Making

Overview

PUNI's prototyping service delivers functional samples in days, not weeks. From 3D-printed visual models to short-run cast prototypes, we bridge the gap between design and mass production.

3D Printing Capabilities

• SLA (Stereolithography): Resin printing for visual models and master patterns. Maximum size 600 × 600 × 400 mm, tolerance ±0.1 mm, layer thickness 0.05 mm
• SLS (Selective Laser Sintering): Functional nylon prototypes for fit and form testing. Excellent mechanical properties
• FDM: Large-format printing up to 1000 × 1000 × 1000 mm for jigs, fixtures and master models
• Metal SLM: Selective laser melting for small-batch metal prototypes and complex internal structures

Prototype Lead Times

• SLA/SLS samples: 3-5 working days
• Metal 3D printing: 7-10 working days
• Soft tooling (silicone mold for casting): 10-15 working days
• Rapid hard tooling (for cast prototypes): 20-25 working days
• Cast prototype from 3D printed master: 5-7 days after master approval

Mold Making

• Die casting dies: For aluminum and zinc alloy parts, designed for 100,000+ shot life
• Investment casting molds: Both wax injection dies and silicone rubber molds for short runs
• Injection molds: For engineering plastics including PEEK, POM, Nylon; single-cavity and multi-cavity options
• Stamping dies: Single-stage and progressive dies for sheet metal parts
• Forming tools: For sheet metal bending, drawing and stretching

Design for Manufacturing (DFM) Support

Free DFM review for every prototype project. Our engineers evaluate wall thickness, draft angles, parting line selection, gating design and tolerance feasibility. Typical DFM turnaround: 24-48 hours.

Supported File Formats

STEP, IGES, STP, X_T (Parasolid), SolidWorks, Pro-E / Creo, AutoCAD DWG/DXF, STL (for 3D printing direct). File review and minor repair included free of charge.

From Prototype to Production

Once your prototype is approved, we can transition to production using the same engineering data. Tooling design leverages the prototype learnings to minimise iteration in mass production. Typical 3D printed prototype → production parts in 30-45 days.