Manufacturing jigs and fixtures — 3D printed.

Project overview

A Sydney-based contract electronics manufacturer engaged ASTCAD for a rolling jig-and-fixture programme. Over 6 months, 38 custom fixtures were designed and 3D printed — assembly aids, drilling jigs, test cradles, soldering supports and component sorters — directly replacing externally-machined fixtures.

The challenge

The customer’s previous external fixture supplier had a 4-week lead time and a 3-fixture minimum order, creating bottlenecks when new products entered production. A typical product launch needed 6-12 unique fixtures, and the lead time was delaying new product introduction.

Our approach

• Standardised fixture design library with parametric features
• Direct CAD-to-printer workflow integrated with production schedule
• PETG and PETG-CF material selection for production-floor durability
• Modular base plate system for rapid fixture mounting
• Documentation system with fixture-to-product traceability

Deliverables

• 38 production-ready custom fixtures
• Fixture design library (15 parametric templates)
• Modular base plate inventory system
• Production documentation with QR-code traceability
• Operator training and fixture-design guide

Outcome

Fixture lead time dropped from 4 weeks to 3 days. The customer reports a 22% reduction in new-product-introduction cycle time. The fixture programme paid for itself in saved tooling costs within 11 months.

How we approach 3D printed jigs and fixtures

3D printed jigs and fixtures earn their keep by cutting tooling lead time from weeks to days. Our process starts on the production floor: we document the assembly or inspection step the fixture supports, capture the part geometry it must locate against, and design locating features with sensible tolerances for the chosen printing process. Materials are selected for the duty — carbon-filled nylon for stiffness, TPU for soft jaws, standard PETG or ABS for light-duty locating fixtures — and we design for the printer’s strengths, consolidating what would have been multi-part machined assemblies into single prints with compliant features built in.

Deliverables for production tooling projects

Each fixture is delivered with a parametric CAD model, a drawing defining critical locating dimensions and material/print specifications, and print-ready files with documented orientation and settings so replacements can be produced identically. Where fixtures wear, we version the design files and keep the revision history clean, letting production teams reprint the current revision on demand instead of waiting on toolroom availability.

Measuring the payoff of printed tooling

The business case for 3D printed jigs and fixtures is easy to measure: tooling lead time, tooling cost and iteration count. On typical projects we see machined fixture lead times of two to four weeks collapse to two to four days, at a fraction of the cost — which changes engineering behaviour. When a fixture iteration is cheap, teams fix ergonomic annoyances and error-proofing gaps they would previously have tolerated, and assembly quality improves in ways the original tooling budget never anticipated. We help clients track these metrics across their first few fixtures so the pilot program justifies its own expansion with data rather than enthusiasm.

If your production or quality team is still waiting weeks for machined fixtures, a pilot project is the fastest way to test the printed-tooling approach: pick one fixture with a known ergonomic or lead-time problem, and we will design, print and iterate it inside a fortnight. Most clients expand the program from there on the strength of the first result.