Prototyping & Development
At Cranfield Group, prototyping is where ideas become reality. Our ‘leave it with us’ approach means we take ownership of your development challenges, finding creative solutions to validate designs and solve technical problems before committing to production tooling.
We understand that every project has unique requirements – some need quick visual models, others require functional testing under real-world conditions. We flex our prototyping approach to match your specific needs, timeline and budget. Our expertise in both prototyping and production means we develop solutions with the end goal in mind, ensuring seamless transition to full manufacture.
Why Choose Cranfield Group
Practical Prototyping With Production in Mind
Our prototyping and development services deliver real value throughout your project:
- Problem-Solving Focus - When challenges arise during testing, we don't just report issues - we find solutions and implement improvements.
- Flexible Approach - From quick 3D prints to production-representative samples, we adapt our methods to your requirements and budget.
- Production-Grade Materials - Test with the actual polymers you'll use in manufacture, ensuring accurate performance validation.
- Integrated Service - As your complete manufacturing partner, prototypes benefit from our full range of capabilities including assembly and secondary operations.
- Continuous Refinement - We listen, learn and improve through each iteration, always striving for the optimal solution.
- Seamless Scale-Up - Prototypes developed with our production methods in mind ensure smooth transition to full manufacture.
Our Development Process
1. Requirements Analysis
2. Prototype Strategy
3. Rapid Production
4. Testing & Feedback
5. Design Optimisation
6. Production Planning
1. Requirements Analysis
Requirements Analysis
We start by listening to understand your testing needs, performance criteria and development timeline. Every project is unique – we flex to match your approach.
2. Prototype Strategy
Prototype Strategy
Together we’ll identify the most suitable method – whether that’s a quick 3D print for concept validation or injection moulded samples for production-level testing.
3. Rapid Production
Rapid Production
Using advanced prototyping equipment, we produce functional parts quickly. When issues arise, we take ownership and find solutions.
4. Testing & Feedback
Testing & Problem Solving
Supporting your testing programme with dimensional verification and assembly trials. When something doesn’t work, we see it as an opportunity to improve.
5. Design Optimisation
Design Optimisation
Each iteration incorporates learnings and improvements. We’re committed to continuous improvement in your products.
6. Production Planning
Production Planning
Smooth transition from validated prototype to production, leveraging our complete manufacturing capabilities.
Industries we serve
Our prototyping expertise adapts to the specific validation requirements of each industry:
Functional prototypes for testing in demanding automotive environments, including temperature cycling and vibration testing.
Prototype pumps, valves and fluid handling components for flow testing and chemical compatibility validation.
Enclosure prototypes for fit testing, thermal analysis and electromagnetic compatibility assessment.
Medical device prototypes supporting regulatory submissions and clinical evaluation requirements.
Polymer prototypes demonstrating performance equivalence to metal components through mechanical testing.
Prototype assemblies combining rigid and flexible components for seal performance validation.
Environmental testing prototypes validating IP ratings and outdoor durability requirements.
Supporting businesses with prototype development for market testing and investor demonstrations.
Ready to validate your designs? Leave your prototyping challenges with us. Our team will guide you through the options and develop the right solution for your project. Visit us to see our prototyping capabilities in action.
Prototyping Methods
The Right Technology for Your Requirements
3D Printing – Ideal for initial concept models and complex geometries. We use industrial-grade 3D printing to produce strong, functional prototypes suitable for assembly and basic testing.
Short-Run Injection Moulding – Using prototype or bridge tooling to produce small quantities of parts in production materials. Perfect for final validation before production tool investment.
CNC Machining – For high-precision prototypes requiring tight tolerances or specific surface finishes. Suitable for both plastic and metal components.
Soft Tooling – Aluminium or pre-hardened steel tools for producing hundreds to thousands of prototype parts, bridging the gap between 3D printing and production tooling.
Each method offers different benefits in terms of cost, lead time and capability. We guide you to the most appropriate solution for your specific requirements.
Additional Services
Integrated Support Throughout Development
Our comprehensive capabilities support every stage of product development:
Expert engineering support to optimise components for efficient manufacture and superior performance.
High-precision manufacturing of thermoplastic components from prototype to high-volume production.
Specialist manufacturing of rubber components using dedicated thermoset processing equipment.
Complete mould tool solutions from design through manufacture, maintenance and lifetime support.
Value-added processes including printing, welding, and kitting. Turn basic mouldings into complete, market-ready products.
Complete assembly services transforming components into finished products. From simple two-part assemblies to complex multi-component builds.
Custom packaging design and flexible logistics solutions. From bulk packaging to JIT delivery supporting your production schedules.
Not sure which services you need? Our technical team can guide you through the options and develop the right solution for your project.
Frequently Asked Questions
Your Prototyping Questions Answered
How quickly can you produce prototypes?
3D printed prototypes typically within 3-5 days. Injection moulded prototypes using soft tooling within 2-3 weeks depending on complexity.
Can prototypes use production materials?
Yes, we specialise in functional prototypes using actual production-grade polymers for accurate testing.
What quantities can you produce?
From single prototypes to thousands of pre-production parts, depending on the method selected.
Do you provide test reports?
Yes, we can provide dimensional inspection reports, material certificates and test documentation as required.
Can you help with design modifications?
Absolutely. We provide detailed feedback on manufacturability and can implement design changes between prototype iterations.
What file formats do you need?
We accept all major CAD formats. STEP files are preferred for 3D printing and CNC machining.
Whether you need a single prototype or a comprehensive development programme, leave it with us. We’ll find the right solution for your validation needs. Contact our team today or visit us to see how we transform concepts into proven products.