Core Mechanical Design

// Frolick baby teether

Give them something to drooool over.

We developed a prototype concept into a fully certified, volume-production consumer product. The core challenge was engineering a complex dual-material overmoulded design that needed to be structurally rigid in some areas whilst remaining soft and safe for chewing in others – all while meeting stringent FDA material approvals and passing rigorous choke hazard testing.

The product is now in full volume production and sold worldwide.

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// The problem & the solution

The Core Challenge & Solution

The Problem

Bringing a Safety-Critical Baby Product to Market

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Dual-Material Design: The product needed to combine a rigid structural core with soft chewable zones - requiring an overmoulding process that had to work consistently in volume production.

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Manufacturing Complexity: Achieving reliable bonding between two dissimilar materials in an overmoulding process at scale, without defects or delamination.

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Regulatory Compliance: All materials had to be FDA approved and free from harmful substances, with full documentation for market access.

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Safety Testing: The geometry had to be engineered to pass rigorous choke hazard standards, requiring careful optimisation of dimensions and form.

The Solution

Precision Overmoulding, Certified for Production

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Engineered an innovative overmoulding approach that achieved reliable dual-material construction at volume, with rigid core and soft chewable zones performing exactly as required.

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Selected FDA-approved material combinations that met all regulatory requirements whilst delivering the tactile and durability properties needed for a baby product.

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Optimised the geometry through iterative design to pass choke hazard and safety testing, giving the client a clear route to market.

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Supported the full transition from prototype to volume production. The product is now sold globally by Frolik+Co (frolikandco.com).

// Technical Highlights

Precision Engineering

Focus Engineering Action Result
Dual-Material Construction
Engineered overmoulding process for rigid/soft zones
Consistent, defect-free production parts
FDA Compliance
Specified approved material grades
Full regulatory clearance for baby product market
Choke Hazard Testing
Geometry optimised through iterative design
Passed all required safety standards
Production Transition
DFM-led design and supplier coordination
Full volume production, sold globally

// Value Delivered & Results

From Concept to Reliable Tool

For the Client

  • Delivered a certified, production-ready product that passed all safety and regulatory requirements, and successfully launched into the consumer market.

For the End User

  • A safe, FDA-compliant teether with a dual-material design that provides the right stiffness and softness exactly where a baby needs it.

Key Outcome

  • The product is now sold in volume worldwide by Frolik+Co.
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Client Feedback:

"CMD were fantastic to work with. My brief had a wide scope: I needed a professional to analyse the functionality of my technically-difficult injection overmoulded product and optimise the design. I needed this person to be an industry expert to help me identify the best manufacturer for my product in the Far East, and once selected, I needed this person to communicate flawlessly with the chosen manufacturer to explain technical aspects of manufacture, as well as reviewing the supplier's DFM and tooling design.

Core Mech went above and beyond in all aspects of the job. They identified issues with the design that I had not foreseen, rebuilt the design from scratch to ensure no aspect was overlooked, and provided solutions immediately to challenges he found. After some explaining about the end use of the product, they were able to offer ways to optimise the product further than I had thought. Their evaluations of potential manufacturers was thorough and his interaction with the chosen manufacturer was in depth, clear and punctual.

I knew early on that my product was in safe hands and very quickly it felt as if CMD were part of our team. I would not hesitate to hire them again for any help I needed."