A Honscn se concentra em serviços profissionais de usinagem CNC desde 2003.
UK Wearable Technology Innovator × Honscn Precision CNC Machined POM Components for Smart Swimming Training Devices
Client & Project Overview
Our client is a UK-based innovative technology company specializing in smart wearable devices for swimming training. Their mission is to help swimmers track performance more accurately and solve the common problem of miscounted laps during training.
The company develops electronic swimming products that require small, precise mechanical components to interface smoothly with the electronic sensors and user controls.
Product Overview: Knurled POM Components for Swimming Devices
- Material: Black POM (polyoxymethylene)
- Application: Wearable swimming training devices
- Key Feature: Knurled surfaces for easy grip and smooth operation
- Surface Finish: Burr-free, polished knurling
- Special Function: Submersible push buttons with internal stepped bores for springs and seals
These components are designed for frequent handling and adjustment by swimmers. The knurled grip must be aesthetically pleasing, tactilely comfortable, and free from sharp edges or burrs that could interfere with usage. Additionally, the components function similarly to watch-style diving or swimming chronograph push buttons, incorporating internal steps and blind bores to house springs and waterproof seals.
Key Challenges
1. Concentricity and Thread Alignment
Challenge:
The parts include a threaded section topped with a knurled knob. High concentricity between the thread and the knurled portion is critical.
If the concentricity is off, the component tilts when screwed into the device casing, which could compromise water resistance and smooth operation during submersion.
Our Solution:
We optimized the CNC setup and tooling to ensure perfect coaxial alignment between the thread and knurled top. Precision fixturing and in-process measurement maintained concentricity within strict tolerances.
2. Internal Blind Holes and Stepped Features
Challenge:
Each component contains complex internal stepped bores, designed to hold springs and waterproof O-rings.
Machining these features accurately in small POM components is challenging due to tight tolerances and the risk of material deformation or burr formation.
Our Solution:
We programmed CNC toolpaths specifically for blind-step machining, with optimized feed rates and tool geometries to maintain dimensional accuracy while avoiding burrs. Each bore was inspected to ensure a perfect fit for springs and seals, guaranteeing functional reliability.
3. Consistent Surface Quality Across Production
Challenge:
Previous suppliers were unable to produce the knurled surfaces cleanly. Many components had rough edges, uneven knurling, and burrs, which affected both the look and tactile feel of the device.
Our Solution:
Using precision CNC machining and high-quality tooling, we created consistent, sharp knurling with smooth, burr-free edges. This ensured both visual appeal and reliable user experience.
4. Small-Scale Precision in POM
Challenge:
POM is a tough, wear-resistant plastic, but machining it to high tolerances without surface defects is difficult. The component must remain dimensionally consistent for proper fit in the electronic assembly.
Our Solution:
We optimized CNC feed rates, spindle speeds, and cutting tools specifically for POM. This process minimized heat build-up, reduced material stress, and ensured tight tolerance control across each batch.
5. Long-Term Production Consistency
Challenge:
The client needed a reliable supplier capable of maintaining consistent quality over multiple years. Previous attempts with several manufacturers failed to meet expectations.
Our Solution:
By standardizing tooling setups, inspection procedures, and production parameters, we established a repeatable manufacturing process that has consistently met the client’s high standards over several years.
Manufacturing Process
- CNC turning and milling for the main cylindrical structure
- Precision knurling with optimized tooling for burr-free surface
- Blind and stepped internal bore machining for spring and seal fit
- Dimensional inspection and fit verification
- Final polishing for smooth tactile surface
This process ensured every component not only functioned perfectly but also reflected the premium quality of the client’s wearable devices.
Project Results & Customer Feedback
The client has been extremely satisfied with the long-term collaboration:
- Consistent knurling: Each batch features smooth, uniform knurl patterns
- Burr-free surfaces: Enhances user comfort and device aesthetics
- Accurate internal features: Blind holes and stepped bores fit springs and O-rings perfectly
- Precise concentricity: Threaded and knurled portions align perfectly, maintaining water resistance
- Long-term satisfaction: The client has been using our parts successfully for several years
Customer Quote
Why Smart Device Manufacturers Choose Honscn
This project demonstrates our expertise in:
- Precision machining of engineering plastics
- High-quality knurling and surface finishing
- Complex internal bore and stepped feature machining
- Maintaining concentricity for functional reliability
- Long-term production consistency
We help technology innovators transform their component designs into reliable, high-quality products that enhance both performance and user experience.
Conclusion
In wearable technology and submersible devices, even small mechanical components like push buttons can greatly impact user experience, water resistance, and long-term reliability.
Honscn combines advanced CNC machining, material expertise, and process control to deliver components that meet the most demanding functional and aesthetic requirements.
For precision POM components for wearable and aquatic devices, our engineering and manufacturing team is ready to support your next project.