More Details
This project focused on internal structural and functional components rather than cosmetic appearance. The client needed to validate whether multiple internal parts could assemble accurately and operate reliably before moving further in the development cycle.
The main uncertainty was not “can it be made,” but whether tolerance stack-up, installation accuracy, and functional durability would hold under real assembly conditions. We balanced speed and risk by combining CNC machining for high-precision structural parts with SLA printing for complex geometries and fast iteration.
This approach is especially suitable for appliance manufacturers and product teams at the engineering verification stage, where functional confidence matters more than surface aesthetics.
Key Features & Advantages
1️⃣Engineering-Driven Decision Making
Instead of trial-and-error, we identified which components required machining-level precision and which could use SLA to accelerate validation without compromising function.
2️⃣High-Accuracy Structural Fit
The outer housing frame prototypes required strict dimensional control. CNC machining was used to manage tight tolerances and reduce assembly deviation between mating components.
3️⃣Functional Reliability at Prototype Stage
The power switch mounting base required a balance between installation precision and durability. Material thickness and reinforcement were adjusted during prototyping to simulate real usage stress.
4️⃣Water-Related Risk Control
The drainage pump housing prototype focused on sealing integrity and water resistance. ABS material selection and process control helped avoid leakage and deformation issues common in early-stage builds.
5️⃣ Fast Validation Loop
By producing all related components together, assembly issues were identified early, reducing downstream redesign cost and shortening the validation cycle.
Technical Specifications
| Parameter | Value |
|---|---|
| Tolerance | ±0.05 mm (critical interfaces) |
| Surface Finish | As-machined / SLA standard finish |
| Assembly | Test-fit and functional assembly validation |
| Lead Time | 7–10 days |
| Process | CNC Machining + SLA 3D Printing |
| Material | ABS |
Application Scenarios
▶️Internal structure validation for household appliances
▶️Assembly accuracy and tolerance stack-up testing
▶️Functional verification of switches and pump housings
▶️Pre-EVT and pilot-stage appliance development
▶️Small-batch engineering builds for design freeze decisions
FAQs
Q1: Can these prototypes be used for functional testing?
Yes. Material and process selection were optimized specifically for functional and assembly validation.
Q2: Why combine CNC and SLA instead of using one process?
CNC ensures dimensional accuracy where required, while SLA accelerates complex geometry validation and reduces cost for non-critical tolerance areas.
Q3: Do you support small-batch builds after prototyping?
Yes. We support pilot runs and small-batch production with consistent process control.
Q4: How do you manage tight tolerance assembly issues?
Through upfront engineering review, controlled machining processes, and test-fit validation during prototyping.
Q5: Can you provide DFM feedback during this stage?
Yes. DFM input is integrated into our prototyping workflow to reduce later-stage risks.
Why Choose Us
We focus on engineering decisions first, not just part delivery. By emphasizing the importance of design and functionality early on, we ensure that your product meets the necessary requirements from the start.
By combining multiple processes in a controlled workflow, we help appliance product teams reduce uncertainty and validate critical functions early. This approach enables faster, more confident decision-making, eliminating unnecessary trial-and-error.
Production Process
- CNC Machining
- SLA and other 3D Printing processes
- Vacuum Casting
- Surface Finishing & CMF support
- Assembly & Functional Testing
- Dimensional and Quality Inspection
