A plastic prototype should answer a specific question
A machined plastic prototype can help check fit, assembly, clearances, enclosure layout or a feature that needs evaluation before a later build. The best route depends on the part, resin grade, quantity and whether the prototype must represent the final material or only its shape.
This page focuses on CNC-machined plastic prototypes. For the broader service overview, see CNC 신속 프로토타이핑; for engineering choices about low-volume runs, read 소량 CNC 생산 계획.
Match the material to the test
Name the commercial resin and grade where known. Different plastics can behave differently in stiffness, impact, temperature, chemical exposure, friction and moisture. A prototype made from a substitute may be useful for a fit check but may not predict performance in the production resin. If the material is not yet chosen, state the operating conditions and the question the prototype must answer.
What to include in a prototype request
- CAD file and drawing revision, including any model-versus-drawing priority.
- Resin grade, color or condition, if specified.
- Quantity and which features must be checked during assembly or testing.
- Critical dimensions, surface requirements and any areas that may be changed.
- Whether the part is for visual review, fit validation or functional evaluation.
Thin walls, deep pockets, small internal radii and unsupported features can affect machinability. Flag these areas on the drawing instead of assuming that a prototype process will preserve every feature exactly as modeled. We review the actual geometry before confirming the scope.
Keep prototype and production requirements distinct
A prototype is not automatically production-qualified. If a later order will use another resin, process or finish, list those differences now. We provide custom machined parts; material equivalence, test results and production approval must be confirmed for the specific project.
For a quotation, send the current model, quantity, material and acceptance needs. We can then review what the prototype should demonstrate and which details need confirmation.