A client approached us with a request involving CNC machining POM to create a custom multi-cavity fixture for an electronic testing application. The design is intended to securely hold delicate electronic components during production. The part was specified to use black POM (Delrin/Acetal) for its excellent mechanical strength, low friction, and resistance to wear and chemical exposure, which are critical for repeated clamping cycles in a factory environment.

The design features three deep rectangular pockets machined into a solid block. In plastic machining, removing a large volume of material from one side often releases internal material stresses. This can cause the part to bow or warp, compromising the flatness of the bottom mounting surface. Additionally, POM requires sharp cutting parameters to avoid frictional heat, which can melt the surface or cause dimensional instability.

Thanks to our machining process optimized specifically for plastics like POM(Delrin), the finished POM components achieved a base flatness tolerance of within 0.1mm, while the pocket walls were machined to a smooth, burr-free finish. This precision ensured the parts fully met the client’s functional requirements for secure, damage-free component assembly.

Part type: Black POM Multi-Cavity Fixture

Material: Black POM (Delrin/Acetal)

Quantity: 25 pcs

Lead Time: 11 day

We provide custom CNC machining services for low-volume production and Rapid Prototyping for design verification.  Click Here to Upload Your CAD Files