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Written by Tess Roberts
For all our CNC machined parts we produce, we have certain standards we ensure for our deburring and primary surface finishes which include smooth machining, bead blasting, brushing, polishing, and brushed and electropolished. These standards are listed below so you know what to expect when you order CNC machined parts from 3D Hubs.
For an overview of CNC machining finishes and their pros and cons, check out this article →
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Deburring comes as a standard for all parts machined through 3D Hubs regardless of the surface finish. Standard option:
Chamfer size: 0.25mm +/-0.125mm These additional options are available through our sales team as custom requests:
Deburring and keeping sharp edges
Deburring with rounded Edges
Deburring and breaking sharp edges to a different chamfer size
You can request these options in the ‘Additional Comments’ section when you build a quote.
Standards:
Ideal application: Smooth machining is best for precise parts where the surface roughness needs to be fine, but is not suitable for customer-facing products. For finished and/or customer-facing products, some kind of primary finish is needed, such as polishing, brushing, followed by a secondary finish, such as anodizing, plating, polishing, etc.
Standards:
Tolerance limitations:
Ideal application:
Bead blasting creates a satin, textured finish. It’s best for parts where you want to hide machine marks and fingerprint marks and avoid reflective surfaces. The textured surface can also help to increase grip.
Standards:
Brushing is mostly used for aesthetic purposes and can be used to cover up imperfections from machining for customer-facing parts.
Standards:
Brushed and electropolished creates a clean surface, best for parts that need to be smooth at a microscopic level.