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  • Design for CNC machining.

    Trustbridge helps product developers consider machining requirements as they develop and refine their designs. We bring manufacturing knowledge into decisions about geometry, tool access, tolerances, materials, and the part’s intended use

Bring machining considerations into the design.

 CNC machining creates practical constraints around geometry, tool access, setups, and dimensional requirements. Our studio helps you consider these constraints during design and identify questions to resolve before moving toward production.

tight-tolerance CNC specs

Technical Specifications & Tolerances

Start with the part’s function, interfaces, and fit requirements. During design review, consider where tolerances are necessary and how geometry, tool access, and the intended machining approach may affect those requirements.


Feature 

Standard Spec 

Precision Spec 

Dimensional Tolerance 

±0.005" (0.127mm) 

±0.001" (0.025mm) 

Surface Finish 

As-Milled (125 Ra) 

Smoothed (32 Ra) / Polished (16 Ra) 

Max Part Size 

20" x 20" x 12" 

Custom Large Format Available 

Threads & Holes 

Standard UNC/Metric 

Helicoil Inserts / Custom Threads 


Material Capabilities for CNC

Material decisions should reflect the part’s purpose and intended machining approach. We help you identify the requirements to consider and the material questions that need further evaluation and works with :
    • Metals

      • Aluminum: 6061-T6, 7075-T6, 2024 (Best for aerospace & prototypes). 
      • Stainless Steel: 303, 304, 316, 17-4 PH (Corrosion resistant). 
      • Alloy Steel: 1018, 4140, A36 (High strength industrial parts). 
      • Engineering Plastics: Delrin (Acetal), PEEK, Nylon 6/6, Polycarbonate. 
      • Titanium: Grade 5 (Ti-6Al-4V) for medical/aerospace applications. 
    • Plastics

      • Acetal (Delrin)

      • Nylon

      • PEEK

      • PTFE (Teflon)

      • ABS, PVC, Polycarbonate

    • Others

      • Carbon-fiber-reinforced composites

      • G10, FR4

      • UHMW, HDPE


    Materials We Support in CNC Machining
    Technologies in Our CNC Network

    CNC Technologies & Equipment 

    The intended machining approach influences geometry, access, and setups. We help you consider these questions as the design develops.

      • 3-Axis Milling – Ideal for simple part geometries

      • 4-Axis and 5-Axis Milling – Complex geometries, tight tolerances, high-speed

      • CNC Turning / Lathe Work – For cylindrical parts and concentric operations

      • Mill-Turn Capabilities – Combined setups for high efficiency

      • Swiss Screw Machining – Ideal for small, high-precision parts

      • EDM (Electrical Discharge Machining) – For hard metals and intricate internal cuts


      Industries We Serve

      Tell us what the part needs to do, where it will operate, how it interfaces with other components, and what requirements must be met. These inputs help define the design work and the questions that require further evaluation.

      • Aerospace & Defense

      • Automotive & EV

      • Medical Devices & Dental

      • Industrial Equipment

      • Robotics & Automation

      • Consumer Electronics

      • Oil & Gas


      We understand the engineering and regulatory nuances unique to each industry.

      CNC machining network

      Frequently Asked Questions

      What files do you accept?

      We accept STEP, IGES, SLDPRT, STL, and DXF files, along with 2D drawings (PDF) for tolerances and finishes.


      What’s your standard turnaround time?

      Typically 3–5 business days for smaller orders, with expedited options available in major metro areas.  



      Can I request a custom surface finish?

      Yes — we support bead blasting, anodizing, powder coating, polishing, and more.


      Are my designs secure?

      Yes — Work is done under NDA by default.  All files shared via Trustbridge are encrypted. 



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