How to Prepare CAD Files for a CNC Machining Quote

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How to Prepare CAD Files for a CNC Machining Quote

Quoting Guide

A clear RFQ package helps Sendot Technology review manufacturability faster and respond with a more accurate quotation. The more complete your technical information is, the easier it is to check material, tolerance, finish and production requirements.

What to Include in a CNC RFQ

  • 3D CAD files such as STEP, STP, IGS or X_T for geometry review.
  • 2D drawings in PDF format when critical dimensions, threads, fits or GD&T requirements are involved.
  • Material grade, surface finish, quantity, target lead time and any inspection requirements.
  • Application notes if the part has sealing, assembly, appearance or functional performance requirements.

File Preparation Tips

  • Use one file per part number when possible, and keep revision names clear.
  • Mark critical dimensions on drawings instead of relying only on model geometry.
  • Separate prototype quantities from production quantities if you need both price levels.
  • Tell us which surfaces are cosmetic, threaded, sealing or inspection-critical.

How Sendot Reviews Your Files

Our engineering team checks manufacturability, machining access, tolerance risk, material availability and finishing compatibility. When something may affect cost or lead time, we will suggest a practical adjustment before production.

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