Skip to content
Sendot Technology

How to Prepare CAD Files for a CNC Machining Quote

Sendot Engineering Team· Custom Manufacturing
How to Prepare CAD Files for a CNC Machining Quote
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.

Send an RFQ

Manufacturing next step

Apply this guidance to your part

Continue to the relevant service page for process scope and buyer inputs. If your design is ready, send the current files for engineering review and quotation.

Continue with the process or project stage most relevant to this topic:

+86 15818870852LUKE@sendottech.com+86 15818870852