Mechanical Design Services

Reverse Engineering CAD Services

Reverse-engineering CAD recreates useful geometry and documentation from a physical part or incomplete record so it can be reviewed, modified, fabricated, or replaced.

Service overview

What this service involves

Calicore can build a CAD model and drawing package from field measurements, photographs, hand sketches, scans, old PDFs, or an existing but unreliable model. The process begins by identifying interfaces, critical dimensions, functional features, material information, and the intended use of the new files.

The final model can support replacement-part fabrication, design modification, assembly documentation, maintenance, or future engineering work. Measured uncertainty and unverified internal features are identified instead of being presented as known geometry.

Step by step

How the process works

The exact scope is matched to the project, but a typical assignment follows these steps.

  1. 01

    Define the drawing purpose

    We confirm what must be modeled or documented and whether the files will be used for review, estimating, fabrication, assembly, installation, or maintenance.

  2. 02

    Collect the source information

    Work can begin from sketches, measurements, redlines, PDFs, legacy drawings, existing CAD files, or a written set of requirements.

  3. 03

    Model and review

    We build the parts and assemblies, issue review views, and resolve dimensions, interfaces, materials, and open decisions before final detailing.

  4. 04

    Prepare the drawing package

    Final files are organized for the agreed downstream use and can include native models, PDFs, production drawings, and revision records.

Review criteria

What a useful production drawing must communicate

The required level of detail depends on who will use the drawing and what they must make, assemble, install, or verify from it.

What you receive

Typical project deliverables

  • Parametric part or assembly model
  • Reference and interface dimensions
  • Production or replacement-part drawings
  • Assumption and measurement record

Common project needs

When this service is useful

  • Obsolete or undocumented parts
  • Equipment with missing drawings
  • Replacement components
  • Fabricators and maintenance teams

Frequently asked

Reverse Engineering CAD Services questions

Can you reverse-engineer a part without the original drawing?+

Often yes. Calicore can work from measurements, photographs, sketches, and interface information, but the accuracy and completeness of the final model depend on what can be observed or measured.

Can you infer hidden internal geometry?+

Only when it is supported by measurements, sectioning, inspection, or reliable records. Unknown features are identified as assumptions or information gaps.

Can the resulting model be used for fabrication?+

Yes, when the required dimensions, materials, tolerances, interfaces, and approvals have been established for the intended fabrication use.

Request a proposal

What to send us to begin

Send a short description of the work, any plans, specifications, or photographs you have, and tell us what you need the service to provide. Include a project location if it applies.

Request a proposal