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Tandem processes CAD files and other engineering documents so your team can view, annotate, and discuss designs without needing desktop software.

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Uploading files

Attach files to any node in your system architecture. Tandem supports:
  • CAD files — SolidWorks (.sldprt, .sldasm) and STEP (.stp, .step) files are processed for 3D viewing
  • Documents — PDFs, images, and other files are stored as artifacts
To upload, select a node and click Upload in the artifacts panel, or drag and drop files directly.
CAD files go through a processing pipeline after upload. You’ll see a progress indicator while the model is being converted for browser viewing.

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3D viewer

Processed CAD files render in an interactive 3D viewer powered by HOOPS Communicator. You can:
  • Rotate, zoom, and pan — Use mouse or touch controls to navigate
  • Select parts — Click components in the model to highlight them
  • Model tree — Browse the assembly hierarchy in a collapsible tree
  • Measurement tools — Measure distances and dimensions on the model
  • Cross-sections — Slice through the model to see internal geometry
  • Exploded views — Spread assembly components apart for inspection

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PDF drawings

PDF files and auto-generated 2D drawings are viewable directly in the browser. You can annotate drawings with markup tools — see Annotations for details.

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Bill of Materials

For assembly files, Tandem auto-generates a Bill of Materials (BOM) from the CAD structure. The BOM table shows:
  • Part names and quantities
  • Material assignments
  • Cost tracking
  • Supplier information
You can edit BOM fields directly in the table and export to CSV.

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Saved views

Save specific camera positions, visibility states, and markups as named views. Share saved views with your team so everyone can quickly jump to the same perspective.