AssemblyStep / Updated 2026-11-02

An exploded view from a STEP file, without a CAD licence

Exploded views are usually made inside the CAD that designed the part: an exploded-view configuration in SolidWorks, an animation in Fusion or Onshape. That needs a seat of that CAD and someone who knows it. If you only have the STEP file (from a supplier, a customer or a download), AssemblyStep makes the exploded drawings straight from it.

When this is the right tool

How the exploded view is built

Each part is moved out along the direction it is fitted from: the longest free direction around it, so a screw comes out along its axis and a cover lifts off its face. The parts of one step move together, so an exploded drawing shows exactly what that step adds. The overview page shows the whole product exploded with a numbered pin on the largest parts, matching the parts list.

Steps

  1. Open the STEP file in the workbench (drag and drop).
  2. Turn the model and look at the exploded view; the timeline at the bottom plays the assembly.
  3. Let the AI plan the order, or keep the automatic order (largest parts first).
  4. Export the exploded overview as part of the PDF, the A4 poster, or the animation.

Compared with doing it in CAD

AssemblyStepExploded view in CAD
Needsa browser and the STEP filea licence of that CAD and the native files
Step orderplanned by AI, editablemade by hand, step by step
Outputmanual PDF, poster, MP4 animationdrawing views; animation with extra work
Exact control of every offsetno: directions are automaticyes

For a production drawing with exact offsets and balloons tied to a BOM, use your CAD. For a clear manual or animation from a file you only have as STEP, this is much faster.

Questions

Does it work with a STEP file of a single part?

A single solid has nothing to explode. The workbench shows it in a moving section instead. Use an assembly STEP.

Can I export the exploded view as an image?

The A4 poster is one page with the exploded overview and the full parts list; the PDF pages can be saved as images by any PDF viewer.

1 free AI plan a day · your STEP file stays in your browser

Open the workbench

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