Official LWJ Software Page

Find, inspect and reuse 3D CAD data.

LWJ provides Windows software for STEP, IGES and STL workflows. Use GeomCatalog to organize and search 3D CAD files, then open selected models in StepGeomChecker for detailed inspection, measurement and manufacturing review.

STEP / STPIGES / IGSSTL3D CAD Viewer3D MeasurementThumbnail Catalog

Workflow

The pages are written for English search intent instead of literal translation. The content focuses on Windows, STEP/IGES/STL, practical inspection and CAD-data reuse.

Find

Register CAD data in GeomCatalog, browse thumbnails and narrow files by metadata, tags or comments.

Inspect

Open the selected model in StepGeomChecker to check geometry, sections, dimensions and mass properties.

Use

Share review results, prepare quotation checks and confirm geometry before manufacturing.

Software

Both tools target manufacturing workflows where STEP, IGES and STL files need to be found, reviewed and communicated quickly.

Free Software

StepGeomChecker

A free Windows viewer and measurement tool for STEP, STP, IGES, IGS and STL files. Use it for geometry review, section checks, dimension measurement, mass properties and manufacturing inspection.

  • STEP / IGES / STL viewing and measurement
  • Normal, counterbore and countersink hole checks for STEP / IGES
  • CSV export, result lists and 3D view linkage
Trial / Current Public Build

GeomCatalog

A Windows 3D CAD data catalog for organizing and searching STEP, STP, IGES, IGS and STL files with thumbnails. It is intended as a practical entry point for CAD data management and reuse.

  • Thumbnail-based file browsing
  • Tags, comments and metadata editing
  • StepGeomChecker integration for detailed review

Recommended pairing

Use GeomCatalog as the front-end catalog and StepGeomChecker as the inspection tool. This separates file discovery from technical model review.