Why convert EASM to STP?
STP is the three-letter extension spelling of STEP (ISO 10303); the two extensions are interchangeable. An EASM (eDrawings Assembly) is a publish-and-share format from SolidWorks that stores tessellated visual mesh for display rather than the boundary-representation solids .stp needs. Running such a file through any converter produces either an error or a broken STP shell.
How to convert EASM to STP
SolidWorks APP
Ask the sender to open the original .sldasm in SolidWorks and use File > Save As > STEP/STP; both extensions produce the same file and are accepted by all CAD tools.
Programs that convert EASM
About these formats
.EASM
eDrawings Assembly
An EASM file is an eDrawings Assembly - a lightweight, shareable snapshot of a multi-part 3D CAD assembly published from SolidWorks (Dassault Systemes). It is a viewing and review format,…
Open .EASM details →
.STP
STEP - Standard for the Exchange of Product Data (ISO 10303), .stp spelling
An STP file is a 3D CAD model - a part or assembly - stored in the ISO 10303 STEP format so it can move between different CAD programs. The fastest free options are FreeCAD, CAD Assistant,…
Open .STP details →Quality & what to watch
- Without B-rep solid data in the EASM there is nothing for a converter to extract - the file normally holds only a tessellated mesh for rendering.
- If the publisher enabled precise-geometry export, open the .easm in the free eDrawings Viewer and check File > Save As for any export options before concluding no path exists.
- STL (mesh-only, for 3D printing) is more likely to succeed than STP when the EASM does contain exportable geometry, because STL matches the tessellated data already in the file.
