No Data Lost. // IFC → STEP AP242 · With PMI
OffBIM converts IFC building models into manufacturing-ready STEP AP242 files — preserving hole geometry, tolerances, and assembly data that every other tool silently discards.
Supports IFC 2x3 and IFC 4.x
Extracts IFC opening elements and reconstructs them as analytically exact CYLINDRICAL_SURFACE entities in STEP AP242 — the geometry IfcConvert silently destroys.
Generates tolerance reports, assembly relationship reports, and BIM-to-manufacturing mapping files — the Manufacturing Information Requirements your project is missing.
MIR · JSON · CSVSelect any element from your model and export it individually as STP, STL, OBJ, or AP242. Because manufacturing happens one component at a time — not the whole building.
STP · STL · OBJ · AP242Analyses geometry complexity, extracts Bill of Materials, and classifies elements by manufacturing readiness — giving fabricators the data they need before a single cut is made.
BOM · Complexity · DXFOffBIM is the output of a PhD research programme validated by 27 construction industry professionals across six dimensions including relevance, effectiveness, and intention to adopt.