SAT is the text representation of ACIS model data and SAB is the binary one. CADProps reads both in-house. The header millimetre factor is applied and units are marked assumed. Do not rename IGES or STEP files to .sat.
Open a SAT or SAB file
The ACIS viewer loads the original file, shows the reconstructed geometry and reports dimensions for readable bodies. Confirm the body count and one known size before you use area, volume or a download. Open a SAT file online lists the checks.
Empty or unreadable geometry is rejected. Standalone pattern records are not supported; ask for an unpatterned SAT or a STEP export.
STEP output and neighbouring formats
Choose STEP in Convert when the next system cannot read SAT. Exact STEP is offered when every face is reconstructed; otherwise the export is a mesh STEP built from triangles. The STEP file is a derivative: no ACIS feature history, and it should name the SAT revision it came from. SAT vs STEP and SAT vs IGES compare the alternatives.
Volume requires a valid closed solid. Mass requires your confirmed density. Surface area can exist for faces that do not enclose a solid.
Limits
Files that only wear a .sat name stay out of this workflow. External references are not fetched. See the format matrix and the ACIS measurement limits before you treat a shaded view as a manufacturing check.
Original article: CADProps · https://www.cadprops.com/acis/