Similar to TCAD

DraftSight

DWGdirect

FreeCAD
FreeCAD
GDL
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ICAD/SX

IJCAD

IntelliCAD
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Jw cad

LibreCAD
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MICRO CADAM

MicroStation
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MUTOH ReViPS

NaroCAD

OneSpace Designer

PTC Creo Parametric
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Revit
Autodesk Revit
Rhinoceros 3D
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Solid Edge
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SolidWorks
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SpaceClaim
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Sweet Home 3D
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TopSolid
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Unidraf

VariCAD
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Vectorworks
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WorkNC
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WorkXPlore 3D
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IRONCAD
IRONCAD