3D CAD Models Community – PARTcommunity – 3D & 2D CAD Models 2 2 years B2b.partcommunity.com 0 The PARTcommunity CAD download portal is an online library for 2D & 3D CAD models of supplier- and standard parts for all CAD formats. PARTcommunity is a library for 2D & 3D CAD models of supplier and standard parts.