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How to convert KeyCreator (CADKEY,.prt,.ckd) to CINEMA-4D (.c4d)?

PolyTrans|CAD+DCC performs mathematically precise CAD, DCC/Animation, GIS and BIM 3D file conversions into all key downstream 3D packages and file formats. Okino software is used and trusted throughout the world by many tens of thousands of 3D professionals in mission & production critical environments, backed by respectable personal support directly from our core development team.

KeyCreator

KeyCreator is a non-parametric, non-history based, "direct" 2D/3D solid modeling CAD program. Originally known as CADKEY, it was among the first CAD programs with 3D capabilities for PCs. Besides solid modeling, KeyCreator is also capable of wire-frame and surface modeling, as well as drafting.

KeyCreator has good support for exporting to all of the major 3D file formats, including STEP, ACIS SAT, IGES, Parasolid, STEP and STL. STL is the least desireable format to use. Recommended formats for importing KeyCreator data into Okino software is ACIS SAT, IGES and Parasolid.

CINEMA-4D

CINEMA 4D (C4D) is a well known and respected 3D DCC/Animation software program by MAXON Computer of Germany. C4D came to take on a much larger market share in the 2010's decade (and beyond) once other animation packages waned or went out of business.

Okino has been MAXON's primary 3D conversion partner since 1998 and hence has very strong support for importing, exporting and converting C4D files without the need to have a local copy of C4D installed.

It should be noted that no software program can read or write 3ds Max (.max) or Maya (.ma) files, just as was the case with CINEMA 4D prior to release v12. Hence, as is little understood, the proper way to convert C4D files to/from 3ds Max is via the Okino PolyTrans-for-3dsMax system and to/from Maya via the Okino PolyTrans-for-3dsMaya system.

However, Okino's primary focus is to provide the main industry standard CAD file conversion support to C4D users.

STEP import converter's overview

More Info: PolyTrans-for-CINEMA 4D

CINEMA-4D export converter's overview