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How to convert KeyCreator (CADKEY,.prt,.ckd) to Maya (.ma,.mb)?

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.

Maya

Maya is a well known and respected DCC/Animation system which had originally been developed by Alias Research in Canada then purchased by Autodesk in 2006 after Alias went bankrupt.

As is very little understood, no program on this planet can read or write Maya ".ma" (ASCII) or ".mb" (binary) files because the full geometry modifier stack of the Maya software, and its various plugin modules, are needed in order to properly evaluate the file before it can be rendered. This is what forced Okino to write its well known PolyTrans-for-Maya system, which allows for all Okino 3D converters to run within Maya itself. For example, if you want to convert to/from CINEMA 4D (.c4d files) then you would do so entirely inside of Maya.

Due to multi-decades history, Maya users are notorious for using the OBJ file format to convert files to/from other software packages just as 3ds Max users wrongly use the 1985-era .3ds file format. OBJ is an "okay" file format but there are much better or more preferred methods to convert the data.

STEP import converter's overview

Maya export converter's overview