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How to convert Navisworks (NWD,NWC,NWF) 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.

Navisworks

Autodesk Navisworks products deliver project review software for 3D coordination, 4D planning, photorealistic visualization, dynamic simulation, and accurate analysis. Create a whole-project model by integrating design and construction information, including complex building information modeling (BIM), Digital Prototyping (DP), and process plant data. With Autodesk Navisworks project review software, you can collaborate, coordinate, and communicate more effectively to reduce problems during design and construction.

Navisworks is a key and core product from which Okino customers often receive and/or coordinate their data files. At Okino we have spent the good part of 2 decades writing our DWF-3D importer specifically to import super-ultra-massive files from Navisworks datasets, such as oil & gas rigs, oil refineries, 3D plants, marine vessils, etc.

Note: you would ideally pre-center the model at the origin and pre-scale the model to be of a "sane size" within Navisworks before exporting the DWF-3D file for Okino software consumption. This will ensure that the model displays properly in your final destination 3D software.

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.

DWF import converter's overview

Maya export converter's overview