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How to convert STL (StereoLithography) to LightWave (.lws,.lwo)?

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.

STL

STL (StereoLithography) is one of the industry's oldest (and simplest) 3D file formats created back in 1987 for 3D Systems' first commercial 3D printer. It is widely used for rapid prototyping, 3D printing and CAM. Okino has provided one of the very first and still primary STL export conversion systems for close to 3 decades.

Please take note that there is no 3D file format which is much simpler than STL. It is not a high-end, high fidelity 3D conversion file format as many people have come to wrongly believe. Rather, STL defines just a raw triangulated polygon mesh with no smoothing information (vertex normals), no uv texture coordinates, no assembly hierarchy part naming or any material assignments. 3MF and VRML2 are often much better file formats for moving 3D datasets into downstream programs and/or 3D printers.

The Okino STL exporter WEB page provides good graphical tutorial about how to convert CAD file data into STL and also how to clean a 3D model which is 'almost water tight'.

LightWave

LightWave is a well known and respected DCC/Animation system which has been around since the early days of the Amiga. It continues to be developed by Newtek Inc.

Okino implemented the main system to read and write LightWave .lwo and .lws files as of 1993, with the peak demand for our LightWave converters being throughout the 1990s and into the early 2000s, after which other animation systems became more popular (3ds Max, Maya and Softimage).

Fortunately a copy of the LightWave software is not needed to convert to/from the .lws and .lwo formats (as otherwise is the defacto case for the 3ds Max and Maya animation systems). The general scene data is stored in the ASCII .lws scene file whereas the binary .lwo file contains the geometry and material information.

How to Convert CAD to STL

STL import converter's overview

LightWave export converter's overview