ODA File Converter
7.1#3 in 3d file converter softwareFree planFree planAndroidLinuxmacOSWindows
VisitIt suits people who need to convert batches of DWG or DXF files between versions, including through a command-line workflow. Non-members are limited to non-commercial use.
Spin 3D may suit people converting mesh models for printing, modding, design, or animation. It is also aimed at users who need batch conversion or model previews.