Some users with perpetual licenses for 11.1 can request access to the legacy archive by opening a support ticket at support.topcon.com. Include proof of purchase or your license dongle ID.
Note: Topcon does not offer public direct downloads. Any website claiming "Topcon 3D-Office 11.1 free download full version" is fraudulent.
Topcon offers a free read-only viewer (no license required) for 3D-Office files. You cannot edit, export machine files, or perform takeoffs, but you can check designs and print reports. Download from my.topcon.com. topcon 3d-office 11.1 download
For those using legacy hardware alongside new boxes, v11.1 improved the connectivity suites for transferring data via USB and serial cables, ensuring that older Topcon boxes (like the X-30 or older GT series controllers) remain compatible with modern computers.
While Topcon regularly updates their software, version 11.1 is considered a significant "milestone" release because it addressed compatibility with newer AutoCAD formats and refined the user interface. Here are the highlights: Some users with perpetual licenses for 11
If you are upgrading from 3D-Office 10.x or 11.0, here’s what version 11.1 brings to the table:
The software introduced minor UI refinements, making it easier to manage layers, toggle between 2D and 3D views, and measure distances on the fly. Note: Topcon does not offer public direct downloads
3DOffice_11.1.2_Update.exe or similar, run it after the base install.Once you successfully install 3D-Office 11.1, keep it running smoothly: