Function Syntax: ExpUCS / ImpUCS / ExpImpUCS Version: 1.1 Date: 20.06.2026 6:38:51PM https://forums.augi.com/showthread.php?94673-Is-any-method-to-export-ucs Description 🧭 ExpImpUCS is an AutoCAD and Civil 3D AutoLISP utility for exporting and importing named UCS definitions through a custom DCL dialog. 📤 The main purpose is to make named UCS transfer faster, safer, and easier across drawings, project folders, Lageplan setups, and repeated CAD production environments. Function Syntax 🚀 Main dialog command: ExpImpUCS 📤 Direct export command: ExpUCS 📥 Direct import command: ImpUCS SEO Optimized Overview 🧭 This AutoCAD UCS import and export tool helps users manage named User Coordinate Systems in Civil 3D and AutoCAD drawings. 📤 In export mode, the routine scans the active drawing UCS table and writes all named UCS definitions to a portable .ucs file. 📥 In import mode, the routine reads a UCS file line by line and creates or updates named UCS definitions in the active drawing. 📌 Each exported row stores the UCS name, origin point, X-axis point, and Y-axis point using the format Name;P1;P2;P3. 🧠 The updated importer uses COM-based UserCoordinateSystems logic to avoid command-line UCS import freezes and improve reliability. Primary Workflow 1️⃣ Run ExpImpUCS in the AutoCAD command line. 2️⃣ Choose Export UCS or Import UCS in the dialog. 3️⃣ Select a predefined UCS folder or use the automatic folder fallback logic. 4️⃣ Export named UCS definitions to a .ucs file or import them from an existing file. 5️⃣ Use the help dialog to copy instructions, copy paths, open Explorer, open Notepad++, or reload the LISP file. Functionalities 📤 Export named UCS definitions - writes all named UCS records from the active drawing to a reusable UCS text file. 📥 Import named UCS definitions - reads external UCS files and rebuilds coordinate systems in the current drawing. 🧭 Portable coordinate format - stores UCS name, origin, X-axis point, and Y-axis point as semicolon-separated data. 🔄 Create or update UCS records - adds missing UCS definitions or updates existing names through the AutoCAD UserCoordinateSystems collection. 🧮 Vector validation - checks imported point data, normalizes vectors, and skips invalid UCS definitions. 🗂️ Predefined project folders - supports fast access to project-specific UCS_Lageplan folders. 🔍 OneDrive folder discovery - checks OneDrive environment variables, registry paths, and user profile OneDrive folders. 🧰 Dialog-based workflow - provides radio buttons, predefined folder list, Explorer, Notepad++, Reload, and Help buttons. 📋 Clipboard support - copies help text, selected help rows, and folder paths using cmd | clip. 🔤 Unicode toggle - lets the user switch help copy output between Unicode and ASCII-compatible text. 🧹 Safe import cleanup - skips comments, empty rows, malformed records, invalid coordinates, and unusable vectors. Key Commands and Helper Functions 🚀 C:ExpImpUCS - opens the main UCS import and export dialog. 📤 C:ExpUCS - exports all named UCS definitions to a selected .ucs file. 📥 C:ImpUCS - imports UCS definitions from a .ucs file and creates or updates UCS records. 🧩 EI-write-dcl - generates the DCL interface at runtime. 🧩 EI-build-predefs - builds the predefined folder list for UCS_Lageplan locations. 🧩 EI-preferred-startdir - resolves the best folder for export and import file dialogs. 🧩 _ucs-add-or-update - writes UCS definitions through the COM UserCoordinateSystems collection. Practical Result ✅ The final result is a faster UCS management workflow for AutoCAD and Civil 3D users who need to transfer named coordinate systems between drawings. 🎯 ExpImpUCS improves coordinate setup consistency, reduces repetitive UCS recreation, supports Lageplan folders, and helps CAD teams standardize drawing orientation workflows. Important Notes ⚠️ The script includes fixed support paths and project-specific predefined folder labels that may need to be adapted before deployment on another workstation. ⚠️ The import file must contain valid semicolon-separated UCS records with valid 3D point coordinates. ⚠️ Existing UCS names can be updated in the active drawing, so testing on a backup drawing is recommended when importing large UCS lists. Tags 🏷️ AutoCAD, Civil 3D, AutoLISP, Visual LISP, UCS, Named UCS, UCS export, UCS import, Coordinate system, UserCoordinateSystems, CAD automation, DCL dialog, ObjectDBX, COM automation, OneDrive project folders, UCS_Lageplan, CAD productivity, Drawing setup, Coordinate management