“Learn the map before you argue about which app is best.”
📐Gstarcademy · Knowledge Center
Knowledge base = foundations: terminology, vendors, software names, and how ideas connect—the “map.” Tutorials help you discover videos from the open web; use the tutorial library when you are ready to watch.
How to fix missing CAD fonts displaying as "???" question marks?
When text displays as "???", the drawing is referencing compiled SHX shape fonts (or Asian Bigfonts) that are not installed on your system. In DWG FastView, enable Automatic Cloud Font Retrieval in settings to auto-fetch missing fonts. In GstarCAD Pro, copy your company's proprietary .shx and TrueType font files into the Fonts directory, or specify gbcbig.shx / simplex.shx as fallback substitution styles.
Can I convert drawing schedule tables directly to Microsoft Excel?
Yes. Using the Table to Excel tool in DWG FastView or the EATTEXT (Attribute Extraction) command in GstarCAD Pro, simply frame-select the drawing table lines and text. The engine automatically parses rows, columns, and numerical cells and exports a clean, editable .xlsx spreadsheet with formulas.
How to view 3D SolidWorks, Revit, or CATIA files on mobile or web?
DWG FastView includes a cloud-powered 3D engine supporting 14+ formats: SolidWorks (.sldprt, .sldasm), Revit (.rvt 2025), CATIA, Rhino (.3dm), STEP, IGES, STL, and OBJ. Upload the file to FastView Cloud or open via mobile app to orbit, cut cross-sections, and measure dimensions without installing heavy CAD desktop software.
Will existing AutoCAD AutoLISP and Visual LISP routines run in GstarCAD?
Yes. GstarCAD provides native, binary-level AutoLISP compatibility. You can load your existing .lsp and .vlx files directly using the APPLOAD command and add them to the Startup Suite. No code rewriting or script re-compilation is necessary.
Why does drawing engine memory optimization (e.g. GstarCAD vs AutoCAD) matter?
Large architectural files and mechanical assemblies can consume massive computer memory (RAM). Optimized engines utilize sophisticated database memory sharing to handle thousands of blocks and external references (Xrefs) with extremely rapid loading speeds and zero drafting lag.
Visualize how complex CAD structures are interrelated. See the links connecting BIM databases, parametric constraint systems, drawing merges, and command palettes in an active D3 force-directed diagram!
📺 Curated Tutorials Discovery Teaser
Active Track
Starter Sequence: CAD Literacy in 14 Days
A structured learning roadmap aggregating YouTube, Coursera, and vendor help channels. Follow the curated outlines rather than endless search results.
Inspired by the Structured Literacy approach, Gstarcademy prioritizes "the map before the app." We extract core concepts—atomic units of knowledge that remain completely consistent even when software tools shift. Every glossary term, FAQ card, and node in the Concept Graph is a verified atomic unit designed to provide a permanent mental framework for CAD learners.
Author: Gstarcademy Editorial BoardReviewer: Gstarcademy Technical Review CommitteeLast reviewed:Editorial Process