Skip to content
cadauthority.com logo
  • AutoCADExpand
    • Linetypes
    • AutoLISP Scripts
    • Drawing Templates
    • CAD Blocks
    • Dynamic Blocks
    • Hatch Patterns
    • Plot Styles
    • SHX Fonts
    • Tool Palettes
  • Revit & BIMExpand
    • Revit Families
    • Revit Project Templates
    • Dynamo Scripts
    • Revit Shared Parameters Files
  • EducationExpand
    • AutoCAD Commands List
    • Learn AutoCAD Fast
    • AutoCAD Tutorials
    • Beginner’s Guide to AutoLISP
    • AutoCAD for Mac
    • AutoCAD Guides Manuals
  • Management toolsExpand
    • CAD Project Estimation Calculators
    • Bill of Materials (BOM) Templates
    • Drawing Issue Register Template
    • CAD Standards Audit Checklist
    • BIM ROI Calculator
    • Hardware & Software Inventory Tracker
    • CAD Standards Manual Template
    • BIM Execution Plan (BEP) Template
    • Request for Information (RFI) Template
    • CAD Scope of Work (SOW) Template
  • 3D & MechanicalExpand
    • SolidWorks Parts & Assemblies
    • STEP & IGES CAD Files
    • CAD Macros & API Scripts
  • Automation
cadauthority.com logo

3D & Mechanical

  • 34 Free CAD Macros & API Scripts Download (AutoCAD, Revit, SolidWorks, Civil 3D)

    Read More 34 Free CAD Macros & API Scripts Download (AutoCAD, Revit, SolidWorks, Civil 3D)Continue

  • 70 Free SolidWorks Parts & Assemblies (SLDPRT & SLDASM) – Download High-Quality Parametric CAD Models

    Read More 70 Free SolidWorks Parts & Assemblies (SLDPRT & SLDASM) – Download High-Quality Parametric CAD ModelsContinue

  • 43 Free STEP & IGES CAD Files Download (.stp / .step / .igs / .iges) – Industrial, Mechanical & Engineering Models

    Read More 43 Free STEP & IGES CAD Files Download (.stp / .step / .igs / .iges) – Industrial, Mechanical & Engineering ModelsContinue

© 2026 - CADauthority.com

  • Career
  • Certification
  • Licensing & Installation
  • Troubleshooting
  • How to
  • Guides
  • Tools
  • HOME
  • ABOUT US
  • CONTACT
  • PRIVACY POLICY
  • TERMS OF SERVICE
  • Sitemap
  • AutoCAD
    • Linetypes
    • AutoLISP Scripts
    • Drawing Templates
    • CAD Blocks
    • Dynamic Blocks
    • Hatch Patterns
    • Plot Styles
    • SHX Fonts
    • Tool Palettes
  • Revit & BIM
    • Revit Families
    • Revit Project Templates
    • Dynamo Scripts
    • Revit Shared Parameters Files
  • Education
    • AutoCAD Commands List
    • Learn AutoCAD Fast
    • AutoCAD Tutorials
    • Beginner’s Guide to AutoLISP
    • AutoCAD for Mac
    • AutoCAD Guides Manuals
  • Management tools
    • CAD Project Estimation Calculators
    • Bill of Materials (BOM) Templates
    • Drawing Issue Register Template
    • CAD Standards Audit Checklist
    • BIM ROI Calculator
    • Hardware & Software Inventory Tracker
    • CAD Standards Manual Template
    • BIM Execution Plan (BEP) Template
    • Request for Information (RFI) Template
    • CAD Scope of Work (SOW) Template
  • 3D & Mechanical
    • SolidWorks Parts & Assemblies
    • STEP & IGES CAD Files
    • CAD Macros & API Scripts
  • Automation