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CAD Ads portal is a web service by CAD Studio Inc. (former Xanadu; Autodesk Platinum Partner based in the Czech Republic) featuring thousands of free CAD tips, utilities, 2D/3D blocks, videos, glossaries and discussions.
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Publish interactive 3D PDF models from AutoCAD, Inventor or Revit with Share3D More info
Use Google Earth images in your AutoCAD projects with the Plex.Earth Tools More info
Export 3D VRML scenes from AutoCAD and Inventor 2015
VRMLout More info

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CAD Tips, Tricks, Discussion and Blocks

This site gets about 500.000 unique visits monthly. CAD block library with >10.000 blocks. Tips for AutoCAD 2015, Revit 2015 and Inventor 2015.

HelpCAD Discussion Forum - 27,251 postings, 524,304 registered users

Discussion forum to Autodesk products - AutoCAD, LT, Inventor, Revit, Civil 3D, Map, etc.
Block: prevent, REA , change; add +- based on UCS Forum: AutoCAD today 0:04
2015 dimensions Forum: AutoCAD yesterday 19:52
mouse problems Forum: AutoCAD yesterday 19:30
Duplicates Forum: AutoCAD yesterday 11:37
AutoCAD 2009 Problem Forum: AutoCAD yesterday 11:35
Hatch same as background color Forum: AutoCAD 17.12.2014 20:18
isometrics pipe fittings Forum: AutoCAD 17.12.2014 15:22
Besides HERE, a source of Free Inventor Blocks Forum: Inventor 17.12.2014 14:22
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2,690 CAD Tips and Tricks - updated 15.12.2014 

Hundreds of tips and tricks for Autodesk and HP products
Physical units conversion tool in an AutoCAD palette.
Dimensioning a curve length or distance between two points on a curve.
Changed behavior of the Edit text command in AutoCAD 2015.
How to convert a line-based map to closed polygons (lots)?
Some Map commands not running in Civil 3D (cannot initialize dialog box, …
Cannot connect to WMS data source in Civil3D 2015.
How to export a DXF file with punch points from an unfold?
iLogic tip: returning a value on the True and False conditions.
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New CAD Blocks

Octahedron-truncated.dwg, 17.12.2014 15:05:09
Octahedron-t ...
Geodesic-Icosahedron.dwg, 17.12.2014 15:01:05
Geodesic-Ico ...
CVP_v_1.01.rfa, 17.12.2014 8:53:37
Velux_CVP_v_ ...
GGL_v_1.01.rfa, 17.12.2014 8:51:28
Velux_GGL_v_ ...
GGU_v_1.01.rfa, 17.12.2014 8:50:00
Velux_GGU_v_ ...
S4R_Barcol-Air_Terminals_VFTO1O4.rfa, 17.12.2014 8:44:47
S4R_Barcol-A ...
Chair_Seat_Fixed.rfa, 17.12.2014 8:39:04
Chair_Seat_F ...
Lighting-Surface_Mount-Delray_Lighting-Aspe.rfa, 17.12.2014 8:37:28
Lighting-Sur ...

Download CAD Files - 2,263 files - (7,401,613 downloads)

Hundreds of CAD files for download - utilities, patches, service packs and libraries
Autodesk 3ds Max Design 2015 Service Pack 3
Autodesk 3ds Max 2015 Service Pack 3
Autodesk AutoCAD Civil 3D 2015 Productivity Pack 1, EN/DE/CZ... (subscription)
LogBook (V0.9, beta) - creates log file with all changes in a DWG drawing (VLX LISP for AutoCAD)
TraceCurve - creates traced points in given distances along a curve (VLX LISP for AutoCAD)
UnitsConversion - online physical units conversion palette in AutoCAD 2015/2014
DimCurve - dimension length of any 2D/3D curve (or distance on curve) in AutoCAD (VLX Lisp)
Autodesk Application Manager 4.0.69 - check CAD updates 2015+ (EN/DE/CZ....)
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