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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.
DWGsign - prove authorship of your AutoCAD drawings
New version of the add-on Revit Tools 2.0


Export 3D VRML scenes from AutoCAD and Inventor 2015
VRMLout More info
Save your floating licenses (NLS) consumed by inactive users - free unused licenses with
LogOff 2006 More info
Add .CIT raster format support to AutoCAD and Map and Civil 3D
CITin More info

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CAD Tips, Tricks, Discussion and Blocks

This site gets about 500.000 unique visits monthly. Autodesk 2016 products (builds). Tips for AutoCAD 2016, Revit 2016 and Inventor 2016.

HelpCAD Discussion Forum - 28,671 postings, 575,670 registered users

Discussion forum to Autodesk products - AutoCAD, LT, Inventor, Revit, Civil 3D, Map, etc.
Two attributes with the same value in a dyn. block Forum: AutoCAD yesterday 18:14
Assignment: Draw a 1" Drill Bit in 2D Model Space? Forum: AutoCAD 27.7.2015 18:59
XGP TOOLPALLETS Forum: AutoCAD 27.7.2015 16:09
Geometric drawing on Autocad Forum: AutoCAD 26.7.2015 14:00
Opening a .bak file Forum: AutoCAD 26.7.2015 13:55
Printing Problem Forum: AutoCAD 26.7.2015 13:51
Cosmetic Shop Forum: AutoCAD 25.7.2015 17:47
Circle at my drawings Forum: AutoCAD Civil 3D, Map 24.7.2015 20:36
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2,760 CAD Tips and Tricks - updated 27.7.2015 

Hundreds of tips and tricks for Autodesk and HP products
How to display any web page in Inventor?
How to switch language of the simulation software Autodesk CFD?
How to fix/repair large 3D mesh models?
FATAL ERROR when starting AutoCAD 2016 - Access Violation Reading 0x0018.
How to enter angles in survey units?
Autodesk Application Manager reports it has been retired.
Setting the bubble notification timeout in AutoCAD.
How to easily repeat last command in Revit?
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New CAD Blocks

216b_mini_pacarregadeira.dwg, 28.7.2015 23:20:23
216b mini ...
580n_case.dwg, 28.7.2015 23:09:47
580n case - DWG
3D_SPRING_BOLT_220mm_x_12mm.dwg, 28.7.2015 17:01:48
3D_FLYING_IRON_+_GRUMMET.dwg, 28.7.2015 11:42:21
3D_Opera_Pin_Hinge.dwg, 28.7.2015 11:39:50
3D Opera Pin ...
3D_Ring_Plate.dwg, 28.7.2015 11:37:33
3D Ring ...
3D_STAGE_WEIGHT.dwg, 28.7.2015 11:30:18
3D STAGE ...
3D_BUTTON_FIX_TYPE_2.dwg, 28.7.2015 11:04:50

Download CAD Files - 2,408 files - (7,976,928 downloads)

Hundreds of CAD files for download - utilities, patches, service packs and libraries
Autodesk Print Studio 1.1.0 Technical Preview - Spark-based 3D print tool (Win64)
Autodesk A360 Mobile 2.6.1 for Android - view and markup 2D/3D DWG, DWF, Revit, STEP, IGES and 100 …
AutoCAD 360 for Android, V3.1 (free DWG editor), now with 3D, GPS, ePrint, Design Feed
AutoCAD 360 Mobile 3.6.3 (WS) - free DWG editor for Apple iPad, iPhone, iPod (iOS 7+) - incl. 3D, …
Autodesk Fusion 360 R2 - cloud 2D/3D CAD/CAM, trial, Win64, EN/CN (V2.0.1557)
Old Inventor (2012) color palette for Inventor 2015+ - .AdskLib library (CS+ Helpdesk file)
Autodesk Revit LT 2016 Service Pack 2, 64-bit (SP2, build 16.0.490.0, 20150714_1515)
Autodesk Revit 2016 Service Pack 2, for any Revit 2016, except LT (SP2, build 16.0.490.0, 20150714_1515)
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