What is a DAO and why does it matter to AEC?

-
Introduction Blockchain technology has revolutionized many industries worldwide, and the Architecture, Engineering, and Construction (AEC) industry is no exception. A significant innovation in this context is the DAO, which is a "Decentralized Autonomous Organization". A DAO is a blockchain-based organizational structure that operates decentralised, enabling transparent and collaborative decision-making and facilitating participatory governance. In this article, we'll explore what exactly a DAO is and why it's relevant and important to the AEC industry. What is a DAO? A DAO is an autonomous, organization-like entity that operates through smart contracts on a blockchain network. Unlike a traditional company, there is no hierarchical structure of power, nor the need for intermediaries such as managers or executives. Instead, decision-making is carried out collectively and transparently, through voting based on ownership of tokens or units of the DAO's native c...

AutoCAD: Troubleshooting corrupt DWG files

-
Issue: 
An AutoCAD DWG file cannot be opened and causes AutoCAD to show error messages or alerts, or to freeze or crash.   

Causes: 
Possible causes of file corruption 
  • Network (transmission errors, file locking, latent writing of data)
  • Storage media degradation (bad sectors on a hard drive)
  • Defective or failing RAM
  • Operating system issues
  • Power surges
  • 3rd - party applications running inside the Autodesk product
  • DWGs created or saved by non-Autodesk non-RealDWG products
  • AutoCAD terminated while saving DWG (less frequent)

Recommendation: Audit and purge before saving

Solution: 
If a file cannot be opened, the following steps can be taken: 
  • RECOVER command 
  • Recovers a selected drawing file
  • If successful, open and run AUDIT command (Evaluates drawing integrity and possibly more error correction)
  • Set system variable AUDITCTL=1 to create a report of audit results
  • RECOVERALL command (Recovers a selected drawing file)
  • Attached and nested xrefs are also opened, repaired, resaved, and closed
  • INSERT and EXPLODE
  • Start a new DWG with no template 
  • Run INSERT and selected the corrupted drawing
  • Check the “Explode” option
  • If DGN data was used: 
  • NETLOAD the AutoCAD® DGN Hotfix (DgnLsPurge.dll) and run DGNPURGE
  • The Hotfix can be downloaded from the Autodesk® Knowledge Network Support 


If a file can be opened but still shows signs of corruption, the following steps can be taken:
  • RECOVER and AUDIT
  • PURGE command
  • Copy and Paste into a new drawing
  • AECTOACAD (-EXPORTTOAUTOCAD) 
  • Exports to a pure AutoCAD file in selected drawing version
  • Strips potentially corrupt custom objects
  • WBLOCK command 
  • Set all layers ON, THAWED and UNLOCKED
  • WBLOCK all objects in the drawing to an external block file
  • INSERT the resulting file as block into a new drawing (check the “Explode” option or EXPLODE the block after inserting)
  • AUDIT and PURGE
  • DXFOUT/DXFIN 
  • DXFOUT to create a new .dxf file
  • Start new drawing and DXFIN to import the new .dxf file
  • Also try exporting as AutoCAD 12 DXF
  • XREF into a new drawing and BIND


Products: 
AutoCAD; AutoCAD Civil 3D; AutoCAD Map 3D; AutoCAD Raster Design; Infrastructure Modeler 
Versions: 2011; 2012; 2013; 2014 





This document contains content adapted from the Autodesk® Knowledge Network, available under Attribution-NonCommercial-No Derivative Works. Copyright © Autodesk, Inc.

Popular posts from this blog

How to Save AutoCAD Drawing as Read Only

-
Image
How to Save Auto-CAD  Drawing as Read Only – is quite a difficult way to answer. The only way to answer this question is by giving different options for the user to Save Auto-CAD Drawing as Read Only. Let’s see some of them below. Save Auto-CAD Drawing as Read Only Some of the different methods are listed below please choose which is appropriate in your case. Method 1 – Use Save As Auto-CAD Drawing Files as DXF (Drawing Interchange Format, or Drawing Exchange Format is a CAD data file format developed by Autodesk), by this method you actually prevent the user to make any changes to your drawing files. Making the Drawing as Read-Only Files Method 2 – Ideally you could right click on the drawing file icon (once saved), go to properties and tick read only. Ahh, well that doesn’t “lock” the drawing or anything. they can still edit it, do a Save As, or simply unchecked the Read Only option for the file once they have it. Method 3 – In case you are on a Network, you can ...
Read more

CAD Tip Of The Day: How to isolate objects and hide it.

-
Image
How to isolate objects and hide it. 1. Type the " isolateobjects " in the command line (without the quotes). Select the objects you want to isolate.  2. Another options select first the object you want to isolate. Right-click in the drawing area and select Isolate Objects. Only the selected objects are displayed. All other objects are hidden. 3. To redisplay hidden objects, right-click in the drawing area and select Isolate End Object Isolation. Its same process with hide object 4. Select the objects you want to hide.  5. Right-click in the drawing area and select Isolate Hide Objects.  6. The selected objects are hidden. (It’s like the command action of layoff) 7. To redisplay hidden objects, right-click in the drawing area and select Isolate End Object Isolation.  Try to save, close, and reopen your drawing, the object is still there the time you isolate or hide.  TIP: Before hiding or isolating objects, set OBJECTISOLATION...
Read more

Revit Tip: How to Slope Horizontal Steel Beam

-
Image
How to Slope Horizontal Steel Beam (with images) Issue: You have an existing beam that has a level as its work plane. You want to set its work plane to be a sloped reference plane, but only the reference planes or levels parallel to the beam are available when you edit the beam. Solution: To make the existing steel beam align with a sloped reference plane. Open an elevation or section view of the beam. Draw a reference plane parallel to the beam/slab using the Reference Plane tool on the Basics tab of the Design bar and name it by editing the reference plane properties. Select the beam. Click Edit Work Plane on the Options bar. Select Name and select the reference plane that you just created from the drop-down menu and then click OK. Draw a sloped reference plane using the Reference Plane tool and name it. Click Align to align the horizontal reference plane to the sloped reference plane. That's it. Bottom-line: After you made it, you ca...
Read more