If you are still running a relatively small SSD (like 512gb), you might see that your C drive fills up pretty quickly while working on a large BIM 360 Design Revit cloud worksharing project. See below image, where the CollaborationCache folder is using almost 50gb of space on my machine:


While I realise that the SSD is the best place to have that data in terms of performance, if you don’t have the space available you may consider moving your CollaborationCache folder to a secondary, larger hard drive. I used a symbolic link to do this, with the script below:

if exist "%localappdata%\Autodesk\Revit\Autodesk Revit 2018\CollaborationCache" rename "%localappdata%\Autodesk\Revit\Autodesk Revit 2018\CollaborationCache" CollaborationCache.old
mklink /d "%localappdata%\Autodesk\Revit\Autodesk Revit 2018\CollaborationCache" E:\C4R
if not exist E:\C4R MD E:\C4R
robocopy /mir "%localappdata%\Autodesk\Revit\Autodesk Revit 2018\CollaborationCache.old" E:\C4R\


This creates a folder called C4R on your E drive, copies the CollaborationCache over, and sets up the symbolic link. To use it:

  1. Sync all Revit instances and shut down Revit completely
  2. Make a CMD from the code above and run it as Administrator (elevated privileges required for mklink )
  3. In Explorer, confirm you have the symlink and delete the .old folder :

  4. Start Revit 2018


Please use the script with care 🙂

You can also refer to my previous post where I did the same with the Tekla BIMsight cache folder.

It seems the AUGI forum data situation is still up in the air – will all that user generated content ever become available again?

In the meantime *some* of the AUGI data can be accessed using the Google Cache.  For instance, if you want to find the Google Cache of an old AUGI page:

  1. Open Google.
  2. Get the old address of the AUGI page ( for example http://forums.augi.com/showthread.php?t=71280&page=5 )
  3. Paste the address into Google and Search.
  4. When the result comes up, click on the ‘Cached’ link.  The actual link will look something like http://www.google.com.au/url?sa=t&source=web&cd=1&ved=0CCUQIDAA&url=http%3A%2F%2Fwebcache.googleusercontent.com%2Fsearch%3Fq%3Dcache%3A1yS0KRA-4woJ%3Aforums.augi.com%2Fshowthread.php%253Ft%253D71280%2Bgetlevel%2Brevit%26cd%3D1%26hl%3Den%26ct%3Dclnk%26gl%3Dau%26client%3Dfirefox-a&rct=j&q=getlevel%20revit&ei=AG4BTZStF8HqrAfPqv2QDw&usg=AFQjCNEMUW1ouZzNr6ZVj2py2M6ZanqXig&sig2=BcJo4z9C6M5iCTRATFY00A&cad=rja

This won’t last forever…