Category Archives: Composites

Multiple Files & Attribute Matching

Attribute management between files for a single project is critical. If attribute numbers do not match from a building file to a site file, or between multiple building files of a single project, the Hotlink Modules will not appear correct. Surfaces of a module may show incorrectly, or be missing, custom profile beams/columns/walls can become reassigned to a new shape, and composites can switch to a different width if not properly matched.

It is important to note, the attribute number is how attributes are assigned to elements. For example, if your building file has attribute #10 as a stone, but the site file has attribute #10 as a wood, the buildings file will show correctly as stone, but when the building is saved to a .mod and placed to the site, all stone will switch to wood. If attribute #10 doesn’t exist in the site file, the stone will show as a purple & black checkered pattern, indicating the surface is missing.

Attribute Matching

To prevent these errors we have introduced an Attributes file into our workflow for each multi-file project. All attributes (Fills, Line Types, Composites, Custom Profiles, and especially Surfaces) will be generated in this central Attributes teamwork file, then using the Attribute Manager will be matched to all other files for that project on the BIM Server. This does mean a little more management up front, and involves a couple extra steps in managing the project. But the results are a lot less headache on the back end when publishing BIMx, or linking Views from a Site File to the Layout Book of the Buildings File. This is especially critical where projects get so large they require multiple building files, or even multiple site files; which is becoming increasingly commonplace.

Please note, the use of a dedicated Attributes file is not an option or choice to be used (or not) by each team. This is the standard we are using to manage attributes between files at WWA, and a dedicated attribute file has been created in your BIM Server folder if your project program requires one. A little extra time to do this right will ensure we do not need to stop and do things over when our BIMx, PDF and DWG files don’t show correctly due to poor attribute management.

Please watch for an update to our BIM Manual for instructions on how to properly use the dedicated Attribute file.

Roof Wall Connections

I feel like I have written this all somewhere before, but it begs repeating. Roof wall connections can be tricky, and solid element operations are not always the answer. In this example, we have an eave bearing wall running perpendicular to the roof slope.

The original model was built using SEO’s. This created a section error, showing the ceiling finish running through the wall structure:

screen-shot-2016-11-29-at-10-50-26-am

Also, notice the selected wall is taller than it should be, running above the roof plan. This wall height should be modeled to stop at the highest intersection of the bottom of the roof core. Then the roof and wall, while both selected, can be cleaned up with the Merge function (Design > Connect > Merge, or Right Click > Connect > Merge).

screen-shot-2016-11-29-at-10-55-42-am

The result is a properly cleaned up section view!

Integrate a Trim Reveal Into Doors/Windows

On occasion you may want to pull the interior finish of a wall away from the trim/frame to show a reveal. In the past we have done this with a beam/column/morph SEO around each opening. Now, thanks to a strange glitch in a project, we can replicate a reveal integrated into the Cadimage door and window settings.

First, in the window/door settings, open up the “All Parameters…” drop down from the top of the Cadimage Window – Settings portion of the selection settings.Screen Shot 2016-04-13 at 10.52.18 AM

Next scroll down until you see a drop down for Composite Skins. You can adjust the offset from outside of frame (Wall Hole size), to the position of the composite skins finish.Screen Shot 2016-04-13 at 10.52.36 AM

Once the trim position and frame dimensions are correct, the result for this example is a trim that is flush with the interior face of wall finish, but with a 1/2″ reveal to the trim width.Screen Shot 2016-04-13 at 10.50.47 AM

A couple of things worth noting on this setting:

  • This is a uniform reveal for all sides/top/bottom of the window or door’s relationship to the wall that it is hosted in
  • This is not measured from the trim position, but from the wall hole, or outside edge of the main frame