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Wednesday, March 18, 2009

Revit Workflow - Another New Revit Blog

Here's another Revit blog I just found


I recently had an article I wrote published in AUGI World magazine which has now went Green and is only available in digital format. I encourage you to read all of the articles in the magazine. It can be found at the below link.

AUGI World January/February 2009

Here is what I had to say. I hope you enjoy!

Redefine your Collaboration Workflow



By now I am guessing that most of you are already using Revit ® Structure to produce your design documentation, and, if you aren't using it, more than likely you are at least considering it. If you aren't looking at it, what are you waiting for? The use of Revit for any discipline definitely changes the workflow for you. If the workflow is not changing, then you were doing it way different than the way I was doing it! How different this workflow becomes depends a little bit on how much you are willing to change how you have been doing things in the past with other 2D CAD applications. Let’s take a second and reminisce about what I now call the “Old School” 2D days of CAD.
Old school CAD
As structural professionals, we would always receive what everybody said was this perfectly good CAD file from the architect. This file contained everything we needed to produce our structural documentation, we were told. The thinking went something like this: “They already have the grids laid out. Let’s just trace over them, or better yet, let’s just copy/paste them into our file, or much better yet, let’s just save their file as a new file, delete information that is not needed, and make it our structural file.” In return, the CAD manager would say, “Absolutely Not! We are going to verify every single line, dimension, text, and draw our own information in our file.” Why was this done? Because over time we began to lose faith in the accuracy of the drawings we were receiving. Structurally, we wanted precision set to 1/256" and “they” wanted it set to 1/16" or sometimes even 1/8". Other programs were used to produce napkin sketches of the building during schematic design and those sketches were being pulled into CAD. Sometimes the sketches were turned into nice numbers that were easy to work with and other times it looked like they were just left as sketches. The bottom line is we could not trust the CAD files to enable us to produce an accurate set of drawings that would allow other parties, such as fabricators, to use downstream. Using Revit on a project changes all of that; at least it needs to in order for the whole process to work.

The workflow needs to change
What needs to change? First, everybody needs to start producing accurate models that we all can trust. This means that those working on the project are going to have to step up their game a bit and go that extra mile to make things correct. Without this accuracy in the Revit models you are sharing, you will have little chance of relying on someone else’s model. Second, we need to start communicating again. No more of the architect moving an elevator shaft over 6" so he or she can maintain a certain corridor width and not tell structural it was done. Drawings get issued, it gets built from the structural drawings, and the elevator shaft is constructed in the wrong location. There can be no more of the engineer changing a beam depth size and not telling mechanical. The field guy is installing some duct work and finds out that his duct work does not clear the bottom of the beam. Dropping it would lower the ceiling height. Who wins? I could go on and on with scenarios from all sides of the design team, but right now I would like to talk about how Revit can eliminate this. Using Revit to model your projects and to produce construction documents is a chance to regroup with everyone and change the way you have been doing things in the past. I know that some of you who have been doing this correctly, but I also know that there are others using the undesirable methods described above. So let’s discuss the workflow that can get you started in a new direction.

3 comments:

co.creations March 18, 2009 at 7:50 AM  

thanks for keeping us update...continue the good work!

Jill March 19, 2009 at 12:21 AM  

Greeting.
I think Microsoft Office SharePoint Server 2007 is something you definitely want to look at. We specialise in this. There is more information on this at nSynergy.com or please mail to info@nsynergy.com.

Anonymous,  June 23, 2009 at 8:07 PM  

Don't waste you time with sharepoint. Its a costly under-performing and over-complicated version of existing open source products. Read the 'real' reviews, if you want anything more than out-of-the-box implementation expenses will kill sharepoint. That being said all offices -should be- running an EDM platform.

-Another BIM/Cadmin

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