Revit As-Built Models?

I was reading a friend's blog post (bim)x: not doing so bad, looking for information on BIM As-built models. We are seeing requests for as-Built models on our projects. For non-IPD projects, the unresolved question is ‘what is the best arrangement for the creation of an as-built model?’ Should the Architect(the original MEA) do it? The Contractor? In the article Andy sees the as-built model as a possibility in the distant future. The article is from 2006 and we are in the not-to-distant future. This reality is forming now but questions remain. The important considerations with as-built BIMs as I see it are as follows:

1. Indemnification
   
2. What’s it going to be used for?
   
3. The Level of Detail required of the as-builts(does it include every stud,hanger, fixture, etc.)
   
4. Accuracy(Are elements required to be modeled within some measured tolerance?)
   
5. How does the party responsible for producing the as-built model acquire the information of the constructed elements?
   
6. Is the as-built simply a modeled record of the field-sketches and change-orders done by the Architect?
   
7. Is it a joint effort between Architect and Contractor and how do they work together?
   
8. Is the as-built an in-the-field monitored & modified BIM?
   
9. What does this cost the responsible party - a full-time Reviteer?
   
10. Does the as-built require product-specific data(light-bulb type & wattage, and motor model#'s url's and specs)?
    
11. If it's a Contractor-produced/modified model, does the construction phasing remain in the model or does it get scrubbed out(and what does this cost us)?
     
12. Response time(how quickly is the model updated)?
    
13. What else?

These questions are a matter of project-specific requirements and client-contractor-architect relationships. These aren’t all the questions just one’s that come to mind. If you have more, or experience in as-builts, your comments are appreciated.

Cheers,

Craig Barbieri

You, an iRevit contributor

Clearly, being an international Revit-man of mystery doesn't leave much time for providing you with Revit recipes for greatness or otherwise. It makes sense to this humble institution to search for additional blog contributors. If you are interested in contributing and helping other Reviteers with tips, tricks, fun facts, and the like, then contact me. Compensation is an astounding amount of personal growth and maybe even a sense of accomplishment, which is priceless.

ACADIA 09 and Grasshopper to Revit

Chicago, October 21st, 2009

The ACADIA conference begins tomorrow. The advanced digital design tool workshops preceding the conference end today. Several of the workshops were cancelled including the ones I had registered for but a colleague of mine participated in the Rhino Grasshopper workshop which I am now regretting not signing up for as the results were impressive. Rhino plays nice with Revit. Grasshopper is a plugin if you weren’t aware and it has matured a bit since last year’s ACADIA. It is similar to Generative Components in many ways but the interface is far more useable and the community that is forming behind it is can’t be compared. 

KlingStubbins will be using Rhino as a result of this workshop and incorporating it into the Revit workflow in our offices where possible. The link between Rhino and Revit remains critical in Architectural design firms as Revit is the BIM platform of choice by up to 98% of firms in various adoption statistics. As always and with any application, there are certain limitations and/or best practices when interfacing another application with Revit and it is never as simple as one would hope. That being said, the flexibility of Rhino allows for a pretty tight fit in my opinion. I haven’t mentioned the Concept design environment in Revit yet. It is a good tool and I look forward to the release and update of Revit 2011 (or the subscription pack this year) where it may be enhanced. Much of what you can do in Grasshopper can be achieved in Revit CDE but the interface of the former allows for a much more efficient workflow for design. Will we see slide controls for parameters in Revit? Time will tell.

Cheers,

Craig Barbieri

Hatching Revit Patterns for Filled Regions

Anxiously anticipating the opening of registration for Autodesk University fills the air with an excitement and flurry of optimism, wouldn’t you agree? In that spirit, here’s a helpful tip for all those who aren’t completely satisfied with the patterns available in Revit out of the box or often find yourselves looking for something particular in a pattern. 

Above is a diagram of how to decode a pattern file (.pat) and even create your own with only a text editor like Notepad.exe, and a little verve. Now I can’t claim credit for this diagram and if I knew where or who it originated from I would happily credit the creative craftsman. Recently I was looking on AUGI for this diagram which I originally found there many years ago when I had come across the need for an unusual pattern. I did not find the original post which inspired me to search the great iRevit Archives and did happen across the file in my trunk of Revit nick-nacks and here it is.

If you can follow it, and don’t feel bad if you have trouble with it as many do, you can create your own patterns for Revit.

It basically follows some simple rules.

1. Use the Inch and Degree as the units of measure
2. The * in the first line is where you’ll put the pattern name
3. The ;%TYPE=MODEL or alternatively ;%TYPE=DRAFTING informs Revit whether it is a Model or drafting pattern
4. Then just do the numbers in sequence, beginning at 0,0

Here’s an example of the contents of a pattern I made that is
72” x 24” panels staggered by 24”:

 

*Panel-Stagger-72x24,Pattern-Staggered-72x24in
;%TYPE=MODEL

0,0,0,0,24

90,0,0,0,72,24,-24

90,24,24,0,72,24,-24

 

And this pattern materializes like so:

 

Once you have created your string of numbers to describe your pattern in a text file, you then save your pattern with the .pat extension instead of the .txt extension. You may have to switch the “Save as type” option in the save dialog to “*.* All Files”

Loading this pattern is a matter of clicking the Manage tab, then the Settings button and selecting Fill Patterns then proceeding by selecting the type of pattern you want [Model/Drafting] and clicking New. The dialog that pops up allows you to create simple patterns but elaborate patterns require you to click the Custom button and Import the .pat file you created.

The Preview window is somewhat useless for large patterns as they don’t fit and the window is not resizable, but no matter. Your pattern is sure to look splendid. It is worth noting that now is the only opportunity you will have to change the scale of the pattern you create without re-importing the pattern file. The Import Scale will be grayed out after you click OK.

And that’s that.

Cheers,

Craig Barbieri

Stuff you’ve seen here

I am very excited to tell you that stuff you’ve seen here in this blog has been immortalized in the greatest known library in our universe, the Library of Congress in the USA. The book I refer to is Introducing Revit Architecture 2010: BIM for Beginners and although I did not write it, you’ll find one of my images on the cover! Written by Tatjana Dzambazova, Eddy Krygiel, and Greg Demchak, the book provides a thorough introduction to Revit and BIM and includes Revit’s capabilities, smart workflows, best practices, secrets, and tips among many other things. It is a very well-rounded book for those of you who are beginning to use Revit, and the book will benefit even those who have been using Revit for a while. In the center is a color section showing some inspiring work from folks from around the world. Some of my colleagues at KlingStubbins have the pleasure of showing their Revit design board for an Ops Center in Equador, in the soft gooey color center of the book. You’ll also see the Design slam ‘08 images from below printed in high fidelity.

Another book by the same three authors takes a more in-depth look at Revit and attempts to get the reader to a “Revit Master”  level of expertise. Mastering Revit Architecture 2010 is a very good resource for both beginners and experienced Reviteers. The book takes a clear look at the new Concept Design tool and workflows that…work. Something of a Revit Bible, MRA2010 is a valuable tool for the new era of Architecture and BIM and IPD that we are a part of.

If you are starting to learn Revit, I highly recommend these books. Naturally I am a little biased because my work is on the cover of the first but in all honesty I would have loved to have these two books when I started to learn Revit many years ago.

Cheers,

Craig Barbieri

P.S. It' has been a while since I last posted and if you like excuses, it’s because of a thorough commitment to my firm’s, KlingStubbins’ successful and final migration to Revit in Architecture, Structure, and MEP at the end of this year.  I have also been distracted by my wife and her business which is launching a new line of fabrics with her patterns very soon.