One of the most consistently “in-demand” job positions here in Australia at the moment is for Revit MEP Drafters.  Personally, as part of my coordination role on the new Royal Adelaide Hospital, I’m spending lots of time in and around Revit models that have originated with a huge range of MEP subcontractors – mechanical designers and consultants, plumbing, drainage, fire sprinklers, syphonic roof drainage, medical gas, pneumatic tube – the list literally does go on from there. Invariably, these models end up as NWCs that I use to federate and clash against one another.

Accordingly, it made a lot of sense for me to investigate and fully understand the features of the originating “flavour” of Revit – RMEP, otherwise known as Revit MEP. Accordingly, I have spent the past week checking out The Aubin Academy: Revit MEP 2014publication, authored (somewhat obviously) by Paul F Aubin, along with Darryl McClelland, Martin Schmid and Gregg Stanley

Paul Aubin is one of those guys that really needs no introduction, especially when it comes to Revit. Chances are that you have read something he wrote, watched a video he recorded, or seen him at AU or RTC. As the author had such established credentials, the question for me was “does this book fit my particular needs?”

Like many of you, I have spent a lot of time around Revit over the years. I have even done some basic modelling with the MEP tools in the suite version of Revit. In any case, I’m glad to report that this book strikes a nice balance between theory, explanation and step-by-step workflows. It covers broad aspects related to BIM management and office processes, but it also steps deep enough into the workings of the program to show you how to actually get work done in Revit MEP.

One of the great things about the book is the way that the information is segregated. Do you want to learn specifically about Mechanical modelling tools? Turn over to Chapter 5 – Mechanical Systems. Or perhaps you are more interested in pipework tools? Then try Chapter 6 – Piping Systems.

The beginning of the book shows great sensitivity to the actual project procurement process – how does MEP Revit modelling fit in with the overally Revit model development? You will likely start by receiving a model from the Architect for context – the book describes “best practice” methods of linking and interacting with this data. It also provides some useful insight into data segregation (the kind of information you should definitely file away for future use), like:

“As a guideline, projects up to about 150,000 square feet may reside in a single common MEP model…”

The book also considers the conceptual way that Revit considers and calculates various MEP related items. For example, it includes this illustration of the Darcy-Weisbach Equation as used by Revit:

This type of “conceptual background” is invaluable to me – it comes back to figuring out What Revit Wants. How is RMEP going to analyse and interpret the things that I am modelling? What project parameters are key to the systems analysis process? This book will help you get your head around all of those things, and it does so in readily understandable, easy-to-follow language and layout.

Along with specific workflows for MEP, it also includes great tips that apply to all users of Revit, like this:
“We are going to actually delete all the levels. As such, it is important that you select all levels at once as Revit will not otherwise allow you to delete a single remaining level.”

Notes relating specifically to BIM Managers are included in the context that makes them most useful, like:
“BIM Manager Note:
Revit MEP has added Plumbing as a separate discipline and in conjunction has created a new Plumbing Template. For more information on templates and how to create one for your company refer to Chapter 3. Existing projects will be upgraded on open to add the Plumbing Discipline to Project Browser.”

Analytical considerations beyond Revit are also described, such as:

“Avoid negative offsets of roofs as this might cause exporting errors through the gbXML tool.”

Finally, Paul and his team make sure that they include information that is useful on a day-to-day basis. Here are a couple of examples:

  • In lieu of deleting sizes it might be best to leave the sizes in the table and simply deselect the size in the “Used in Size Lists” and/or the “Used in Sizing” column.
  • Once you click Finish or Cancel in the Floating System Inspector panel the System Inspector Information tags will disappear. If you want a permanent tag to remain, you will have to build a custom tag Family for this purpose and attach it to the object.
  • NOTE: Currently, fittings and equipment cannot have a fill pattern applied to them
  • As you are placing your ductwork you can use the Justification Controls to keep your ductwork flat on top, flat on bottom, etc.

In this post, I have included just a small selection of the productivity- and knowledge-enhancing gems that you will find if you take the time to read The Aubin Academy: Revit MEP 2014.

To conclude, I would like to include this quote regarding the scope and intended audience of this book:
“If part of your job requires that you design building systems and produce construction documentation and engineering design drawings, then this book is intended for you. Specifically, this includes anyone in the Mechanical, Plumbing, Fire Protection, Electrical, and other building design engineering professionals.”

You can get it here:
http://paulaubin.com/books/the-aubin-academy-revit-mep-2014/

Dataset downloads:
Read Me

Dataset Download

Chapter 4 Dataset Update (Replace your copy of this file)

Content used in the book:
http://www.titus-hvac.com/main/software/index.aspx?prod=TerminalUnits

This problem and solution is surprisingly quite “undocumented”.  When you switch to Revit Server, the normal Worksharing Monitor for Revit will not work anymore.

However, you can become a part of Autodesk Project Bluestreak (also known as Activity Stream for Revit).  Basically, you join Bluestreak, install Bluestreak Desktop, and install Autodesk Revit Activity Stream.

Definitely worth a look if you are using Revit Server.

Heads-up:

The Revit Jedi: Workshare Monitoring Vs Bluestreak… the Smackdown!

Here’s how it works:

There’s not much of an interface for this one, you simply go to a sheet
and run the command.  It will then go into a selection mode asking you
to “Pick viewports in the desired order.”

Download Viewport Renumber 2013, 11.48 kB

Download Viewport Renumber 2014, 11.92 kB

Original post by Tim Logan:

Revit Viewport Renumber Tool | LMNts

There is a nice selection of AU2013 videos embedded into a recent post on Form Follows Performance, starting with:

AB2947: Applying Open Standards and Levels of Development (LOD) to Building Information Modeling (BIM)
Follow this link for details and materials download:
http://au.autodesk.com/au-online/classes-on-demand/class-catalog/2013/revit-for-architects/ab2947

Check out the full list at:
BIM & Performative Design Learning Classes from AU2013 Now available online | Form Follows Performance

I worked with a Structural Engineer recently who used to model Void Forms in his Structural Columns so that he could “cut” them into walls and other geometry.

However, this created a bit of an issue when the Structural model was linked into the Architectural – namely, orange voids would occasionally show up, because they were not cutting anything.  Obviously, this type of scenario is not ideal, but it is actually quite common to come across modelling practices that associates or other companies use that don’t really fit directly into your own workflow. In those situations, you often need to find a workaround, or perhaps discuss this issue to try and come to a compromise.

In this case, the engineer recommended this course of action:
I just noticed some of the columns have the yellow voids displaying, this is a Revit gremlin that creeps in overtime and needs to be fixed every few days or before issuing but I forgot. I can fix it and re send alternatively if you have started working with the file, it is as simple as editing the family changing a parameter and reloading It, essentially doing a regen. The other option is to select all rectangular columns and change the parameter ‘void offset’ to say 2.

How do you deal with differing modelling practices?  Have you been able to solve these issues, or have they become permanent headaches?  At Virtual Built, it is our primary goal to make teams function more efficiently throughout the entire BIM process.  Do you have a problem that needs solving?  Or do you have a great workflow solution that you would like to share?  Feel free to contact us.  Let’s collaborate!

http://bit.ly/MuT5fT

This forum post by John Lipp is definitely worth a read:
http://forums.autodesk.com/t5/Navisworks-General/changing-part-color-in-Navisworks-by-Excel/m-p/3437673#M3555

In part:
Then repeat for the other datatools links changing the Category for COLORS_proengineer, COLORS_INVENTOR, and COLORS_User Data.

Then after the profiles are set up, you can click Run in the appearance profiler, and the colors will change according to color properties that are being pulled from the excel file.

I’ve attached the Excel file, Appearance Profiles dat file to import, and the NWF with the datatools links setup.  If you drop the three files in the folder with your models, open the NWF, import the .DAT file into the appearance profiler tool and run it, it should change the items in the models to either red or blue based off of the colors specified in the excel file.

This example has colors specified in the excel file, but you could use some other property in the database such as “Out of Service” column with a value of either yes or no and create an appearance profile that checks if that property is yes, and if so, set the color of those items red.

With the appearance profiler, you need to actively run the appearance profiler to set the colors if the excel file is updated.  If you wanted more automation, then you may wish to look into the Navisworks API.

Attachments:

 
 

Quote:
By using Navisworks with BIM 360, you can ensure that everyone on the team has access to the “single version of the truth,” collaborate and connect with the rest of the team for collaborative project review and coordination workflows.  This integrated BIM 360 solution gives you and your team access to the most up-to-date project data in the cloud, anytime, anywhere. There are different points of access tailored for specific roles, such as direct access from desktop apps for designers and VDC managers, and mobile access for project managers, clients, and field personnel. 

It’s important to know that Navisworks and BIM 360 share the same core technology for large model viewing, navigation, and clash detection. If you run a clash test in Navisworks and the same test in BIM 360, you will get the same results. Navisworks and BIM 360 share the same data structure – which supports round-trip data exchange throughout. 

Read more:
http://beyonddesign.typepad.com/posts/2013/10/how-to-use-bim-360-and-navisworks-on-your-projects.html