Flex and Conduit Part 1 Flex connector family

In All, Electrical by Rick BuckmanLeave a Comment

Flex and Conduit Part 1 Flex connector family

This tutorial will cover how to utilize flex and conduit on a group. This is an approach that I have implemented at the workplace and it presents some creative work-arounds to the lack of content for MEP in Revit. This also is a means to consider when speeding up your modeling efforts. I believe you can use this method in numerous capacity no matter what your discipline.

 

For a base point I am starting with a family that is hosting 2 separate types of connectors. One of which is a “Conduit” connector as well as a “Piping” connector. This will allow for us to model flex from one end and conduit parts from the other. We are in fact building a transitional assembly.

 I will begin in by making the flex fitting family. This is just a straight fitting for going from EMT to Steel flex.(FMC) very common in the electrical trade. We will just use a static part and model the geometry. You can R.E. one in house. Or pull content from the web. Start with a generic family template and make it a “Conduit Fitting”.

Next we will need to add  a shape extrusion to snap our connectors too. We will make a cylinder extrusion right down the center and align the ends  to line up where we want the connection points. The shape is below in blue.

Next we will place a primary conduit connector on the “EMT” side where its threaded.  Should look like this below.

 

We will size it to match the Nominal Radius of the fitting. This is the trade size not the actual dimension. So for a 1/2″ fitting I have it set to 1/4″. Nominal Radius is also set under Parameter data as Discipline: Electrical\Conduit Size Under the parameter settings.


 

Next add a pipe connector to the other end. This will be the end you will draw flex pipe from. Repeat the size of the Dimension Radius to Nominal Radius of the fitting.Set the Flow to Out. Not sure it matters but its working for me.

 

The next item is to load this into a mock or test file. When selected it should look like this.

Now comes a test. Snap a conduit coupling to the EMT or threaded side. Then draw a flex out of the other end.Right click on the Pipe connector shown above that is inside the fitting. You will see the option to draw flex pipe. 


Next we will need to add  a shape extrusion to snap our connectors too. We will make a cylinder extrusion right down the center and align the ends  to line up where we want the connection points. The shape is below in blue.
Next we will need to add  a shape extrusion to snap our connectors too. We will make a cylinder extrusion right down the center and align the ends  to line up where we want the connection points. The shape is below in blue.

 This will be used to model our flex family and we can track this later in a schedule of materials.

When your done with this stage, it should look like this below:

In Part two of this series. I will show you how to use the power of Groups and how to incorporate these ideas into your existing parts library.As well as placing settings and parameters. Remember to always challenge the Status Quo and think outside the instruction manuals. Check back soon for part 2. Happy Modeling!

Next add a pipe connector to the other end. This will be the end you will draw flex pipe from. Repeat the size of the Dimension Radius to Nominal Radius of the fitting.Set the Flow to Out. Not sure it matters but its working for me.

 

The next item is to load this into a mock or test file. When selected it should look like this.

 This will be used to model our flex family and we can track this later in a schedule of materials.

When your done with this stage, it should look like this below:

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