Revit Rants

Revit 2011 - Creating a Parametric Shade Sail using Adaptive Components

2010-07-22T22:25:00.000+10:00

In this video I'll demonstrate how something can be easily made very parametric using adaptive components for a tension structure such as a shade sail.

Why can't I see this element??!

2010-07-22T08:45:00.000+10:00

Arggh, there is nothing worse than trying to find why an element isn't visible in a view, so many different potential causes that need to be checked. I thought I'd put a little bit of a checklist together:

Is the view "Discipline" set correctly? For example if your view is accidentally or purposelly set to Structural the wall may not be showing because its non-bearing...
Is the view range set correctly to see the particular element? I'll often switch to my 3D view and orientate it to match the view, if I can't see it in the 3D view its most likely a view range issue.
Is the element in the correct phase and is an appropriate phase filter set in the view to make it visible. Maybe someone set it in a future phase?
Can you see the element by enabling "Reveal Hidden Elements"? If so, select it and select unhide element or unhide category. Try not to use the Override element or hide in view options...
Is the element in a worset that isn't open or turned on in the view?
Is there a filter applied to the view that is causing the element to be hidden?
Has someone used the linework tool on the element?
If its a family, is the detail level of the view set correctly? Sometimes families are set not to show at Coarse.
If its a family, has someone selected the geometry of the element not to show in plan, section/elevation as the case maybe?
Maybe the view has been created as a detail view? By default certain categories aren't visible in a detail view... As such change to a standard section.
Is the element part of a design option and perhaps that isn't the current option for that particular view?
Is there a plan region in the view that is adjust the view range settings incorrectly for the area in question?
If its a datum, is the 3d extents of the datum intersecting the view?
If its a section/elevation marker, check the "hide at scales coarser than" parameter to ensure its set appropriately to show.
Is it part of a linked revit or dwg file? Ensure that the link is loaded...

I think there are a few more, but that's all i can think of off the top of my head. Feel free to post comments of any additional ones you think of and I'll add them.

Cheers!

I know this can do my head in sometimes!

FREQUENTLY ASKED QUESTIONS

2005-11-18T13:59:00.002+10:00

Frequently Asked Questions:

1. How can I override the dimension text? (You can now do so in R2009+)

Simple answer, you can’t. Workarounds are best explained here http://revitoped.blogspot.com/2005/11/de-value-engineering-dimensions.html

2. I created some levels but there aren’t any plans associated with them, can I add them?

Of course: Go to View->New->Floor Plan… and simple select the views you wish to create plans for. The standard windows ctrl and shift click selections apply here. The same principle applies for ceiling plans.

3. I can’t see some of my levels in one of my elevations/sections?

All levels/grids/sections (referred to as datums) have 3D and 2D extents. If the 3D extents of that level don’t cross the 3D extents of the section or the elevation they will not show. Therefore, to make them show you need to adjust them in an elevation/section so they do intersect. When you select a datum an indicator displays showing whether the datum is currently set to 3D or 2D extents. This is a toggle, click on it to toggle its value. If you right click on the datum in a view it does display in and select maximise 3D extents it will expand the extents to the full boundaries of your model, which should hopefully make it show up in your appropriate view.

If they don’t show in any views, you’ll need to create a scope box. Under your drafting tab is a tool called scope box, use it to draw a 3D box completely around the extents of your model. Now in elevation add another level (this will be temporary), right click and choose “select all instances” go to the properties and there is a category called extents. Where it says none, click and choose your scope box for the drop down menu. Then click okay and your levels should now appear as there extents have been adjusted to that of the scope box. You may delete the scope box now if you have no further need for it.

4. How do I place a door in a curtain wall?

Curtain walls do not behave the same as normal walls and doors are not placed in the same manner. There are two options for placing a door in curtain wall.
In your modelling tab, place curtain grids to break up the panel to the size you’d like to make your door. Switch to a 3D view, hover over the edge of your curtain wall panel where you’d like to place the door. Now use the key to cycle through the various options to select the panel you’d like to change to a door. Now in the element drop down menu where it says System Panel: Glazed, change the panel to the appropriate loaded curtain wall door family. That’s it, now just adjust your grids appropriately to get to the correct size and apply mullions as appropriate.
The other option is to change the panel to a wall type. You may have noticed in the previous method you could pick from available wall types. If you change the panel to a wall you are then able to place doors as you would a normal wall. You could even make the door take up the full extents of the wall so it wouldn’t matter what wall type you actually used. There are issues currently with this method and schedule to and from room information of doors placed this way.

5. Can Revit create linetypes with text along the line or symbols to represent stormwater or various other services?

The short answer is no. You can create a line based detail component, but the text symbols would need to be a nested symbol family. I've created one which enables me to set the value for the text to anything I want as a Type parameter. You can't currently do this for a curved line though...

6. How do I change the swing angle in plan of my doors?

This feature is only available if the door has been created with an instance parameter for the adjustable swing. This is best explained in the in-built Revit Tutorials.

7. How do I create my own hatch patterns?

You can either learn the appropriate code to edit the pat files directly using a text editor such as notepad or utilise a program such as Hatchkit. http://www.hatchkit.com/

8. How do I change a model pattern to a drafting pattern or vice versa?

Edit the PAT file using notepad and add or change the following values:
;%TYPE=MODEL for model or
;%TYPE=DRAFTING for drafting.

You can also set the units with the following operator:
;%UNITS=MM to set to millimetres…

9. How do I change the elevation symbols to match my section markers? (You can now do so in R2011+)

This isn’t possible. Elevation tags are system families and can only be modified using the settings in the elevation tag properties… This is a long standing wishlist item.

My typically workaround (for times where its absolutely necessary that the elevations look a certain way) is to create a new section type called "Building Elevations" Then I'll give the section a head with no tail, then drag the section cut line in plan to be short enough that its not visible. Refer to the tutorial...

10. I have a window above the cut plane that I need to display but I can’t change the cut plane without effecting everything else?

Create a plan region. A plan region allows you to draw a boundary and adjust the view range settings for that area independent of the rest of the view. The great thing about 2008 is no longer do you have to search for plan regions by hovering around your model, they now display a boundary in plan that doesn't print.

11. How do I apply different materials to individual wall faces or similar without having to make a new type?

Use the paint brush tool from the tool bar. Select the appropriate material then pick the face you’d wish to paint; to reset the material back to its original settings, paint it with the by category material.

12. How do I attach a wall to the underside of a stair/ramp?

Refer to this tutorial. http://www.revitcity.com/tutorials/stair-wall_trimming/. Hopefully this process will become more automated with future releases. Another way is to use the ramp tool, or to select the wall and split it at each tread...

13. I placed a beam but I can’t get it to show in section/elevation (it only shows as a line)?

Change the detail level of the view from coarse to medium or fine.

14. How do I create a slanted/sloped column? (You can now do so in R2010+)

In 2010 onwards simply use a structural column and set the angle in its instance properties. Otherwise, you need to create a column with adjustable parameters for the angle. Refer to this thread: http://www.revitcity.com/forums.php?action=viewthread&thread_id=592#2062

15. The floor hatch pattern is showing through my plumbing fixtures/furniture in my plans, how do i stop this?

This is caused by a setting in each of the families themselves. If you edit the family, switch to a 3D view and select all the 3D geometry, then hit the visibility button on your top tool bar. You'll notice that its turned off in plan, you can turn it back on here and reload if you like.

If the 3D geometry is an imported dwg, there maybe excessive 3D linework which you don't want to display in plan. In this case you'll need to create a masking region (2008) to represent the element in plan and line up with the 3D geometry - you'll also most likely need to do this in front and side elevations as well.

16. How do I create a canted/slanted/tilted/angled wall?

You need to create a mass to give you the correct angled surface of which to place your slanted wall. Masses are used as an invisible framework to control entire building layouts or complex geometry such as this.

Once you have created your mass, either by solid extrusion or a blend (depending on the slanted walls complexity), you can use the Wall->By Face option or Curtain System by face for curtain walls. Just select the type of wall you'd like to place then pick the surface.

Then its just a matter of turning your mass visibility off...

You can use geometry created in other programs as a mass (such as sketch up or Rhino)

17. How do i save back to a previous version of Revit?

This is not possible. Revit is bought on a subscription basis only, so there is never a reason not to have the latest version installed. This way the Revit support team can concentrate on supporting one version of Revit rather than having to maintain superseded releases.

18. Red Question marks are showing up in my titleblock and i can't type in the appropriate values?

This means that there are shared parameters in your titleblock which are yet to be loaded into your project. If you are not aware of what shared parameters file they are located in and the parameters names, edit the titleblock, select the label and edit the parameter to find out where its located first.

Then in your project goto Setting-->Project Parameters-->Add-->select shared parameter and navigate and find the parameter you wish to add-->Select what category of families you wish the parameter to apply to, in this case either project info or drawings sheets (generally drawing sheets)-->Then select whether its an instance parameter or a type parameter-->Hit Okay and repeat for any additional parameters.

19. When rendering there is this plane showing through my building that i can't get rid of?

This is most likely a ground plane. Many people forget that the ground plane is set in TWO locations and must be off in both of them.

These locations are:
Settings-->Render Scene-->Environment-->Advanced... Ground plane
and
Settings-->Sun & Shadow Settings-->Ground Plane at level.

Turning this off in both this locations should resolve the issue.

20. Why won't my family show cut by a section?

If you look in your Visibility Settings (shortcut - VG or VV) you'll see in the Cut column some cells are greyed out. This particular family categories do not show cut by a section. Instead if a family is cut of this category the entire family displays. This was obviously implementing for items such as a couch where you don't want to see if being cut in a section. Personally I think all families should have the option in their settings as to whether they are cut or not rather than not giving us a choice.

To resolve this go to Settings-->Family Category & Parameters and change your family to a category that will show cut.

Revit Sheet Management & Issuing Painful?

2010-07-21T18:26:00.000+10:00

Who finds editing sheet/titleblock information tedious and slow?

What about adding consultant sheets and mass sheet lists into your project one at a time, what a pain...

Not to mention the issue process of exporting DWG, DWF/PDF, Hard Copies, file naming, uploading to online systems such as Team Binder/Aconex/IrisProjectMinder etc. Prone to human error and so repetitious!

Filling out transmittals/repeating data entry multiple times, yuk...

Certainly don't want to have to manage tonnes of shared parameters and a difficult setup process!

Need a simple solution that's easy to use?

Well very soon we will be releasing our first amazing Revit enhancement bound to drastrically improve your productivity and sanity!

Stay tuned!

PS. Post any special requests and we'll see what we can do :) Also, add this blog to your Revit communication centre by using this RSS feed: http://blog.cadway.com.au/feeds/posts/default

Making a completely parametric mobile crane - Overview

2010-07-12T09:04:00.000+10:00

This video runs through the introduction and overview of how the family is setup. If there are specific topics you'd like me to address in more detail please comment.

Making a completely parametric mobile crane

2010-07-02T08:24:00.000+10:00

Throughout July I will be posting a series of videos demonstrating how I went about making this 150T parametric mobile crane.

The crane has:

Adjustable materials
Adjustable rotation
Adjustable extension
Adjustable support extensions
Adjustable boom angle
Adjustable cable drop/automatically stays perpendicular to the ground.

We will look at how we can add jigs, rules to stop the crane overextending/tipping. I am interesting in any crane experts posting limitations they'd want to impose as I'm going on very limited knowledge of cranes so the values I use may not be correct, but the principles will be the same.

Revit Hatch Patterns (Hatch Kit)

2010-05-11T15:43:00.013+10:00

Firstly apologies for my slackness in regular posts...

This question has come up a lot, and its how do I make custom hatch patterns for Revit?

Typically I'll recommend using Cadro's Hatchkit.

However, I recommend a different workflow to using hatchkit directly as the editor. I like to use the import DXF feature.

Begin by starting up Revit.
Start a new project.
Start a drafting view, set the scale to 1:1 for a drafting pattern or 1:100 or similar for a model pattern.
Now using solid detail lines draw the pattern you'd like to create at the scale you require it. In my example I'm trying to create a water surface pattern (some waves).
Next we need to outline a box/tile that if repeated would create a clean pattern and break our linework here.
Then delete the excess linework. (leave the box there as this helps to define the size of the tile)
Export to 2004 DXF format.
Start HatchKit
Go to File-->Import (change files of type to DXF entities) Find you file and import
Now we just need to delete the box that we drew. Select each of them by clicking on the white box and delete. You actually end up deleting 6 lines...
Finally add a name/description/comment then save as a Revit Model or Drafting pattern as required.
Its now ready to be imported and used in Revit!

KAUST: Breakwater Beacon Inauguration

2009-09-30T15:06:00.010+10:00

After 4 months of documentation and modelling, and finally construction, the Breakwater Beacon is finished.

Designed by Daniel Tobin & Jamie Perrow of Urban Art Projects and the Plaza by Liam Proberts of Fairweather Proberts, Cadway and specifically myself, were given the difficult tasks of taking the complex design and producing accurate and complete documentation in order to realise this design.

Working with the Structural Engineers, Robert Bird Group - Lance Barton, strict construction tolerances were given that were part of the design constraints.

I then took these design constraints and constructed a highly robust Revit Family with over 70 parameters and numerous complex formulas (conditional statements, trigonometry and algebra). By creating parameters and using the API to calculate the true lengths of the edges of the hexagonal rings we were able to automate a lot of the shop drawing creation for the precast concrete elements. Within Revit we were able to directly and automatically extract weights and volumes to supply to the Structural Engineer for calculation.

Unfortunately, it wasn't all straight forward. Early in the design process I had to go through a number of iterations of my family whilst the construction technique was established. That is, which sections were Precast Concrete and which sections with Cast in-situ. The main issue being that the cast in-situ was a different colour to the precast concrete which wasn't a desired architectural outcome.

From there the Lighting Designers, Norman Disney and Young became involved and we worked with them to set out recessed lighting locations directly in the precast pieces themselves and documented their exact locations.

The Structural Engineers calculated 3 lifting points for each piece that simplified the lifting process so the natural centroid of the piece was already correct when lifted by the crane and lowered into position.

From here it was a process of placing all the individual hexagons and adjusting their many parameters to suit the concept design. As we were using Revit, as we placed the elements more and more of the documentation was also being completed. We were given tolerances for the spacing of the pieces to work with and then for every piece we supplied 12 coordinates to locate the precast members onsite (6 vertices internally and externally). Every single piece was different in shape and the internal faces of the precast members were completely faceted so the Revit family had to completely triangulate the faces.

Finally once all these pieces were placed, we then had to specifically model up the 4 different entrance frames which also had a steel framed core. We supplied the centroid points of the void spaces to the structural engineer and produced shop drawings for the many segments that then framed the doorways.

The final stage to be completed is the entire plaza level which should now be well underconstruction to immitate the Giants Causeway.

If anyone has any questions please don't hesitate to post a comment. I hope some find this information useful or interesting.

Customized Revit Families - Revit Content

2009-07-02T08:05:00.001+10:00

Although I haven't downloaded this content, it looks to be fairly good quality if it all works as advertised. Although for some items they are overmodelling which may potentially cause issues on larger projects with the amount of detail that is being shown. One would hope they have set the models correctly with coarse, medium and fine displays and that the individual family sizes don't exceed 1MB each.

See for yourself.

We create your customized Revit Families - Welcome to Revit Content

Shared via AddThis

Conceptual Mass - Defining Area to control width & length automatically

2009-05-25T07:51:00.004+10:00

In this quick tutorial I've taken a request from Ry on linkedin to produce a rectangular mass family where you can set the area, then use grips to change the length and width whilst still maintaining the required area.

Conceptual Mass (2010) - Octagon Panels & Mitring

2009-05-14T09:08:00.007+10:00

This is just a simple little tutorial that talks about how to get your edges to cleanup without a gap for both sides of your panel. I hope someone finds it useful.

Due to some issues with Blogger this took a while to get online...

Families the Basics - including management

2008-07-04T12:01:00.003+10:00

Well its about time I updated my blog. For those that couldn't attend the recent Revit Technology Conference I thought I would post links to my powerpoints should you wish to check them out.

This is the talk I did about Families.

Generally it investigates how to setup standards in your office in order to maintain control of your library and develop consistency as well as maximum functionality.

Unfortunately our webserver no longer allows me to post these large files. Please use this link to PDF.

It then looks at some of the basics of family creation of which I then did some live demo's. If enough people post interest, I'll upload a video screen capture of this... :-)

Revit Rendering Fundamentals

2008-07-10T08:15:00.006+10:00

Here is a link to the other presentation I did:

Apologies this file is rather large due to all the embedded images (37MB approx.)

Again, I love to hear feedback both good and bad. It gives me incentive to keep updating this page...

EDIT: Webserver no longer allows me to have files this large. Please see link to PDF.

Revit Elevation/Section View Depth Clipping workaround

2009-04-16T14:06:00.009+10:00

Hello readers,

This is another one of those workarounds that I've been doing for a while and wasn't aware that a lot of people didn't know of it. Its a very quick method to creating depth in your elevations/sections without adding masses, using the linework tool, or utilising shadows. (although in Revit 2010, with directx turned on printing of views with shadows has improved exponentially!).

This is my first attempt at uploading a video so please let me know if people have any difficulties viewing. It has been encoded using the Techsmith codec. TSCC in AVI format.

Autodesk release 2010 Product Line Up

2009-03-26T08:39:00.003+10:00

Autodesk today started shipping there 2010 product lineup.

http://store.autodesk.com/store/adsk/DisplayHomePage

Revit 2010 introduces:

New User Interface (ribbon) - which from my experience is a better implementation than most other platforms that have implemented the ribbon.

Conceptual Modelling tools - A complete redesign for the conceptual design modelling tools enabling nearly any form to now be modelled directly in Revit. You are no longer confined by blend, extrusion, sweep, revolve and swept blend. Instead simply draw the various components that would make the shape, select them and then hit create form/void... You still need to be aware of intersecting geometry as this will result in the "unable to create..." error that is typical in Revit. Furthermore with this tool you can apply complex patterns to them based on a UV breakup of the surface. And the very cool feature is this can all be controlled via the API to generate some amazing mathematically driven patterns for surfaces. Checkout Guy's blog for some examples shortly.

Performance Enhancements - 2010 ditches Open Gl for Direct 3D as well as being native x86/x64 with some minor multi-threading tasks now implemented (no longer two separate installs). Graphically 3D navigation is much faster that 2010 and should be a welcome addition for most offices. Also, anti-aliasing of 3D views means linework is going to be much smoother rather than stepped as well as being able to turn on gradient backgrounds for a little more effect to your perspective and orthogonal views.

Minor Drafting Tool inclusions - You can now control the underlay linetype on a system wide setting as well as halftones. Also a new tool called Spot Slope which can indicate the slope of a surface that its placed on (similar to a spot co-ordinate or spot elevation). Unfortunately it doesn't work with Ramps as they still require fixing... Be careful when tagging roof pitches in elevations to use your tab key as you may inadvertently tag the ridge line instead of the true perpendicular fall meaning you'll get a different value than expected.

Interoperability - Bi-directional communication with Civil 3D via the adsk format, the ability to import adsk files from Inventor for family creation (things like connectors are transferred as well as all the product information) - hopefully this will assist with some accurate content becoming available soon. Exporting to gbXML has also been improved with a full graphical review of the export and analysis now available prior to export to iron out any issues before hand.

Let downs:

There are most likely going to be a number of bugs in the initial release so it may be worth waiting for WU1.
No notable bug fixes.
Not many drafting tool enhancements and no text enhancements.
Great release for those doing landmark buildings, others may find the release light on features...

Building Information Modelling Asia 2009

2009-03-05T23:04:00.004+10:00

I've recently returned from a conference on BIM in Singapore. Apart from an injury I received on the flight home I considered it to be a very worthwhile event.

There were key speakers from Developers, representatives of BuildingSMART, Tekla, Autodesk, Gehry Technologies as well as numerous others.

I guess the biggest thing I got out of it was that Revit isn't the centre of the universe! BIM can still work equally as well even if a number of the disciplines are using difference platforms. Yes if everyone is utilising the same platform such as Revit it can somewhat automate some of the more mundane co-ordination tasks - but it is not pivotal to a successful BIM. There were quite a few quoin phrases thrown about such as "Big BIM", "Little BIM" and "Integrated Project Delivery (IPD)" but only the latter had any real significance. Big BIM and Little BIM seemed to me to be a cop out to being able to say "this was a complete BIM project" when BIM was only partly implemented.

IPD refers to the involvement of all the Owners, consultants and Architects right at the conception of the BIM to establish project deliverables, specific outcomes and results to ensure the project is developed in such a way as to automate and produce these outcomes with minimal effort. It also involves the entire team communicating at equal levels in a Project Documentation/Design/Analysis Utopia all operating for the sole purpose of whatever will best benefit the project. Rather than, "its not my job"...

Over the next few weeks I plan to compile and develop a spreadsheet of BIM capable software for all stages of a building lifcycle including FM, that identifies the best way's for each of them to communicate with each other with regards to file types, formatting and setup for various uses that maximises data integrity through the life of the project. I welcome people to post their findings and designs for best interoperability methods with the various other packages as well as most applicable software to co-ordinate it all. Personally, we are going down the Navisworks road...

If anyone also has any questions specifically about the conference please ask as I will be more than happy to elaborate on any of the subjects if people are interested.

Curtain Wall - Corner Cutouts

2007-09-11T08:35:00.000+10:00

If you've ever tried using embedded curtain walls for strip glazing then I'm sure you've seen this situation at the corners...

That's right, the corner doesn't get cutout correctly...

Now, there are a few different ways to resolve this. My preference is to create a wall hosted generic model. Then I just create a void in that family, give it instance parameters for width, height, thickness etc... And finally use the cut geometry tool to tell the void to cut the host.

Now I can just load that family into my project place it in the offending wall, use the grips to adjust its size to fit the situation and then move it into place.

Too easy. Advantages? Well its a family so they can easily be filtered, they don't have a huge effect to your file size and its easy to adjust. Plus you can always select them and change them as needed.

For one I prepared earlier use this link:

http://www.cadway.com.au/Signatures/CLP/Corner_Cutout.rfa

I hope you find this helpful :)

A "Family Type" Parameter for swappable subcomponents

2007-09-11T08:55:00.000+10:00

I'm sure a lot of you have seen this before and its a really powerful tool. I'm referring of course to the ability to have "Family Type" parameters in a family for nested sub components.

What does that mean?

It means you have a single door where you can swap out the panel, or handles or frame. This avoids you having many different door families to achieve the same thing. It also means you don't have to load in 15 different families into your project, instead you may only need 2 or 3 and thus its better for file size.

Flexibility is a great thing.

So how do you make one of these parameters?

Well the key thing to having this work correctly is that all the sub-components that you wish to swap out must have the same insertion/origin point and be constrained by that point.

Begin with a template:

Start with a "non-hosted" generic model family template (remember you can always change the family category later).

Now we need to set the "defines origin" reference planes in the X, Y and Z planes.

My template for door panels is setup as follows:

So my defining origin points are the Bottom Reference Plane (note I set it to be "Is Reference = Bottom), Centre Left/Right & Centre Front/Back.

Make note of this as when you load this panel into your project you need to define it by these points.

These are the parameters I include in the door. Note I have parameters to control vision panels if they exist. This way I have even more flexibility...

So once you've finished you need to load your panels into the host door family.

NOTE: This is personal preference, but I leave my door panels as generic models and set my door hardware to Furniture category.

DO NOT load lots and lots of door types into the one family. If you load too many your family will become too large and take ages every time you want to make a change to it. Load your standard door panels (most commonly used) only. I then have a subfolder that has an extensive library of door panels & hardware that I only load in on a per project basis...

Now we need to setup the host family.

Start with the Door Template. As a general rule I always delete the existing trim extrusions and remove their associated parameters. The other change I make is to the Width & Height parameters. In the template the height and width parameters are actually associated to the opening... I don't like this, I prefer to use the "Rough Height & Rough Width" parmeters for the opening sizes and then use the Width and Height Parameters for the panel sizes. So change this if you agree with my logic (just select the Width dimension and change it to Rough Width in your options bar pull down)

The next thing I'll do is load the panels that I want in the door family.

Upon doing this I immediately link through the parameters for every door type I loaded...

This is the labourious part. Go to each type you loaded in the project browser, go to the element properties for each one, then link through all the parameters by clicking the "link" column for each parameter. For the first one you will need to use "Add Parameter..." for the ones that don't exist yet. Then after this you can just pick them. Note I link Panel Width & Panel Height to Width & Height respectively. (note for double doors I don't do this because I have extra parameters for each door panel, left/right).

I then go to plan view and place one of the door panels randomly. I then constrain its left/right location using its centre left/right origin point (use the align tool and then lock it). I then constrain its front back location using its Centre front/Back origin point.

I generally have an undercut parameter so to constrain the Door in the Z axis I go to element properties and in the instance parameters I'll link the level offset parameter to my undercut parameter...

So we've now constrained the panel in the X, Y & Z axes which was the insertion point of the panel.

Now we need to add the Family Type parameter to enable us to swap out the panel for the other loaded panels...

Select the panel you placed. Look at your options bar

You see there is drop down called label and its currently set to "None". Select "Add Parameter", give it a name and your done.

If you load this door into a project you now have a parameter that enables you to swap out the panels as needed.

Now this quick tutorial didn't really go into the depth of creating a door it was more to concentrate on the parts that are required to successfully create a working "Family Type" parameter.

I hope someone finds this useful.

Post if you have queries, as I'll add more detailed info if it proves people still have trouble.

Cheers.

3D Engraved Model Text

2007-10-24T06:02:00.000+10:00

I had someone request this the other day and the solution is really very simple.

Simply create your model text as you would normally and set the plane so the text is embedded on the face of the wall or system family that you want to engrave the text on.

Use your join geometry tool on the wall and the model text - This makes revit cutout the model text from the wall.

Now just set the material of your model text to have a 100% transparency...

Too Easy!!

In Place families when should I use these?

2007-12-06T13:47:00.000+10:00

In place families trip up a lot of new revit users. Sometimes its just so quick & easy to create a family on the fly in the project.

Unfortunately though they have some real negatives. For instance they typical have a big hit on your file size especially when you start making them reference surrounding geometry in the project. Also, one of the worst things you can do in Revit is start copying around the in-place families in the project...

Many new users don't realise that unlike a normal family all the copies are actually completely new families. That is, changing one, will NOT update all the others. If it repeats it needs to be an external family.

So what in-place families do I create?

Generally the only things I'll model in place occassionally are floors, stairs & ramps. Modelling monolithic stairs and ramps as floors is a great idea as you can then attach walls to them and get those connections to floors correct. This is also because of the current limitations of the stairs & ramps.

I prefer to model complex floors as in-place purely because they don't adjust when you move walls, causing sketches to occassionaly become invalid and delete your floor. This also gives you absolute control over footings, and various beams through the slab.

Another trick is with High-Rise buildings where you have complex floors that are typical over a number of levels.

I'll model the first one in-place,
Then whilst still in edit family mode, copy all the geometry and paste aligned into a new external generic model family and save it as say "Floors 3-9".
I then switch back to the project and delete the inplace family i just made.
I create a new in-place Floor family called "Level 3 Floor" and load the generic model family "Floors 3-9" into it and place it on level 3.
Then finish the family.
Revit then understands that this family is a floor allowing you to attach walls to it.
You can then copy and paste by level to levels 4-9 and rename in the inplace families as per the level they are apply to. Yes we did just copy and inplace family, but because its contents is purely an external family there is no real overhead in doing this. Plus if we make a change to that generic model and reload it, it will update all of our floors!

Let me know if you'd like me to post any other examples...

Revit Technology Conference 2008

2008-05-30T13:59:00.002+10:00

Its that time of year again!

Revit Technology Conference 2008 is on in June. I will be speaking as well as a host of other people. I strongly recommend you attend as its going to be 3 full on days of intensive training.

Hope you can make it.

Info can be found here http://www.rugsyd.com.au/rtc2008/rtc2008_events.htm

Join Geometry Secrets

2008-02-20T17:56:00.002+10:00

This is an interesting little trick that I've taken for granted for some time now and didn't realise a lot of people weren't aware of it.

If two adjacent walls are within say 25mm of each other and you use join geometry between the two walls (they don't even need to touch) the two walls inherit the openings of the other.

This is very handy when you are forced to model finish layers separetly in some situations. Saves you doing the unthinkable and using the evil "edit profile" option...

HTH.

Revit Referencing Sheets on View Tags

2007-12-06T13:24:00.000+10:00

Do you use the Referencing Sheets parameter in your view tags?

If you do then I bet you've had times when you thought why on earth is Revit choosing to reference from some bizarre view instead of the one you want.

Well its really quite simple -

It uses the drawing sheet numbers to determine which view to back reference.

For instance, lets say you have a sheet set as per the following:

010 Site Plan
020 Existing Plan
030 Demolition Plan
040 General Arrangement Plan
050 Elevations
060 Sections

etc.

Now lets say you have your section and elevation markers turned on in all those views and they haven't had the "hide at scales coarser than" parameter assigned properly.

In this case your Elevations & sections would display their referencing sheet as 010. This is because when you are looking through the set its the first drawing you would come to (logical hey).

Now if we go to the Site Plan and turn off the sections/elevations or charge our "hide at scales coarser than" parameter so as to effectively turn them off in this view. Our sections and elevations are now magically updated to reference back to 030 (this is assuming that they are new construction phase sections and elevations). Again because its the first drawing you would see the markers when looking through the set.

If you're anything like me, I want mine to back reference to the General Arrangement Plan (040). So our dilemma is do we turn off the section & elevation markers in this view? (probably the obvious choice) or the alternative and probable wrong solution would be to adjust our set order so the general arrangement plan comes before the demolition plan in the set...

I look forward to a setting in Revit where we can override this behaviour in special instances. But understanding this may help you identify why sometimes a view is being referenced from a strange place.

----------

I've also noticed some strange circumstances, usually when dependant views are involved where views reference back to a sheet that has the markers turned off. Hopefully this bug will be fixed or maybe it was just related to my file being corrupt?

Mr Spot's 5 Golden Rules for Revit

2007-11-17T09:01:00.000+10:00

I had an anonymous user request my 5 golden rules which I thought was a great idea!

The hard part is trying to prioritise what I think are my top 5 rules, so hard in fact that I think I need to break it down into 2 categories. Project & Family:

PROJECTS

Work in multiple views. When you are working on your model make sure you completely understand the extents of what you are editing. I don't believe this can be done from any single orthogonal view. Working in 3D is great and should be done as much as possible as you can quickly see how the elements you are manipulating interact with elements around them (make use of section boxes to do this also). Too many times I see users trying to make changes only in a plan and then a week later discovering all the issues they have made for themselves in their sections...
Setup your template effectively and continually update it & customise templates at the beginning of new projects to suit that project. If you find you have to make graphical changes to your project everytime you want to print something or once it reaches a certain stage then there is a good chance your template file isn't setup appropriately. The earlier you do this and the quicker you update your templates the less redundant work you'll have to do updating the many revit files you end up with.
Plan your project! Sit down with pen and paper first, especially for large projects or projects of an unfamiliar type, and work out exactly how you are going to document it. Are you going to use groups or links or design options? If so what are the issues in doing this and how are you going to resolve these? How is the project team going to work? Important questions that need to be resolved as soon as possible, preferably before the model is started.
Develop a system of control for your Library. Family naming conventions, parameters (what do I want to show up in my schedule?), displays at various scales...
Make use of your model as much as possible for drafting and details. If you use your model as the basis for your details then you can identify issues before they get to site. Yes of course you should still draft over these for details, but using the model as the basis you know when your details need to be updated or re-looked at.

Hmm, most of these are standards based which shows my position as CAD/BIM Manager. But really having your standards and protocols in place is one of the MOST important tasks in maintaining an effective Revit working environment.

FAMILIES:

Setup Reference planes first! I can't stress this enough. It makes creating parametric families so much simpler. Place them in and give them names and appropriate strengths (ie: Centre Front/Back, Bottom or Weak)
Give your family an appropriate ORIGIN point. This is especially important when using arrays as I've spoken about previously.
Do all families as non-hosted (there are some exceptions) first. Then simply nest them into the hosted template. This way its very simple to constrain them to their host.
Fill out and add parameters & types for all your families. As a good friend of mine says, Wesley Benn, leverage as much data as possible. Info entered once here is info that doesn't need to be entered 10 times in your next 10 projects...
Minimise numbers of families by making them as flexible as possible. Less families means, smaller project sizes, quicker load times, less things to change and things are easier to find. Refer to some of my previous posts to see some methods of doing this.

Well that's my list. I'm sure I could easily have a top 100...

As always your comments are most welcomed.

Requests for Posts

2007-11-15T08:26:00.000+10:00

Hi everyone!

Please post your comments on this thread as to any particular items you would like me to touch on.

I've finished uni now and have the internet on at home again so should be able to start posting more frequently...

I'll then try to add posts based on peoples requests...

Cheers!