Archive for February, 2015

Do your Revit families work in Archicad?

February 14, 2015

Just something I’ve learned about exporting to Archicad via IFC (from Revit 2014).

I’ve been helping our Christchurch office resolve a display issue with our electrical fixtures when they are imported into Archicad. The fixtures concerned have the outside edge missing when viewed in section.

After some testing, we narrowed down the problem to the radiused front edge. The images below show the ootb Revit family on the left (it has sharp edges), and our family on the right.

(sorry about the image quality, they are saved out of an email thread)















In ArchiCAD they can fix the problem (by type) like this;


editing the ArchiCAD script













But would have to do it every time we send them an updated model.


The ArchiCAD hidden edge parameter is the key, it has at least 3 settings;

0/1 is an on off toggle

2 is an instruction to draw a line where no edge is present


We can not force hiddenEdge to 2 when exporting to IFC (as far as I know)


I’ve never actually used ArchiCAD, is it possible to force hiddenEdge to 2 when importing IFC? If so, I’d like to know how so I can share the information.


Currently our best choices are to swap out all the fixtures for simpler ones, or edit our library fixture to remove the radius (not as easy as it sounds, due to its complex construction).



Thanks to David Miller & Greg Diamond for their assistance.




Wednesday 25th February Event

February 13, 2015

To kick off the RUGwell year, we are at Wellington City Council;

Public Library, 65 Victoria St
On entering Library foyer, turn left to lifts.
Take lift to Mezzanine floor.
On exiting lifts turn right to meeting room.

Google Map

5.00pm – for a 6pm start
Finishing at 7:30pm

RSVP to Grant

First presentation:

Use of BIM Models by Wellington City Council Strategic Asset Management Planning Team (SAMP)
by Tane Dunne (Team Leader Built & Green), Matt Cantwell & Max Drake
Suitable for all levels of expertise, Full Revit & LT
Wellington City Council uses an Asset Management Information System (AMIS) to forecast budget requirements for its building maintenance and upgrade programmes.
There is currently a process to back-capture existing building stock data and WCC is looking to use BIM to automate this process and feed it into their AMIS.  Benefits include; building information available very soon after practical completion, ability to forecast maintenance tasks against specific building elements, and access to warrantee and guarantee information from a single source.
WCC is building a tool that can be adapted and will allow a 2 way link between Revit & SPM so that SPM asset condition can be transferred and shown graphically in the model.
Second Presentation:
Revit for Digital Fabrication
Grant Douglas – Makers of Architecture (MoA)
Suitable for all levels of expertise, Full Revit
Makers of Architecture are a new architectural company that are interested in the principals of making. Along with their interdependent company, Makers Fabrication, MoA are interested in digital fabrication, where data rich digital models are optimised to output data for CNC fabrication and assembly. MoA are using Autodesk Revit and Rhino as their main documentation and manufacturing tools. They are also using visual programming tools such as Dynamo and Grasshopper.
This presentation will show a brief insight into the design opportunities, efficiencies and thinking MoA use and are continuing to research and develop.

Committee update:
The committee will share with you waht we have planned for the year including the proposed Wellington BIM Unconference

Followed by:
Questions, answers, tips and tricks
Come armed with any questions you have or quick tips you want to share.

**Situations Wanted**
We are happy to advertise in the newsletter & blog, any of our members looking for a job in the realm of Wellington BIM. We won’t do situations vacant. Contact any one of the committee members with your Linked-in profile.

Steven Tanner – Structural designer moving to Wellington
Many thanks to Wellington City Council Strategic Asset Management Planning Team who are kindly hosting and sponsoring this event

Looking forward to seeing you there.

Grant Taylor, Kevin Thickett & Michael Warwick



Beginners Guide to Python in Autodesk Revit

February 3, 2015

If you’re interested in automating tasks in Revit, have a look at this article from our friends at Productspec.


If you have a go, or are already using this, we’d be very keen to hear about your experiences.

Wellington BIM Unconference

February 3, 2015

Hi everyone,

Your committee has been discussing the idea of holding BIM “Unconference” in the second half of 2015 & would like some feedback as to whether this is a good idea.

An unconference works on the theory that the networking and discussions that take place out of class time can be as valuable as the structured presentations & should therefore be brought front and centre. Each session is a lightly facilitated themed discussion – with documented output. Ideally the output would be a proposed solution to a problem, suggested common work practices, and such like. The output from all sessions is shared with all registered participants at the end of the conference.

From Wikipedia;

Typically at an unconference, the agenda is created by the attendees at the beginning of the meeting. Anyone who wants to initiate a discussion on a topic can claim a time and a space. Unconferences typically feature open discussions rather than having a single speaker at the front of the room giving a talk, although any format is permitted. This form of conference is particularly useful when the attendees generally have a high level of expertise or knowledge in the field the conference convenes to discuss.

and more here;

Here are some thoughts from me about how the Wellington BIM Unconference might work.

We are completely open to suggestions and alternatives at this stage.


A single week day around August/September.


All participants would need to attend an early (breakfast?) session in order to set the agenda and session times. This would be done using Open Space Technology principles (see the link above). Participants could then assign themselves to some, all, or no sessions as they see fit. Local participants can then go to work if they wish, returning only for those sessions they see value in attending.

Target Audience;

Primarily focused on the greater Wellington region, although participants from further afield would be welcome to bring their expertise. We hope to reach beyond our core RUGWell attendees and attract users of other softwares, along with people who work (or wrestle) with BIM outside of the design office. This could include contractors, sub-contractors, facilities managers, and property owners.

Ideally we will get the whole supply chain, from concept to operation, talking about how we can work together to use BIM effectively in our local market.


The topics discussed will ultimately be decided on the day feel free to suggest some potential topics in the comments to get people thinking.


We aim to run each RUGWell meeting as a stand alone cost neutral event, and would hope to to do the same with a Wellington BIM Unconference. Each session would either be free, or have a small venue charge. Please let us know what you think of this. Also, would you be prepared to pay to have the opening session at a nice breakfast venue?


In order to keep cost to a minimum we would likely accept sponsorship, feel free to contact your favorite committee member (or me) to discuss this further.

Final comment;

How many times did I say participant? The key to a successful unconference is participation!