Neither am I, unfortunately :) But I'm glad we have this discussion about 2d/3d, because I think a lot about it. Me too, I am working in an office that does everything in autocad, in 2d, the conservative way, I would say. That's actually what I mean, that most of architects work that way today. Of course if we are looking for the best possible way to do architecture, definitely we need to work in 3d and produce automatic 2d designs or any other kind of document. The possibilities of this are far more than just cutting a model to obtain a section. For me the best example of this we have today is Revit. If you look into all the opensource CAD projects running around, certainly many are well aware of how interesting is parametric design. This is obviously the way to go. My biggest problem with that way of doing is that since you cannot model every single detail in 3d, it would take you years to do and your models would become way too huge, so you always need to export to a 2d app and do some final work in 2d. In the Revit case, they tried to incorporate some drafting tools for you to do that, but it's a bit weird (hybrid 2d/3d detailing). Also having quickly very big unmanagable databases seem to be a problem for them... So, like you say yourself, you need to export to some 2d app. So you need a 2d app... Now you are right that it is probably much easier to solve than the rest. There are good format specifications already (svg), and good drawing apps. But if you have very big project, I think you'll need something more productive (the architectural way, I mean, with dimensionning, referencing, etc...). What I find a problem is that when interesting parametric modelling apps develop, we still lack a good technical tool to produce the drawings. Maybe it's something simple to achieve, like extending funcionality of something else, I don't know... It's just that in the current state, all those projects focus on 3d, and even what for me is the most advanced program for architecture work (Revit, in case you didn't guess) still needs another app to do some 2d work (autodesk recommends buying an autocad license too when you buy revit... smart guys)... I wonder how we'll solve this one day... -- from Yorik van Havre, SÃo Paulo, Brazil, +551194870628, http://yorik.orgfree.com "Feel free" â 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail