topic Re: Duct Obstruction 27 object defaults to "Rise" in Libraries & objects

Duct Obstruction 27 object defaults to "Rise"

TLOTrike — Tue, 05 May 2026 08:58:25 GMT

I'm using ArchiCAD 28 Studio on Windows 11 and have modelled the ventilation ductwork for a house.

Everything works fine except for the Duct Obstruction 27 object always defaults to "Rise" even after you select "Drop" anyone know of a fix?

Only thing I can think of is convert it to a morph and flip it over but I would prefer a fix to the GDL code if possible.

Re: Duct Obstruction 27 object defaults to "Rise"

Laszlo Nagy — Fri, 15 May 2026 15:22:10 GMT

If this issue does not resolve, please report it to your local reseller.

Re: Duct Obstruction 27 object defaults to "Rise"

Barry Kelly — Sun, 17 May 2026 01:53:18 GMT

@TLOTrike

You mention Archicad Studio.

Is that duct obstruction object a MEP object?

If so MEP does not work in the Studio version of the software as far as I know.

I believe you can see it, but you can't manipulate it.

Barry.

Re: Duct Obstruction 27 object defaults to "Rise"

Graeme — Mon, 18 May 2026 14:38:34 GMT

MEP works in AC28 Studio. It doesn't work in AC29 Studio, sadly. They cruelly teased us with it in AC28 and took it a way again in AC29 is another way of looking at it 🙂

As I couldn't get it to behave so I resorted to converting it to a morph and flipped it over that way.

Re: Duct Obstruction 27 object defaults to "Rise"

Graeme — Mon, 18 May 2026 14:36:56 GMT

Laszlo, I referred it onto the reseller. They came back its been fixed in AC29 so it won't get fixed most likely in AC28