Using LISP with AutoCAD Architecture and MEP

Occasionally, we still seem to get questions about using LISP with AutoCAD Architecture (ACA) and MEP (AME). ACA and AME dropped DXF/LISP support since ADT 2004. This blog post gives you a little bit of history and reasoning behind the decision.

As new people joins and they sometimes assume whatever AutoCAD supports will be automatically extended to verticals. Since it’s been a while since we had this discussion, I’m bringing up this topic for the sake of people who are new to AutoCAD community.

The hard fact is that LISP uses DXF code and ACA/MEP do not implement it. If you try to use LISP to access AEC objects, it simply does not return values…

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