[PerFnurt]

By the way, you've re-triggered my interest for it and I'll look into what could be done by having a totally separate (ie not AC3D plugin) interface to AC3D through sockets or tcl.

Main challenge is to design an object model so one could do stuff like (pesudo-code):

ac3d = CreateObject("ac3dCOMProxy")
ac3d.Select(ac3d.GetObjectByName("cylinder"))
ac3d.Selection.Move(10,20,30)
ac3d.Selection.Rotate(...)

obj = ac3d.GetObjectByPos(200,10,23)
obj.Move(10,-20,30)
obj.Scale(1,1,10)
vertArr = obj.GetVertices();
i=0
for each v in vertArr
v.y = SomeFuncComputingY(i)
i = i + 1
next

.
.
.

etc