Hi,
you missunderstood one part of my answer:
If you run Autocad or LT and the files are for these programs
>>"Then what would you recommend to use as a metric template?"
AcadIso.dwt is the right one!
Start a new drawing based on AcadIso.dwt and change INSUNITS to Meter(6)
{Don't start the undocumented command -dwgunits}
Insunits is the Unit for this DWG.
For internal steps like Insert or Xref, this is the important setting.
>>"the drawing is now set to 3 (mm)"
No, there is NO aec setting inside the new file (not 3 or 1, NO setting)
But if you start this command, Autocad need a value as default and in case of a metric setting(measurement=1), the default scale for an aec setting is 3 and for an imperial it is 1.
If don't know why you are using this command, dont use it.
(Starting this command adds tge aec stuff to this file)
>>"i thought it was a simple environment that was setup as metric."
And it is! But the undocumented command you used add the aec deg setting into the file.
>>"---- i am not inserting... i am wblocking.... "
I know, but the question is WHY are you intresting in DWGUNITS,
it is not common for AutoCAD use.
>>" but trying to learn the system and jargon.."
For new files: Start with acadiso.dwt, set insunits, thats it.
For files you allready added an aec dwg setup and to get rid of an aec dwg setup, run -ExportToAutoCAD