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Nope P6 does not import 3DMF, only 3MF. Downloaded the free quickdraw 3d program, but when I upload it to DWLite, it wont let me secelt it to export it to DXF

The fact that P6 doesn't import it may show how the format has become obsolete.

You lost me after "DWLite"...

Perhaps you can find an older version of a 3d modeler, that does (still) import 3dmf.

(: