face: se refiere a cada fase, faceta, o fachada de un dibujo tridimensional

draft: es que es un borrador o un boceto para cambiar esas "facetas"

Hay muchas maneras para traducirlo
borrador para facetas
boceto de fases and so on... las posiblidades son muchas

Ve al siguiente link y lee la siguiente información para tomar tu decisión... suerte

http://www.masterg.com/newsletter/winter2000/tips_mech-deskt...

Face Draft
In Mechanical Desktop 2.0 shelling was added that allowed for thin walled parts. With
shelling, the faces were offset and parallel to the original face. Now with face draft you
can change the shelled faces so that they have a different angle. A face draft can be
applied to shelled parts or any particular face. A split line can be used for the edge to
base the face draft from. After a face exists on a part, you can apply a face draft. Issue
the AMFACEDRAFT command from the Part Modeling toolbar or right click in the
browser and select Face Draft from the pop up menu header name Place Features. A
Face Draft dialog box will appear. Make any changes in the dialog box as necessary
and then select a draft plane and then select the faces to draft. A cone shaped icon will
appear in the middle of the draft plane as shown in Figure 12. This icon is showing that
the face(s) below the plane will draft outward and the face(s) above the plane will draft
inward as the cone represents. The face draft is a feature and can be edited and
deleted. Adjacent faces can have different draft angles.