【转帖】spotface

yang686526

spotface
how do you call a "spotface" on the field of drawing.?
just call out the diameter and depth.
chris
systems analyst, i.s.
solidworks/pdmworks 05
autocad 06
on the drawing it is called out as "sf" (sf dia .xx).
  a spotface does not always require a depth.  if it is on an uneven surface, the depth defaults to the minimum required to achieve a full diameter.
  
here's an update, now that i have the references at hand.
while "sf" is a legitimate abbreviation for spotface,
the drawing callout per y14.5 is the same as a counterbore callout, except that the depth may or may not be specified.  if it is not specified, it is the minimum depth to achieve the diameter.