I'm affraid that I think David Laver is right with his explanation of "one
off".
When doing assembley drawings during the design process, the parts on teh
drawing are numbered (say 1 to 100). A list (parts list) is produced which
is formatted
Number Part number No Off Description
1 18B-42359 1 Cylinder Head casting
2 865-134 4 Inlet Valves
etc
The No Off refers to the number to be made "off" the individual part
drawing (refered to by the part number).
At least this is what I teach our Mechanical Engineering degree
students!!!
Geraint
PS AS for "frame off", I had never heard of it until it was mentioned on
this list. Must mean Body Off, since it is very dificult to take the frame
(read chassis) off a car without taking it entirely to bits.
|