What we do is have two types of blocks, one is a graphic block, (note
symbol) that is scaled by the plote scale and dimensioned equipment blocks
that are inserted at a scale of 1. But we also have one set of metric blocks
and one set of imperial blocks. They are the same except the base unit is
25mm for metric and 1 inch for imperial. The block names are the same except
that the imperial blocks begin with " I " and the metric blocks begin with "
M ". We use a startup lisp that reads the dimscale setting of a drawing and
if it is a metric scale, 1:50, 1:100, etc , it sets a mpfx lisp variable to
" M " and if the dimscale is imperial , 1"= 48'0" ( 1:48) then the mpfx is "
I ". A little menu lisp strcats the M or I to the block name with the path
and Bob's your uncle.
Dave Alexander