the goal here is to USE a CTB TO TURN a CADD FILE IN TO drawing with BLACK AND WHITE LINEs and have the same THICKNESSes THAT were specified in the ctb applied in cad to each color of the line.
to further simplify what i am talking about
lets say i printed a cad file back into a cad file use a ctb to assign thickness and possible different shade of gray
the end product is a drawing with white & gray lines that have been assigned the same thicknesses and screening they would have gotten if i had sent them to a printer.
For ex. i have a cad file and ctb i have acquired from someone else and i want to use their drawing as a background but i want to take all the color out of it. cause i am going to go back over it with my own colors and layers. i want my work to stand out,but i still want the background to have its original layers.
(side note :and yes i know you can lock the background as an xref and that will fade the background in model space but when it prints out it will still use my ctb to define the colors that were left in the background.) (sorry bout the caps i pasted it from google)