Originally Posted by
Wanderer
As a client, I've actually seen this done intentionally. They'll run a program on their CAD file that skews everything just slightly. Not badly enough that it would be visibly off on the printed drawings, but so much so that you have to work pretty hard to re-use the CAD file (which, btw was in our specs, so ergo quotes, so we paid for a workable cad file that was intentionally damaged for 'intellectual property' reasons... I know IP is a thing, but, seriously, you're renovating a 150 yo building and I spec'd cad files as a deliverable, so get over yourselves).