Hi everyone, 

I´ve been working with Autocad for a while and the Mac version for a couple of years. I´ve always worked in centimeters units but now i´m working in someone else's project which is a mess (lots of drawing units for example). I´ve always scaled drawings: z - s - 1000/100xp  (1:100 for example) but now that same factor doesn't work.  So I realized I really don't know much about Autocad...

How does the xp factor scale work? Does it matter the working unit I use? 1000/100xp works with cm but not for mt nor mm ? What is the logic of it? Maybe it depends o the configuration of the Drawing ?... I tried to Edit the Scale List because non of the suggested scales worked out. 

Maybe its a very basic knowledge but it would be really helpful if someone could explain it with a very basic language in order to get it right! 

Thanks!

AZ