Scale from meters to millimeters

[Siberian]

I recieved a drawing from an architect, but the drawings measurments were in meters, and I'm oh so used to millimeters. Let's say a line is 5000 mm in real life. On the drawing I would measure it to just 5. I didn't think it was a problem, I could just scale it up, but this resulted in a performance-drop making the drawing almost impossible to work with. Can I solve it some other way?

Also, many lines in the drawing a clearly quite thick, but changing the thickness doesn't seem to have any effect, I can't get it to show the change in thickness no matter what. And yes, the LWT button is on.

[CarlB]

Scaling by 1000 to give millimeters versus meters should have insignificant or no affect on performance. Must be some other reason.

....well then turn LWT off

maybe you need to set 'shademode' to '2d'?

[Siberian]

The lineweight doesn't change, regardless of LWT. But that's a minor problem. I managed to fix the performance bit by exploding the drawing once.

[wherestheanykey]

Try changing the overall LTSCALE. If there are many linetypes it could effect the drawing performance.

[Ferdinand]

Format - Units - ...

[iain9876]

best way is to just go ->command,-> scale -> select your objects (remember to have all your layers on and unfrozen), -> specify your basepoint as 0,0
->scalefactor: would be 1000
thats you to millimetres....

you may need to adjust your dimension style to mm so everything is back to mm.

this as suggested above......shouldnt really affect line thicknesses, or performance....

thats it!