Shane Wells sent us a tip on controlling a drawing's linetype scale.
"Ever experience linetype scales that won’t cooperate in-between model space and layout/paper space? For instance, your hidden lines look great in model space but when you switch to paper space they appear to be continuous line! Frustrating, I know. Try this.
1. "While in model space invoke the Ltscale system variable by typing it in at the command line and pressing enter; for a value enter 1.
2. "In layout/paper space invoke the Psltscale system variable by typing it into the command line also and press enter; for a value type 0. This will always correct your issues if your drawing properties are drawn in model space with a Ltscale of 1. (Can be verified by selecting a drawing segment such as line, arc, etc. and checking the Ltscale in its properties dialog box.)
"NOTE: You may have to refresh your viewports to show the change."
Notes from Cadalyst Tip Patrol: Before paper space all we had to draw in was model space. As the scale of your drawing changed, so did your line type scale. With paper space that variable can be more constant and easier to manage. If Psltscale is set to 0, the line type scale for each object is controlled by the Ltscale value. If Psltscale is set to 1 then the line type scale for each object is scaled according to the paper space drawing units. If you have multiple viewports, at different scales, then you will get different results according to which Psltscale setting you are using. If it is set to 0 then each dash will be sized according to the Ltscale. If Psltscale is set to 1, then the object's line types will be scaled by each viewport's units so that each dash in each viewport will be the same length. You may need to alter this setting to get the result you want.