Expert: Bill DeShawn - 12/22/2004

Question
Hey,
I have been playing around with Auto Cad but i can not figure out how to make dashed lines.  I tried AutoCad Help but that did not help me.  I am using AutoCad 2002.  I tried going into Linetype but thats not working.  Maybe im doing something Wrong i dont know.
                       John  

Answer
Line types work best as layer properties, and as layer property overrides.  For example you could create a layer called HIDDEN with HIDDEN linetype properties built into the layer.  The color can be controlled by layer, too.  The line has to be long enough so that according to the LTSCALE system variable, it will display as a hidden or dashed line type.  You can override the LTSCALE (Current Line type scale) or CELTYPE (Current line type) system variables by using the PROPERTIES dialog box or pallette when an object is selected with grips.  PICKFIRST has to be set to 1 in order to do that.  In most cases CELTYPE should be BYLAYER.  LTSCALE in architecture works pretty good at about 15 when plotting at 1/4" = 1'-0" (48).  Mechanical drawings depend on paper size and experience and your own judgement.  Your own judgement plays a big part in all drawings, really.  But it's good to develop a standard to go by and refer to as you create more and more drawings.  If you work for a company, they may have their standards already established.  You only need to watch for all the settings and draw like they do.  If you decide to get serious about AutoCAD (you know - stop playing around), take some real courses at your local community college or tech school.  It will do you more good than harm.

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Bill DeShawn
http://my.sterling.net/~bdeshawn