Comments on: Common Sense CAD – Part 4 http://www.caddmanager.com/CMB/2007/08/common-sense-cad-part-4/ Practical, proven insight into CADD Management from Mark W. Kiker Wed, 08 Feb 2012 05:07:09 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Glen Sullivan http://www.caddmanager.com/CMB/2007/08/common-sense-cad-part-4/comment-page-1/#comment-1450 Glen Sullivan Tue, 16 Dec 2008 16:15:28 +0000 http://www.caddmanager.com/CMB/2007/08/08/common-sense-cad-part-4/#comment-1450 A couple of things that I have done related to what has been discussed here. I have started to develop my title blocks or borders as mentioned above in layout space with the layout setup to my default production machine and desired paper size. This allows me to account for the proper margins of the plotter I intend to plot from. Once I have created all the line work, text, attributes and so forth I create the actual file using the Wblock command and the 0,0 origin of the layout. What this does for me is allow me to then externally reference this file into my sheet using the same 0,0 origin. The only down side to this is that this file is specific to a specific machine. If that is a problem you can still place a rectangle in the file to represent the edge of the sheet. When the title block is place this line will fall outside the printable area and should not be a problem. As far as LTscale goes I disagree with your setting of 1. As a rule of thumb I have always set the ltscale to 1/2 that of the scale factor. I have seen many references that agree with this point of view, and I do know that this produces linetypes that are half the size of the measurement in the definition file, but this is the look we have always worked with. With this in mind, my sheet files always have the ltscale set to .5, which is 1/2 of the 1 scale factor of the sheet. PSLTSCALE allows the scale of the viewport to set the linetype scale and setting this to 1 is the only way to have viewports with different scale to still show the correct ltscale no matter what it is set to. A couple of things that I have done related to what has been discussed here. I have started to develop my title blocks or borders as mentioned above in layout space with the layout setup to my default production machine and desired paper size. This allows me to account for the proper margins of the plotter I intend to plot from. Once I have created all the line work, text, attributes and so forth I create the actual file using the Wblock command and the 0,0 origin of the layout. What this does for me is allow me to then externally reference this file into my sheet using the same 0,0 origin.

The only down side to this is that this file is specific to a specific machine. If that is a problem you can still place a rectangle in the file to represent the edge of the sheet. When the title block is place this line will fall outside the printable area and should not be a problem.

As far as LTscale goes I disagree with your setting of 1. As a rule of thumb I have always set the ltscale to 1/2 that of the scale factor. I have seen many references that agree with this point of view, and I do know that this produces linetypes that are half the size of the measurement in the definition file, but this is the look we have always worked with. With this in mind, my sheet files always have the ltscale set to .5, which is 1/2 of the 1 scale factor of the sheet.

PSLTSCALE allows the scale of the viewport to set the linetype scale and setting this to 1 is the only way to have viewports with different scale to still show the correct ltscale no matter what it is set to.

]]> By: Architek01 http://www.caddmanager.com/CMB/2007/08/common-sense-cad-part-4/comment-page-1/#comment-139 Architek01 Fri, 17 Aug 2007 19:14:00 +0000 http://www.caddmanager.com/CMB/2007/08/08/common-sense-cad-part-4/#comment-139 sorry, i gotta dissagree with the giy above me. LTscale should always be set to 1 and psltscale should always be set to 1. If you want to to see the proper linetypes in model space, use VPMAX and VPMIN. sorry, i gotta dissagree with the giy above me. LTscale should always be set to 1 and psltscale should always be set to 1. If you want to to see the proper linetypes in model space, use VPMAX and VPMIN.

]]> By: Skyler Mills http://www.caddmanager.com/CMB/2007/08/common-sense-cad-part-4/comment-page-1/#comment-138 Skyler Mills Fri, 17 Aug 2007 11:37:00 +0000 http://www.caddmanager.com/CMB/2007/08/08/common-sense-cad-part-4/#comment-138 Great post as usual, Mark.<br/><br/>Just one comment: leave LTSCALE at the plot scale (for example 40 for 1"=40'). This way, when working in full model space (as we all know we should) linetypes will appear correctly. If it's set to 1, linetypes will usually appear too dense. Also, PSLTSCALE should be set to 0, unless there are paper space viewports with differing scales. In that case, yes, set LTSCALE and PSLTSCALE to 1, so all viewports' linetypes appear normally.<br/><br/>Thanks, and have a great weekend! Great post as usual, Mark.

Just one comment: leave LTSCALE at the plot scale (for example 40 for 1″=40′). This way, when working in full model space (as we all know we should) linetypes will appear correctly. If it’s set to 1, linetypes will usually appear too dense. Also, PSLTSCALE should be set to 0, unless there are paper space viewports with differing scales. In that case, yes, set LTSCALE and PSLTSCALE to 1, so all viewports’ linetypes appear normally.

Thanks, and have a great weekend!

]]> By: CADDManager http://www.caddmanager.com/CMB/2007/08/common-sense-cad-part-4/comment-page-1/#comment-137 CADDManager Fri, 10 Aug 2007 21:04:00 +0000 http://www.caddmanager.com/CMB/2007/08/08/common-sense-cad-part-4/#comment-137 Also - be sure to start creating your Title Block at 0,0,0 in Model Space of the border file.<br/><br/>Many thanks to Joe R. for catching that one. Also – be sure to start creating your Title Block at 0,0,0 in Model Space of the border file.

Many thanks to Joe R. for catching that one.

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