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Posted by frankdyer on 10-12-2004 7:42 AM
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I am trying to create a custom grid reference/title block for our designs. I need to use A3 size paper (420mm x 297mm) and I need 9mm grid width. The Design template allows me to use 9mm but when I create a new design to use this the 9mm is changed to 8.89mm.
This causes a problem with the "on grid" title block I am using since the adjusted numbers fall off grid and the block does not line up with the grid.
I looked through the help files (very poor help) and even here... no luck yet.
Any ideas?
Frank
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Posted by frankdyer on 10-12-2004 7:44 AM
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Sorry...
Using Orcad Capture v10.0.0.s006 on Win2K platform.
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Posted by cseltzer on 10-14-2004 4:54 AM
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Frank,
Orcad was designed to use English units of measure. Orcad has a metric setting which translates the metric settings to English as it works, which is why it doesn't always behave as expected in metric mode. I don't know of any work around for the problem you are seeing.
Chris Seltzer
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Posted by DJ_Dream on 11-02-2004 6:34 AM
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Frank ,
I'm not sure but I think that I've read that SP2 fixes this issue .
Please check the improvements in SP2 (or SP1) in their Release Note .
DJD
Orcad and EDA Forum
http://www.edafastsolutions.com/forum/
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Posted by rmann on 11-05-2004 4:58 PM
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Something I don't understand. How are you able to determine that the pitch of your grid is 8.89mm rather than 9.00? That's a difference of only about 1%. Inside the bounds of Capture the geometric scale is only virtual, and you can't shove a physical ruler of caliper inside there to make a measurement. Maybe you're making some measurement on a hardcopy printout, but I don't see why a 1% difference couldn't be some artifact in the printing system, after it leaves Capture. Am I missing something?
Leaving that aside, you say that your title block doesn't fall on-grid. I don't know how you build your TB, but try this: Build it so that its visual size is an integer multiple of your grid units, regardless of whether those units be 8.89mm or 9.00mm. I say "visual" size, not just the extent of the dotted-line bounding box. If you can do that, then I guarantee your title block will fall "on grid". Or else I don't understand the problem, not being familiar with working in metric.
Maybe what I'm missing is that there might be a difference in scale between the Part/Symbol Editor and the Schematic Page Editor. Is that what's going on here, so that when you build the title block you're working with a different size "millimeter" than that of the schematic page? Help me out.
-Richard Mann
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Posted by frankdyer on 11-08-2004 8:22 AM
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>How are you able to determine that the pitch of your grid is 8.89mm rather than 9.00?
My design template shows 9.00, but each new sheet created shows actual page size of 8.89 and not 9.00
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Posted by rmann on 11-08-2004 12:21 PM
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To further show my density, where are reading reading this "actual page size of 8.89"? And what does "actual page size" have to do with the pitch of your snap grid?
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On 11/08/2004 8:22:47 AM, frankdyer wrote:
>How are you able to determine that the pitch of your grid is 8.89mm rather than 9.00? My design template shows 9.00, but each new sheet created shows actual page size of 8.89 and not 9.00
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Posted by frankdyer on 11-08-2004 12:31 PM
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>where are reading reading this "actual page size of 8.89"? And what does "actual page size" have to do with the pitch of your snap grid?
I set my Grid width in the design template to be 9 mm. When I create a new design and look at schematic page properties, the grid reference is not 9 but instead 8.89.
I have worked around this already, but it took a while to see that things were not lining up because of this. I kept calulating based on 9mm grids on each side of the page.... but Capture rounds in inches and automatically "adjusts" my 9.00mm setting to 8.89m.
It would have been nice to see a warning.
thanks for all the help.
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