Aaron2004 Posted July 29, 2008 Share Posted July 29, 2008 Hey everybody, This is happening more and more to me....to the point of at least once a day. Look at the attached picture. I have a string of dimensions...but there is a random 1/8 inch thrown in there. the above dimension doesn't account for that. The only way I can fix it is by changing the precision of the bad dimension to 1/4. Why is it doing this so much to me:confused: And yes...the dimensions are all snapped together. Aaron Link to comment Share on other sites More sharing options...
Victor Erthal Posted July 29, 2008 Share Posted July 29, 2008 haven't worked on autocad in a while but in the old days i remember there was a global units precision setup. in autocad 12 you had to type ddunits and that would bring up the dialog where you could set that. Hope this helps. Link to comment Share on other sites More sharing options...
kevin3600 Posted July 29, 2008 Share Posted July 29, 2008 Hi Aaron, What precision are your units set to while drawing and dimensioning? I believe if you were to set your drawing unit precision to 1/16" and measured the distance of the lines you believe to be 2'-9" long, they would actually measure 2'-8 15/16" long. That 1/16" difference x 2 would equal the extra 1/8" - which will make you middle dimension 5'-5 1/8". The reason it shows up on the middle dimension of 5'-5 1/8" is because the primary units in your dimension style are likely set to 1/8" precision. They will not display the actual 2'-8 15/16" dimensions of the outside lines. --- a bit confusing - but start by changing the drawing units to 1/16" and measure those lines showing dimensioned at 2'-9". Let me know how it works out - Kevin Link to comment Share on other sites More sharing options...
Peter M. Gruhn Posted July 29, 2008 Share Posted July 29, 2008 Kevin's answer has the meat of the situation. I'll add: My general rule with students is if you have to mess with the dimension display then that is a sign that the drawing needs to be corrected. Except it looks like maybe these are dimensioning horizontal distances along a diagonal. In that case you'll never get good numbers. Should you be using aligned dimensions instead? Link to comment Share on other sites More sharing options...
Aaron2004 Posted July 31, 2008 Author Share Posted July 31, 2008 Kevin, that was it..thank you! Peter...I know it looks like it's dimensioning a diagonal....it's not though. It is a horizontal. The problem and solution both make sense. Link to comment Share on other sites More sharing options...
kevin3600 Posted July 31, 2008 Share Posted July 31, 2008 Good deal Aaron - glad I could help. Link to comment Share on other sites More sharing options...
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