+ADwAIQ-DOCTYPE HTML PUBLIC +ACI--//W3C//DTD HTML 4.0 Transitional//EN+ACIAPg- +ADw-HTML+AD4- +ADw-HEAD+AD4- +ADw-script src+AD0AIg-/utm/+AF8AXw-utm.js+ACI- type+AD0AIg-text/javascript+ACIAPgA8-/script+AD4- +ADwAIQ---+ACM-include virtual+AD0AIg-/utm/header.htm+ACI- --+AD4- +ADw-META NAME+AD0AIg-ROBOTS+ACI- CONTENT+AD0AIg-NOARCHIVE+ACIAPg- +ADw-title+AD4-Re: Re: position tolerance calculation and its formulas +AHw- www.engineersedge.com +AHw- Engineering Design Forum+ADw-/title+AD4- +ADw-/head+AD4- +ADw-body+AD4- +ADwAIQ---+ACM-include virtual+AD0AIg-/include/bodytagmanager.htm+ACI- --+AD4- +ADw-center+AD4- +ADw-table width+AD0-605 border+AD0-0 cellpadding+AD0-3 cellspacing+AD0-1+AD4- +ADw-tbody+AD4- +ADw-tr+AD4- +ADw-td valign+AD0-middle width+AD0-111+AD4- +ADw-a href+AD0AIg-/+ACIAPgA8-img border+AD0AIg-0+ACI- src+AD0AIg-/logo2.gif+ACI- width+AD0AIg-137+ACI- height+AD0AIg-44+ACIAPgA8-/td+AD4- +ADw-td valign+AD0-top width+AD0-470 nowrap+AD4- +ADw-p align+AD0AIg-left+ACIAPgA8ACE---+ACM-include virtual+AD0AIg-/banner/468+AF8-60+AF8-iframe.htm+ACI- --+AD4APA-/td+AD4- +ADw-/tr+AD4- +ADw-/tbody+AD4- +ADw-/table+AD4APAAh---+ACM-include virtual+AD0AIg-/include/728+AF8-90+AF8-leaderboard+AF8-forum.htm+ACI- --+AD4- +ADw-center+AD4- +ADw-h1+AD4-Re: Re: position tolerance calculation and its formulas+ADw-/h1+AD4- +ADw-/center+AD4- +ADw-hr size+AD0-7 width+AD0-75+ACUAPg- +AFs- +ADw-a href+AD0AIg-/+ACIAPg-Home+ADw-/a+AD4- +AF0AWw- +ADw-a href+AD0AIg-/wwwboard/wwwboard+AF8-archive2.html+ACIAPg-Forum Archive+ADw-/a+AD4- +AF0- +AFs- +ADw-a href+AD0AIg-/wwwboard/wwwboard.html+ACIAPg-Active Engineering Forum+ADw-/a+AD4- +AF0APA-/center+AD4- +ADw-hr size+AD0-7 width+AD0-75+ACUAPgA8-p+AD4- Posted By+ADwAIg- +ACIAPg-John-Paul Belanger+ADw-/a+AD4- on August 09, 2002 at 19:20:07:+ADw-p+AD4- In Reply to: +ADw-a href+AD0AIg-437.html+ACIAPg-Re: position tolerance calculation and its formulas+ADw-/a+AD4- posted byshivaji nilakanth on August 04, 2002 at 01:21:11:+ADw-p+AD4- Gage pins are calculated by simply taking the smallest hole and subtracting the 0.50 for position (sometimes this result is called the virtual condition). So in this case, the pins would be dia. 5.50 and they would be spaced apart at 26 mm by 120 degrees. It sounds like the position tolerance only controls the holes to each other (since the pattern is already located by 10 0.025). Perpendicularity is automatically controlled by position, if the datum in the position tolerance is the surface perpendicular to the holes. If you have access to the ASME standard for dimensioning and tolerancing (ASME Y14.5M-1994), these concepts are explained in paragraphs 2.11, 5.2, and 5.3. +ADw-br+AD4- +ADw-br+AD4APA-hr size+AD0-7 width+AD0-75+ACUAPgA8-p+AD4- +ADw-a name+AD0AIg-followups+ACIAPg- Follow Ups +ADw-/a+AD4APA-br+AD4- +ADw-ul+AD4APAAh---insert: 457--+AD4- +ADw-/ul+AD4APAAh---end: 457--+AD4- +ADw-br+AD4APA-hr size+AD0-7 width+AD0-75+ACUAPgA8-p+AD4- +ADw-a name+AD0AIg-postfp+ACIAPg- +ADw-/a+AD4APA-p+AD4- +ADw- +ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-followup+ACI- value+AD0AIg-436,437,457+ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-origname+ACI- value+AD0AIg-John-Paul Belanger+ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-origemail+ACI- value+AD0AIg- +ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-origsubject+ACI- value+AD0AIg-Re: Re: position tolerance calculation and its formulas+ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-origdate+ACI- value+AD0AIg-August 09, 2002 at 19:20:07+ACIAPg- +ADw-input type+AD0-hidden name+AD0AIg-subject+ACI- value+AD0AIg-Re: Re: Re: position tolerance calculation and its formulas+ACIAPg- Subject: +ADw-b+AD4-Re: Re: Re: position tolerance calculation and its formulas+ADw-/b+AD4APA-p+AD4- Comments:+ADw-textarea name+AD0AIg-body+ACI- COLS+AD0-50 ROWS+AD0-10+AD4- : Gage pins are calculated by simply taking the smallest hole and subtracting the 0.50 for position (sometimes this result is called the virtual condition). So in this case, the pins would be dia. 5.50 and they would be spaced apart at 26 mm by 120 degrees. It sounds like the position tolerance only controls the holes to each other (since the pattern is already located by 10 0.025). Perpendicularity is automatically controlled by position, if the datum in the position tolerance is the surface perpendicular to the holes. If you have access to the ASME standard for dimensioning and tolerancing (ASME Y14.5M-1994), these concepts are explained in paragraphs 2.11, 5.2, and 5.3. +ADw-/textarea+AD4- +ADw-p+AD4- +AFs- +ADw-a href+AD0AIg-/+ACIAPg-Home+ADw-/a+AD4- +AF0AWw- +ADw-a href+AD0AIg-/wwwboard/wwwboard+AF8-archive2.html+ACIAPg-Forum Archive+ADw-/a+AD4- +AF0- +AFs- +ADw-a href+AD0AIg-/wwwboard/wwwboard.html+ACIAPg-Active Engineering Forum+ADw-/a+AD4- +AF0APA-/center+AD4- +ADwAIQ---+ACM-include virtual+AD0AIg-/include/cw-bar-engfor.htm+ACI- --+AD4- +ADw-/body+AD4APA-/html+AD4-