I probably should know this... but it's been awhile since I've had to deal with any mechanical / GD&T drafting.... got given a drawing today - something that had ben saved out of Inventor to a DWG file (a piece of sheet aluminum shaped into a cover panel). Two of the dimensions were inside an "oval" (actually two half circles with connecting lines..). It's an associative dimension - measuring the distance between two holes and of a cutout....
My question is - what sort of dimension is this? What does the oval represent? Looked on the web today - but couldn't find any reference to a dimensioning standard of that sort....
Martin