Jun 12, 2003 · The center of a bolt circle has a nominal (basic) location and a tolerance zone. Is the location of each hole measured wrt to basic location, or the actual location? If GD&T is not …

Feb 11, 2005 · There are several ways to call out your bolt circle diameter. 1. You can show the hole wizard sketch and dimension it. I always add the text "BCD" to the dimension. 2. You can …

Dec 7, 2007 · This option will require you to specify the initial angle and bolt circle diameter. You can then pattern hole using the angle dimension. In your drawing, show all axis and the axis of …

Jul 14, 2003 · Applying the pitch circle dimension and the angle does not protect you if someone decides to "key" the bolt circle so that there is only one way to assemble the part, but applying …

Dec 6, 2005 · In my work, we also define hole patterns using a Bolt Circle or BC. To provide for this, we create & dimension the bolt circle, as a separate construction sketch, prior to inserting …

May 29, 2002 · I have created a bolt circle hole pattern by creating a "diameter" style hole and patterning it by the angle dimension. I would like to show the centerline that …

Jan 13, 2005 · Hi, Quick question. Imagine you have a square part with 2 holes. One hole is right on center and it is datum A. The other hole is drilled somewhere else, on the same face. It is …

Apr 12, 2003 · We make some parts with a pattern of holes on a 28-3/4 inch "bolt circle), dimensioned as shown in the attached image. There is no "tolerance block" in the drawing …

Jun 29, 2007 · BC is in the standard as bolt circle but not BCD (and no D isn’t the standard combination form for Diameter). You can also have a Pitch Circle, PC or a Pitch Diameter, PD …

May 5, 2003 · I am assuming that you want to use a circle for the centerline of a bolt pattern. If so, in a sketch, select the circle tool and draw a circle, while the "circle" command is …