Bolt Circle

Boltcircle A bolt circle pattern is the diagram that indicates a series of holes drilled in a polar fashion around a point that are equally spaced both by degrees and by the radius indicating the centers of each drilled hole.  This is used quite frequently by industry as a means of fastening housings over shafts, gear boxes, etc.  For a CNC machinist or programmer to be able to program the milling machine to drill this series of holes, that machinist will have to have the X and Y center locations for each hole.  This location point is essential because the machines that drill these holes base the location upon the center of the drill.   Contributed by: Debbie Barnhouse.

Lesson Plan: SolidWorks_Lesson_BOLT_CIRCLE_PATTERN    

Part0icon Sample Parts: BOLTCIRCLE_1

Marie Planchard

Marie Planchard

Senior Director, Early Engagement, 3DEXPERIENCE Works at Dassault Systemes
Marie Planchard is an education and engineering advocate. As Senior Director of Education & Early Engagement, SOLIDWORKS, she is responsible for global development of content and social outreach for the 3DEXPERIENCE Works products across all levels of learning including educational institutions, Fab Labs, and entrepreneurship.
Marie Planchard