PCB Designers, What were/are the motivations for putting the center point (0,0) of a thru-hole footprint at pin #1 instead of the body center like an SMD? Do the original reasons still exist today? Thank you, Kevin L. Seaman OrCAD CIS & Allegro PCB Library Liaison Sr. Staff PCB Layout Engineer Broadcom Corp. Irvine, CA (949) 926-5656 (ext. 65656) --------------------------------------------------------------------------------- DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF DesignerCouncil. To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ---------------------------------------------------------------------------------