Pad rotation is like the tutu of a ballerina flopping up and down as she bounces across the stage. (hmmm... maybe I could have thought of a better analogy?) anyway, Paul was discussing it here: http://www.pcb007.com/pages/columns.cgi?clmid=46&artid=71261&_pf_=1 animation here: http://www.pcb007.com/reed/reed_fig6.htm Jack . On Thu, 7 Oct 2010 08:28:18 -0400, Kenneth Wood <[log in to unmask]> wrote: >I would have to ask where the stress is coming from. > >(clip....) >Not sure about this "rotation" dealie though >Ken > --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/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 -----------------------------------------------------