Footnotes from Chapter 6     Footnote 1, pg. 115 An interesting new technology for balancing a running spindle is given by Chres Koepfer, "Tool Balancing on the Fly - It's Coming!," Modern Machine Shop, October 1996, 54-60.       Find Modern Machine Shop Magazine (MMS) articles:     1.) "Tool Balancing On The Fly - It's Coming!" by Chris Koepfer     2.) "Should You Balance Your Tools?" by Peter Zelinsky     3.) "High Speed Machining: Die/Mold" by Mark Albert       Please visit often, more content coming for the CNC links and exercises.