Initial testing with the G84 Tap Cycle and Mach3: Using a floating tap holder from MariTool we were able to Tap ¼ 20 threads with almost no tuning to our system.
We disabled the dwell feature on the spindle start and stop and tested with foam core first, then plastic and finally the ½ plate of 6061
http://www.youtube.com/v/nQS2Q_aC_P4&hl=en&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1
Rock On Mach3 !
JH