It’s fairly common to find machines that have multiple spindle options available. I don’t mean that you can specify multiple options, but that there are actual multiple options delivered with the machine.A very simple example would be multiple pulley ratios. More exotic would be sub-spindles, for example a high-speed auxiliary spindle or speeder on a mill.

  You can set up a companion spindle with our Horizontal Spindle Arm Mount for milling in the XZ (G18) or YZ (G19) plane.  This can be a great technique for doing light milling on the end of a very long workpiece.  In this episode of Tormach Fab Lab, Mike C. demonstrates how to get this setup right.