Dean, Why do you believe this? Is there a purpose to using the metric system over another option? Is one superior? I would think whatever is native to the creator would be fine. Also doesnt the Mach3 and or GCode convert it to the units the machine is configured in? It might be a metric world. On the other hand only 2-5% of the people control most of the wealth, maybe I dont want to run with the masses? ;-) I was not implying one group has more money based on their units of measure.