By Mark Bos In today’s difficult economy, we are all trying to make parts faster and cheaper. Unfortunately, making parts faster is sometimes at odds with making them cheaper. I have learned from experience that sometimes a machine will consume less money if you slow it down a little and try to find the proverbial “sweet spot.” The fastest spindle speeds and the highest feed rates may not be the best way to run the machine. It may be difficult to convince your boss that this is true, but having real data to prove it can be helpful. Tooling costs…