CNC Feeds and Speeds Entry Log book Use our CNC Project journal to keep track of the methods and variables that work and don't work for your CNC Machine. For each Project entry page, there are spaces to markdown Material used, End mill, Feed Rate, Plunge Rate, Depth of Cut, Stepover, RPM, Coolant and more. Keep notes of how successful your results are so you can learn to be a better machinist and maintain quality control...