Would really love to take the minimill, and expand it a little, but make and use it manually. Any ideas, especially concerning where I could obtain knobs that have Imperial (inch) graduation markings, would be most helpful. Thanks and God Bless, Bill DeSilvey
You could always make your own if you can't find something commercially available. Cut the right size knob and then scribe it or wrap it with SM46WRL 1/2" x 6' Measure Stix: Tape Measures: Amazon.com: Industrial & Scientific Main issue is you will need screws and nut blocks to match the demarcations on the knob.
check dumpsterCNC - anti-backlash solutions for home and industrial linear motion for the nuts and McMaster-Carr for the screws.