So I was looking at some rotary encoders and a thought occurred to me that maybe I could make a level with a digital display for checking lathe bed twist. The highest number of pulses per revolution available was 40,000. That works out to only .009 degrees. Seems pretty small huh? But .009 degrees is 36 seconds! That works out to .0016" in 10 inches. My fairly inexpensive precision level shows .0005" in ten inches. That's ten seconds resolution. And I know it's accurate 'cause I checked it with gauge blocks. I know, overkill, a feeler gauge would be good enough. I guess I'll stick with the level and just watch the analog bubble display. Eric
- posted
7 years ago