I got a digital micrometer awhile back and was excited because finally I could get precise, accurate measurements off of objects. But I quickly discovered that almost anything I measured gave me varying dimensions. Whether that’s because the item was subtly irregular in shape, or I was imperceptibly angling the micrometer differently each time, I kept getting different numbers.
So, my question is what method is best for filtering out this noise in a consistent manner?
- Don’t worry about it and just randomly pick one of the numbers, it’ll be close enough.
- Average the numbers to get one that’s sort of close to all.
- Round up or down to the nearest 1/10, 1/100, or 1/1000 of an inch.
- Pick a close “idealized” number. Like 1.5 for 1.494.
I’m thinking of going with number 3. But then, round to what? 1/1000 inch is possible but I think it would get conflicts on two numbers rounding differently. Is 1/100 still too small? What is the standard in precision milling or 3D printing?
Note: I’m not using metric because I’m not wanting to convert everything back and forth and most of the items and props are already listed in inches.