Steve Maskery
Established Member
Although I started in feet and inches, I use metric almost entirely, although I agree that 30" is easier to visualise than, well, however many millimetres that is.
But as to the point about being comfortable with what you are used to, when I was making a lot more furniture than I am doing at the moment, a few years ago, say, I discovered I was very good a something. I could look at a a piece of wood and tell you, pretty accurately, how thick it was. 21mm. 22mm. Between 16 and 17mm. Ooh, about 27mm. It got as I was so confident that I didn't need to get out the ruler to measure it. I was in a fairly tight range, but I could easily tell you if it was 19mm or 20. Get above 30mm and it didn't work, but I guess it was becasue I was using the stuff every day, and simply got used to the fine differences in thickness.
I can't do it anymore
But as to the point about being comfortable with what you are used to, when I was making a lot more furniture than I am doing at the moment, a few years ago, say, I discovered I was very good a something. I could look at a a piece of wood and tell you, pretty accurately, how thick it was. 21mm. 22mm. Between 16 and 17mm. Ooh, about 27mm. It got as I was so confident that I didn't need to get out the ruler to measure it. I was in a fairly tight range, but I could easily tell you if it was 19mm or 20. Get above 30mm and it didn't work, but I guess it was becasue I was using the stuff every day, and simply got used to the fine differences in thickness.
I can't do it anymore