mm's and or inches

[Tin Falcon]

I prefer imperial measurement. It is what i grew up with more or less. Mertification was the big push in the late 70s the world was going metric so everyone had to learn it. An metric units are used in physics and science books.
My shop machines are all calibrated in imperial.
Tin

 

[Ken I]

MMs or Inches? That's now not only a function of location but of age, and wot you was taught in school.

I was halfway throuh my trade / engineering training when we were metricated.

So I'm a conflicted engineer.

In dimensions I prefer metric - but somehow I've never broken with PSI for pneumatic/hydraulic and stress calculations and end up doing my caculations in imperial and converting back.

Mentally I intuitively "get" PSI - Pascals just doesn't ring any bells for me.

Ken

 

[Maryak]

My fingers can feel 0.002" variation

MY eyes can/could see 0.002" misalignment

I was brought up in an imperial world.

Since we metricated I have a foot in both camps but normally, I don't feel with my toes