• This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn more.
  • Guest,  We want to wish You and Your Family a Healthy, Happy Thanksgiving! Click the "X" at the top right corner to remove this notice)
  • PLEASE: Read the FORUM RULES BEFORE registering!

4

How often do you measure over 12"?

3
Like what you see?
Click here to donate to this forum and upgrade your account!
10

Rustrp

Active Member
Active Member
Joined
Feb 6, 2017
Messages
541
Likes
446
#61
Pi tape
You are going to have to tell me what the Pi stands stands for .
Pi numerically is 3.1416 and you know this already. A Pi tape is used to wrap around the circumference of a cylinder to arrive at the diameter. As has already been commented, they work well on irregular or distorted shapes and soft plastic, rubber, etc. When all else fails or you just don't have a tape, wrap a piece of sturdy tape around the outside, slice it with a knife, peal it off and measure it, then divide this by 3.1416. I wouldn't look for .0001"accuracy this way but you're in the ballpark close.
 
[6]
5 [7]