How to make a timing tape
(New page: Making a semi-permanent timing tape is very easy, and removes any doubt as to where the timing marks are or were supposed to be- provided that: '''1.''' You know (or verify) what line on ...) |
|||
Line 11: | Line 11: | ||
Using either a string, ruler or a seamstress' cloth tape measure, measure the circumference of the damper. If you only have a straight ruler, measure the diameter and multiply by 3.1416 (pi) to get the circumference. | Using either a string, ruler or a seamstress' cloth tape measure, measure the circumference of the damper. If you only have a straight ruler, measure the diameter and multiply by 3.1416 (pi) to get the circumference. | ||
− | Once the circumference is known, 1/10 of this figure represents 36 degrees. Half of that is | + | Once the circumference is known, 1/10 of this figure represents 36 degrees. Half of that is 18*, half again is 9*, etc. Doesn't matter what units you use- metric, inch, or nanoparsec's. |
When marking your home-made tape, starting from "0", BTDC will be to the right, ATDC to the left of "0". | When marking your home-made tape, starting from "0", BTDC will be to the right, ATDC to the left of "0". |