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Reply to "Calibration Course"

Very innovative technique, David. I like the solid anchor idea.

If you don't mind doing some math, you could leave the zip tie attached to the eyelet. And, if you have a two-sided tape (ie. one side with metric units and the other with imperial units), you can get the two required measurements in one pass. (I borrowed part of this method from Pete.)

The process would go something like this.
  • place a piece of vinyl tape onto the road and mark the starting point.

  • position the tape so the first mark is somewhere between 0 and 1 meter. Record that value. (If you have a two sided tape, flip the tape over and record the mark on the reverse side.)

  • pull the tape to between 99 and 100 meters and mark the point on a second piece of vinyl tape. Record that value. (If you have a two sided tape, flip the tape over and record that mark.)

  • calculate the metric distance. (If you have a two sided tape, calculate the imperial distance.)

Repeat until you have your approximate distance. Calculate the average distances from the two sides of the tape and then do the temperature adjustments.

That it. -- Justin
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