As professionals we should be eliminating as much error as possible,?ÿ From a practical standpoint it probably doesn't matter.?ÿ?ÿ
My thought is that I will do it to the best of my ability.?ÿ Measuring your HI takes very little time so why not?
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Hmm, maybe I have a collectors item, use it every time I have to measure up an HI on the robot.
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Several years ago when Ky. was going thru the "gonna switch to metric" phase, I was in the local farm store and saw this laying on a table in it's wrapper with a $12 tag on it.?ÿ I know the owner pretty well, so I handed it to him and asked how much he would take for it.?ÿ When he said it's $12 I told him to look at it closer.?ÿ He flipped it over a couple of times, handed it back to me and said "Here, just take it".
Tenth/cm are hard to find. Lots of inch/cm folding rules for sale.
@bill93?ÿ You said "Tenth/cm are hard to find.?ÿ?ÿNOT TRUE!?ÿGo to Baseline Equipment Company, Eugene, Oregon, Phone number 877-844-3101 12 foot?ÿA29 Yellow Clad for $13.50
JOHN NOLTON
I think it is important to make a distinction between the types of error in reading the HI. If it is a random error of 2mm reading the tape from time to time then it probably doesn't matter too much. However if it is a systematic error of 2mm (which was the original poster's question) it does matter in my opinion. If you deliberately add 2mm to your total station HI only, you will see a noticeable increase in your vertical backsight errors.