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Calibration Headaches

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(@rover83)
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@chris-bouffard?ÿ

Eh, I would do the same thing if I were going to have to stamp & sign work based on those projects.

Unless I was part of the original project effort and personally know how the work was performed, and the control established/adjusted/reduced, I'm going to do my due diligence. Even great surveyors sometimes make mistakes, and I really don't want to have to answer "Yes sir, I relied upon someone else's work without performing any checks whatsoever" if I happen to run with those mistakes and get into a legal bind or backcharged...

 
Posted : 11/08/2021 12:20 pm
(@loyal)
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@rover83?ÿ

(Russian: ?????ý?æ¥?¥??, ?«?? ?¨¥????ý?æ¥?¥??) Trust, but verify

 
Posted : 11/08/2021 12:31 pm
(@350rocketmike)
Posts: 1144
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@chris-bouffard?ÿ

I think every time my boss buys a company there is some kind of clause saying the pls has to stay a certain number of years minimum. That's the main reason he buys companies these days is to get the surveyor plus some extra staff.?ÿ

 
Posted : 13/08/2021 2:23 am
(@mojavegreen15)
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@bstrand Ok.?ÿ Hopefully in the calibration you have more than 2 points used for the calibration.?ÿ If you have say 4 or more does the horizontal & vertical values look reasonable.?ÿ If they do then good.

When you had the issues with the TS did you go back to the original job and export the points and then start a new job put the scale at 1 then import the points then used those values to setup the TS (using the shot values not the calc points) and everything seemed to check good.?ÿ If this is what happened then the original job that has the calibration in it isn't solving for using a TS.?ÿ Trimble knows about this issue for awhile and really haven't solved it but I worked with Trimble to do a workaround so that you can use the original calibration job file.?ÿ Let me know if this is what kinda happened so I can help you with the work around.

 
Posted : 13/08/2021 4:17 am
(@jitterboogie)
Posts: 4275
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Sounds like business is great!!!!

 
Posted : 13/08/2021 6:25 am
(@bstrand)
Posts: 2272
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@mojavegreen15

I haven't looked at the calibrations in most of these jobs actually.?ÿ I found these errors the first time to these jobsites, figured out a work-around for that day, and haven't been back to any of them.

Like I say, the one job where we did look at the calibration had a 2-pointer.?ÿ The higher-ups are still deciding what to do with that one.

When you had the issues with the TS did you go back to the original job and export the points and then start a new job put the scale at 1 then import the points then used those values to setup the TS (using the shot values not the calc points) and everything seemed to check good.

Yep, that's exactly what happened.?ÿ I don't think it'll be worth trying to fix the problem there though.?ÿ We might have 1 more trip to the site to set final pins and I can just do that with the robot using the job I created.

That's really good to know there's a known bug though.?ÿ I'll keep an eye out for that on other projects, or if I hear word of it happening in other offices.

 
Posted : 13/08/2021 3:02 pm
(@chris-bouffard)
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@rover83 I know the PLS well, he's not only a very long time friend of mine, but a very good surveyor.?ÿ I had followed his footprints several times before the transaction and never found fault.

 
Posted : 16/08/2021 1:14 pm
(@chris-bouffard)
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@350rocketmike If the PLS is not an equal shareholder in the company, that is up to the PLS to decide if he wants to stay on.?ÿ In this particular case the majority shareholder was the PE who established the business that was bought.?ÿ The company that I worked for, the buyer, five PLSs on staff, including myself and our Survey Manager had a personal grudge with the PE who we bought the firm from.?ÿ The only reason he had the surveys disected was to inflict financial harm on the owner to steal his receivables that were still due to him on open accounts.

 
Posted : 16/08/2021 1:23 pm
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