Christopher James Drayton's Discussions (9)

Discussions Responded To (8) Replies Community Feed

"In sf would be instrument scale factor. This would probably come from the manufactur…"

Christopher James Drayton replied Sep 23, 2017 to how do i calculate the INSF?

6 Oct 15, 2017
Reply by DANIEL MCCARTHY

"Hello, Can you possible take the mean / average of the two points? This would creat…"

Christopher James Drayton replied May 25, 2017 to Baseline Stationing Dilemma

10 May 29, 2017
Reply by Donald E Robinson, PLS, CFS

"I used a similar method many years ago. The plexiglass had a cross scored into the s…"

Christopher James Drayton replied Sep 27, 2016 to Optical/laser plumb with plexiglass

4 Sep 27, 2016
Reply by Billy Brooks

Seeking Employment

"The column is 8m, the box is a shutter for the concrete to pour the colmn, but they…"

Christopher James Drayton replied Jun 24, 2016 to Setting out inclined columns

8 Jun 25, 2016
Reply by Killivien Sithole

Seeking Employment

"The best is to make a ratio of 8 to 6.4, which is 80%. So what ever the dimensions a…"

Christopher James Drayton replied Jun 24, 2016 to Setting out inclined columns

8 Jun 25, 2016
Reply by Killivien Sithole

Seeking Employment

"I have read a few of the links, no one seems to mention an optical plummet. A specia…"

Christopher James Drayton replied Mar 24, 2016 to Building survey

5 Mar 24, 2016
Reply by Christopher James Drayton

"I would reobserve the stations with GPS, as the leica will be more accurate. perhaps…"

Christopher James Drayton replied Mar 21, 2016 to New Total Station, New surveyor

2 Mar 21, 2016
Reply by Christopher James Drayton

"I cannot believe that in the US they are so backwards about UG mining.  I am a New Z…"

Christopher James Drayton replied Sep 28, 2012 to Surveyor Needs Testimonials on Mechanical Instruments

2 Sep 30, 2012
Reply by RICHARD ABBAN

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