@john-nolton sub 3mm is generally the accuracy i go for with core asbuilts

@holy-cow sounds like youve worked in mining core hole logging before! I reckon there would be a market for such a device, something that scans as you...

Hi @sireath! i replied to @just-a-surveyor below on using a scanner, honestly im not sure how well i trust scan of a wall more than 60m away verticall...

@just-a-surveyor well im not sure how well i trust scan of a wall 60m away vertically at an incident angle of less than a few degrees to give me somet...

@dougie That was a real interesting read! but what was his objective? to place a control point on the top of the building that matches the lobby?Or wa...

I know this is a very old thread, but i just want to bump it for those interested in DXF's The way the points are named on the controller are as: "LAY...