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Just ate my words about drone site surveys after 6 weeks of testing
I run a small framing crew outside Austin and swore drones were just a toy for real work. Then a builder insisted we try one on a 4-acre slab layout to check form elevations before the pour. It caught a low corner on the north end that my transit missed by half an inch. We fixed it in 20 minutes instead of finding out after the concrete set. Has anyone else switched methods after a bad miss like that?
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evan_morgan811mo ago
A half inch on a slab will bite you every single time, so catching it before the pour is a huge save. My advice is to set ground control points first, because drones get floaty without them and your numbers can drift. Fly it at the same time of day each trip too, since shadows mess with the photos and your elevations.
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rubym451mo ago
Ground control points plus a fixed flight path every time means your elevations actually stack up trip to trip.
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