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Chose GPS machine control over a laser screed for a 40x60 pour in Tulsa, and my foreman is still giving me grief
Honestly I had a crew of 5 and a $6,000 budget gap, so I picked the GPS dozer package over renting the screed rig for a commercial slab job. It went fine on the flatwork but my foreman swears we lost half a day hand-checking grades on the edge because the satellites drifted behind the tree line. Anyone here running machine control in tight urban lots or should I just eat the screed rental next time?
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holly_thompson9817d ago
Trimble put out a case study a while back on a crew in downtown Denver that ran into the same thing with trees and buildings blocking the signal, and they ended up adding a total station to the setup for the edges. The GPS gear is great for bulk dirt and big open pads, but tight lots with canopy overhead are a known weak spot, not something your foreman is making up. For a 40x60 slab where the edges are what get checked, the screed rental might actually pencil out cheaper than the lost time.
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