To position the FramR on the job site and be able to project construction drawings on concrete, the layout projector must understand where it’s located in the 3D environment. There are many ways to do so but only a couple of them provides the right accuracy. Recently, we changed one of the positioning tools we use to get to the level of accuracy you need.
Prism or Target?
Among all of the ways to take precise measurements, our team came down to 2, a prism and a target. Right now, most of the surveying tasks are done using an optical prism, especially since the appearance of Electronic Distance Measurement (EDM). Optical prisms are simple to use and provide high precision. Although they have 2 majors flaws. They are extremely fragile and they are expensive.
A thing that we all know for sure is that a tool for the construction environment needs to be rugged. It doesn't matter how careful you are with it, odds are that something will happen. Having that mind, we decided to reconsider the use of a prism. We went back to the office and started to look for another method of measurement that is precise, works in long-range and ain’t fragile nor expensive.
Here’s what we needed:
- Provides an accuracy of 0.1mm
- Works with our technology
- Easy to carry
- More Resistant
- More affordable
The answer is an anodized aluminum target.
Want to see it the impact it has?