BIMTek offers a site layout service to our clients as part of the one stop shop service we offer.
Its never been so easy for us to layout points for steel erectors or any other installer to take advantage of. So why is nobody really doing this? Why are fabricators still expecting riggers to set out drilling's and weld on plates using string lines and tapes? I don't know the answer to this question but I'm guessing that its got something to do with low expectations of the technology, low expectations of accuracy and expectations of high pricing. It might also be due to the lack of exposure this technology gets in the industry as it is seen and expensive and to some almost like magic.
The Trimble Robotic Total Station technology enables critical points to be set out on highly complex structures and makes life easy for the installer. It also saves money as installers can start installing as soon as they get to site rather than struggling to set out starting points on ever more complex structures. The Trimble RTS also logs every point you set out as a measurement so you can tell how much packing to use or see how far out that concrete base really is. These measurements can be re-injected into your 3D model for analysis so last minute tweaks can be made to items still in the workshop. This data can also be used to prove to your client who is wrong when something doesn't fit.
Anyway BIMTek is out there doing it! I can operate the RTS from up on a work platform and mark the points I need to mark a lot faster and more accurately than a rigger can with a tape and string. This means I can be ahead of the riggers and mark out while they are doing what they are supposed to be doing like welding on plates and drilling holes all in preparation for the installation of steel. this ultimately saves the fabricator cash.
Don't forget this isn't just ideal for steelwork but MEP, concrete and blockwork installers would benefit from this too.