Augmented Reality in Timber Construction with SEMA Interface

SEMA now has an interface to the Timberplan app from Woodtec Fankhauser, a supplier for prefabrication in timber frame construction. Consequently, it is possible to use SEMA with the Hololens data glasses and augmented reality (AR) in timber construction.

The planning data is transferred from SEMA to the app via a DFX export, which then translates it for the data glasses. The SEMA interface has been exactly tailored to the application so that visualisation with colours and legibility in the glasses is precisely possible.

The AR glasses are folded over the eyes as a display. At first, a QR code is read from the Woodtec Fankhauser assembly table, which the glasses are aligned to. Now, the plans from SEMA can be projected onto the assembly table in real size. Various functions can be accessed via gesture recognition.

The projection shows what construction is present, where the frames and timbers run and where the boards are attached. The timbers can be assigned to the correct position by means of the component numbers and labels allocated during joining. The posts underneath the board become visible: The glasses show the outlines of the timbers, so that marking lines or marking tools are no longer necessary for clamping or milling.

Further information from the plans such as electrical wiring can also be displayed. The virtual display of the entire 3D model on a small scale makes it easy to keep track of things.

The Advantages

  • The prefabrication of timber frame walls is made considerably easier with the Hololens; Walls can be assembled faster and more precisely.
  • Carpenters can see the position of the timbers in true dimensions on the assembly table directly in front of them - they have their hands free and no longer need to look at the plans.
  • The posts underneath the boards no longer have to be measured during clamping. All necessary information can be displayed immediately.
  • Sources of error are reduced by displaying components and dimensions and consequently the quality of work will be improved. Untrained workers and apprentices can easily be guided through the manufacturing process with AR glasses.