Twinbuild Docs

Locating models with Markers

To view a loaded model in your physical space, walk over to any one of your Markers and scan it with the HoloLens 2. When the Marker is detected, the scaled precision model will snap in place. Walk to a second Marker and repeat the scanning process. When the second Marker is detected, the model will scale to 1:1. Repeat this process with remaining Markers. For optimal results, scan each Marker 2 or 3 times as this will also enable the HoloLens to build up tracking data within your workspace.

Moving Markers

Twinbuild will use the cached positions of all previously detected markers to perform drift correction on your model. When working with markers located on physical parts that are expected to move while using Twinbuild, take care to re-scan the new positions of all markers after moving the part in order to ensure that the cached positions are correct.

Notes on Marker Detection

Marker detection on the HoloLens 2 runs as a background process and is ‘always on’. Marker detection will be impacted by the distance of the HoloLens from the Marker, and you may experience some slight jumps in hologram position if the HoloLens can detect a Marker several meters away as the position of the Marker will be relatively innaccurate compared to if it is scanned when the device is nearby. For best results, regularly scan the nearest Marker to your workspace to ensure adequate drift correction, and keep your workspace as close to Markers as possible. The materiality of the Marker will also affect scanning precision and matte surfaces like paper scan more successfully than screens or reflective laminate. Unevenly lit Markers will also affect scanning precision and very bright or very dark spaces can be difficult to detect Markers in. Ensure that markers are fixed to a flat surface and are not curving or bent out of plane as this will affect precision and detection. Finally take care that no objects are occluding any part of the Marker.