Not lost in translation – detecting BIM changes

A new package from 3D Repo offers effective real-time BIM change detection. This cloud-based change detection software can be used for 3D construction models to avert BIM issues from unregistered changes. This solution is said to provide a fast and reliable way to detect changes in underlying 3D models, using an encrypted web browser. The patent pending innovation operates on any 3D models, regardless of their file type, software used to produce them or file size. Called 3D Diff, the 3D Repo solution also a
May 22, 2018 Read time: 2 mins
A new package from 3D Repo offers effective real-time BIM change detection. This cloud-based change detection software can be used for 3D construction models to avert BIM issues from unregistered changes. This solution is said to provide a fast and reliable way to detect changes in underlying 3D models, using an encrypted web browser. The patent pending innovation operates on any 3D models, regardless of their file type, software used to produce them or file size. Called 3D Diff, the 3D Repo solution also allows users to share visualisations with project partners and stakeholders irrespective of location or time-zone.


The change detection algorithm allows users to mix and match models from different modelling tools and pipelines and still identify what has changed over time between revisions. This tool is important for design coordination stages, and also throughout construction when contractors introduce as-built models. It is important too for litigation to attribute who did what for legal liabilities and financial claims.

By comparing the actual geometry of a model rather than underlying, software specific object IDs or labels, 3D Diff can detect changes between models from different sources. A user can pass 3D models from PDMS to Navisworks as well as to 7981 Tekla due to project specific requirements. Without 3D Diff, there is no way of verifying what data has been lost in translation from one package to the next. 3D Diff runs in real time, regardless of the model file size, so even complex projects can be checked quickly.

The firm says that this fast, effective, software independent solution for change and clash detection requires no installation of desktop software. Data is encrypted and project privileges, such as view only or edit, can be assigned to individual project partners.

Connected Construction

For more information on companies in this article

Related Content

  • Innovative solutions to earthmoving needs
    January 3, 2013
    Several manufacturers are offering improved earthmoving machines, with more to come - Mike Woof reports. One of the most notable developments comes from Caterpillar, with the unveiling of a hybrid excavator in the shape of its 336E H model. The machine is having its public launch at the bauma exhibition in Spring 2013 and will start rolling out of the factory in March 2013, while customers will be able to place orders from February 2013. Unlike other hybrid excavators on the market at present, the Cat 336E
    Read More
  • Asphalt paving design advances
    June 15, 2012
    A diverse array of advanced paver designs is now being offered in the asphalt paving sector – Mike Woof reports With the World of Asphalt and INTERMAT 2012 events having both taken place in recent months, a series of innovations have been introduced for the asphalt paving market. Developments have come to market that widen the array of both US and European asphalt paving systems and all the major manufacturers have developed new pavers and materials feeders to meet the latest emissions requirements. Demand
    Read More
  • Improving safety for cyclists
    November 29, 2013
    New systems in development for protecting vulnerable road users - Mike Woof writes In many European countries the number of people using bicycles for commuting are increasing. This is being actively encouraged by city authorities as it offers an effective way to reduce traffic congestion, lower exhaust emissions and also improve public health. The Netherlands and Denmark have long had high percentages of commuters opting to use bicycles and other European countries are looking to capitalise on the experienc
    Read More
  • Earthmoving market introductions
    February 11, 2020
    Earthmoving innovations are coming to market in the shape of new excavators and wheeled loaders
    Read More

Highlighted Content