Otherwise you can still add the properties manually. Where a property is not immediately picked up, it is possible to add a new mapping to it, we have a guide to mapping properties if you want to have a go yourselves, otherwise Autodesk Consulting or your partner can provide services to build out a mapping to the products you use.
Sometimes you won't get the necessary property in the model for example you want a property 'Beam Height' rather than just 'Height' or this is a file we have not yet created mappings to yet. Use the hide takeoff feature to see what new items need taking off in subsequent passes. If you are using Searches, we recommend you take off objects initially using the Search set, this will take off all the objects in the search at that time, on subsequent passes this will take off objects multiple times if you blindly accept the warning. If you try to take off a model object that is an instance, or if the object does not contain a GUID or properties, an error message is displayed. Then takeoff the objects using one the methods above. Create the search sets for the level of granularity you want the takeoff to be run in, for example all steel beams, or all steel beams using a particular grade, or all steel beams using a particular grade on Level 2, or all steel beams of a certain thickness on Level 2. In the Quantification Workbook find the relevant Item or group to add this selected item to, you can create a new item as part of this group if the item doesn't yet exist.ġ) Model Takeoff > Take off to Selected Item or New ItemĢ) Drag and Drop to Quantification panel with an item selected, this won't work if you have a group selected.ģ) Right click > Quantification > Take off to selected item or new itemĪs with most of the major features in Navisworks, the most effective way to run the process it to build up relevant Search Sets based on properties in the model, in this case this is important for the first run, these can then be reused between projects and keep up to date with changes in the model. So taking a sample Revit model, either exported NWC or imported RVT file, you will be able to change the Selection Resolution to First Object (under Select and Search in the Home tab), then follow one of these methods to take off the object to an item in your previously created catalog. Let's start with how to take off an object that is in the model, you'll be able to add objects at Composite Object level (in the selection tree this has a box with a cross on), that has a GUID (a unique ID to identify it). Virtual takeoff where you takeoff an item that hasn't been modelled.Manual takeoff, where you will need add the properties yourself.Automated takeoff where properties are brought across from the model.So far we have talked about the rough workflow in Navisworks Quantification and building Catalogs in Navisworks Quantification, now we get to the fun part (at least for me), taking off objects.
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