Aryn Bergman, lead engineer and founder of TL Circle, is frequently confronted with complex engineering projects requiring days of laborious, time-consuming BIM modelling in Revit, usually from hand-drawn measurements, notes and photographs. One project he recently completed involved a complicated MEP room of a high-rise apartment building in which the domestic water heater needed to be retrofit.
(This story is brought to you by Matterport)
手工测量锅炉室 - 从墙到管道，从管道到管道，地板到天花板，地板到管道等 - 承包商需要4-5个小时，而工程师可以在4-5天内进行建模修订以及潜在的额外后续现场访问。
Bergman also knew traditional laser scanning (e.g. with a Leica system) in such a complicated and tight space would require a large number of scan positions. Laser scanning would also take longer than manual measurements in addition to the time required to register the point clouds and still require hand modelling. Finally, acquiring a laser scanner would add a significant unnecessary, expense to his budget.
因此，他开始寻找新工具，这将使MEP房间更有效地建模，而不会增加预算的额外时间或成本。
关键因素：
- 建模的手动测量值代表每个项目的大量时间费用
- 简化和加快建模过程所需的新工具
- 与当前修订/回顾工作流程同步所需的新工具
The solution
Matterport Scanning 60% Faster than Hand Measuring, Point Clouds Speed Revit Modeling by 40%
With the Matterport Pro 3D Camera, Bergman was able to capture a medium-density single registered point cloud (200 MB) of the MEP room in under an hour. Because he wanted to double check the accuracy of the point cloud, he still took the time to manually hand-measure the MEP room, which took him approximately 2-3 hours to accomplish. Once he had the point cloud, he was able to upload and index it in ReCap to view 3D model. He did this to retain the colorization of the point clouds, as importing Matterport point clouds directly into Revit can remove the colorization of the points.
从那里开始，伯格曼保存了回顾文件，并将其直接导入到Revit中，以在3D结构之上进行模型。当他将点云数据与他的手工测量值进行比较时，他发现它们精确到厘米。通过类似的项目，通过手动测量进行修订的建模将花费4-5天才能追踪AS构建。在点云的情况下，他花了2。由于点云的准确性，将来的尺寸将被最小化，从而将其花费的时间减少了60％。而且，由于点云是从Matterport传递的，作为单个，完全注册的点云，因此没有时间手动注册数据以获取最终点云。
Modelling time in Revit was decreased by 40% which was also expedited by his 24/7 access to perfect, immersive visual references to the job site. This reference material is immediately at hand without having to manage any image files. And modelling with both an accurate point cloud and visuals is the key to modelling efficiency.
伯格曼经常会回到现场visually confirm that the Revit model matches reality. With the Matterport 3D Showcase he no longer has a need to go back on site to confirm that the existing conditions were modelled correctly, removing as much as a day’s travel from his schedule.
Matterport到BIM工作流程
- Scan space using the Matterport Pro 3D Camera (30-60min/room)
- 下载预注册的Matterport Point Cloud（200 MB）
- 将点云导入回顾（保留着色）
- Import ReCap file into Revit
- 跟踪3D点云以创建BIM模型
结果
在50％的时间内，现场到金融的时间使TL圆圈能够提供竞争性定价，低30％-40％
建立像这样的MEP锅炉项目的BIM型号的典型价格大约为1万美元，但是随着优化的建模过程，价格下跌至5k-6k美元。伯格曼（Bergman）估计，与手动或激光系统完成的项目相比，在完成项目时间的领域被削减了一半。通过加快该流程，伯格曼能够提供更具竞争力的价格，这使他进入了新市场，并增加了员工的工资。
Other projects completed without the Matterport system had approximately 70% more inconsistencies with their as builts. With Matterport, that number was reduced to nearly 0.
“ Matterport帮助我将领域切成一半。我很高兴能利用这种新工具来改善BIM建模过程。”
TL Circle的所有者Aryn Bergman
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