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Forums >> Revit Building >> Technical Support >> How Bimmy & 3D are most folks. Can I take a poll?
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Joined: Tue, Jan 6, 2004
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Are you guys out there making every light fixture, cabinet, plumbing fixture, site accessory, base, trim, and door knob in 3D with building information data tacked onto it, being scheduled, tallied, and quantified? If so, how big are your files and what kind of computer are you using? I have had to dump most of the cabinets, 3D plumbing fixtures, no site at all in the project, etc. going to 2D lines in order to get the file size down and get the project not to take forever regenning. If my situation is typical, I have to wonder how in the world we are supposed to meet the "building a complete building model" obligation that the folks selling BIM seem to be placing on us. Next question. If keeping the size of the project small enough to work with it IS an ongoing struggle, how in the world can you import in Revit Structure or Revit MEP for conflict resolution and how in the world can all three be combined together to give the owner and/or contractor a complete building model? Just curious. Thanks in advance for any responses and if I am just a clumsy Revit guy who doesn't know what he is doing, I apologize in advance too.
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As larger more complex projects are designed using Revit coupled with advancements in the software, file sizes will just keep getting larger and larger. I suggest you step back and take a look at your hardware and see where you can improve. Search these forums for subjects like hardware configurations and large project management and I'm sure you'll find a bounty of helpful advice.
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Brandon Pike | Owner/BIM Specialist 
cad.web.print website: http://www.thinkdesign-studios.com blog: http://www.bimtionary.blogspot.com/ |
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Thanks for taking time to suggest a more powerful computer. The implication might be that you guys are doing all of your cabinets, plumbing fixtures, site accessories, etc. in 3D and are having no problem since you invested in powerful computers. Is that a valid inference? If so, I would be curious as to how detailed you are getting in scheduling and quantifing the BIM data. How detailed is the information that you provide yourself, the owner, or the contractor in your Revit project? I am wondering how far beyond the count of window and door types, the floor area, volume, perimeter, etc. do you guys go?
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Yes, Revit is a very RAM and Processor power hog. RAM (both virtual; 4Gb recommended and graphics card) when panning, zooming, etc and processor (3Ghz recommended) when rendering. It's not so much the quantifying and scheduling (yet it is a great side effect) as the reasoning behind modeling certain elements, it's the pure coordination and concurrency of using 3D elements. Why draw cabinets in 2D on a floor plan and have to draw the same cabinet again in 2D on interior elevations, leaving yourself prone to error and taking more time, when you can place the cabinet in plan and have your plans, elevations and sections populated with no extra work? Our moto is if it's going to be seen in more than one view or if it is going to be scheduled, then model it. Take some time to look at your company standards, do they elevate casework, plumbing fixtures, etc? If so, it will probably be beneficial to model them, if not, maybe u can get away with using 2D elements. You can get as in depth in scheduling and quantifying elements as you want. It will mostly depend on the project type and entity you will be handing the drawings off to. Research Integrated Project Delivery - this is the project delivery method in which the digital model is handed of to the contractor instead of standard 2D drawings.
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Brandon Pike | Owner/BIM Specialist
cad.web.print website: http://www.thinkdesign-studios.com blog: http://www.bimtionary.blogspot.com/ |
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I understand the theory. I am just curious as to actually what is happening out there. I am looking from a practice management point of view, not an IT viewpoint. Once you furnish data to an owner or contractor, there is an implied liability if it is incomplete or misleading. I am trying to find out if you guys are turning over building models with detailed schedules generating quantities of material and building data to your contractor and owner. I am also curious if you are generating a combined and complete building model that includes the Revit Structure and Revit HVAC models as well to the client and contractor. If so, are they using the same type of computers that you are describing to actually use the building model? I understand the theory and the sales hype. I am just curious how it is actually working.
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