brantmacga
Señor Member
- Location
- Georgia
- Occupation
- Former Child
If so, can we talk about that? I have questions.
anyone here using BIM modeling?
- Thread starter brantmacga
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luckylerado
Senior Member
- Location
- Lake of the Ozarks
We use it often. I work for a GC. It is costly and time consuming and only worth it if everyone is onboard. If the mech and plumbing contractor do not have some buyin and a commitment to using it as a planning tool then it is a waste of time and money IMO. Now using it for prefab does seem to have some value
brantmacga
Señor Member
- Location
- Georgia
- Occupation
- Former Child
That's where i'm going with this.
What do I need to start? We are looking at the Greenlee BendWorks software, which works with Autodesk Revit.
I'm capable of working my way through autocad, but I don't know quite where to start with this. it seems as though my first step would be discussing with the architect if they will share the drawing files? Is that right?
Can you point me in the right direction?
Thanks!
ron
Senior Member
- Location
- New York, 40.7514,-73.9925
The Level of Development from the Architect and / or Engineer is important to be sure it is worth trying to get theirs to start from.
https://network.aia.org/HigherLogic...tFileKey=6a27a32c-93e0-4ebc-8ec1-f31c52cf71a4
Level 100 might not be worth the hassle and you just create your own shell to work from.
Usually you would get the BIM model from the client due to liability issues. The Arch or Engineer would pass it to their client then on through to you.
https://network.aia.org/HigherLogic...tFileKey=6a27a32c-93e0-4ebc-8ec1-f31c52cf71a4
Level 100 might not be worth the hassle and you just create your own shell to work from.
Usually you would get the BIM model from the client due to liability issues. The Arch or Engineer would pass it to their client then on through to you.
luckylerado
Senior Member
- Location
- Lake of the Ozarks
Small shop. In house. IMO, Sketchup without question. With or without MEPdesigner plugin
gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
I'm working on LaGuardia's Terminal B replacement. There are 5 or 6 separate models, running up to 60 Mb each. It takes up to 20 minutes to load a model on a purpose-designed work station.
It only works if someone has overall responsibility, like the architect. Even then there can be issues. The Terminal B model was supposed to be frozen for foundation, structural and most architectural half a year ago. Yeah, right. This can lead to huge amounts of redesign effort. What happens is the architect doesn't just move a wall, which is bad enough. He obliterates it and draws another wall. Now in BIM each family (think AutoCAD "block") is hosted, meaning it has to attach to something like a wall, floor, or ceiling. When the architect dematerializes the wall, all your receptacles, switches, etc, become orphans and they are floating in the middle of the model. Now you have to find all your orphans and reattach them to walls, ceiling, floors, etc. You can spend half your time or better in this exercise.
It's nothing like CAD. You'd be better off never having done CAD before you start BIM but that doesn't usually happen. All your habits and instincts for CAD not only don't apply in BIM, they can keep you from grasping the essentials. I'm sure I'll learn to love it, but probably not before I die.
It only works if someone has overall responsibility, like the architect. Even then there can be issues. The Terminal B model was supposed to be frozen for foundation, structural and most architectural half a year ago. Yeah, right. This can lead to huge amounts of redesign effort. What happens is the architect doesn't just move a wall, which is bad enough. He obliterates it and draws another wall. Now in BIM each family (think AutoCAD "block") is hosted, meaning it has to attach to something like a wall, floor, or ceiling. When the architect dematerializes the wall, all your receptacles, switches, etc, become orphans and they are floating in the middle of the model. Now you have to find all your orphans and reattach them to walls, ceiling, floors, etc. You can spend half your time or better in this exercise.
It's nothing like CAD. You'd be better off never having done CAD before you start BIM but that doesn't usually happen. All your habits and instincts for CAD not only don't apply in BIM, they can keep you from grasping the essentials. I'm sure I'll learn to love it, but probably not before I die.
Revit does have a pretty steep learning curve.
Add a new receptacle or light fixture and if you get the dreaded "Element not visible in view." message, it can take 20 min to figure out why you can't get something to show up on the screen.
Add a new receptacle or light fixture and if you get the dreaded "Element not visible in view." message, it can take 20 min to figure out why you can't get something to show up on the screen.
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