Posts Tagged Revit

300,000 SF in less than 12 hours.

delaware_bldgBuilding on my earlier SLAM post, we’ve been utilizing the combination of SLAM and PKNail Pro to great success.  Recently we completed over 300,000 SF of office tower in Wilmington, DE with the total time on site coming in just under 12 hours, yes that’s right 12 hours.  The scope of the project included BOMA reporting and CAD, and while the parking garages were not initially part of the scope, we walked the garage with SLAM so had a 3D database in case it was needed in the future, and in this case, it was needed in less than a week and we did not need to revisit the site, saving the client both time and money.

Process: Walk each floor with SLAM, create 3D database by floor.  Build out interiors, sample floor, with PKNail Pro, capturing typical window assemblies, doors, plumbing objects, wall thicknesses.  Back office included the combination of surveying data, creating spaces within Revit and exporting both spreadsheet data, CAD and plotted floor plans.

 

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SLAM : A Revolution in Building Surveying & Documentation

 

buildingslamSLAM technology. SLAM, besides sounding rather cools stands for ( Simultaneous Localization and Mapping). And this is is an evolution in the creation of point clouds.  Why? SLAM technology allows a user to walk through space, and in essence, create a continuous point cloud of an entire space.  Previous technologies require a machine to be placed on a tripod, and continually set up in different locations.  To get a full ‘picture’ of whatever you are scanning separate scans  have to be ‘stitched’ together, which is not as automated a process as you might imagine.   While Leica continues it onslaught of proprietary products and continuous scanning with its Pegasus systems, SLAM is based on open standards and researched extensively through the robotics industry.  Off the shelf technology in the form of Hitachi Lasers, Rasberry Pi Processors and the like will start to open up new devices and allow new manufacturers to enter what has been a highly technical and closed field.

While SLAM devices do not have the high fidelity of HDLS, it does allow for some pretty excellent data collection that is typically at a level needed for most building documentation, leaving highly specific / detailed tasks for the more heavyweight scanners, think exposed and extensive MEP, physical plans, historic documentation/reconstruction.  Personally, using SLAM devices in combination with our PKNail Pro allows us to move through spaces quickly, efficiently, accurately capturing building geometry with both systems and creating dimensionally accurate Revit objects on the fly with PKNail Pro.    This allows us to get in and out of space with minimal interruptions, and allows for quick turn around which is great for building owners/investors through due diligence, BOMA calculations or looking to repurpose/reprogram a building.  Recently, we were in and out of 300,000SF of tower in Wilmington Delaware in less than 36 hours.

While SLAM allows for the quick collection of data, interpreting, understanding the data and turning the data into usable documentation still remains very much a craft process.  Too many times I have seen a product, such as a Revit model, turned out by groups who fail to understand how building are put together and designed which eventually turns into a product that confuses and confounds the people/architects who need to use it.   In the next post I hope to dive into this process vs. product a bit deeper.

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EXISTING BUILDING SURVEYING : POINTKNOWN DOCUMENTS OCEAN SPRAY HQ

PK Ocean SprayPointknown was tasked with capturing Ocean Spray’s HQ, over 160,000 SF of Office Space and Labs over 3 Floors  set on  hundreds of acres of woods and bogs in Lakeville, MA.  Because of the nature of the building and deliverable we were able to capture the bulk of the features and geometry directly with PKNail Pro, allowing us to measure and model in real time in the field.  Interior Wall Partitioning, Bathroom Layouts, Windows and Doors.  After the geometry was completed we placed the acoustical tile grids, and placed objects directly with the Revit interface.

For surveying and documenting buildings having a set of tools allows a provider to offer the right solution set to your clients.  Not everything’s a nail so carry more than a hammer.  We first developed PKNail Pro because we needed another tool set in the field, and started offering it commercially because clients asked us if we would provide it.  Does it do everything, no; it was intended and designed to capture typical conditions very well, and quickly by turning measurements directly into Revit based objects, walls, windows doors, locate / place wall based objects from plumbing to electrical to fire protection and it does that very well.

Quote of the Project Upon Early Arrival and Hearing Barking/Howling:  “No…those aren’t dogs, those are coyotes.”

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Pointknown Wraps Up 18 Tremont : Building Surveying & Documentation : Direct to Revit

18 Tremont     

 

    We recently delivered a Revit EB (Existing Building) Model of 18 Tremont a historic 12-story, 202,000-square-foot office with ground-floor retail in downtown Boston. The building was acquired by DLJ Real Estate Capital Partners in October 2015.  Pointknown, with its partners, created an exterior HDLS (High Definition Laser Scan) and Revit model of the exterior as well as the elevator lobby, and stair cores.  After creating the base Revit model the Pointknown Team utilized PKNail Pro , a point to point, direct to Revit, reality capture tool, to document interior wall partitioning, doors, and bathroom layouts.  Using the combined technologies helped us tremendously in speed and accuracy, and the database functionality of Revit allowed us to assign spaces/offices and run space calculations a lot easier than polylining spaces.  We were then able to produce formatted documents, floor plans, sections, space calculations for the owners / investors and delivered the model for the designers.

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Top 3 Issues : Revit Models for Existing Buildings

PEA_Academy_Arts_Building

Phillips Exeter Academy and Arts Building

In my experience through a dozen plus years of the topic, these issues are best discussed and defined at the outset whether you’re outsourcing the work or doing it yourself.

  1.  What is the initial use of the model?

Start with a MVM  (Minimal Viable Model ), volumetrically correct and add detail from there.  Interior designers will need different detail than someone implementing CAFM tools, then will an architect adding an addition or an adaptive reuse project.  Custom windows, Wall Types, Beams, Fire Protection, Molding, etc. can all be added later so don’t pay for what you don’t need.

 

  1.  What technology is being deployed?

There are a variety of technologies out there, what are you or your vendor using?  How much experience do they have.  Do not be afraid to ask for or create a technology road map and ask for demonstrations, experience, and documentation of previous projects.   Technology and data capture can be and should be quite different for a 1000 rooms in a hotel vs. a theatre with non-orthogonal walls, balconies, and lots of trim detail.  Will it be HDLS (HIgh Def laser Scanning),  PPLT (Point to Point Laser Technology or P2P), Photogrammetry, Hand measuring and graph paper? There are price considerations to be had with each.

 

  1.  Architectural Intent?

Hard to believe this makes into the top 3, however, you need to discuss how you want to deal with non-conforming issues.  For example, less than a .3 degree deflection of a wall in plan view will cause +6” over 100 feet.  Who cares?  Do you?  It’s important.  As non-ortho connections in Revit cause model errors, something in new construction Revit wants you to avoid, however when modeling existing not every building was built perfectly square.  Would you rather see the building modeled with regards to architectural intent and have any non conforming issues annotated or do you want it modeled as it exists.  
There is a lot of confusion in the marketplace with regards to laser scanning and modeling existing conditions as there are no standards in place, nor certifying boards for anyone doing this work so until that day happens the onus is on the consumer to ask the questions and help manage the process to get the model they need.

Jim

Co- Founder / CEO Pointknown

Pointknown provides services and software for documenting existing buildings in Revit.  We also offer consulting to set up your own projects through enabling technology or project management.

 

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Pointknown / IR Captures and Models NYC Building Icon in Revit

Pointknown / IR captured and modeled the Saks 5th Avenue Flagship building over the summer.  The building, located at 611 5th Ave NYC,   was just refinanced and according to the New York Times valued at $3.7 billion dollars. That’s over $1 billion more than Royal Hudson paid for the entire company last year.   The survey and modeling teams used a variety of technologies including LIDAR,  its own PKNail Pro and Revit from Autodesk worked throughout the night so not to  disturb its clientele and associates.  Working through Rob Siegel, now the Design Director at Gensler Pointknown / IR created a full exterior model, shell and cores including the mechanical penthouses.  Said Rob, “This is one of the best models we’ve ever seen.”

Pointknown and its sister company IR (interioreview) creates software for the capture and modeling of existing buildings, and provides the same as  a service.  It uses best in class technologies, whether off the shelf or custom software it designs itself.  The companies are entrusted with documenting buildings like Saks 5th Avenue,  the Royal Sonesta in New Orleans , academic building on UMass and Phillips Exeter campuses to your home.  This December it will be continuing its work as part of the Phase III renovation of the Chicago Hilton.  What can we help you with?

*******

Pointknown

support@pointknown.com

617.575.2222

SFA NYC

 

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Capture Existing : UMass Old Chapel

UMass Old Chapel 3 Project : UMass Old Chapel
Location : Amherst, MA (University of Massachusetts)
Client : Finegold Alexander
Summary:

Interioreview / PointKnown was hired to survey/document and create an Architectural Revit model using generic components to accurate represent the building.  Accurately locate and model interior timbers, chapel and steeple.  Include all classrooms and offices.

Technology:  

Hardware :   Faro 330 :  Disto D8

Software:  Autodesk Revit : PointKnown PKNail Pro

Process:

Scan and register pointcloud for exterior, chapel and timbers.  Import pointcloud to Revit model architectural objects included in the scan. Measure and Build direct to Revit using PKNail Pro, extents of building footprint for quality control to compare with pointcloud data, and measure and model all rooms, offices, and classrooms.  Include Kitchen and Bathroom layouts as they occur through out the building using PKNail Pro to place all wall based objects (Toilets, Urinals, Sinks..)

PointKnown Captures Existing Buildings

Software / Services / Consulting

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Google X : Project Genie : Vannevar Technology -> Wants to Change AEC, Change the World

gren buildingsThere seems to be little known about what’s going on at this century’s Xerox PARC, Google X and it’s Project Genie, but a small amount of information was unveiled at ArchDaily.  Google’s commitment to sustainability is apparently going to reach into the AEC industry and possibly trample into Autodesk’s campsite.  While other software firms are hampered by their own internal growth and sales and what they can commit to marketing, (Autodesk wins there) and R & D.  The folks at google, know no such bounds.  The spinoff Vannevar Technology (which sounds suspiciously close to Vandelay Industries,) is working on creating…..who knows. Their website states “Reimagining building design for a more sustainable future.” Which is about as exciting as the 5th slide in a time share deck. However, google has the clout and cash in what can be a very stubborn, hesitant to change,” what are you talking to me ” culture.  Typically the principals in architecture firms don’t care about technology, they have minions to get it done so why invest in software or new tech when my current pricing, business structure, ROI formulas are working and set in stone, plus I don’t like business that much I like designing building so the less I get involved the better.  Engineers will analyze and without comparable metrics to analyze, then…paralyze. Construction managers will embrace tech if it saves the time, which equals money, so time and money but they have to live with the consequences, so embracing new tech….tough crowd.  Which is far from saying that things can’t be done better.

The small bit of copy on the web site rightly touts that buildings, yes buildings produce the most greenhouse gases, 40%, so what is google going to do about it?  Systems, software, construction methods, materials, vertically integrate and go borg on the industry.  My guess is whatever they do, they will be building some buildings with Vannevar Tech for proof of concept and case studies.  My guess it’s got be some integrated design and FM system to produce tangible CO2 / greenhouse gas savings, plus energy savings.  Some have guessed it might be a SketchUp on steroids, but then why did they sell it to Trimble. And who cares about the design process, what part of that is the current lifecycle of a building, very little, I’d want to own the building for most its life, it’s operating life, and want to own the management of it, and the data.  There ya go, so then, IBM and Maixmo, meet google, you might know them.  These are the crazy kids floating balloons for internet access. loon

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3 Myths About Laser Scanning and Point Clouds for Architecture and the Built Environment

Warped curtain

Are laser scanners and their resulting pointclouds right for you and your project?  As with all lists, it is simplified and of my opinion.  Whether you want to trust my opinion, well that’s up to you, but my company Interioreview has, for over a decade, surveyed / drafted / modeled hundreds of buildings and starting in 2006 delivered Revit Models of existing buildings.  My company, PointKnown, has created an Add-In to Revit that allows you capture and model  buildings as you measure, in real time with a hand held laser.   Now that I’ve blown my own horn here are my top 3 Myths:

It’s Foolproof and Error Free.

Wrong.  I have not once received a model from a ‘pointcloud’ surveyor without dimensional errors in the model.  Not once.  Only because of our internal controls and surveying was I able to call out the errors and was not satisfied with other companies internal controls that the errors would have been found if my company had not found them.  Such that we now will do all the modeling in house.  Just because someone has a scanner does not mean they do it well.

From the “Analysis of The Accuracy of Terrestrial Laser Scanning Measurements” FIG (International Federation of Surveyors) Paper

it is concluded that features such as reflectivity, color, and brightness of the  object surfaces have impact on the quality of the data, therefore, although 3D point cloud data is very useful it should be considered that the data can be sometimes irregular and corrupted and thus not exactly reflecting the features of the scanned object.

It’s Easy to Produce a Model From a Pointcloud.

Holy cow, no.  How many technologies come into play to get a scan created, consolidated, registered, exported, modeled? First the hardware/scanner, whether it’s from Leica, Faro, whoever, they have their own software to manage the scan/cloud, and then you can export/import to Revit to use as a background to model over.  You can use other technologies to help with this process such as Scan to BIM, or to cut portions of the pointcloud you can use ReCap, export to Autocad and re-import that data into Revit, etc.  My point being there are a variety of methods to get from here to there but they are not necessarily consistent and have their strength and weaknesses, but you are using human power to make those decisions at each step.  And then you are essentially using the pointcloud to ‘trace’ over.  That is, you cut sections of the pointcloud in what ever view you are working in and trace over them.  Has the person ‘modeling’ the building ever surveyed a building?  Or have construction or architecture experience to know how a building should be put together.  Does the architect really want to see a wall with a .08 degree deflection of wall off 90 degrees because it will create numerous amount of Revit errors, and was it really there or was the pointcloud interpreted incorrectly?  There is no easy button.

It’s Cost Effective

Putting a scanning crew on site for a day is going to cost you between $3K-$4K typically, just to get the exterior of a building, with the pointcloud only, expect at least a 2 day buy in for between $6K and $8K, and that’s typically without going inside, and at the end you get the point cloud, not a Revit model. So a typical house, modeled from a point cloud, inside and out, best guess $8K-$10K.  12 Story Commercial Office Building, $50K+ and so on.  Maybe that’s in your budget, but if so why?  Why would you need to spend thousands of dollars to be told a room is square and has a 10′ ceiling?

Once dealing with the pointcloud, if you are dealing with it yourself, I hope you have a box/computer that is going to have a minimum of 16GB RAM, multicore XEON processor, etc. and ideally has a solid state drive, this is recommended by Autodesk for ‘pointcloud’  interactions.

You as a consumer of this data need to know what technologies are out there, your choices and their cost.  I have seen circumstances and white papers where laser scanning pays dividends many times over, most consistently in existing exposed MEP intensive facilities, think utilities, drilling platforms, power-plants and the like where having a accurate representation of all that data can allow people to retrofit power-plants with few change orders or zero defects.  Imagine an offshore construction platform that can lease for $100’s of thousands a day finishing early because of the accuracy of data, very good investment indeed even if it costs $200K to model it accurately.   However, do you need that kind of data for a commercial building or an adaptive reuse project?  How are you going to capture the interiors?  There are methods to capture the built environment accurately for your needs without wasting money and effort.

Conclusion

Start with the simplest model you need, dimensionally accurate, volumetrically correct using whatever technology that gets you there cost effectively and with a level of confidence.   Adding details to the model should be done dependent on scope and need.  Power-plant of a building, you may want to bring in a scanner to model the piping package, etc.  Accuracy of a historic structure that you may need to impact because of a project, sure scan it, but to scan an entire project is overkill in many circumstances no matter what you are told.  Scan where you need details added.  Know your options.  Your tool box needs more than a hammer.

 

 

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We Now Have The Time and Inclination To Do Things Right : BIM Adoption Reaches 71% In North America

Boom_1“We now have the time and inclination to do things right,” this phrase was uttered by a client of ours, a construction manager, after the 2008 economic implosion of the real estate sector.  The time portion was meant ‘unfortunately’ as few of us were as busy as we wanted, but what he was referring to was his firms move to Revit/BIM.  It just did not make sense from a coordination or phasing point of view to work in CAD anymore because he saw the savings and potential advantages for his firm to move to Revit.

Now according the latest Smart Market Report from McGraw Hill BIM Adoption in North America has reached 71%; that’s up roughly 300% from 2007 when it was 28%.  Give or take a few percentage points.

“I think there’s going to be a huge shakeout.  Those who practice the old way are soon going to find themselves without work.  Either change, get with this program or go out of business.” -Patrick MacLeamy, CEO HOK

Strong words, and I can’t say that the legacy tail of 2D is not a long one but the benefits of BIM are real, and if the reasoning for a firm not to make the move is simply, well we’ve always done it this way.  It may be time to initiate a new planning regimen.  Also in this report is information provided by JC Cannistraro, a MEP Constractor in Watertown, MA wqhich saw change orders drop from 18.42% when working with 2D CAD, to 2.68% with collaborative BIM, that’s as a percentage of total cost, and very real money.

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