Small Project Design

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  • 1.  Letting others have my CAD Files!!

    Posted 08-08-2013 08:09 PM
    Over the past month I have had three different requests for my Cad files. We use Archicad so our project files are based upon a digital model though we can and do produce "plan" files in dwg format.
    The first request came through a realtor who had used one of our drawings in an effort to lease a space in a building that we had done some preliminary work for another prospective tenant.  The new proposed tenant had taken our drawing to the City Zoning and Building Inspection Department and was told he needed a "stamped drawing". He thought that we would not mind giving him a copy of our CAD file and a stamped drawing for the City at no cost because "we had already done the work".
    Needless to say this request was refused and I reminded the realtor that the drawing that he had was an instrument of service and my property and could not be used for any other purpose without my permission. 

    The second request was from another architect who, on behalf of his client, had been asked to prepare a "test fit sketch" for a relatively small space in the building where my office is located. We had designed the tenant improvements for series of different tenants of that particular space, over the years.  At the Landlord's request we had provided a scaled PDF of the existing conditions.  The other architect became by e-mail, indignant when I questioned his need for my CAD files and stated that he would have to measure the space and construct his own drawing at great expense to his client. The landlord agreed that the CAD files were indeed my property and that the tenant and his architect should be able to determine wether our not the proposed leasehold would support their program.  That is indeed what they did, they did not like the result and did not accept the space.

    The third, most recent and most disturbing incident occurred with a major tenant in the same building.  This tenant is a growing technology firm and an extremely difficult lease negotiator as they have grown from about 2500 sf to almost 40,000 sf.  They have constructed most of the modifications to previous tenant work, themselves with only Landlord approval, which usually is routed by me for our input and critique.  We recently provided some minor infrastructure design work.  The Tenant's project manager sent me an e-mail saying oh, by the way could we forward them the"CAD files" for their leasehold because they wanted to"mess around with some furniture layout".
    The landlord and leasing agent were concerned that they wanted to haggle on the area calculations.  The request came on a Friday and I chose to ignore it until the following week.  By the next Tuesday, in a flutter of e-mails to the Owner, etc. it was mentioned that they needed those CAD files ASAP because the were interviewing "architects".
    I responded that we , as policy, did not release any CAD files without a prior agreement and that the CAD files were an instrument of service, my intellectual property and copyrighted.
    We are now negotiating terms for compensation and release of liability.
    Obviously there is the ever present global issue that most people do not understand what we as Architects do or how we do it.
    But on a more immediate, solvable scale, this issue must pervasive throughout the profession. Did I miss a standard AIA doc for release of Liability??? 
    Thank you Peter for bringing this important issue up in this forum.    

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    Stephen Casey AIA
    Firm Owner/Architect
    Stephen Casey Architects
    Pittsburgh PA
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  • 2.  RE:Letting others have my CAD Files!!

    Posted 08-10-2013 11:33 AM
    Thanks very much Steven - these kinds of real-world examples are one of the the most useful things about this forum!

    I wanted to point out a technical issue: PDFs that contain vector information can be essentially equivalent to a stripped-down CAD file.

    PDFs are simply "envelopes" that can hold different types of information, sometimes all one type, sometimes combinations of different types.  Some PDFs contain only raster information (a grid of pixels of different shades or colors).  An example of this would be the output of a copier when a document is loaded in the sheet-feeder and you hit "Scan to PDF".  When you zoom in on the resulting PDF, the edges of the letters and lines get "grainy" and you can see the grid of pixels.

    But generally, when you "Export to PDF" from most CAD programs, the resulting file is a collection of vectors, just like an old-school CAD file.  When you zoom in on this content, the edges of the lines stay crisp, no matter how far you zoom in.  With this type of content in a PDF file, you can open up the file in an application like Adobe Illustrator, then "Export to DWG."  Once you import that DWG file into your CAD software, and re-scale the drawing, voila! you have a CAD base.  (I've actually done this to my own drawings when a CAD file became corrupted - it was unpleasant re-creating the CAD file, but saved re-staring from scratch.)

    Depending on what usable information you do or don't want to release, you may want to see if your CAD software has a "rasterize" option when outputting PDFs and/or open the PDFs in Photoshop to rasterize them, and then "save as" to create new, pixel-only PDFs to send out.

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    Thomas Donalek
    Principal
    THD Architecture
    Chicago IL
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