The H-Factor

Reducing Entropy

  • A customer called this morning saying he is about to bid on a project that requires that all drawings be submitted in MicroStation (.dgn) format. Over the years we have heard of similar requests and in the past all we could say to the customer is to send a .dxf file. But, there is finally a solution: AutoCAD 2008 has two new commands DGNIMPORT and DGNEXPORT. These should make even the crankiest bid guy happy (well, almost).

  • In AutoCAD 2008 Autodesk made a change in how they display drawing entities in layers that are locked. Entities in these locked layers show up as dimmed images compared to those entities in unlocked layers.

    As always, there is an AutoCAD variable that can control the amount of dimming or turn it off entirely. The variable is: LAYLOCKFADECTL

    From the AutoCAD Help file:

    Type: Integer
    Saved in: Registry
    Initial value: 50

    Controls the dimming for objects on locked layers

    The range for controlling the dimming for objects on locked layers is from
    -90 to 90.

    0

    Locked layers are not dimmed.

    >0

    When the value is positive, controls the percent dimming up
    to 90 percent.

    <0

    When the value is negative, locked layers are not dimmed,
    but the value is saved for switching to that value by changing the
    sign.

    Note: The dimming value is limited
    to 90 percent to avoid confusion with layers that are turned off or
    frozen.

    PS – The HydraCAD tools – Pick Lock and Pick Unlock (which are both found in HcadTool->Layers) are handy for locking and unlocking layers without knowing the layer names.

  • This one comes via Robert Matteson of Dynamic Fire Protection Systems, Inc – Texas:

    When selecting objects using a
    window or crossing window, I am sometimes hindered from selecting all items that
    I want quickly due to the rectangular constraint of  the window or crossing
    window.

    I found out today, that by entering
    WP (window polygon) or CP (crossing polygon) before you select your items, you can
    work the window around complex selections very
    easily.

    Thanks, Robert!
     

  • Tired of defining the same sprinkler heads over and over again? Then do it in your template once and get it over with.

    Open up the template you use most often and hit cancel if asked for sheet size and scale. This preserves this option for when you start a new drawing. Next, define the heads you use most often – they don’t have to be actually inserted into the template drawing. Lastly, save the template.

    If you are nervous about messing with our template just do a Save As after opening it up and give it a name you can remember.

  • Is the Architect/Fire Marshall insisting that you use specific layer names? Try using the LAYTRANS tool that comes with AutoCAD 2007 and later. You can type it in or find it under Tools->Cad Standards->Layer Translator…

    1. Once open, pick the New button and type in each new layer name you want
    2. Pick a layer on the left and one on the right and pick Map. That layer now disappears from the left and the mapping appears below
    3. When done mapping all layers, pick the Save button and pick a name and location that you will remember. You mapping is now done.
    4. When ready to translate, pick the translate button and your drawing is ready to go
    5. In the future, pick Load and choose the File Type ‘Standards (*.dws) to select your saved mapping

    LaytransNewlayer

  • I have a customer/friend here from Sweden this week for training. He brought his laptop and started working on it like anyone else would and I didn’t give it a second thought until he mentioned it was a Macintosh! He has a MacBook with an Intel Dual-core processor running BootCamp which is downloadable free from Mac’s website. He also has Windows XP on it, which he had to purchase. It boots up in Windows and otherwise looks like any other laptop, except it is faster than any regular laptop he would buy plus it is more stylish/functional and he can boot up under Mac OS and have all those features available as well. apparently the next update of Mac OS (11?) will have BootCamp as part of its basic feature set.

    The requirements:

    MacBook with an Intel processor (*older ones with Motorola chip will not work)
    BootCamp (free from Mac website)
    Windows XP
    Driver CD with all windows drivers on it

  • Art had a pretty busy week with five posts in five days, so I thought I’d chime in to give him a bit of a break.

    A question I often get asked, is from users who would like to share their HydraCALC and HydraLIST printouts with non-Hydratec users.

    HydraVIEW offers the option to save the transmittal as an .HVUF file, which can then be emailed to another user and viewed in HydraVIEW.  This is similar to the .HLPF file which HydraLIST automatically creates after processing your stocklist.  Again, these files are fine if the person you’re emailing the file to has HydraVIEW.  But what happens if they don’t?

    A simple solution is to install a PDF Writer application to your computer.  This acts as another printer on your computer, but instead of it being a piece of hardware, it’s a software application which creates a PDF file of your printout.  Instead of printing to your HP Printer, you select to print to the PDF writer, give the printout a filename, and voila, it’s created a PDF file to share.

    Adobe Acrobat Elements is the gold standard of PDF creators, but you can find some inexpensive and shareware applications as well.  A quick Google search finds many to choose from.

  • An update to HydraCALC which contains the ability to printout hydraulics conforming to NFPA 2007 is now available for download on our website. As always – when you update your HydraCALC, you must update your HydraVIEW.

    Set up your Info Sheet under View->Info Sheet and choose NFPA 2007. Also choose NFPA 2007 when you print it out under the items Info Sheet, Press / Flow Summary and Calculation Sheets. Those screens and the new printouts are below. Please note that the new standard does not give a provsion to include velocity pressure. This means that the 2007 printouts will not be available if you do a velocity calc. This will change if NFPA creates such a provision.

    InfoNfpa_2007
    Info_sheetFlow_summaryCalcs

  • It is possible to automatically save a 2004 version of a drawing every time you hit SAVE in 2007, but you need an add-on to do it. DUALSAVE.ARX is the add-on.

    1. Download the DUALSAVE.ARX from our website at this address and save it to your H40\PROG\CAD2007 folder
    2. In AutoCAD, pick Tools, Load Application…
    3. Navigate to H40\PROG\CAD2007and select and drag DUALSAVE.ARX down to the little briefcase you see that says Startup Suite – this will cause the program to be loaded each time you start AutoCAD

    Please note that this will cause Saves to take a little longer because the save is being done twice, once in each format.

    Also, this will not work in 2008. No word on an update yet, either.

  • It is pretty easy to list an extra threaded outlet off a welded line (or main), for example a plug for future.

    1. Go into Sprinkler Setup and pick New Symbol. Select either PLUG1.DWG or PLUG2.DWG
    2. Select Attached Directly to Line or Main
    3. Pick OK and choose the proper thread size for the outlet
    4. Insert where needed

    That’s it