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  1. dfaunce

    Derivation of HVAC equation

    Hi Chicopee, Page 5, equation 12 http://www.learningincontext.com/PiC-Web/pdfs/AirSys.pdf
  2. dfaunce

    Ideal Gas Air Tables

    @DRWeig This is great info! This makes a lot more sense now. Thanks! -David
  3. dfaunce

    Ideal Gas Air Tables

    Entropy values between SI and English units in the Ideal gas tables of air do not seem to be linearly related...is this true? If not, Sanity Check: 1 (kJ/kg-K) = 0.238845 (Btu/lbm-R) If the above is true, take a look at the ideal gas tables for air (here's a link to some...
  4. dfaunce

    How to exit block edit

    Right Click on empty space in your toolbar --> MAIN --> Make sure "Component" has a checkmark. Right-Click on your block and then choose "Edit Block". Choose which component of the block to edit Make you changes to the block. Once you are done making the changes look at the top of your screen...
  5. dfaunce

    ExportPDF Settings

    I wrote a script to draw a drawing with 2 sheets (not including model space). This script is part of a larger macro program I created and the program will be used by people who have never seen CAD Software. I have a licensed version of Adobe PDF but the problem is that you cannot "Print" both...
  6. dfaunce

    Command Line Only

    I'm writing a script and for the life of me I cannot figure out how to perform one of the simplest functions in CAD. Because this is a script I cannot use a mouse, only command prompt. Technically I want this: ZOOM SELECTION 10,-10 -40,40 and then I also tried this: ZOOM SELECTION 10,-10...
  7. dfaunce

    DraftSight script - almost working...

    I'm also new to DraftSight and am too working on a script. I noticed though that because you are printing to pdf (or converting) you are technically making changes to the existing .dwg file. To avoid having that msgbox pop up try to save the file before you close, if you do so then it will close...
  8. dfaunce

    Passivation of AISI 304SS

    I'm a young engineer and am still have a lot to learn, so bear with me. I work in the aerospace industry, specifically water/waste systems. We frequently authorize certain parts to be passivated, seeing that the fabricated parts of our plumbing systems are stainless steel (particularly 304)...

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