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Thread: Potential calculations

  1. #1
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    Potential calculations

    Im new to revit but am seasoned with autocad. I currently have some custom plugins in autocad that draw specific items that are linked to a spreadsheet using .net and also lisp. What I'm trying to work out is, if it is possible to create a family so when it is used the excel data is checked to see if the inserted family object will work or fail.

    Eg if I insert a lintel over a door is it possible to check to see if the lintel is going to fail or not?

  2. #2
    Forum Co-Founder Twiceroadsfool's Avatar
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    What is in the excel document that you need to check? Typically (in Revit) you can just build that stuff in to the component itself. No excel file needed. if there are many variations in sizes or other properties, you can use a Type Catalog, which is basically a CSV file, to encapsulate all of that data.

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    The excel file will do some quite intricate calculations for structural components. At the moment we do this in autocad, when an object is changed the custom program checks whether the changes cause the component to fail.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Right. Well as i said, you can do those things in Revit, right in the components, or in schedules of the components. If you have your heart set on making it talk to excel because thats how you did it in Autocad, i think you might be quite miserable working in Revit.

    If it were me i would be building those calcs in to my template, or in to the components themselves. Not even a question, imho.
    cganiere likes this.

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    I'm not wanting it to work as autocad does, I'm just unsure on what's possible. I keep mentioning revit to co-workers but constantly get 'shot down' as I'm told it's only good for modelling for architects.

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    Forum Addict GMcDowellJr's Avatar
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    Quote Originally Posted by Dan113 View Post
    I'm told it's only good for modelling for architects.
    Told by people who don't know Revit I'd wager? And are afraid to learn Revit (if they admitted it to themselves) I'd guess as well.

    Show us the formula and we can tell you if it's possible. There's a lot of power in Revit's use of formula but it won't/can't do everything.

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    Quote Originally Posted by GMcDowellJr View Post
    Told by people who don't know Revit I'd wager? And are afraid to learn Revit (if they admitted it to themselves) I'd guess as well.

    Show us the formula and we can tell you if it's possible. There's a lot of power in Revit's use of formula but it won't/can't do everything.

    You'd be correct on both counts. I'm pretty much the only one that wants to advance things. Most of the other guys like it in the 80's

    The following contains some very basic formula we use

    Cantilever Beams

    Most things we do are based around various beam calculations.

  8. #8
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    It is possible to have your schedules (from revit) report say a red hatching in the cell for the value "if over limit" or a green hatching in the cell if acceptable for example.

    You can put "conditional" formulas in your revit tables.

    https://knowledge.autodesk.com/suppo...A3F20-htm.html
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  9. #9
    Forum Addict GMcDowellJr's Avatar
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    Quote Originally Posted by Dan113 View Post
    You'd be correct on both counts. I'm pretty much the only one that wants to advance things. Most of the other guys like it in the 80's

    The following contains some very basic formula we use

    Cantilever Beams

    Most things we do are based around various beam calculations.
    This looks like basic algebra. Totally doable.

    For the module of elasticity, etc., you might consider a lookup table.


    Sent from my iPhone using Tapatalk
    cganiere likes this.

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