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Thread: Need Equipement urgent

  1. #11
    Forum Addict tzframpton's Avatar
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    Some Families are pretty solid, but not many. The way the MEP world is with equipment and devices, it's best to simply learn how to make your own content because it's a bottomless pit. I find it difficult to fathom many Revit MEP designers lasting for years without knowing how to fundamentally build a decent family. Clicking pipe, duct, conduit and setting things up are one thing, and many are getting that down pat. But then out of nowhere you see the old imported-DWG Trane packaged RTU with the blue-green material that bleeds through everything and shows up on all levels, and you just wonder... reeeeally? How many years now has this Family been wrecking shop on contract documents?

    Most of my things are simple LxWxH box, necessary connectors and some clearance geometry and that's it. All you need. It's really not that hard.

    -TZ

  2. #12
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    You're right that family editing should be understood by everyone, but it really isn't. I'm the only one in my office who knows how. I'd consider that job security, but my bosses don't know what a family is...
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  3. #13
    Forum Addict josephpeel's Avatar
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    One possible solution is to make generic template families that are as parametric as possible, so that it is possible to make almost anything you need using Edit Type.
    Then only a few key users need to know how to create the templates or add parameters/functionality/calculations etc. to them, everyone else just modifies the template parameters to set the size, connector positions, 3D object type and so on to match the product data of the equipment selected for the project.
    I posted something about this ages ago (2012...time flies)
    https://www.revitforum.org/mep-family-creation/10058-concept-mep-families-consulting-engineers.html

    Since then I have been using this principle to make MEP families on various projects to make all kinds of generic representations of equipment, or as a framework to load external content into. Sure, the same people who say they could never learn how to make families complain just as much about having to use the (still complex but much easier) Edit Type method and expect someone else to do it for them...

    Im about to make a new set of templates with some improvements, so heres one of my current families;

    Im happy to share it for people to play with, use it as you wish, because its been 5 YEARS! since I came up with the idea and my greatest frustration at the moment is how long it takes to get anything implemented and to convince people to try a different way of doing things....

    You can load symbols (GA or DI) and 3D models into it and select them when creating types. Theres a bunch of basic forms in there already.

    (Yes I know its pretty big for a family but theres 3D models in there that are not strictly neccessary, and making lots of types in a project is still smaller overall than adding lots of individual families)
    Attached Files Attached Files
    Last edited by josephpeel; July 4th, 2017 at 08:22 AM.
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  4. #14
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    Actually creating the family is easy, it's setting the correct parameters so its useable that's the difficult part
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  5. #15
    Forum Addict Andres Franco's Avatar
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    I think the way to learn Revit is to face problems, sometimes a lot of them since you are a beginner , back in 2012 I modeled this family which you can find in Revit city, is not a perfect one, but I just take the manufacturer's product data submittal sheets,



    and yes "setting the correct parameters so its useable that's the difficult part"
    Attached Thumbnails Attached Thumbnails Need Equipement urgent-tank.jpg  

  6. #16
    Forum Addict tzframpton's Avatar
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    Quote Originally Posted by Hudster View Post
    Actually creating the family is easy, it's setting the correct parameters so its useable that's the difficult part
    Yes. I agree with this. There are two types of Families: Static and Dynamic. Static are non-parametric one-time set of values. It basically has one "Type" - itself. Then you have Dynamic, better known as "flexible" or "parametric", in which you intuitively create content that is driven by values and geometry. There are certainly more complex but not necessarily more difficult.

    -TZ

  7. #17
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    Quote Originally Posted by josephpeel View Post
    One possible solution is to make generic template families that are as parametric as possible, so that it is possible to make almost anything you need using Edit Type.
    I've done something similar for my families. I have a "Motor driven mechanical equipment" family template that has all of the electrical parameters that our schedules and electrical people need. It uses lookup tables to find the correct Full Load Amps based on the entered motor horsepower and voltage. I really like how that worked out, because I can then use this template for any kind of fan or pump. The lookup tables have the FLA data from the NEC (the US's National Electrical Code), but there's an "override" parameter you can use if you want to use a different value.
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  8. #18
    Forum Addict josephpeel's Avatar
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    Nice! Ive been looking at using Lookup Tables for that type of data too.

    For Mechanical stuff, like Air Terminals you can get all sorts of data from different manufacturers that could be stored in a lookup table instead of managing a huge library of families and types.

    So a generic Family, with very generic formulas (Like Pressure drop per airflow = a + bX + cX^2) and then lookup tables to list the a,b,c constants that fit each manufacturers data. Might provide a smarter way to make component selections than looking through manufacturer datasheets every time..

  9. #19
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    I've started doing this with VAV Terminal Units. There are so many different kinds of these and we had a family for each. Now we have ONE family that can be a parallel, series, or single duct unit, depending on what lookup table it's using. The lookup table controls its type (parallel, series, single duct), its dimensions, and its motor FLA.

    One annoying limitation is that the lookup tables don't support text. So I had to create a numeric system to identify the various manufacturers and models.
    josephpeel likes this.

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