Grzegorz Krzemien Posted February 15, 2021 Share Posted February 15, 2021 Hello! I have a problem with drainage tool. I wanted to create 4 slopes on my slab that all of them go down toward different edge . I tried to create that by using 4 drains and connecting them. But every time I create this I can not change the slope's value (it's always around 5%). Is my approach wrong? If so, then how can I make this kind of roof? My file and picture of what I'm trying to create are attached. Drainage tool.vwx Quote Link to comment
Tom W. Posted February 17, 2021 Share Posted February 17, 2021 Wouldn't you use the Roof tool instead of Slab Drainage? Given the direction of the falls. You can specify different bearing heights + slope angles for each face of the roof. But I can't open your file because I'm on VW2020 so am not completely clear what the desired end result is Quote Link to comment
Grzegorz Krzemien Posted February 17, 2021 Author Share Posted February 17, 2021 @Tom W., here is a VW2020 file. There is a section that explains, what I want to achieve. I do not think that I can get the same looking section by using Roof tool. Drainage tool v2020.vwx Quote Link to comment
Tom W. Posted February 17, 2021 Share Posted February 17, 2021 Thanks @GRZEGORZ What needs to be done to this one: to get it the way you want? You have the ridges where you want them, you just want to change the slope value? What is the end result you're looking for? Quote Link to comment
Grzegorz Krzemien Posted February 18, 2021 Author Share Posted February 18, 2021 @Tom W. I want to be able to change slope values. In the file I have sent there are 3 stages of my work - 1. Base slab. 2. Slab with drains in the corners. 3. Slab after connecting all drains together. My problem is that when I am connecting drains together, VW generates 5,2% slopes every time - no matter how slopes were described before connecting drains. I assume that it is somehow connected with saddle settings, but whenever I want to change saddle value Vectorworks crashes. So I have no idea if I am doing something wrong, or there is another way to create this kind of roof from slab. Thank you very much for your time :). Quote Link to comment
Tom W. Posted February 18, 2021 Share Posted February 18, 2021 Thanks @GRZEGORZ I'm no expert on this but I am interested in seeing what can be done with the tool... Annoyingly, I'm struggling to generate the hip-configured slab you show in 3. I did create this originally but now when I try VW keeps crashing! So the best I can do is a hip-configuration as shown below: But here I am setting the slope angle in the 'Slab Drainage Settings' beforehand + the slab is created accordingly. You're saying that no matter what the 'Default Slope' + 'Minimum Slope' settings are your slopes are always 5.2%? I can't see any way of adjusting my slope values after the fact though. Matt Panzer is the slab drainage (+ everything else) expert so I'm sure if you could get him on board he'd have some ideas. In the meantime I created this using 'Add 3D Object to Slab': so you could perhaps achieve what you want that way instead? The changes in component quantities when you do this are reflected in worksheet calculations so you don't need to worry about that. But you don't get the slope data/annotations like you do with slab drainage obviously... Quote Link to comment
Grzegorz Krzemien Posted February 18, 2021 Author Share Posted February 18, 2021 @Tom W. Thanks, for the idea of using 'Add 3D Object to Slab'. But as you noticed I do not get the data/annotations info, so it is rather a half of the solution. Thank you very much for your time. Maybe somebody else will have some kind of an idea how to approach this kind of a task. Quote Link to comment
Hans-Olav Posted February 18, 2021 Share Posted February 18, 2021 Im curious too, to see the best solution maybe @Matt Panzer can help? Quote Link to comment
Vectorworks, Inc Employee Matt Panzer Posted February 18, 2021 Vectorworks, Inc Employee Share Posted February 18, 2021 I wish I had a solution for you but I do not. The problem is, when connecting drains, other valleys from the drains are removed. In this case, all valleys defining the slopes on the slab are removed leaving you will no control over the slope. I'd like to see a way to set the slope of faces and I know others have wished for this as well. That would certainly help us in this case. Sorry I don't have a better answer for you. 1 Quote Link to comment
Christiaan Posted October 4, 2022 Share Posted October 4, 2022 @Grzegorz Krzemienthis is possible. See Tom's solution here: https://forum.vectorworks.net/index.php?/topic/101879-peripheral-drainage-on-slab/#comment-445969 Quote Link to comment
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