Hammer7 Posted November 14, 2023 Share Posted November 14, 2023 I'm trying to modify an existing floor and change from a 22" I-joist to a truss joist. It appears that the truss it there at the correct height but no webbing... Link to comment Share on other sites More sharing options...
robdyck Posted November 14, 2023 Share Posted November 14, 2023 Can you provide more information? Several screenshots of the problem or even better, attach the plan file! If you do this, someone will provide you with the solution almost right away! Link to comment Share on other sites More sharing options...
Renerabbitt Posted November 14, 2023 Share Posted November 14, 2023 54 minutes ago, Hammer7 said: I'm trying to modify an existing floor and change from a 22" I-joist to a truss joist. It appears that the truss it there at the correct height but no webbing... did you build framing after the change? Link to comment Share on other sites More sharing options...
jtcapa1 Posted November 14, 2023 Share Posted November 14, 2023 I found a bug in the floor truss system. Try putting in "blocking" and take a look in 3d. I'm trying to use floor trusses more and more, but I still don't have a good understanding of the limitations. For example cantilevering, or cantilevering for a deck. BTW, I did report this bug to Nigel at CA. Link to comment Share on other sites More sharing options...
Hammer7 Posted November 14, 2023 Author Share Posted November 14, 2023 x14 Truss joist floor.pdf Link to comment Share on other sites More sharing options...
mLongChief Posted November 14, 2023 Share Posted November 14, 2023 20 minutes ago, jtcapa1 said: I found a bug in the floor truss system. Try putting in "blocking" and take a look in 3d. I'm trying to use floor trusses more and more, but I still don't have a good understanding of the limitations. For example cantilevering, or cantilevering for a deck. BTW, I did report this bug to Nigel at CA. What's the bug here? If it's that the blocking is displaying as cross bridging, then that's a setting on the blocking itself. Open the blocking for specification and change it's blocking type to either In-Line or Stagger. The Cross/Bridging option is what produces this unique 3D look. You can change what this option is set to for floor blocking by default in the Build Framing Dialog within the floor framing options. 13 minutes ago, Hammer7 said: x14 Truss joist floor.pdf 16.64 kB · 2 downloads A bit hard to exactly say what's going on. Are you trying to make automatic floor trusses? In X14, that isn't available and they'll have to be drawn in manually using the Floor/Ceiling Truss tool. X15 added in the ability to automatically rollout trusses within floors, ceilings, and roofs. Another thing of note is that it appears you have your OSB layer set to framing. Setting that layer to framing will create framing members within that layer and manually drawn trusses will be placed on this layer since it's the top-most framing layer, which I'm assuming is something you don't want. Open up your Floor Structure Definition, which can be reached from your Floor/Ceiling Platform defaults (or can be accessed on a per-room or per-floor basis) and uncheck "Framing" for the OBS layer. Once "Framing" is unchecked for your OSB layer, you shouldn't have any issues drawing in your floor trusses. 1 Link to comment Share on other sites More sharing options...
jtcapa1 Posted November 15, 2023 Share Posted November 15, 2023 Thanks Michael, You missed the subtle image difference. The X-Bracing is good in terms of putting something between the floor trusses, but take a good look at it in 3d, you'll see that there is NO thickness to the actual X members. Link to comment Share on other sites More sharing options...
Hammer7 Posted November 15, 2023 Author Share Posted November 15, 2023 Managed to get the floor truss to be framing rather than OSB, the height is correct but no truss, just the top and bottom cord... Link to comment Share on other sites More sharing options...
Renerabbitt Posted November 15, 2023 Share Posted November 15, 2023 3 minutes ago, Hammer7 said: Managed to get the floor truss to be framing rather than OSB, the height is correct but no truss, just the top and bottom cord... are you using a floor overview camera? also post your plan Link to comment Share on other sites More sharing options...
Hammer7 Posted November 15, 2023 Author Share Posted November 15, 2023 Yes, the top cord seems to be in the right spot, bottom cord up against it but no webbing, when I select it the highlight boxes indicate it is at the right height or size depth. Link to comment Share on other sites More sharing options...
Renerabbitt Posted November 15, 2023 Share Posted November 15, 2023 3 minutes ago, Hammer7 said: Yes, the top cord seems to be in the right spot, bottom cord up against it but no webbing, when I select it the highlight boxes indicate it is at the right height or size depth. can you post your plan, we are just guessing otherwise. If you need a higher mb cap I think you are in my discord server, you can post it there Link to comment Share on other sites More sharing options...
joey_martin Posted November 15, 2023 Share Posted November 15, 2023 55 minutes ago, jtcapa1 said: Thanks Michael, You missed the subtle image difference. The X-Bracing is good in terms of putting something between the floor trusses, but take a good look at it in 3d, you'll see that there is NO thickness to the actual X members. FWIW Trusses wouldn't use X bracing, they would most likely require Strong-Backs. Link to comment Share on other sites More sharing options...
Renerabbitt Posted November 15, 2023 Share Posted November 15, 2023 Hey all, Joe posted this on my discord server. One of his rooms wasnt set to follow floor defaults and had the osb check as framing. Also using X14. Link to comment Share on other sites More sharing options...
mLongChief Posted November 15, 2023 Share Posted November 15, 2023 2 hours ago, jtcapa1 said: Thanks Michael, You missed the subtle image difference. The X-Bracing is good in terms of putting something between the floor trusses, but take a good look at it in 3d, you'll see that there is NO thickness to the actual X members. I see what you mean. I agree that it should probably have some thickness as paper-thin bracing doesn't seem right, that's just how the cross/bridging option has always generated its 3D. Sounds like you've already reported this to Nigel, so thanks for sending it in! Link to comment Share on other sites More sharing options...
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