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Anonymous
505 Vistas, 5 Respuestas

Intersecting 3D lines no longer intersecting after copying to another file

Hello,

 

I am experiencing some precision issues with intersecting lines in 3D. While creating my original model, I've always used snapping tools so all lines nicely intersect when they're supposed to. I copied my model into another file a while ago, and now noticed that the majority of these lines no longer intersect. In a lot of nodes where multiple lines or planes are supposed to come together, these lines or planes are now somehow detached.

 

The video below shows this for just one example. At first, I zoom in on a node in the original file. After a lot of zooming, the visualization is a bit buggy, but by selecting the lines it's clear that all lines still intersect in the same node. Next, I zoom in on the same node in my second file, where it becomes clear that the node suddenly split up.

 

https://www.youtube.com/watch?v=5wVNbzIlzik

 

The reason why this is problematic for me is that I'm working with a lot of 3D planes with 4 nodes, so if one of these nodes move even a little bit from their original intended position (or if I try to draw a new 4-node plane and unknowingly snap to such a displaced node), the 4 nodes no longer lie on the same plane, and I can no longer extrude the plane as a solid object. I also want to export the model to structural software in the end, so it's important there are no tiny gaps between planes since this would interrupt the force transfer unknowingly.

 

If anyone knows more about this issue or how to deal with it, I'd be very appreciative.

 

I'm using Autodesk AutoCAD 2020 - student version, Windows 10 Home 64 bit.

 

Thanks in advance