Hello there ; The b parameter seen in the scissors union is the part seen in the image. However, it refers to the distance formed in the outward direction from the end of the strut and diagonal section of the truss so that you do not have to struggle to find the total distance. What we mean is that if you make b=0, the truss elements and the junction plate will completely overlap, and you will not see a plate in the outer direction. The aim is to enable you to model quickly by preventing you from calculating the distance between the strut and the diagonal welded from the in-truss distance and angle. Thanks for the warning though, it can be updated with a visual that shows it starts from the end of the section. If you mean to create a wider plate by plate geometry, you can understand it when you enter high values in b value. Improvement studies are carried out regarding the joints within the truss. You can model with a more functional menu in future versions. If you have an additional request, if you explain it to us with images, it will be taken into account. Thanks. Good work.
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