Trim edge

 From: brash 25 Mar 2013  (1 of 9)
 Hi All, When I construct a network from four curves I get a solid with single edge. When I trim a solid on surface near edge I get one edge, but when I trim surface on edge I get two edge. Pls help: How I can choose one curve from four curves which be single edge of solid? How I can blend three edges on two solids? Attachments:

 From: Mauro (M-DYNAMICS) 25 Mar 2013  (2 of 9)
 5792.2 In reply to 5792.1 Hi: first trick,draw a line (blue) perpendicular to the opposite edge like in my picture,than trim the edge using that line:you'll have two edges to blend second trick: if they are spheres,rotate left sphere 180° before trunk them to get the seam on back M Attachments:

 From: brash 26 Mar 2013  (3 of 9)
 5792.3 In reply to 5792.2 Thank you! I did trim the round curve, but get three curves! WHY??? Of couse i can rotate example sphere, but my model is not possible rotate((( Could explain how I can change a single curve of solid? EDITED: 26 Mar 2013 by BRASH Image Attachments:

 From: brash 26 Mar 2013  (4 of 9)
 For example I think I understand. I increased the length of this curve, make the network, and edge of the solid became a different curve. Probably the shortest curve became a edge of solid? Then why not profile curve do not became a edge of solid? Attachments:

 From: Michael Gibson 27 Mar 2013  (5 of 9)
 5792.5 In reply to 5792.4 Hi Brash - a closed surface will always have a "seam edge" - that's just how NURBS surfaces work. The surface is defined by a rectangular grid of control points, something like a sheet of paper. But it's a stretchy rubber sheet of paper and some spots (the ends) can be pinched down to a point, and you can also make a closed tube by rolling up the sheet of paper so that 2 opposite ends touch each other, that's what results in a seam edge. The particular profile that becomes the seam depends on the order that the curves happened to be processed inside of the command's calculations. In some commands if you individually click on curves that can affect the order that they are processed, I don't remember right now if that is the case for Network or not. - Michael

 From: brash 27 Mar 2013  (6 of 9)
 5792.6 In reply to 5792.5 Hi Michael, Thank you! I continued to experiment and has increased the length of the curve, but this time the same curve has an edge. It would be good to have the opportunity to choose the curve, that will be the edge. I would be grateful if you would have understood how the algorithm of choice of the curve in the edge. Because I have shown by example that cutting along the edge and the solid produces different results, but for me it's important.