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    Weld won't weld

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    • D Offline
      deanlegg
      last edited by

      I've been using weld .rb for a while and have found that sometimes it won't weld
      I select the whole curve and it still won't weld
      Any ideas cheers

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      • mitcorbM Offline
        mitcorb
        last edited by

        There have been occasions where this has happened to me. Explode the curves in the selection. Reselect the segments. Apply Weld. Does this help? If this does not help, there may be tiny gaps in what appears to be a continuous line or curve.
        Either zoom in on some of the discontinuities and hand stitch the vertices, or: use ThomThom's Vertex Tools. This plugin analyzes and highlights those gaps preparatory to correcting them.
        Edit: I see you have probably already tried this, owing to your Forum join date. So, excuse the elementary suggestion.

        I take the slow, deliberate approach in my aimless wandering.

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        • D Offline
          d12dozr
          last edited by

          If there are any intersections in the curve, weld will not work at those points.

          Does that help? If not please upload a model or image of the offending curve.

          3D Printing with SketchUp Book
          http://goo.gl/f7ooYh

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          • mitcorbM Offline
            mitcorb
            last edited by

            Something else: Anything on other invisible layers?

            I take the slow, deliberate approach in my aimless wandering.

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            • mitcorbM Offline
              mitcorb
              last edited by

              I mentioned Vertex Tools above. That is not the plugin I meant. Let me search, and return here.
              Edit: I meant to say ThomThom's Edge Tools. It is free, whereas his Vertex Tools is not.

              I take the slow, deliberate approach in my aimless wandering.

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              • TIGT Online
                TIG Moderator
                last edited by

                Little bits of branching lines or tiny gaps will stop everything welding into one curve.
                Occasionally some curves/arcs and other edges just refuse to weld into one - you must appreciate it is a complex task to take all of the bits of connected edges and curve segments and arrange them into a logical order so that they can form the new single curve.
                If I get this problem I usually explode the awkward curves back into separate edges and then all of the selected loose edges will weld into one curve provided there are no 'branches'...

                TIG

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                • D Offline
                  deanlegg
                  last edited by

                  Just because I joined before you doesn't make me any smarter than you 🤓
                  Thanks for your ideas, I think you could be right with little gaps or add ons
                  One thing that was odd if I copied the curve and welded it , it would weld, then I move it to another line it would 'unweld', hope that makes sense
                  Cheers

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                  • mitcorbM Offline
                    mitcorb
                    last edited by

                    I merely meant that maybe you had come across something like this before and my response had already been tried. I did not want to waste your time with non-relevant data. Like that below:
                    Smart= Intelligent? Innate but untried?
                    Smart= Shrewd? limited intelligence but focused like a snake?
                    Smart= Wise? intelligent and older?
                    Smart= Experienced? been there but hasn't learned?

                    Back on topic: It is odd that behavior you mentioned about copying and moving.
                    Perhaps this is a method you might use in future when the same circumstances arise. I do not have a clue. Well, I have a clue but I cannot verbalize it right now.

                    I take the slow, deliberate approach in my aimless wandering.

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                    • Dave RD Offline
                      Dave R
                      last edited by

                      It would be interesting to see the SKP file with the curve that won't weld.

                      Etaoin Shrdlu

                      %

                      (THERE'S NO PLACE LIKE)

                      G28 X0.0 Y0.0 Z0.0

                      M30

                      %

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                      • D Offline
                        deanlegg
                        last edited by

                        I didnt mean to sound sarcastic, it took me years to learn some things in SU
                        I appreciate your help
                        Heres the file its the curve by the arrow
                        Thanks


                        sidepod.skp

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                        • mitcorbM Offline
                          mitcorb
                          last edited by

                          Ok, I zoomed in to clipping and saw that you have some redundant segments branching off of at least one curve. One of the curves in the path has a total length of ~196mm with about 9 segments. I think this is the one with the branch.
                          So, TIG was right.
                          Also, I believe you will need to take away that slab that the curves are engaged on.

                          Thanks for posting the skp as v7. Maybe update your profile to show your version, etc. unless I missed it somehow, I wasn't sure I was going to be able to open it at my current location.

                          Edit: You may want to scale the geometry up a few 10's of times so that when you do the infill mesh, you do not get the tiny unfaced triangles.

                          I take the slow, deliberate approach in my aimless wandering.

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                          • D Offline
                            deanlegg
                            last edited by

                            Thanks mitcorb & Tig

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                            • mitcorbM Offline
                              mitcorb
                              last edited by

                              Glad to be of assistance. Also, some short sections(arcs of two or 3 segments) of the curve path seem to have chords forming faceless slivers, the distances are so tiny. Again, this can be seen when you zoom in to clipping.

                              I take the slow, deliberate approach in my aimless wandering.

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