sketchucation logo sketchucation
    • Login
    πŸ€‘ SketchPlus 1.3 | 44 Tools for $15 until June 20th Buy Now

    Split Object Behaves Poorly

    Scheduled Pinned Locked Moved Newbie Forum
    sketchup
    7 Posts 6 Posters 780 Views 6 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • T Offline
      Trip12091
      last edited by

      Hello All,

      Just wondering how to avoid a problem I have seen repeatedly. As seen in this image, I took an object and split it in to two parts so that it could be printed. The scale (as I learned here, is 10x what will fit on my printer (1000's of mm)), so I don't believe this is a scaling issue.

      Split Object.JPG

      I split the object by creating a plane of 0.5mm in width, intersecting it with the object, and then deleting the plane and the intersection lines on the object and doing a bit (not much) patching. The problem starts thereafter.

      From there on out the walls are all (bizarly) fragmented, long clean lines are actually broken small segments, I'll get the error message "cannot use push pull or [sic] smoothed walls" (which are not smoothed). To make changes (such as the tabs you see) I have to do a lot of gutting and stiching.

      This second image may be diagnostic.... It is the hidden geometry that is automatically generated (the one little side wall is on purpose, for printing, everthing else is just sorta like "wtf" πŸ˜„ )

      Hidden Geometry.JPG

      What can I do to make this a smoother processes?

      Thanks!

      Trip

      1 Reply Last reply Reply Quote 0
      • cottyC Offline
        cotty
        last edited by

        I would suggest these steps instead...

        splitforprint.JPG


        splitforprint.skp

        my SketchUp gallery

        1 Reply Last reply Reply Quote 0
        • T Offline
          Trip12091
          last edited by

          Ahhh, great!

          I love the fact that there is always multiple ways by which to accomplish the same results.

          Thanks kindly!

          Trip

          1 Reply Last reply Reply Quote 0
          • B Offline
            bflmpsvz
            last edited by

            I usually select only faces which really need to be intersected (and use Intersect Faces - With Selection). The unwanted "hiden" lines can usually be simply deleted, so I use Eraser for it. This is not perfect solution, but usually good enough.

            1 Reply Last reply Reply Quote 0
            • S Offline
              slbaumgartner
              last edited by

              @bflmpsvz said:

              I usually select only faces which really need to be intersected (and use Intersect Faces - With Selection). The unwanted "hiden" lines can usually be simply deleted, so I use Eraser for it. This is not perfect solution, but usually good enough.

              Sometimes SketchUp creates hidden edges as part of its "auto-fold" behavior and then fails to erase them when it turns out the surface actually stayed planar. In such cases you can indeed erase them. An intersect operation may help SketchUp re-examine whether edges actually cut faces, especially the edges of a smaller face inset in a larger one.

              But if you erase an edge and adjacent faces also vanish it is a sign that the corners are no longer planar so SketchUp had to use triangles to cover them. No operation other than correcting the vertices to planar can heal this situation.

              1 Reply Last reply Reply Quote 0
              • R Offline
                rv1974
                last edited by

                favicon

                (www.smustard.com)

                1 Reply Last reply Reply Quote 0
                • pbacotP Offline
                  pbacot
                  last edited by

                  ThomThoms CleaanUp3 is also good for this sort of thing.

                  MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

                  1 Reply Last reply Reply Quote 0
                  • 1 / 1
                  • First post
                    Last post
                  Buy SketchPlus
                  Buy SUbD
                  Buy WrapR
                  Buy eBook
                  Buy Modelur
                  Buy Vertex Tools
                  Buy SketchCuisine
                  Buy FormFonts

                  Advertisement