sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    Intersecting a cylinder with a curves surface

    Scheduled Pinned Locked Moved Newbie Forum
    sketchup
    5 Posts 2 Posters 440 Views 2 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.
    • R Offline
      revelever
      last edited by

      hello all- I am trying to intersect this cylinder with the curved surface of the model such that they maintain a manifold mesh. the idea is to delete that reverse face protrusion and end up with a hole through the model. whats a good way to to do this? I have tried 'intersect with model' etc. any way other than fredo plugin? surely this can be done natively!

      thank you for your help

      all the best,

      -Revel


      bed bolt prototype.skp


      Screen Shot 2015-09-05 at 4.55.29 PM.png

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

        Intersect Faces will work but you'd make it a whole lot easier for yourself if you didn't have such ridiculously high segment counts on the curves.

        Due to the incredibly tiny faces, you'll need to scale the model up quite large before doing the intersect routine.


        bed bolt prototype.skp

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

        %

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

          Here's a revised version with more reasonable segment counts.
          Screenshot - 9_5_2015 , 5_42_38 PM.png


          bed bolt prototype DR.skp

          Etaoin Shrdlu

          %

          (THERE'S NO PLACE LIKE)

          G28 X0.0 Y0.0 Z0.0

          M30

          %

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

            @dave r said:

            Here's a revised version with more reasonable segment counts.
            [attachment=0:18lroju6]<!-- ia0 -->Screenshot - 9_5_2015 , 5_42_38 PM.png<!-- ia0 -->[/attachment:18lroju6]

            How did you you redo the model with more reasonable segment counts? And what is a general rule for establishing reasonable segment counts in sketchup?

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

              I just redrew it from scratch next to yours. I used your version for dimensions and then deleted it after mine was finished.

              As for what is reasonable, that depends upon the application. If this is to be used in a model of a bed to show how the rails are attached to the posts, mine is overkill, too. If you are making a dimensioned drawing so a machinist can make them, it is probably about right. Even for 3D printing mine will probably be more than adequate. You could figure the resolution (diameter) of the nozzle for for printer and make the segment length at least that long but longer won't be a problem.

              Your version of the "hole" has 512 sides. That's less than 1° between vertices. Even 360 sides would be too many for nearly every application. I used 96 sides and I think it is round enough to get the point across.

              Etaoin Shrdlu

              %

              (THERE'S NO PLACE LIKE)

              G28 X0.0 Y0.0 Z0.0

              M30

              %

              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