1 Reply Latest reply on Mar 22, 2014 8:43 PM by Mark Biasotti

    From Surface Sweep to Sinoidal Cut - Newbie Fail

    Mel Ivey

      A newbie question regarding sweeps:

       

      The attached sldprt (2013) is a variation of one found elsewhere in the forums. What I am stuck on is precisely how Sketch3 was created from the sketches and features preceding it. I understand the creation of the Surface Sweep, but getting from there to Sketch3 is eluding me. My various feeble attempts to use Convert Entities fail because the sinoidal loop does not appear in the graphics window during the specification of Convert Entities properties. So apparently I am starting out at the wrong place or taking the wrong steps to get from the Surface Sweep/Surface Body to the 2d Sketch3.

       

      In the end, what I'll do i with this is to incorporate use of the sinoidal loop in another part, to create an Extruded Cut from an Extruded Boss. It will be a rather more elaborate version of the depiction below. Fortunately, once I understand how to get from the surface sweep to the Sketch3, I'm pretty well home free, in that creating the extruded cut from Sketch3 is trivial.

       

      SinoidalCut (Small).png

       

      Thanks for taking the time to look at this. And, given my newbieness, please note that a generality such as "Just Convert Entities" does not give me detail sufficient to complete the task. I am only gradually filling in the swiss cheese of my Solidworks tool knowledge.

        • Re: From Surface Sweep to Sinoidal Cut - Newbie Fail
          Mark Biasotti

          Hi Mel,

           

          Actually this is one of most clever (and bizzard) methods I've ever seen to create the sketch. It was done by sweeping a simple line around a circle and using the "twist along path" option and specifying 11 turns (Surface-Sweep_Helix - Feature)  Once it is created, the user then did a convert entity of the edge of the twisting surface into the 2D sketch.

           

          this part was created in 2011, probably before the user knew about equation curves ( I think SW had them by then)  Today the best and easiest way to create this kind of sketch would be to create an equation curve (either partial - one sine and then circular pattern) or the entire curve as a single equation.

           

          regards


          Mark