mrozenberg Posted February 13, 2015 Share Posted February 13, 2015 Hi, totally new to Vectorworks (like 2 days) I am trying to build a model to 3D print. I'm almost done but want to add a protruding part to a side of a cylinder (see attached image). I have the profile of the protruding part in flat 2D but how do I go about to: (80k image) a) get a bent version that follows the curve of the cylinder? b) extrude the depth of the curved protrusion? I have tried several approaches and even tried to build the whole thing using polygons and arcs but failed so far. One can not simply extend the part into the z-axis without bending it since the angles will not be orthogonal towards the cylinder surface. Appreciate any tips you have =) Kind regards, Mikey Quote Link to comment
mrozenberg Posted February 13, 2015 Author Share Posted February 13, 2015 Hi (sorry, posted this in general first by mistake) Totally new to Vectorworks (like 2 days) I am trying to build a model to 3D print. I'm almost done but want to add a protruding part to a side of a cylinder (see attached image). I have the profile of the protruding part in flat 2D but how do I go about to: (80k image) a) get a bent version that follows the curve of the cylinder? b) extrude the depth of the curved protrusion? I have tried several approaches and even tried to build the whole thing using polygons and arcs but failed so far. One can not simply extend the part into the z-axis without bending it since the angles will not be orthogonal towards the cylinder surface. Appreciate any tips you have =) Kind regards, Mikey Quote Link to comment
Bas Vellekoop Posted February 13, 2015 Share Posted February 13, 2015 Maybe the project tool with the third mode selected does what you want? http://app-help.nemetschek.net/2015/NNA/eng/VW2015_Guide/Shapes2/Project_and_Add.htm Good luck! Bas Quote Link to comment
mike m oz Posted February 13, 2015 Share Posted February 13, 2015 Give your 2D shape the required thickness and then use the Deform tool to bend it symmetrically. Quote Link to comment
bcd Posted February 13, 2015 Share Posted February 13, 2015 Hi Mikey, welcome aboard. Assuming you want your projection to be a linear extrusion you can simply extrude it through the cylinder - then create another solid extrusion for the parts you don't want - select both and Model>Subtract Solids. Quote Link to comment
Kevin McAllister Posted February 13, 2015 Share Posted February 13, 2015 If you're trying to extrude a curved profile as if it is radiating out from the centre of your cylinder, VW won't do what you want (try Rhino). You would need to build it manually which is a much more involved process. Kevin Quote Link to comment
Kevin McAllister Posted February 13, 2015 Share Posted February 13, 2015 Please don't double post your questions in different forum sections. You'll get much better advice if it all stays in one thread. Kevin Quote Link to comment
Vectorworks, Inc Employee PVA - Admin Posted February 13, 2015 Vectorworks, Inc Employee Share Posted February 13, 2015 (edited) Threads merged for cleanliness. There are a few ways of doing it, but its true you cannot instruct Vectorworks to simply wrap a NURBS curve/poly against a face in the manner you're looking for. Would your desired end result be something like this? [img:center]https://techboard.vectorworks.net/ubbthreads.php?ubb=download&Number=11788&filename=ring%20test2.PNG[/img] Edited February 13, 2015 by JimW Quote Link to comment
bcd Posted February 13, 2015 Share Posted February 13, 2015 Wish - radial extrude Wish - polyradial extrude Quote Link to comment
Benson Shaw Posted February 14, 2015 Share Posted February 14, 2015 (edited) +1 radial extrude +1 poly radial extrude Mike Oz has this one right. Use the Deform tool. It's solids modeling, rather than mapping. But it works for cylinder. A guide arc is very helpful, with arc length equal to the poly length. And the 3d version of the poly has to be aligned over the arc midpoint. I think the PushPull and extrudes will make a distorted shape. They extrude normal to a plane, rather than always radially. I deformed the planar NURBS surface, then shelled it. I guess one could instead deform the extruded or shelled poly. -B Edited February 14, 2015 by Benson Shaw Quote Link to comment
Kevin McAllister Posted February 14, 2015 Share Posted February 14, 2015 Benson is the master as always! Great explanation. +1 radial extrude +1 poly radial extrude Kevin Quote Link to comment
Benson Shaw Posted February 14, 2015 Share Posted February 14, 2015 Thanks, Kevin This would be really challenging in VWX for wiggly or saddle surfaces. Does Rhino have a more direct mapping process? Eg select a planar object and a surface, then indicate a start location and direction? Probably can be rescaled and moved rotated on the surface after mapping? -B Quote Link to comment
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