![]() ![]() I start by taking two pictures of the front and top of one of the lenses, and then import the pictures into LibreCAD. I used a similar technique to create a pair of parametric 3d-printed glasses frames. Posted in 3d Printer hacks Tagged 3d modeling, dxf, inkscape, laptop stand, openscad Post navigation Any CAD program that puts out DXF (for example, FreeCAD or LibreCAD) ought to work with this technique. Of course, you don’t have to use Inkscape. In this case, though, the shapes actually blend (through the intersection command) to form the final 3D object. ![]() We’ve seen Inkscape used with printers and cutters before to either generate 2D laser cut patterns or define useful outlines. Still, this is a useful technique to generate 3D objects simply if you can get your head around the two shapes involved. This technique is far from general purpose (some objects require more than two views and the profiles aren’t really projections). There are plugins (like the Big Blue Saw plugin) that work better and would probably also work in this application if you don’t want to uses pstoedit. Inkscape can export DXF directly, but it has a lot of limitations. This is different from the usual cases of using Inkscape to trace a scan or generate simple text. The OpenSCAD script rotates the objects to the correct orientation and intersects them to form the final object. Just having a 3D shape of one view isn’t sufficient, though. used pstoedit to convert the EPS output to DXF format. DXF files are still two dimensional, but OpenSCAD can extrude DXF files into 3D shapes. Inkscape is a vector graphics program and generally creates SVG files, although it can also save EPS files. They aren’t exactly orthographic projections of the final product, but the idea is similar. His final product though, was made by creating two views in Inkscape. When wanted a laptop stand for his workbench, he started trying to do a 3D model. After all, the 3D printer software is going to expect a model. These days, you are more likely to create a 3D model of an object, especially if you are going to 3D print it. Even if you didn’t take the class, you’ve probably seen drawings like this where you view a 3D object as a series of 2D views from different angles. If you had a formal drafting class, you probably learned about making orthographic projections–engineering drawings with multiple views (for example, top, front, and right). ![]()
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