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UPDATE: added version 6 of Thing #24808
This is version 6 of Thing #24808
Libre Graphics World has a nice write up by Alexandre Prokoudine of this extension at http://libregraphicsworld.org/blog/entry/inkscape-gets-openscad-converter
This Thing is an Inkscape extension to export Inkscape paths to OpenSCAD. There has been at least one prior Thing attempting this, Thing #9376. However, it only handled a small subset of SVG. This extension handles SVG arcs, clones, circles, ellipses, groups, lines, paths, polygons, polylines, rects, and splines. It also follows document transforms as well as viewports. Either an entire document or just the selected portions of a document are processed.
SVG text must first be converted to a path within Inkscape using Inkscape's "Path > Object to Path" menu item.
Note that another approach to importing SVG into OpenSCAD is to save the SVG to DXF from within Inkscape. Then use OpenSCAD's import() function to import the DXF. [Older versions of OpenSCAD used import_dxf().]
Much of the core code in this extension is derived from work done by myself and others while developing the Inkscape driver for the Eggbot.
15 June 2012: Added support for a single level of polygon nesting. I.e., subtract from a polygon the polygons contained within it AND from the same Inkscape path. This works well for most fonts. You can tell Inkscape to combine multiple polygons into a single path by selecting the polygons and then using "Path > Combine". (You do not need to do this for text converted to a path: Inkscape already does the proper combining.)
15 June 2012: Corrected Windows issue with handling of Unix-style file paths.
21 June 2012: Correct a typo in the extension. Would not affect content generated by Inkscape but might have affected SVG content generated elsewhere and loaded into Inkscape.
9 May 2013: Modified the code to remove non alphanumeric characters from the strings used to generate the OpenSCAD module names. Some SVG paths had non alphanumeric characters in their path ids and those ids were being used to generate OpenSCAD module names. OpenSCAD doesn't allow that.
29 May 2013: Corrected an issue whereby the converted could exit with an error when attempting to warn about images embedded in the SVG file or Inkscape drawing. Images are not allowed and the converter cannot convert them. However, it should gracefully warn about the issue and exit normally.
30 May 2013: Fixed a bug in the v4 version.
16 Aug 2013: Possible workaround to Inkscape bug experienced by some users, "terminate called after throwing an instance of 'std::logic_error' what(): basic_string::_S_construct null not valid"
MAC 10.7 or later users, see the second note in the Notes section! This means Lion, Mt. Lion, and beyond.
Download the paths2openscad-2.zip file from this page. After unzipping that archive, you should have two files: paths2openscad.py and paths2openscad.inx .
Once you have downloaded paths2openscad.zip, open the zip file and place its contents in your local Inkscape extension folder,
on Linux and OS X. On Windows systems, you can place them directly into the Inkscape extension directory. For example, if Inkscape is installed in C:/Program Files/Inkscape then the extension directory will be C:/Program Files/Inkscape/share/extensions.
Once you have placed the two files in the proper directory, exit and then restart Inkscape. The extension should appear under the "Extensions > Generate from Path" menu as "Paths to OpenSCAD".
To use the extension,
Inkscape to OpenSCAD converter v6 by dnewman is licensed under the GNU - GPL license.
So what's this mean?
We're sure dnewman would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!