Cookie cutters in various shapes (+ scripts to make more), for those of you that have a 3D printer.
- Install the extension
In the contrib directory there is an extension for Inkscape
(also on github)
that you have to install first. Copy all files
$HOME/.config/inkscape/extensions (no subdirs).
- Draw the silhouette
Create a SVG file in Inkscape with 3 layers: "cutter" (cutting parts),
"join" (unions between parts, optionally), "outer" (outer
silhouette). Mark the center on all three layers with a couple of
crossing lines (the script uses dxf_cross in OpenSCAD later to get
the center right, so this is very important). See the SVG files for some
examples.
- Convert to DXF
Save a copy of the file in DXF format. You should see "OpenSCAD DXF Output (*.DXF)" as an option in the output format list.
- Create an OpenSCAD file
The file should be something like:
#include <cookie_cutter.scad>
cookie_cutter("star.dxf", 15, 3.5, 0.4);
The module cookie_cutter has 4 parameters: filename (the DXF file
you exported before), height (in mm), join height (in mm), and
nozzle_width, so that you can adjust to you printer nozzle. (The
idea here is that the walls of the cutter will be sliced with 2 lines
and the final part will use 1 line, to make it sharper.)
If you need to join the diferent parts of the cutter, use
cookie_cutter_join:
#include <cookie_cutter.scad>
cookie_cutter_join("star_hollow.dxf", 15, 3.5, 0.4);
The difference between the two versions is just that the version with
join will use the "join" layer in the DXF and the other one won't.
- Compile and export to STL
Compilation might be slow, since thecookie_cutter module uses
minkowski in several places. Export to STL, and then...
Enjoy!