Maths cookie cutter set
by mrbenbritton, published
This is the set for you. It includes some of the most opoular numbers not included in the standard 0-9 set as well as a few of the less common variables and the integral opperator.
The set contains:
e, i, pi, phi, Sigma (big and little), i, sqrt(-1), integral sign.
If you feel I have missed something out I may do requests if you ask nicely and promise to post pictures.
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If you have a "creme bruille burner" (hope you understand what I mean) or similar tool with a very hot flame, you can give a short (and here I mean really short *gg*) heating to the printed object and all the fine hairs are gone ...
I haven't found a way to print without getting the hairs (I print with PLA which is more stringy than ABS). I spend a few minutes with a craft knife to tidy it up.
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To make a geeky maths cutter, first download your choice of symbol (or download the zip file to get all of them in one handy package) Print it then make cookies.
This site has a great recipe: thehungryhousewife.com/2009/10/sugar-cookie-and-icing-tips.html . Roll thin, cut out, bake and eat. Don't forget to make bad jokes about imaginary cookies!
If you want to create your own cookie cutter you will need:
An image editor that can export to DXF (I use inkscape)
The cookie cutters are generated by the CookieCutter2.scad OpenSCAD script. They use different layers of a DXF to make different parts of the cutter
This becomes the blade of the cutter
This is where you draw things to hold floating sections of the blade (the hole in the 0)
This defines areas to remove the flange from (the hole in the 0)
Not used for this set, see Thing 32431
Have a look at the two SVG files included here for examples of how the layers work.
Create your image and massage all layers into a workable form and save as a DXF (look at repraprip.blogspot.co.nz/2011/05/inkscape-to-openscad-dxf-tutorial.html for instructions)
You will need to edit the CookieCutter2.scad file to open your dxf. Run the script to generate the cutter, it may take 10 minutes or so depending on your machine. Export the STL and start printingyour own cutters. Don't forget to post them here!
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