The file 'Crayon Maker/Recycler Kit With Sharpener (Parametric) 3D Printer Model' is (stl,scad) file type, size is 49.1KB.
This is a fully parametric kit that will allow you to make triangular crayons (or recycle bits and pieces of old crayons into triangular crayons) and a sharpener. This shape is easier to cast, easy for little fingers to grasp, and easier to stack. It also won't roll off the drawing surface, and promotes a proper pencil grip.
Many aspects of the kit are parametric, such as number of crayons, thickness, length, sharpening angle, etc. You may need to tweak the settings a bit for the best results on your printer.
There's an STL for each part using the default settings. You can make just the crayon mold, or both the mold and a sharpener that fits the crayons you specified. Follow the instructions and take a look at the pictures for details.
This is a great project to do with kids -- I've tested it! :)
There are 21 parameters, and the code is fully commented, so tweaking it should be straightforward.
CrayonCutter-042.stl | 171.9KB | |
CrayonGuide-042.stl | 123.6KB | |
CrayonKit-042.scad | 13.1KB | |
CrayonMold-042.stl | 85.0KB | |
CrayonSharpener-042.stl | 299.1KB |