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Parametric Easy-Print D20

Finally, a D20 you can print with reasonable quality without support material!

This model is fully parametric and can be generated/changed using OpenSCAD. Parameters that can be changed include:

It's all documented in the OpenSCAD file. The STL file is generated from those initial parameters and is sized at a 6" diameter - feel free to scale to whatever size you want.

As for the text, most D20 models out there have text which is inset perpendicular to the die's faces. However, this creates unsupported overhangs which make them difficult and/or impossible to print without support material. Most open source CAD programs do not have the ability to bevel text without a lot of manual tweaking of edge bevel insetting. This model hacks around that by using progressively inset/outset stepping, which means that its text is far easier to print by simulating a proper bevel. And because it's done fully parametrically using OpenSCAD, you can easily change the font, numbering type (Roman numerals, etc.), or other parameters without messing up your edge bevel distances and having to manually rebevel.

This was designed after getting a request for a novelty 6" D20. After looking around other D20 models and realizing how difficult it would be to print them without support, this was the inevitable conclusion. Please pardon the code quality - this was whipped up in a matter of a few hours.

Update April-May 2017:
By request, I'm working on other dice. I'll post links here as I complete them:

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