Easy print D12, 20mm high, beveled digits

I tried http://www.thingiverse.com/thing:33313 and found the digits too sharp and caused print issues. I have made this one with the digits impressed with beveled edges, and it seems to work. Also made 20mm high. Works well sprayed with acrylic paint to fill the digits.

I also made the digits all the same way up in the pentagons (i.e with point at top and flat at bottom). Whilst this would allow 6 and 9 to work without an underline, I decided it would avoid arguments to leave that in.

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