A simple, geometric, arcane circle to be added to a 2D or 3D gaming table layout. I plan to print up a bunch in various colors to use in my DnD game as teleportation circles, summoning circles, protection from evil... maybe even glyphs. This was specifically designed to be printed on an FDM printer with a 0.4mm nozzle. Scaling it up should be fine but down is inadvisable.

If you need a 1 inch circle, try a Glyph Marker instead: http://www.thingiverse.com/thing:2022826