Eustathios Bearing Holder

Remix of Eric Lien's [Eustathios v2 Spyder](https://github.com/eclsnowman/Eustathios-Spider-V2) bearing holders, should be the same in all the significant dimensions.

Should be printable flat without support.

**Filaments:** (full list can be found on [thrinter.com](http://thrinter.com/filaments))
-- [3D Supply Source Clear PETG](http://thrinter.com/walters-filament-collection-petg/#3dss-clear)