Trigonal BiPyramidal Molymod-Compatable

This remix changed the hole orientation (90, & 120 deg) to allow for 5 bonds. The Hole sizes were varied depending on the orientation to the print bed as well as the print material used. A hole calibration block is included on this print bed as well to get better feedback on your own prints (Silk PLA will have a different fit). This specific geometry was not mentioned on @Hwangers bucket list and was needed asap for my own molecular models. To ease the task for others changing hole sizes, my quick-and-dirty fusion 360 source file is being posted here as well.  This model is comparable to the Molymod Beige Ball.