Gravitrax compatible balcony / holder

This is a version of a clickable balcony compatible with the Gravitrax marble track. The green insert of the original is not needed to work nethertheless reliable.

****
**Revision History**

V1.0   Initial version
V2.0   Clamping reinforced and dimensions a bit modified for better fitting
V3.0 Clamping hexagon flatted for better first layer adhersion
V4.0 Reinforcements added
****

Happy printing and swing by also my other designs.