"Skelton" Column Spacers for Gravitrax (24/12/28 updated to v1.1)

2024/12/28 : I uploaded v1.1. 
I've tweaked the design slightly to lessen the overhangs, resulting in improving printability. Additionally, I've eased the fit at the top for a more snug but not too tight connection.

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As I've been using both Gravitrax-genuine and custom-designed column spacers, I've identified several frustrations:

1. Obstructed visibility: The column spacers significantly hinder or completely block my view of the area beyond them, reducing overall course visibility.
2. Rail installation difficulty: Even when the spacers are designed to accommodate rails, the narrow space in both the horizontal and vertical directions make rail installation annoying.
3. Instability: Especially when stacked, the spacers become noticeably wobbly.

Therefore, I have created column spacers with the following characteristics:

• Large openings: The openings are maximized, except for the essential column parts, with a strong emphasis on facilitating easy rail handling during the design process. (Addressing frustrations #1 and #2)
• Expanded base: The base is wider than that of the genuine hexagonal column spacer to reduce wobbling. (#3)

I'm quite satisfied with the results. 
I've prepared three height options: 50mm, 70mm, and 100mm. 

When the column spacer and ring are integrated, I've wasted a lot of filament and print time if the ring doesn't fit properly. (I've had this experience many times.) - so, I separate the ring from the main body. Two types of rings are available. 
And, you can also use the rings from Hubert76's design for a looser fit : https://www.thingiverse.com/thing:4721294

No supports are necessary.
However, the overhang is quite tight near the ceiling, so depending on the finish, some sanding may be necessary.

To enhance stability, a single ball can be stored in the base. 
I apologize in advance if this feature is underutilized :P