Gravitrax compatible Snake Rail

Graxitrax compatible "Snake Rail". I made the rail rather stiff so it won't sag too much when loaded with multiple balls. The tails at both ends diverge slightly which makes them clamp and prevents the rail from tilting. There's also raised "banks" at either end to allow for a higher entry speed.

Here's a Youtube video:

https://www.youtube.com/watch?v=gfQwBJXp8_Y

1st update: With the current design, support is no longer needed. Please note that there's two versions, one of which features tailor-made "brims" at the rail ends which make printing easier but need to be cut or broken off after printing. If you still have trouble printing, I recommend using a VERY low speed for the first layer.

2nd update: I added a longer version (with "brims"). You can see it in action here:

https://www.youtube.com/watch?v=vjdQzrGGb1A

Enjoy!