Castle Marble Run

Background: This is my second Marble Run model, with a castle theme 🏰. This time I didn't make it print-in-place. While this makes it more complicated, it also allows for more refinement and the use of different colors. This Marble Run, like the previous one, requires no supports because regular supports create a very uneven bottom surface, and specialized support filament requires flushing (unless you are using an H2D or another 3D Printer with 2 or more nozzles. But this would also waste some time. However, I won't dwell on this, because in any case, I have already made it without supports)

Important Notes:

• The Marble Run (only the track part) need to be printed with the lowest layer height, 0.08mm, otherwise the marbles might stop rolling.
• After printing, you will also need to slightly clean the stringing off the track for smoother rolling.
• After assembly, the "elevator" might get a bit stuck, but this problem can be solved by turning it a few times. If it still doesn't work, you can remove the part, sand it, and try again.
• Although there is no specific color filament required, I think PLA Marble would be very suitable because its texture can "decorate" those large blank walls. (This is just my opinion)

Final Effect: After the marble reaches the top via the "elevator" (more like a staircase), there will be a fork in the path. One path goes left, dropping into a winding long track, and the other goes straight, entering a "vortex". There is a mechanism at the fork that will cause the balls to alternately roll into the two tracks. The two tracks eventually merge together and return to the elevator's starting point.