The moment has arrived: the marble run's spheres are poised to defy gravity itself.

The countdown commences; two astronauts embark upon their rocket, and liftoff ensues.

The rocket, elevator, and guides must be printed with 100% infill to ensure precise weight alignment.

The elevator, pillars, and guides require smoothing with a file to guarantee effortless movement.

The gear, too, must rotate smoothly within its pillar.

During assembly, confirm once more that smooth operation is maintained.

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English:

Now the time has come: the balls on the marble run finally want to escape gravity.

The countdown begins, two astronauts climb into the rocket and it takes off.

The rocket, lift and guides must be printed with 100% infill for the weights to match.

The lift, the pillars and the guides must be smoothed with a file so that they run very smoothly.

The gear must also run very easily in the pillar.

When assembling, also check again that smooth running is ensured.