Endless Droid Escape Motorised Marble Run - Free 3D Print Model

Description

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Get ready to race with BB8 droids endlessly fleeing through the vast deserts of Jakku! This Star Wars-inspired marble run takes you on a thrilling journey, packed with exciting obstacles and imaginative scenery.

The adventure begins at the moving steel containers, which act as giant steps powered by an ingenious Scotch Yoke mechanism. Once the marbles make it to the top, they race downhill on a winding, sandy trail that even passes under a wrecked wing from a downed TIE Fighter, now serving as a mysterious tunnel.

At the end of the track, the marbles arrive at a rotating cannon turret, where two slots welcome them. The turret spins thanks to the gears beneath, and the droids are launched back to the beginning to start their escape all over again!

Printing

Printing is a breeze if you follow my recommended profiles.

The base is the trickiest part to print, so be careful not to use low resolutions, or the sloped surfaces will turn into steps that are hard to navigate. My print profile uses adaptive layers, keeping the resolution low where it’s not needed and high on the slopes. It takes a bit longer, but it ensures you’ll have a flawless track.

The design is lightweight yet robust, and assembly is just as easy! Simply check the photos for guidance on placing each component. The only part requiring glue is the wreckage tunnel, while the motor (T1) is secured to the base with two M3x25 screws and one M3x8 screw — make sure it’s firmly attached!

This project was incredibly fun to design, especially the Scotch Yoke mechanism, which was both a challenge and a delight to create.

I hope you enjoy building and racing on this model as much as I enjoyed designing it.

May the marbles be with you!

Assembling

Start by screwing the TT motor to the base using at least one M3x25 screw and the M3x8 screw. Then, attach the Main Gears to the TT motor.

Take the track and add the Step Gear (red). Rotate it a few times to ensure it fits smoothly into its slot. Next, take the Steps part, align it starting from the slot, and place it on the gear pin.

Rotate the Steps until the shorter section aligns with the track slot. Gently push it into place. Test the mechanism by rotating the gear—the Steps should move up and down smoothly.

Take the two single step pieces and slide them into their respective slots in the track. Make sure the sloped part is facing to the left.

Place the Track on the base using the four pins, then flip the assembly upside-down. Insert the gears holder into the designated slots.

Assemble the turret parts, then slide the completed turret into the hole on the Track.

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License

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This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.