Lullaby Express - dream train music box
Print Profile(1)

Bill of Materials
Description
This music box train is a sweet and evocative decorative item, designed to provide a moment of calm, fantasy, and nostalgia.
Once wound, the train begins its journey on the base, accompanied by a delicate melody emanating from the little hearts, creating a truly magical visual and auditory effect.
The movement is slow and harmonious, like a small journey on imaginary tracks, capable of capturing attention and conveying serenity.
The little train, with its soft and playful shapes, evokes the world of childhood, fairy tales, and unhurried travel.
The heart-decorated base is not just an aesthetic element, but an integral part of the experience: it is from there that the music comes to life and gently spreads throughout the environment, accompanying the train on its journey.
The model is designed to be assembled using the Piano Music Box Bottom Winding Kit – K014, making assembly simple and accessible to everyone.
🎶 One turn, one melody, and the little train sets off on its journey.
💖 A small music box that makes you smile at first sight.
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🛠️ Assembly steps
1️⃣ Print
Print both parts:
• the little train with the pin housing
• the base with the little hearts
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2️⃣ Support removal
Carefully remove all supports from the little train and the pin, leaving the parts clean and ready for assembly.
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3️⃣ Inserting the music box key
Insert the music box key into the slot of the printed pin.
It is normal for some force to be needed: the key must fit snugly to prevent unwanted movement.
To facilitate the operation:
• place the pin on a hard surface
• push the key all the way in
⚠️ Make sure the key is fully inserted, otherwise it might get stuck on the base during rotation.
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4️⃣ Train + pin assembly (GLUE → INSERT)
Apply a small amount of glue (cyanoacrylate or plastic-appropriate glue) inside the train's housing or on the part of the pin that will be inserted.
Immediately after:
• insert the pin into the train until it stops
• hold the pin in place for a few seconds, ensuring it remains perfectly straight
👉 This step is essential to ensure:
• stability during rotation
• absence of play or vibrations
• smooth and long-lasting rotation
Allow the glue to dry completely before proceeding.
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5️⃣ Mounting the mechanism in the base
Place the Piano Music Box Bottom Winding Kit – K014 into its housing inside the base.
Holding the mechanism steady with one hand, flip the base over and:
• insert the three screws into the designated holes
• tighten them with a Phillips screwdriver
⚠️ Do not overtighten: a gentle tightening is sufficient to secure the mechanism. Excessive force could damage the plastic.
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6️⃣ Final assembly
Screw the little train, with the pin and key already assembled, clockwise onto the pin of the music box mechanism.
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✨ The magical moment
Hold the base steady with one hand and rotate the little train clockwise to wind the music box.
Release…
the little train will begin its rotation and the music will gently emerge from the little hearts, like a small journey coming to life.
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.




















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