giraffe112358

N20 worm drive motor

USB cable to power motor

cover

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Main Body

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Manual screw

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Motorized Screw

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0.2mm layer, 2 walls, 6% infill

CypherForge

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I loved the original design but it was a bit large for my desk setup, so I decided to shrink it to half the original size. To make it work at that scale, I swapped the original 8 mm steel balls for ball bearings from a 608 bearing (about 3.97 mm each) and it works great!&nbsp;The challenge was keeping everything smooth and functional at this tiny scale without the balls getting stuck. I used a 0.2 mm nozzle and 0.06 mm layer height to preserve all the fine details, and it printed flawlessly on my Bambu Lab P1S. The balls move freely right off the bed with no sanding, but it does but it does take longer, so just print it overnight.&nbsp;Print Settings:<ul><li>Printer: Bambu Lab P1S</li><li>Slicer: Bambu Studio (scaled to 50 %)</li><li>Nozzle: 0.2 mm</li><li>Layer Height: 0.06 mm</li><li>Walls: 2</li><li>Infill: 10 % gyroid or cubic</li><li>Supports: None</li><li>Adhesion: No brim or raft needed with good bed leveling</li></ul>Tip: I suggest staying away from Silk filament, as the balls might get stuck, but you can try it at your own risk.&nbsp;If you’re like me and you want the original design in a compact form, this version is for you. It’s small enough to fit in your palm yet fully functional

Mini Desk-Sized Version Using 608 Bearing Balls - 50% Scale

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Revised hole in spiral to better fit the N20 motor with 3 mm shaft provided by Bambu. For me, the existing profile&#39;s hole was too small/tight and the spiral can only be inserted from the top which limits accessibility. This hole size also allows moving the spiral up and down slightly to reduce noise. Recommend printing the spiral with a raft to keep it from knocking over while printing. The rest of the model has a finer print setting for smoother ball running and more outside layers to stand up to kids. This does mean it will take longer to print than the original profile. For those interested in the power supply shown in the picture, it is a 4 AA battery box with USB port and on/off switch obtained from Amazon, easily found with a search since there are multiple sellers.

0.16mm layer, 4 walls, 10% infill, revised shaft for motor

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.

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

After uploading several fractal marble runs to Makerworld, I received multiple requests to motorize them. This is the first motorized version: a Moore curve with a “double” spiral lift that returns marbles to the top.A motor is optional—you can also use the manual spiral lift to move marbles by hand. The motor can be mounted using zip ties.<h3>This model includes two types of marble lifting screws:</h3><ul><li>Motor-only screw – designed specifically for use with a motor.</li><li>Manual/motor hybrid screw – can be operated by hand or powered by a motor.</li></ul><h3>Additional parts needed:</h3><ul><li>8 × 8mm bearings</li><li>1 × N20 motor with worm gear reduction</li></ul>Note: The motor available on Makerworld fits only if the pcb is removed and a power cable is soldered directly to it.&nbsp;

Manual/ Motorized Hilbert Curve Marble run (Moore)

ASIA

Print Profile(3)

Bill of Materials

Description

This model includes two types of marble lifting screws:

Additional parts needed:

Comment & Rating (154)

License

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