Zippy cable trolley

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Zippy - The Symmetrical Filament-Rider Cable TrolleyMeet Zippy, an ultra-lightweight, smooth-rolling trolley designed to travel along a unique track: a taut strand of 3D printer TPU filament! Instead of requiring bulky ropes or expensive steel cables, Zippy is engineered to use standard flexible filament as its guide wire. The inherent high friction and flexibility of the TPU line give the trolley incredible grip, silent operation, and zero slippage, making it an excellent choice for mini camera sliders, desktop automation, or lightweight rigging experiments.🔄 Fully Symmetrical DesignZippy features a completely symmetrical chassis equipped with integrated V-groove wheels to perfectly cradle the filament track. Because it is uniform from top to bottom, the trolley can easily be flipped upside down depending on your mounting needs. Use the integrated lower side openings to tie off a suspended load, or print your own custom counterweight to keep the rig balanced and stable during transit.It utilizes standard, easy-to-source skate bearings and basic metric hardware.🛠️ Hardware RequiredTo assemble one Zippy trolley, you will need:4x Standard Skate Bearings (608-2RS or 608-ZZ, 8x22x7mm)4x M3 Screws (Length: [Insert your length, e.g., 12mm - 16mm])Track: A strand of TPU filament (1.75mm or 2.85mm) stretched taut between two anchor points.🖨️ Print SettingsMaterial: [Insert material, e.g., PLA / PETG / ABS] – The trolley body and V-groove wheels can be printed in a rigid material…