Strong Single and Double Pulley for rope (608 bearings)
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Pulley for up to 12mm ropes. Two bearings per pulley wheel. Only three printed parts and three M8 bolts per pulley.
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- Źródło
- Printables
- Kategoria
- Outdoor & Garden
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- Creative Commons — Attribution — Noncommercial — Share Alike
This design is specifically optimized for strength, with bolts that help distribute the load away from the plastic at the end holes (compressing towards the bolt instead of pulling from). It has been tested with 120kg weight, but further testing may be needed for heavier loads. The example prints were done with PETG filament using a layer height of 0.2mm and 5 walls.
There are two parts in this design - the wheel and the frame. Two equal frames need to be printed, with the frames mounted together using M8 bolts and 608 bearings along with the printed wheel. Regular or carriage bolts can be used for assembly, with a single pulley requiring an M8 x 40 bolt and a double pulley requiring an M8 x 60 bolt. Washers can be used for added stability, and should be placed between the double wheels in the double pulley, with a needed thickness between 2.5mm and 3mm.
If additional strength is required, it is recommended to use more walls or a stronger filament. The design can be printed without supports (side down). However, it is important to ensure that the design has sufficient strength for the intended load before using it for critical applications.
Perfect for use with this compact winch for 6mm rope.