Self-Locking Rope Pulley – 3D Printed Cam Block
Print Profile(1)
Description
Boost Me (for free)
If you like this self-locking rope pulley, please consider boosting! 🚀 It’s a compact and functional mechanical design, and your support helps me create more clever 3D printed mechanisms. Thanks!
The mechanism is based on a compact pulley system integrated with a cam locking module. The design utilizes two standard 608 ball bearings (8×22×7 mm) to ensure low-friction rotation and consistent performance under load. Dedicated bearing seats are integrated into the model geometry, providing proper alignment and press-fit compatibility after printing.
The locking system is driven by an internal 3D printed flexure spring, engineered to generate sufficient clamping force on the rope without requiring additional metal spring components. This simplifies the assembly while maintaining reliable one-directional locking behavior.
The cam profile is optimized for effective rope gripping under tension, while allowing smooth release when unloaded or manually disengaged.
Required hardware:
- 2× M4×20 mm screws
- 2× M4 nuts
The design is intended for light-duty applications and prototyping purposes. It is not rated for safety-critical or load-bearing applications involving human weight.
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.
Comment & Rating (5)