Integrated Timing Belt Loopback Fastener: A Simple, Part-Free Solution
The Simple Elegance of the Integrated Timing Belt Loopback Fastener
In a mechatronics project, the author needed to anchor timing belts to a carriage. Instead of using zip ties or clamps, they designed a loopback fastener directly into the carriage: a circular recess with a spindle and an entry shaft. This approach eliminates extra parts, makes belt attachment and detachment easy, and proves reliable in practice. The author shares the design and its benefits, noting it's not widely used but worth considering for DIY motion systems.
Though there are many options available, if you have control over design of the actuated component, the integrated timing belt loopback fastener may be worth considering.
- deepsun
Prusa Core One uses that technique, or I miss something.
https://help.prusa3d.com/guide/5-corexy-assembly_835522#8648...
- Perz1val
That center pin looks fragile, especially if it's printed along Z axis. How about printing teeth that'd mesh with the belt?
- teraflop
This is indeed a very elegant fastening method.
I wouldn't be surprised if the designer of that CNC machine borrowed it from the popular Prusa MK2 3D printer, which uses a very similar design for its Y-axis belt: https://help.prusa3d.com/guide/2-y-axis-assembly_79992#81120