Stronger Extruder Idler for Eckertech Extruder

thingiverse

The default idler frequently splits between layers after continuous tightening, and it's challenging to make it sufficiently firm on hobbed bolts cut deeper than their own bolt, which is known as the best hobbed bolt in the market. To resolve this issue, I created a clone in OpenSCAD that prints in reverse, eliminating layer bonding problems. Print it with PLA; ABS may weaken over time due to its flexibility. As shown in the video, it fits perfectly like the original part. If you encounter any issues, feel free to suggest improvements. Here's a demo video: http://youtu.be/HmJ9fMMfU7o. STL files with and without support are provided for printing.