My K1 came out of the box with a broken holder for the Bowden chain. First I downloaded a random holder and reprinted it. But over time it didn't hold as well, the lower wing side bent downwards, not to mention that the holes were too small. So I designed a holder with a reinforced bottom 'wing', which has served me very well so far.
I printed with:
- 0.12mm layer
- 100% infill
- PLA (more heat-resistant would be better)
I created the component in Fusion360 (free) and processed it in the Orca slicer. Printed on a K1.