October 7, 2025
Description
This is a replacement and improved control knob designed for the De'Longhi EC260 espresso machine. Many original knobs tend to break over time, especially at the mounting point on the back.
I modeled this knob to be a direct replacement for the original, but with a design that enhances its ergonomics and internal strength, especially when printed with robust materials like PETG. Your coffee is safe!
✅ Perfect Fit: Custom designed for the rotation axle of the De'Longhi EC260.
✅ Improved Durability: Built to be printed in tougher materials (like PETG) to overcome the weak point found in the original part.
✅ Full Functionality: Maintains the selection function for "Steam," "Hot Water," and "On/Off."
✅ Maintained Aesthetics: The design integrates seamlessly with the machine's look.
For a kitchen component that needs to withstand heat and humidity, and handle mechanical torsion, I strongly recommend PETG.
| Setting | Recommendation | Rationale |
|---|---|---|
| Material | PETG (Recommended) or ABS | Superior heat and moisture resistance compared to PLA. |
| Layer Height | 0.15mm or 0.20mm | Good balance between aesthetic detail and print speed. |
| Infill | 40% - 60% | Crucial! High infill ensures the mechanical strength needed when twisting the knob. |
| Perimeters (Wall Loops) | 3 - 4 | Increases outer robustness, essential for preventing torsion breakage. |
| Supports | No (if correctly oriented) | Print the knob with the flat front surface contacting the build plate. |
Carefully remove the broken original knob (if it's still on the axle).
Align the hole on the back of the printed knob with the control axle of the coffee machine.
Push with even pressure until it is firmly seated in place.
License:
Creative Commons — Attribution — Noncommercial — Share Alike
3DPrintDesigns.it
