[Anet/Prusa i3] Z probe mount + (Fan) mount

thingiverse

This mod includes two components: the Z-probe mount and an optional fan mount. The probe holder is positioned at the back of the extruder motor, making it easier to configure the fan location. It is securely attached to the motor itself using two slightly longer screws than those inside the stepper. The bracket is sturdy due to a long vertical sleeve for the sensor, keeping the probe firmly in place and preventing movement. There are two file versions available: probe_holder_plain for the Z-probe only and probe_holder with additional holes for the fan mount. The fan mount bracket was designed specifically for my setup and the fan duct I used (https://www.thingiverse.com/thing:2088006). You may need to adjust the sizes slightly, as Solidworks sources are provided. This design is convenient because it requires only one screw to attach it to the print head frame, with the other end fixed to the probe_holder. To mount the fan to the bracket, you will need two M3 screws and nuts. After several weeks of using this setup, I am very satisfied with the results. I no longer experience issues with the sensor moving, and I can confidently recommend the Spaceship fan duct. It is much stronger than the original one (Prusa-like), and I am printing at only 80% fan speed, which prevents prints from becoming too brittle. This may be due to a high cooling rate when using 100% fan speed or poor quality PLA filament. I strongly advise printing both parts in ABS or other heat-resistant materials, rather than PLA. PETG might also work.