IR filament-sensor

Optical filament sensor on the extruder, introduced with the S-upgrade for the Original Prusa MK3/S and MMU2S.On the MK3/S, it is activated when the steel ball pushed the fs-lever into the sensor. On the MMU2S, it is activated when the filament pushes apart the extruder Bondtech gears and the extruder idler arm is pushed into the sensor.

Failing Z calibration (MK3S/MK2.5S)

The size of the extruder and the length of travel of the Z-axis is coded into the firmware. Therefore, if the assembly of the extruder, or the firmware for your extruder, is not…

How to replace a heatbreak/heaterblock/heatsink (MK3/MK2.5)

Err: PRINT FAN ERROR

PRINT FAN ERROR error message occurs when the print fan (the one at the front of the extruder) does not receive any RPM (Revolutions per Minute) readings. This can be caused by…