When you need to replace the Hotend thermistor E3D he you follow the manual that you find here on Prusa3D

PLA GLITTER

* Pantone: Cool Gray 5CP

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Stepper driver module - Carrierboard - A4988 Prusament When you need to replaceA4988 Stepper driver module This product is a carrier board or breakout board for the Allegro A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection from Pololu. This stepper motor driver allows you to control a bipolar stepper motor with up to 2 A output current per coil. Features: Protection against short circuit to ground and short circuited load Adjustable power control Intelligent chopping control Overtemperature thermal