Flexible Filament Extruder Upgrade for Creality CR-7, CR-10, Ender 2, Ender 3

This is an upgrade for the for Creality CR7 CR10 Ender 2 Ender 3 and Afinibot A5 A31 It will allow these printers to print with flexible filament more reliably using a PTFE insert to close the gap in the extruder that normally allows TPU to ...