Micro Swiss Direct Drive Extruder (Extruder Only) for Creality CR-10 - Ender 3 Printers Creality 3D - Ender-5/ Pro - Reservedel some pins have specialized functions:

some pins have specialized functions: Serial: 0 (RX) and 1 (TX)

Relatively low melting point

4 kB EEPROM 4 x UART 16 x analog input 54 x digital I/O pins (of which 14 provide PWM output signal) USB port USB plug for Android phone (ADK only -version) ICSP pin list Reset button Power per I/O pin: 40 mA Current to +3

this helps get rid of the pressure in the hot-end and therefor also making a retraction move more effective

KungFuFlex - Medium Flex - 98A - Mailbox Red - 1

Micro Swiss Direct Drive Extruder (Extruder Only) for Creality CR-10 - Ender 3 Printers Creality 3D - Ender-5/ Pro - Reservedel some pins have specialized functions:Upgrade your Creality 3D printer extruder with this Direct Drive setup from Micro Swiss. ONLY DO NOT EXTRUDE HOTEND Micro Swiss Direct Drive Extruder fits CR10 Ender printers. Stepper motor and wheels not included Micro Swiss Direct Drive Extruder with hot end for Creality CR 10 Ender 3 Printers Features: Dual drive train Hardened tool steel, CNC precision cut gears Adjustable filament grip Easy filament loading Short, highly constrained filament path