K Extruder

From RepRap
Jump to: navigation, search
Crystal Clear action run.png
K Extruder

Release status: working

K Extruder.jpg
42 Stepper motor Extruder Driver
CAD Models
External Link


This page describes the K extruder for RepRap Mendel.

This extruder is designed to work with a supply of 3mm diameter plastic feedstock. If you want to use 1.75mm diameter plastic, see this extruder instead.

The K Extruder is based on Minimalistic Mk7 replacement.

K Extruder.jpg

I wanted to design a single extruder driver that could

  1. Be bolted to the X carriage of Mendel and run as a normal extruder,
  2. Be mounted with J Head Nozzle, and
  3. it is easy to assembly.


  1. A small filament driver means that the motor runs on low current;
  2. We use screw tap to make the filament driver;
  3. A large motor with high torque, do not need gears;
  4. Uses the 623 bearing;
  5. Designed to work at higher extrude speeds than the old Mendel extruder, giving shorter build times;
  6. The back is open to make it easy to clean the teeth of the drive gear.

Where to get it

  1. rp3d.com: rp3d.com


The PDF version can be found here:K_Extruder.pdf

K extruder 01.jpg K extruder 02.jpg K extruder 03.jpg K extruder 04.jpg K extruder 05.jpg K extruder 06.jpg K extruder 07.jpg K extruder 08.jpg K extruder 09.jpg K extruder 10.jpg K extruder 11.jpg K extruder 12.jpg K extruder 13.jpg K extruder 14.jpg K extruder 15.jpg K extruder 16.jpg K extruder 17.jpg K extruder 18.jpg K extruder 19.jpg