Overview
This MK8 extruder is an open source universal suitable for most RepRap and DIY long distance feeding filament 3D Printers.
We have made the NEMA 17 Stepper motor with 4 wires which is specially designed for 3D Printer Controller RAMPS 1.4, so you just need to plug it in, and there you go! no need to buy from others and waste a lot of time trying to figure out how to connect them.
The extruder is almost the most important part for 3D printer, also the most difficult part to calibrate. we have made all metal design to replace plastic parts bowden extruder.
Features
(1) The extrude is with thermistor sensor.
(2) Compatible with ABS and PLA 1.75mm.
(3) NEMA 17 Stepper motor is included in this transaction.
(4) Default for this is with 0.4mm nozzle, and suitable for 1.75mm filament.
Tips:
While using with PLA filament, please always remember to keep the fan on, otherwise it might get jammed and ruin the hot end. PLA is easier to get jammed, so it might require some patience to practice.
For ABS, we would also suggest to keep the fan on, as this is also better. also remember to purchase filament from good reputation seller, as the filament is very important!
Specifications
(1) Nozzle : 0.4mm
(2) Voltage : 12V/24V
(3) Motor Model : SL42STH40-1204A
(4) Nozzle Flow Rate : 24cc / h
(5) Thermistor Tpye : NTC 100K 3950
(6) Sports Shaft Speed : 10-100mm
Motor Parameters
(1) Model:SL42STH40-1204A
(2) Step Angle : 1.8 Deg
(3) Rated Voltage : 2.55 V
(4) Rated Current : 1.7 A
(5) Phase Resistance : 1.5Ω
(6) Phase Resistance : 2.3 mH
(7) Number of Lead Wire : 10-100mm

(1) This kit include all the parts you need for building Kossel Mini 3D printer.
(2) Compared to 3D Printer Prusa i3 Model : easier to assemble, faster printing, print higher objects.
(3) This 3D printer has a simple structure, light and portable, beautiful and trendy. Especially suitable for DIY amateur, artistic design, architectural design, education, 3D photo studio, can be used for printing different items like small components model, decoration, etc.
(4) We have pre-install the 3D printer firmware for you . so even you know nothing about firmware , you can still get it working .

The operating principle of 3D printer is to establish a 3D model by your computer, and use slicing software system to do the slicing work for the 3D model then save to the SD card for ready to print.

After successfully launched Sintron first DIY 3D printer model Prusa i3, this one is Sintron's 2nd DIY kit : Kossel, This kit include all the parts you need for building Kossel Mini 3D printer. and as always, we will provide our professional advise if customer is not familiar with it, so you are not just buying the hardware, you also got our tech support for this kit !

The difference between this kit with others are : We provide MK3 heated bed, auto level probe function, MK8 extruder and excellent bowden hotend.

Package list and Kossel Mini Specifications : please check the main picture for list.(Please notice : the filament on top is not included in this transaction)